WIP stashed changes

For the threads scheduler, it makes sense to have NumCPU available.
For all other schedulers, the number of available CPUs is practically
limited to one by the scheduler (even though the system might have more
CPUs).

.circleci/config.yml

@@ -10,12 +10,12 @@ commands:
     steps:
       - restore_cache:
           keys:
-            - llvm-source-18-v1
+            - llvm-source-19-v1
       - run:
           name: "Fetch LLVM source"
           command: make llvm-source
       - save_cache:
-          key: llvm-source-18-v1
+          key: llvm-source-19-v1
           paths:
             - llvm-project/clang/lib/Headers
             - llvm-project/clang/include
@@ -109,12 +109,12 @@ jobs:
           # "make lint" fails before go 1.21 because internal/tools/go.mod specifies packages that require go 1.21
           fmt-check: false
     resource_class: large
-  test-llvm18-go123:
+  test-llvm19-go123:
     docker:
       - image: golang:1.23-bullseye
     steps:
       - test-linux:
-          llvm: "18"
+          llvm: "19"
     resource_class: large
 
 workflows:
@@ -123,5 +123,5 @@ workflows:
       # This tests our lowest supported versions of Go and LLVM, to make sure at
       # least the smoke tests still pass.
       - test-llvm15-go119
-      # This tests LLVM 18 support when linking against system libraries.
-      - test-llvm18-go123
+      # This tests LLVM 19 support when linking against system libraries.
+      - test-llvm19-go123

.github/workflows/build-macos.yml

@@ -45,7 +45,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-source
         with:
-          key: llvm-source-18-${{ matrix.os }}-v2
+          key: llvm-source-19-${{ matrix.os }}-v1
           path: |
             llvm-project/clang/lib/Headers
             llvm-project/clang/include
@@ -70,7 +70,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-build
         with:
-          key: llvm-build-18-${{ matrix.os }}-v3
+          key: llvm-build-19-${{ matrix.os }}-v1
           path: llvm-build
       - name: Build LLVM
         if: steps.cache-llvm-build.outputs.cache-hit != 'true'
@@ -126,7 +126,7 @@ jobs:
     runs-on: macos-latest
     strategy:
       matrix:
-        version: [16, 17, 18]
+        version: [16, 17, 18, 19]
     steps:
       - name: Set up Homebrew
         uses: Homebrew/actions/setup-homebrew@master
@@ -150,8 +150,8 @@ jobs:
       - name: Check binary
         run: tinygo version
       - name: Build TinyGo (default LLVM)
-        if: matrix.version == 18
+        if: matrix.version == 19
         run: go install
       - name: Check binary
-        if: matrix.version == 18
+        if: matrix.version == 19
         run: tinygo version

.github/workflows/linux.yml

@@ -48,7 +48,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-source
         with:
-          key: llvm-source-18-linux-alpine-v1
+          key: llvm-source-19-linux-alpine-v1
           path: |
             llvm-project/clang/lib/Headers
             llvm-project/clang/include
@@ -73,7 +73,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-build
         with:
-          key: llvm-build-18-linux-alpine-v2
+          key: llvm-build-19-linux-alpine-v1
           path: llvm-build
       - name: Build LLVM
         if: steps.cache-llvm-build.outputs.cache-hit != 'true'
@@ -205,7 +205,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-source
         with:
-          key: llvm-source-18-linux-asserts-v1
+          key: llvm-source-19-linux-asserts-v1
           path: |
             llvm-project/clang/lib/Headers
             llvm-project/clang/include
@@ -230,7 +230,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-build
         with:
-          key: llvm-build-18-linux-asserts-v2
+          key: llvm-build-19-linux-asserts-v1
           path: llvm-build
       - name: Build LLVM
         if: steps.cache-llvm-build.outputs.cache-hit != 'true'
@@ -321,7 +321,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-source
         with:
-          key: llvm-source-18-linux-v1
+          key: llvm-source-19-linux-v1
           path: |
             llvm-project/clang/lib/Headers
             llvm-project/clang/include
@@ -346,7 +346,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-build
         with:
-          key: llvm-build-18-linux-${{ matrix.goarch }}-v2
+          key: llvm-build-19-linux-${{ matrix.goarch }}-v2
           path: llvm-build
       - name: Build LLVM
         if: steps.cache-llvm-build.outputs.cache-hit != 'true'

.github/workflows/llvm.yml

@@ -35,8 +35,8 @@ jobs:
         uses: docker/metadata-action@v5
         with:
           images: |
-            tinygo/llvm-18
-            ghcr.io/${{ github.repository_owner }}/llvm-18
+            tinygo/llvm-19
+            ghcr.io/${{ github.repository_owner }}/llvm-19
           tags: |
             type=sha,format=long
             type=raw,value=latest

.github/workflows/nix.yml

@@ -29,7 +29,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-source
         with:
-          key: llvm-source-18-linux-nix-v1
+          key: llvm-source-19-linux-nix-v1
           path: |
             llvm-project/compiler-rt
       - name: Download LLVM source

.github/workflows/sizediff-install-pkgs.sh

@@ -2,11 +2,11 @@
 # still works after checking out the dev branch (that is, when going from LLVM
 # 16 to LLVM 17 for example, both Clang 16 and Clang 17 are installed).
 
-echo 'deb https://apt.llvm.org/noble/ llvm-toolchain-noble-18 main' | sudo tee /etc/apt/sources.list.d/llvm.list
+echo 'deb https://apt.llvm.org/noble/ llvm-toolchain-noble-19 main' | sudo tee /etc/apt/sources.list.d/llvm.list
 wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
 sudo apt-get update
 sudo apt-get install --no-install-recommends -y \
-    llvm-18-dev \
-    clang-18 \
-    libclang-18-dev \
-    lld-18
+    llvm-19-dev \
+    clang-19 \
+    libclang-19-dev \
+    lld-19

.github/workflows/sizediff.yml

@@ -30,7 +30,7 @@ jobs:
         uses: actions/cache@v4
         id: cache-llvm-source
         with:
-          key: llvm-source-18-sizediff-v1
+          key: llvm-source-19-sizediff-v1
           path: |
             llvm-project/compiler-rt
       - name: Download LLVM source

.github/workflows/windows.yml

@@ -47,7 +47,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-source
         with:
-          key: llvm-source-18-windows-v1
+          key: llvm-source-19-windows-v1
           path: |
             llvm-project/clang/lib/Headers
             llvm-project/clang/include
@@ -72,7 +72,7 @@ jobs:
         uses: actions/cache/restore@v4
         id: cache-llvm-build
         with:
-          key: llvm-build-18-windows-v2
+          key: llvm-build-19-windows-v1
           path: llvm-build
       - name: Build LLVM
         if: steps.cache-llvm-build.outputs.cache-hit != 'true'

GNUmakefile

@@ -10,7 +10,7 @@ LLD_SRC ?= $(LLVM_PROJECTDIR)/lld
 
 # Try to autodetect LLVM build tools.
 # Versions are listed here in descending priority order.
-LLVM_VERSIONS = 18 17 16 15
+LLVM_VERSIONS = 19 18 17 16 15
 errifempty = $(if $(1),$(1),$(error $(2)))
 detect = $(shell which $(call errifempty,$(firstword $(foreach p,$(2),$(shell command -v $(p) 2> /dev/null && echo $(p)))),failed to locate $(1) at any of: $(2)))
 toolSearchPathsVersion = $(1)-$(2)
@@ -147,7 +147,7 @@ endif
 MD5SUM ?= md5sum
 
 # Libraries that should be linked in for the statically linked Clang.
-CLANG_LIB_NAMES = clangAnalysis clangAPINotes clangAST clangASTMatchers clangBasic clangCodeGen clangCrossTU clangDriver clangDynamicASTMatchers clangEdit clangExtractAPI clangFormat clangFrontend clangFrontendTool clangHandleCXX clangHandleLLVM clangIndex clangLex clangParse clangRewrite clangRewriteFrontend clangSema clangSerialization clangSupport clangTooling clangToolingASTDiff clangToolingCore clangToolingInclusions
+CLANG_LIB_NAMES = clangAnalysis clangAPINotes clangAST clangASTMatchers clangBasic clangCodeGen clangCrossTU clangDriver clangDynamicASTMatchers clangEdit clangExtractAPI clangFormat clangFrontend clangFrontendTool clangHandleCXX clangHandleLLVM clangIndex clangInstallAPI clangLex clangParse clangRewrite clangRewriteFrontend clangSema clangSerialization clangSupport clangTooling clangToolingASTDiff clangToolingCore clangToolingInclusions
 CLANG_LIBS = $(START_GROUP) $(addprefix -l,$(CLANG_LIB_NAMES)) $(END_GROUP) -lstdc++
 
 # Libraries that should be linked in for the statically linked LLD.
@@ -238,7 +238,7 @@ gen-device-renesas: build/gen-device-svd
 	GO111MODULE=off $(GO) fmt ./src/device/renesas
 
 $(LLVM_PROJECTDIR)/llvm:
-	git clone -b tinygo_xtensa_release_18.1.2 --depth=1 https://github.com/tinygo-org/llvm-project $(LLVM_PROJECTDIR)
+	git clone -b xtensa_release_19.1.2 --depth=1 https://github.com/espressif/llvm-project $(LLVM_PROJECTDIR)
 llvm-source: $(LLVM_PROJECTDIR)/llvm ## Get LLVM sources
 
 # Configure LLVM.
@@ -745,6 +745,8 @@ endif
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=tiny2350            examples/blinky1
 	@$(MD5SUM) test.hex
+	$(TINYGO) build -size short -o test.hex -target=waveshare-rp2040-tiny examples/echo
+	@$(MD5SUM) test.hex
 	# test pwm
 	$(TINYGO) build -size short -o test.hex -target=itsybitsy-m0        examples/pwm
 	@$(MD5SUM) test.hex
@@ -826,6 +828,8 @@ endif
 ifneq ($(XTENSA), 0)
 	$(TINYGO) build -size short -o test.bin -target=esp32-mini32      	examples/blinky1
 	@$(MD5SUM) test.bin
+	$(TINYGO) build -size short -o test.bin -target=esp32c3-supermini   examples/blinky1
+	@$(MD5SUM) test.bin
 	$(TINYGO) build -size short -o test.bin -target=nodemcu             examples/blinky1
 	@$(MD5SUM) test.bin
 	$(TINYGO) build -size short -o test.bin -target m5stack-core2       examples/machinetest
@@ -859,6 +863,10 @@ endif
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=tkey                examples/blinky1
 	@$(MD5SUM) test.hex
+	$(TINYGO) build -size short -o test.hex -target=elecrow-rp2040      examples/blinky1
+	@$(MD5SUM) test.hex
+	$(TINYGO) build -size short -o test.hex -target=elecrow-rp2350      examples/blinky1
+	@$(MD5SUM) test.hex
 ifneq ($(WASM), 0)
 	$(TINYGO) build -size short -o wasm.wasm -target=wasm               examples/wasm/export
 	$(TINYGO) build -size short -o wasm.wasm -target=wasm               examples/wasm/main

builder/cc1as.cpp

@@ -145,6 +145,7 @@ bool AssemblerInvocation::CreateFromArgs(AssemblerInvocation &Opts,
   }
 
   Opts.RelaxELFRelocations = !Args.hasArg(OPT_mrelax_relocations_no);
+  Opts.SSE2AVX = Args.hasArg(OPT_msse2avx);
   if (auto *DwarfFormatArg = Args.getLastArg(OPT_gdwarf64, OPT_gdwarf32))
     Opts.Dwarf64 = DwarfFormatArg->getOption().matches(OPT_gdwarf64);
   Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 2, Diags);
@@ -234,6 +235,7 @@ bool AssemblerInvocation::CreateFromArgs(AssemblerInvocation &Opts,
 
   Opts.EmitCompactUnwindNonCanonical =
       Args.hasArg(OPT_femit_compact_unwind_non_canonical);
+  Opts.Crel = Args.hasArg(OPT_crel);
 
   Opts.AsSecureLogFile = Args.getLastArgValue(OPT_as_secure_log_file);
 
@@ -287,8 +289,14 @@ static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
   assert(MRI && "Unable to create target register info!");
 
   MCTargetOptions MCOptions;
+  MCOptions.MCRelaxAll = Opts.RelaxAll;
   MCOptions.EmitDwarfUnwind = Opts.EmitDwarfUnwind;
   MCOptions.EmitCompactUnwindNonCanonical = Opts.EmitCompactUnwindNonCanonical;
+  MCOptions.MCSaveTempLabels = Opts.SaveTemporaryLabels;
+  MCOptions.Crel = Opts.Crel;
+  MCOptions.X86RelaxRelocations = Opts.RelaxELFRelocations;
+  MCOptions.X86Sse2Avx = Opts.SSE2AVX;
+  MCOptions.CompressDebugSections = Opts.CompressDebugSections;
   MCOptions.AsSecureLogFile = Opts.AsSecureLogFile;
 
   std::unique_ptr<MCAsmInfo> MAI(
@@ -297,9 +305,7 @@ static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
 
   // Ensure MCAsmInfo initialization occurs before any use, otherwise sections
   // may be created with a combination of default and explicit settings.
-  MAI->setCompressDebugSections(Opts.CompressDebugSections);
 
-  MAI->setRelaxELFRelocations(Opts.RelaxELFRelocations);
 
   bool IsBinary = Opts.OutputType == AssemblerInvocation::FT_Obj;
   if (Opts.OutputPath.empty())
@@ -343,8 +349,6 @@ static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
     MOFI->setDarwinTargetVariantSDKVersion(Opts.DarwinTargetVariantSDKVersion);
   Ctx.setObjectFileInfo(MOFI.get());
 
-  if (Opts.SaveTemporaryLabels)
-    Ctx.setAllowTemporaryLabels(false);
   if (Opts.GenDwarfForAssembly)
     Ctx.setGenDwarfForAssembly(true);
   if (!Opts.DwarfDebugFlags.empty())
@@ -381,6 +385,9 @@ static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
   MCOptions.MCNoWarn = Opts.NoWarn;
   MCOptions.MCFatalWarnings = Opts.FatalWarnings;
   MCOptions.MCNoTypeCheck = Opts.NoTypeCheck;
+  MCOptions.ShowMCInst = Opts.ShowInst;
+  MCOptions.AsmVerbose = true;
+  MCOptions.MCUseDwarfDirectory = MCTargetOptions::EnableDwarfDirectory;
   MCOptions.ABIName = Opts.TargetABI;
 
   // FIXME: There is a bit of code duplication with addPassesToEmitFile.
@@ -395,10 +402,8 @@ static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
         TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions));
 
     auto FOut = std::make_unique<formatted_raw_ostream>(*Out);
-    Str.reset(TheTarget->createAsmStreamer(
-        Ctx, std::move(FOut), /*asmverbose*/ true,
-        /*useDwarfDirectory*/ true, IP, std::move(CE), std::move(MAB),
-        Opts.ShowInst));
+    Str.reset(TheTarget->createAsmStreamer(Ctx, std::move(FOut), IP,
+                                           std::move(CE), std::move(MAB)));
   } else if (Opts.OutputType == AssemblerInvocation::FT_Null) {
     Str.reset(createNullStreamer(Ctx));
   } else {
@@ -421,9 +426,7 @@ static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
 
     Triple T(Opts.Triple);
     Str.reset(TheTarget->createMCObjectStreamer(
-        T, Ctx, std::move(MAB), std::move(OW), std::move(CE), *STI,
-        Opts.RelaxAll, Opts.IncrementalLinkerCompatible,
-        /*DWARFMustBeAtTheEnd*/ true));
+        T, Ctx, std::move(MAB), std::move(OW), std::move(CE), *STI));
     Str.get()->initSections(Opts.NoExecStack, *STI);
   }
 
@@ -436,9 +439,6 @@ static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
     Str.get()->emitZeros(1);
   }
 
-  // Assembly to object compilation should leverage assembly info.
-  Str->setUseAssemblerInfoForParsing(true);
-
   bool Failed = false;
 
   std::unique_ptr<MCAsmParser> Parser(

builder/cc1as.h

@@ -38,10 +38,17 @@ struct AssemblerInvocation {
   /// @{
 
   std::vector<std::string> IncludePaths;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned NoInitialTextSection : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned SaveTemporaryLabels : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned GenDwarfForAssembly : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned RelaxELFRelocations : 1;
+  LLVM_PREFERRED_TYPE(bool)
+  unsigned SSE2AVX : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned Dwarf64 : 1;
   unsigned DwarfVersion;
   std::string DwarfDebugFlags;
@@ -66,7 +73,9 @@ struct AssemblerInvocation {
     FT_Obj   ///< Object file output.
   };
   FileType OutputType;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned ShowHelp : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned ShowVersion : 1;
 
   /// @}
@@ -74,28 +83,41 @@ struct AssemblerInvocation {
   /// @{
 
   unsigned OutputAsmVariant;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned ShowEncoding : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned ShowInst : 1;
 
   /// @}
   /// @name Assembler Options
   /// @{
 
+  LLVM_PREFERRED_TYPE(bool)
   unsigned RelaxAll : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned NoExecStack : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned FatalWarnings : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned NoWarn : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned NoTypeCheck : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned IncrementalLinkerCompatible : 1;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned EmbedBitcode : 1;
 
   /// Whether to emit DWARF unwind info.
   EmitDwarfUnwindType EmitDwarfUnwind;
 
   // Whether to emit compact-unwind for non-canonical entries.
-  // Note: maybe overridden by other constraints.
+  // Note: maybe overriden by other constraints.
+  LLVM_PREFERRED_TYPE(bool)
   unsigned EmitCompactUnwindNonCanonical : 1;
 
+  LLVM_PREFERRED_TYPE(bool)
+  unsigned Crel : 1;
+
   /// The name of the relocation model to use.
   std::string RelocationModel;
 
@@ -126,6 +148,7 @@ public:
     ShowInst = 0;
     ShowEncoding = 0;
     RelaxAll = 0;
+    SSE2AVX = 0;
     NoExecStack = 0;
     FatalWarnings = 0;
     NoWarn = 0;
@@ -136,6 +159,7 @@ public:
     EmbedBitcode = 0;
     EmitDwarfUnwind = EmitDwarfUnwindType::Default;
     EmitCompactUnwindNonCanonical = false;
+    Crel = false;
   }
 
   static bool CreateFromArgs(AssemblerInvocation &Res,

builder/musl.go

@@ -113,6 +113,7 @@ var libMusl = Library{
 	librarySources: func(target string) ([]string, error) {
 		arch := compileopts.MuslArchitecture(target)
 		globs := []string{
+			"conf/*.c",
 			"env/*.c",
 			"errno/*.c",
 			"exit/*.c",

builder/sizes.go

@@ -490,9 +490,9 @@ func loadProgramSize(path string, packagePathMap map[string]string) (*programSiz
 				continue
 			}
 			if section.Type == elf.SHT_NOBITS {
-				if section.Name == ".stack" {
+				if section.Name == ".stack" || section.Name == ".stack1" {
 					// TinyGo emits stack sections on microcontroller using the
-					// ".stack" name.
+					// ".stack" (or ".stack1") name.
 					// This is a bit ugly, but I don't think there is a way to
 					// mark the stack section in a linker script.
 					sections = append(sections, memorySection{

builder/sizes_test.go

@@ -42,9 +42,9 @@ func TestBinarySize(t *testing.T) {
 	// This is a small number of very diverse targets that we want to test.
 	tests := []sizeTest{
 		// microcontrollers
-		{"hifive1b", "examples/echo", 4600, 280, 0, 2268},
+		{"hifive1b", "examples/echo", 4560, 280, 0, 2268},
 		{"microbit", "examples/serial", 2908, 388, 8, 2272},
-		{"wioterminal", "examples/pininterrupt", 6140, 1484, 116, 6824},
+		{"wioterminal", "examples/pininterrupt", 7293, 1487, 116, 6912},
 
 		// TODO: also check wasm. Right now this is difficult, because
 		// wasm binaries are run through wasm-opt and therefore the

builder/tools.go

@@ -114,8 +114,8 @@ func parseLLDErrors(text string) error {
 
 		// Check for undefined symbols.
 		// This can happen in some cases like with CGo and //go:linkname tricker.
-		if matches := regexp.MustCompile(`^ld.lld: error: undefined symbol: (.*)\n`).FindStringSubmatch(message); matches != nil {
-			symbolName := matches[1]
+		if matches := regexp.MustCompile(`^ld.lld(-[0-9]+)?: error: undefined symbol: (.*)\n`).FindStringSubmatch(message); matches != nil {
+			symbolName := matches[2]
 			for _, line := range strings.Split(message, "\n") {
 				matches := regexp.MustCompile(`referenced by .* \(((.*):([0-9]+))\)`).FindStringSubmatch(line)
 				if matches != nil {
@@ -134,9 +134,9 @@ func parseLLDErrors(text string) error {
 		}
 
 		// Check for flash/RAM overflow.
-		if matches := regexp.MustCompile(`^ld.lld: error: section '(.*?)' will not fit in region '(.*?)': overflowed by ([0-9]+) bytes$`).FindStringSubmatch(message); matches != nil {
-			region := matches[2]
-			n, err := strconv.ParseUint(matches[3], 10, 64)
+		if matches := regexp.MustCompile(`^ld.lld(-[0-9]+)?: error: section '(.*?)' will not fit in region '(.*?)': overflowed by ([0-9]+) bytes$`).FindStringSubmatch(message); matches != nil {
+			region := matches[3]
+			n, err := strconv.ParseUint(matches[4], 10, 64)
 			if err != nil {
 				// Should not happen at all (unless it overflows an uint64 for some reason).
 				continue

cgo/libclang_config_llvm18.go

@@ -1,4 +1,4 @@
-//go:build !byollvm && !llvm15 && !llvm16 && !llvm17
+//go:build !byollvm && llvm18
 
 package cgo
 

cgo/libclang_config_llvm19.go

@@ -0,0 +1,15 @@
+//go:build !byollvm && !llvm15 && !llvm16 && !llvm17 && !llvm18
+
+package cgo
+
+/*
+#cgo linux        CFLAGS:  -I/usr/include/llvm-19 -I/usr/include/llvm-c-19 -I/usr/lib/llvm-19/include
+#cgo darwin,amd64 CFLAGS:  -I/usr/local/opt/llvm@19/include
+#cgo darwin,arm64 CFLAGS:  -I/opt/homebrew/opt/llvm@19/include
+#cgo freebsd      CFLAGS:  -I/usr/local/llvm19/include
+#cgo linux        LDFLAGS: -L/usr/lib/llvm-19/lib -lclang
+#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/llvm@19/lib -lclang
+#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/llvm@19/lib -lclang
+#cgo freebsd      LDFLAGS: -L/usr/local/llvm19/lib -lclang
+*/
+import "C"

compileopts/config.go

@@ -99,6 +99,11 @@ func (c *Config) BuildTags() []string {
 		"math_big_pure_go",                           // to get math/big to work
 		"gc." + c.GC(), "scheduler." + c.Scheduler(), // used inside the runtime package
 		"serial." + c.Serial()}...) // used inside the machine package
+	switch c.Scheduler() {
+	case "threads", "cores":
+	default:
+		tags = append(tags, "tinygo.unicore")
+	}
 	for i := 1; i <= c.GoMinorVersion; i++ {
 		tags = append(tags, fmt.Sprintf("go1.%d", i))
 	}

compileopts/options.go

@@ -10,7 +10,7 @@ import (
 var (
 	validBuildModeOptions     = []string{"default", "c-shared"}
 	validGCOptions            = []string{"none", "leaking", "conservative", "custom", "precise"}
-	validSchedulerOptions     = []string{"none", "tasks", "asyncify"}
+	validSchedulerOptions     = []string{"none", "tasks", "asyncify", "threads", "cores"}
 	validSerialOptions        = []string{"none", "uart", "usb", "rtt"}
 	validPrintSizeOptions     = []string{"none", "short", "full", "html"}
 	validPanicStrategyOptions = []string{"print", "trap"}

compileopts/options_test.go

@@ -10,7 +10,7 @@ import (
 func TestVerifyOptions(t *testing.T) {
 
 	expectedGCError := errors.New(`invalid gc option 'incorrect': valid values are none, leaking, conservative, custom, precise`)
-	expectedSchedulerError := errors.New(`invalid scheduler option 'incorrect': valid values are none, tasks, asyncify`)
+	expectedSchedulerError := errors.New(`invalid scheduler option 'incorrect': valid values are none, tasks, asyncify, threads`)
 	expectedPrintSizeError := errors.New(`invalid size option 'incorrect': valid values are none, short, full, html`)
 	expectedPanicStrategyError := errors.New(`invalid panic option 'incorrect': valid values are print, trap`)
 

compileopts/target.go

@@ -248,7 +248,6 @@ func defaultTarget(options *Options) (*TargetSpec, error) {
 		GOARCH:           options.GOARCH,
 		BuildTags:        []string{options.GOOS, options.GOARCH},
 		GC:               "precise",
-		Scheduler:        "tasks",
 		Linker:           "cc",
 		DefaultStackSize: 1024 * 64, // 64kB
 		GDB:              []string{"gdb"},
@@ -328,14 +327,14 @@ func defaultTarget(options *Options) (*TargetSpec, error) {
 		spec.CPU = "generic"
 		llvmarch = "aarch64"
 		if options.GOOS == "darwin" {
-			spec.Features = "+fp-armv8,+neon"
+			spec.Features = "+ete,+fp-armv8,+neon,+trbe,+v8a"
 			// Looks like Apple prefers to call this architecture ARM64
 			// instead of AArch64.
 			llvmarch = "arm64"
 		} else if options.GOOS == "windows" {
-			spec.Features = "+fp-armv8,+neon,-fmv"
+			spec.Features = "+ete,+fp-armv8,+neon,+trbe,+v8a,-fmv"
 		} else { // linux
-			spec.Features = "+fp-armv8,+neon,-fmv,-outline-atomics"
+			spec.Features = "+ete,+fp-armv8,+neon,+trbe,+v8a,-fmv,-outline-atomics"
 		}
 	case "mips", "mipsle":
 		spec.CPU = "mips32"
@@ -358,11 +357,13 @@ func defaultTarget(options *Options) (*TargetSpec, error) {
 	case "wasm":
 		llvmarch = "wasm32"
 		spec.CPU = "generic"
-		spec.Features = "+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext"
+		spec.Features = "+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types"
 		spec.BuildTags = append(spec.BuildTags, "tinygo.wasm")
 		spec.CFlags = append(spec.CFlags,
 			"-mbulk-memory",
 			"-mnontrapping-fptoint",
+			"-mno-multivalue",
+			"-mno-reference-types",
 			"-msign-ext",
 		)
 	default:
@@ -379,6 +380,7 @@ func defaultTarget(options *Options) (*TargetSpec, error) {
 			platformVersion = "11.0.0" // first macosx platform with arm64 support
 		}
 		llvmvendor = "apple"
+		spec.Scheduler = "tasks"
 		spec.Linker = "ld.lld"
 		spec.Libc = "darwin-libSystem"
 		// Use macosx* instead of darwin, otherwise darwin/arm64 will refer to
@@ -396,6 +398,7 @@ func defaultTarget(options *Options) (*TargetSpec, error) {
 			"src/runtime/runtime_unix.c",
 			"src/runtime/signal.c")
 	case "linux":
+		spec.Scheduler = "threads"
 		spec.Linker = "ld.lld"
 		spec.RTLib = "compiler-rt"
 		spec.Libc = "musl"
@@ -416,9 +419,11 @@ func defaultTarget(options *Options) (*TargetSpec, error) {
 		}
 		spec.ExtraFiles = append(spec.ExtraFiles,
 			"src/internal/futex/futex_linux.c",
+			"src/internal/task/task_threads.c",
 			"src/runtime/runtime_unix.c",
 			"src/runtime/signal.c")
 	case "windows":
+		spec.Scheduler = "tasks"
 		spec.Linker = "ld.lld"
 		spec.Libc = "mingw-w64"
 		// Note: using a medium code model, low image base and no ASLR
@@ -496,6 +501,7 @@ func defaultTarget(options *Options) (*TargetSpec, error) {
 		}
 		spec.ExtraFiles = append(spec.ExtraFiles, "src/runtime/asm_"+asmGoarch+suffix+".S")
 		spec.ExtraFiles = append(spec.ExtraFiles, "src/internal/task/task_stack_"+asmGoarch+suffix+".S")
+		spec.ExtraFiles = append(spec.ExtraFiles, "src/internal/task/task_cores.c")
 	}
 
 	// Configure the emulator.

compiler/defer.go

@@ -161,7 +161,7 @@ str x2, [x1, #8]
 mov x0, #0
 1:
 `
-		constraints = "={x0},{x1},~{x1},~{x2},~{x3},~{x4},~{x5},~{x6},~{x7},~{x8},~{x9},~{x10},~{x11},~{x12},~{x13},~{x14},~{x15},~{x16},~{x17},~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x27},~{x28},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{q16},~{q17},~{q18},~{q19},~{q20},~{q21},~{q22},~{q23},~{q24},~{q25},~{q26},~{q27},~{q28},~{q29},~{q30},~{nzcv},~{ffr},~{vg},~{memory}"
+		constraints = "={x0},{x1},~{x1},~{x2},~{x3},~{x4},~{x5},~{x6},~{x7},~{x8},~{x9},~{x10},~{x11},~{x12},~{x13},~{x14},~{x15},~{x16},~{x17},~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x27},~{x28},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{q16},~{q17},~{q18},~{q19},~{q20},~{q21},~{q22},~{q23},~{q24},~{q25},~{q26},~{q27},~{q28},~{q29},~{q30},~{nzcv},~{ffr},~{memory}"
 		if b.GOOS != "darwin" && b.GOOS != "windows" {
 			// These registers cause the following warning when compiling for
 			// MacOS and Windows:

compiler/symbol.go

@@ -208,6 +208,8 @@ func (c *compilerContext) getFunction(fn *ssa.Function) (llvm.Type, llvm.Value)
 			// > circumstances, and should not be exposed to source languages.
 			llvmutil.AppendToGlobal(c.mod, "llvm.compiler.used", llvmFn)
 		}
+	case "tinygo_exitTask", "tinygo_schedulerUnlock":
+		llvmutil.AppendToGlobal(c.mod, "llvm.used", llvmFn)
 	}
 
 	// External/exported functions may not retain pointer values.

compiler/testdata/basic.ll

@@ -206,7 +206,7 @@ entry:
   ret void
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
 attributes #3 = { nounwind }

compiler/testdata/channel.ll

@@ -82,11 +82,11 @@ entry:
   store i32 1, ptr %select.send.value, align 4
   call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %select.states.alloca)
   store ptr %ch1, ptr %select.states.alloca, align 4
-  %select.states.alloca.repack1 = getelementptr inbounds %runtime.chanSelectState, ptr %select.states.alloca, i32 0, i32 1
+  %select.states.alloca.repack1 = getelementptr inbounds i8, ptr %select.states.alloca, i32 4
   store ptr %select.send.value, ptr %select.states.alloca.repack1, align 4
-  %0 = getelementptr inbounds [2 x %runtime.chanSelectState], ptr %select.states.alloca, i32 0, i32 1
+  %0 = getelementptr inbounds i8, ptr %select.states.alloca, i32 8
   store ptr %ch2, ptr %0, align 4
-  %.repack3 = getelementptr inbounds [2 x %runtime.chanSelectState], ptr %select.states.alloca, i32 0, i32 1, i32 1
+  %.repack3 = getelementptr inbounds i8, ptr %select.states.alloca, i32 12
   store ptr null, ptr %.repack3, align 4
   %select.result = call { i32, i1 } @runtime.chanSelect(ptr undef, ptr nonnull %select.states.alloca, i32 2, i32 2, ptr null, i32 0, i32 0, ptr undef) #4
   call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %select.states.alloca)
@@ -107,8 +107,8 @@ select.body:                                      ; preds = %select.next
 
 declare { i32, i1 } @runtime.chanSelect(ptr, ptr, i32, i32, ptr, i32, i32, ptr) #1
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
 attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 attributes #4 = { nounwind }

compiler/testdata/defer-cortex-m-qemu.ll

@@ -5,7 +5,6 @@ target triple = "thumbv7m-unknown-unknown-eabi"
 
 %runtime.deferFrame = type { ptr, ptr, [0 x ptr], ptr, i8, %runtime._interface }
 %runtime._interface = type { ptr, ptr }
-%runtime._defer = type { i32, ptr }
 
 ; Function Attrs: allockind("alloc,zeroed") allocsize(0)
 declare noalias nonnull ptr @runtime.alloc(i32, ptr, ptr) #0
@@ -28,7 +27,7 @@ entry:
   %0 = call ptr @llvm.stacksave.p0()
   call void @runtime.setupDeferFrame(ptr nonnull %deferframe.buf, ptr %0, ptr undef) #4
   store i32 0, ptr %defer.alloca, align 4
-  %defer.alloca.repack15 = getelementptr inbounds { i32, ptr }, ptr %defer.alloca, i32 0, i32 1
+  %defer.alloca.repack15 = getelementptr inbounds i8, ptr %defer.alloca, i32 4
   store ptr null, ptr %defer.alloca.repack15, align 4
   store ptr %defer.alloca, ptr %deferPtr, align 4
   %setjmp = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #5
@@ -52,7 +51,7 @@ rundefers.loophead:                               ; preds = %3, %rundefers.block
   br i1 %stackIsNil, label %rundefers.end, label %rundefers.loop
 
 rundefers.loop:                                   ; preds = %rundefers.loophead
-  %stack.next.gep = getelementptr inbounds %runtime._defer, ptr %2, i32 0, i32 1
+  %stack.next.gep = getelementptr inbounds i8, ptr %2, i32 4
   %stack.next = load ptr, ptr %stack.next.gep, align 4
   store ptr %stack.next, ptr %deferPtr, align 4
   %callback = load i32, ptr %2, align 4
@@ -88,7 +87,7 @@ rundefers.loophead6:                              ; preds = %5, %lpad
   br i1 %stackIsNil7, label %rundefers.end3, label %rundefers.loop5
 
 rundefers.loop5:                                  ; preds = %rundefers.loophead6
-  %stack.next.gep8 = getelementptr inbounds %runtime._defer, ptr %4, i32 0, i32 1
+  %stack.next.gep8 = getelementptr inbounds i8, ptr %4, i32 4
   %stack.next9 = load ptr, ptr %stack.next.gep8, align 4
   store ptr %stack.next9, ptr %deferPtr, align 4
   %callback11 = load i32, ptr %4, align 4
@@ -145,11 +144,11 @@ entry:
   %0 = call ptr @llvm.stacksave.p0()
   call void @runtime.setupDeferFrame(ptr nonnull %deferframe.buf, ptr %0, ptr undef) #4
   store i32 0, ptr %defer.alloca, align 4
-  %defer.alloca.repack22 = getelementptr inbounds { i32, ptr }, ptr %defer.alloca, i32 0, i32 1
+  %defer.alloca.repack22 = getelementptr inbounds i8, ptr %defer.alloca, i32 4
   store ptr null, ptr %defer.alloca.repack22, align 4
   store ptr %defer.alloca, ptr %deferPtr, align 4
   store i32 1, ptr %defer.alloca2, align 4
-  %defer.alloca2.repack23 = getelementptr inbounds { i32, ptr }, ptr %defer.alloca2, i32 0, i32 1
+  %defer.alloca2.repack23 = getelementptr inbounds i8, ptr %defer.alloca2, i32 4
   store ptr %defer.alloca, ptr %defer.alloca2.repack23, align 4
   store ptr %defer.alloca2, ptr %deferPtr, align 4
   %setjmp = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #5
@@ -173,7 +172,7 @@ rundefers.loophead:                               ; preds = %4, %3, %rundefers.b
   br i1 %stackIsNil, label %rundefers.end, label %rundefers.loop
 
 rundefers.loop:                                   ; preds = %rundefers.loophead
-  %stack.next.gep = getelementptr inbounds %runtime._defer, ptr %2, i32 0, i32 1
+  %stack.next.gep = getelementptr inbounds i8, ptr %2, i32 4
   %stack.next = load ptr, ptr %stack.next.gep, align 4
   store ptr %stack.next, ptr %deferPtr, align 4
   %callback = load i32, ptr %2, align 4
@@ -219,7 +218,7 @@ rundefers.loophead10:                             ; preds = %7, %6, %lpad
   br i1 %stackIsNil11, label %rundefers.end7, label %rundefers.loop9
 
 rundefers.loop9:                                  ; preds = %rundefers.loophead10
-  %stack.next.gep12 = getelementptr inbounds %runtime._defer, ptr %5, i32 0, i32 1
+  %stack.next.gep12 = getelementptr inbounds i8, ptr %5, i32 4
   %stack.next13 = load ptr, ptr %stack.next.gep12, align 4
   store ptr %stack.next13, ptr %deferPtr, align 4
   %callback15 = load i32, ptr %5, align 4
@@ -271,9 +270,9 @@ entry:
   ret void
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
-attributes #1 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
-attributes #2 = { "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
+attributes #1 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
+attributes #2 = { "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
 attributes #3 = { nocallback nofree nosync nounwind willreturn }
 attributes #4 = { nounwind }
 attributes #5 = { nounwind returns_twice }

compiler/testdata/float.ll

@@ -93,6 +93,6 @@ entry:
   ret i8 %0
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }

compiler/testdata/func.ll

@@ -44,7 +44,7 @@ entry:
   ret void
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
 attributes #3 = { nounwind }

compiler/testdata/gc.ll

@@ -105,18 +105,18 @@ entry:
   %makeslice = call align 1 dereferenceable(5) ptr @runtime.alloc(i32 5, ptr nonnull inttoptr (i32 3 to ptr), ptr undef) #3
   call void @runtime.trackPointer(ptr nonnull %makeslice, ptr nonnull %stackalloc, ptr undef) #3
   store ptr %makeslice, ptr @main.slice1, align 4
-  store i32 5, ptr getelementptr inbounds ({ ptr, i32, i32 }, ptr @main.slice1, i32 0, i32 1), align 4
-  store i32 5, ptr getelementptr inbounds ({ ptr, i32, i32 }, ptr @main.slice1, i32 0, i32 2), align 4
+  store i32 5, ptr getelementptr inbounds (i8, ptr @main.slice1, i32 4), align 4
+  store i32 5, ptr getelementptr inbounds (i8, ptr @main.slice1, i32 8), align 4
   %makeslice1 = call align 4 dereferenceable(20) ptr @runtime.alloc(i32 20, ptr nonnull inttoptr (i32 67 to ptr), ptr undef) #3
   call void @runtime.trackPointer(ptr nonnull %makeslice1, ptr nonnull %stackalloc, ptr undef) #3
   store ptr %makeslice1, ptr @main.slice2, align 4
-  store i32 5, ptr getelementptr inbounds ({ ptr, i32, i32 }, ptr @main.slice2, i32 0, i32 1), align 4
-  store i32 5, ptr getelementptr inbounds ({ ptr, i32, i32 }, ptr @main.slice2, i32 0, i32 2), align 4
+  store i32 5, ptr getelementptr inbounds (i8, ptr @main.slice2, i32 4), align 4
+  store i32 5, ptr getelementptr inbounds (i8, ptr @main.slice2, i32 8), align 4
   %makeslice3 = call align 4 dereferenceable(60) ptr @runtime.alloc(i32 60, ptr nonnull inttoptr (i32 71 to ptr), ptr undef) #3
   call void @runtime.trackPointer(ptr nonnull %makeslice3, ptr nonnull %stackalloc, ptr undef) #3
   store ptr %makeslice3, ptr @main.slice3, align 4
-  store i32 5, ptr getelementptr inbounds ({ ptr, i32, i32 }, ptr @main.slice3, i32 0, i32 1), align 4
-  store i32 5, ptr getelementptr inbounds ({ ptr, i32, i32 }, ptr @main.slice3, i32 0, i32 2), align 4
+  store i32 5, ptr getelementptr inbounds (i8, ptr @main.slice3, i32 4), align 4
+  store i32 5, ptr getelementptr inbounds (i8, ptr @main.slice3, i32 8), align 4
   ret void
 }
 
@@ -127,7 +127,7 @@ entry:
   %0 = call align 8 dereferenceable(16) ptr @runtime.alloc(i32 16, ptr null, ptr undef) #3
   call void @runtime.trackPointer(ptr nonnull %0, ptr nonnull %stackalloc, ptr undef) #3
   store double %v.r, ptr %0, align 8
-  %.repack1 = getelementptr inbounds { double, double }, ptr %0, i32 0, i32 1
+  %.repack1 = getelementptr inbounds i8, ptr %0, i32 8
   store double %v.i, ptr %.repack1, align 8
   %1 = insertvalue %runtime._interface { ptr @"reflect/types.type:basic:complex128", ptr undef }, ptr %0, 1
   call void @runtime.trackPointer(ptr nonnull @"reflect/types.type:basic:complex128", ptr nonnull %stackalloc, ptr undef) #3
@@ -135,7 +135,7 @@ entry:
   ret %runtime._interface %1
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
 attributes #3 = { nounwind }

compiler/testdata/go1.20.ll

@@ -36,7 +36,7 @@ entry:
   br i1 %4, label %unsafe.String.throw, label %unsafe.String.next
 
 unsafe.String.next:                               ; preds = %entry
-  %5 = zext i16 %len to i32
+  %5 = zext nneg i16 %len to i32
   %6 = insertvalue %runtime._string undef, ptr %ptr, 0
   %7 = insertvalue %runtime._string %6, i32 %5, 1
   call void @runtime.trackPointer(ptr %ptr, ptr nonnull %stackalloc, ptr undef) #3
@@ -57,7 +57,7 @@ entry:
   ret ptr %s.data
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
 attributes #3 = { nounwind }

compiler/testdata/go1.21.ll

@@ -171,9 +171,9 @@ declare i32 @llvm.smax.i32(i32, i32) #4
 ; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
 declare i32 @llvm.umax.i32(i32, i32) #4
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
 attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
 attributes #4 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
 attributes #5 = { nounwind }

compiler/testdata/goroutine-cortex-m-qemu-tasks.ll

@@ -65,7 +65,7 @@ entry:
   store i32 3, ptr %n, align 4
   %0 = call align 4 dereferenceable(8) ptr @runtime.alloc(i32 8, ptr null, ptr undef) #9
   store i32 5, ptr %0, align 4
-  %1 = getelementptr inbounds { i32, ptr }, ptr %0, i32 0, i32 1
+  %1 = getelementptr inbounds i8, ptr %0, i32 4
   store ptr %n, ptr %1, align 4
   %stacksize = call i32 @"internal/task.getGoroutineStackSize"(i32 ptrtoint (ptr @"main.closureFunctionGoroutine$1$gowrapper" to i32), ptr undef) #9
   call void @"internal/task.start"(i32 ptrtoint (ptr @"main.closureFunctionGoroutine$1$gowrapper" to i32), ptr nonnull %0, i32 %stacksize, ptr undef) #9
@@ -87,7 +87,7 @@ entry:
 define linkonce_odr void @"main.closureFunctionGoroutine$1$gowrapper"(ptr %0) unnamed_addr #5 {
 entry:
   %1 = load i32, ptr %0, align 4
-  %2 = getelementptr inbounds { i32, ptr }, ptr %0, i32 0, i32 1
+  %2 = getelementptr inbounds i8, ptr %0, i32 4
   %3 = load ptr, ptr %2, align 4
   call void @"main.closureFunctionGoroutine$1"(i32 %1, ptr %3)
   ret void
@@ -104,9 +104,9 @@ define hidden void @main.funcGoroutine(ptr %fn.context, ptr %fn.funcptr, ptr %co
 entry:
   %0 = call align 4 dereferenceable(12) ptr @runtime.alloc(i32 12, ptr null, ptr undef) #9
   store i32 5, ptr %0, align 4
-  %1 = getelementptr inbounds { i32, ptr, ptr }, ptr %0, i32 0, i32 1
+  %1 = getelementptr inbounds i8, ptr %0, i32 4
   store ptr %fn.context, ptr %1, align 4
-  %2 = getelementptr inbounds { i32, ptr, ptr }, ptr %0, i32 0, i32 2
+  %2 = getelementptr inbounds i8, ptr %0, i32 8
   store ptr %fn.funcptr, ptr %2, align 4
   %stacksize = call i32 @"internal/task.getGoroutineStackSize"(i32 ptrtoint (ptr @main.funcGoroutine.gowrapper to i32), ptr undef) #9
   call void @"internal/task.start"(i32 ptrtoint (ptr @main.funcGoroutine.gowrapper to i32), ptr nonnull %0, i32 %stacksize, ptr undef) #9
@@ -117,9 +117,9 @@ entry:
 define linkonce_odr void @main.funcGoroutine.gowrapper(ptr %0) unnamed_addr #6 {
 entry:
   %1 = load i32, ptr %0, align 4
-  %2 = getelementptr inbounds { i32, ptr, ptr }, ptr %0, i32 0, i32 1
+  %2 = getelementptr inbounds i8, ptr %0, i32 4
   %3 = load ptr, ptr %2, align 4
-  %4 = getelementptr inbounds { i32, ptr, ptr }, ptr %0, i32 0, i32 2
+  %4 = getelementptr inbounds i8, ptr %0, i32 8
   %5 = load ptr, ptr %4, align 4
   call void %5(i32 %1, ptr %3) #9
   ret void
@@ -154,11 +154,11 @@ define hidden void @main.startInterfaceMethod(ptr %itf.typecode, ptr %itf.value,
 entry:
   %0 = call align 4 dereferenceable(16) ptr @runtime.alloc(i32 16, ptr null, ptr undef) #9
   store ptr %itf.value, ptr %0, align 4
-  %1 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 1
+  %1 = getelementptr inbounds i8, ptr %0, i32 4
   store ptr @"main$string", ptr %1, align 4
-  %2 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 2
+  %2 = getelementptr inbounds i8, ptr %0, i32 8
   store i32 4, ptr %2, align 4
-  %3 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 3
+  %3 = getelementptr inbounds i8, ptr %0, i32 12
   store ptr %itf.typecode, ptr %3, align 4
   %stacksize = call i32 @"internal/task.getGoroutineStackSize"(i32 ptrtoint (ptr @"interface:{Print:func:{basic:string}{}}.Print$invoke$gowrapper" to i32), ptr undef) #9
   call void @"internal/task.start"(i32 ptrtoint (ptr @"interface:{Print:func:{basic:string}{}}.Print$invoke$gowrapper" to i32), ptr nonnull %0, i32 %stacksize, ptr undef) #9
@@ -171,23 +171,23 @@ declare void @"interface:{Print:func:{basic:string}{}}.Print$invoke"(ptr, ptr, i
 define linkonce_odr void @"interface:{Print:func:{basic:string}{}}.Print$invoke$gowrapper"(ptr %0) unnamed_addr #8 {
 entry:
   %1 = load ptr, ptr %0, align 4
-  %2 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 1
+  %2 = getelementptr inbounds i8, ptr %0, i32 4
   %3 = load ptr, ptr %2, align 4
-  %4 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 2
+  %4 = getelementptr inbounds i8, ptr %0, i32 8
   %5 = load i32, ptr %4, align 4
-  %6 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 3
+  %6 = getelementptr inbounds i8, ptr %0, i32 12
   %7 = load ptr, ptr %6, align 4
   call void @"interface:{Print:func:{basic:string}{}}.Print$invoke"(ptr %1, ptr %3, i32 %5, ptr %7, ptr undef) #9
   ret void
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
-attributes #1 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
-attributes #2 = { "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
-attributes #3 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-gowrapper"="main.regularFunction" }
-attributes #4 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-gowrapper"="main.inlineFunctionGoroutine$1" }
-attributes #5 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-gowrapper"="main.closureFunctionGoroutine$1" }
-attributes #6 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-gowrapper" }
-attributes #7 = { "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-invoke"="reflect/methods.Print(string)" "tinygo-methods"="reflect/methods.Print(string)" }
-attributes #8 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-gowrapper"="interface:{Print:func:{basic:string}{}}.Print$invoke" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
+attributes #1 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
+attributes #2 = { "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
+attributes #3 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-gowrapper"="main.regularFunction" }
+attributes #4 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-gowrapper"="main.inlineFunctionGoroutine$1" }
+attributes #5 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-gowrapper"="main.closureFunctionGoroutine$1" }
+attributes #6 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-gowrapper" }
+attributes #7 = { "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-invoke"="reflect/methods.Print(string)" "tinygo-methods"="reflect/methods.Print(string)" }
+attributes #8 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" "tinygo-gowrapper"="interface:{Print:func:{basic:string}{}}.Print$invoke" }
 attributes #9 = { nounwind }

compiler/testdata/goroutine-wasm-asyncify.ll

@@ -72,7 +72,7 @@ entry:
   %0 = call align 4 dereferenceable(8) ptr @runtime.alloc(i32 8, ptr null, ptr undef) #9
   call void @runtime.trackPointer(ptr nonnull %0, ptr nonnull %stackalloc, ptr undef) #9
   store i32 5, ptr %0, align 4
-  %1 = getelementptr inbounds { i32, ptr }, ptr %0, i32 0, i32 1
+  %1 = getelementptr inbounds i8, ptr %0, i32 4
   store ptr %n, ptr %1, align 4
   call void @"internal/task.start"(i32 ptrtoint (ptr @"main.closureFunctionGoroutine$1$gowrapper" to i32), ptr nonnull %0, i32 65536, ptr undef) #9
   %2 = load i32, ptr %n, align 4
@@ -93,7 +93,7 @@ entry:
 define linkonce_odr void @"main.closureFunctionGoroutine$1$gowrapper"(ptr %0) unnamed_addr #5 {
 entry:
   %1 = load i32, ptr %0, align 4
-  %2 = getelementptr inbounds { i32, ptr }, ptr %0, i32 0, i32 1
+  %2 = getelementptr inbounds i8, ptr %0, i32 4
   %3 = load ptr, ptr %2, align 4
   call void @"main.closureFunctionGoroutine$1"(i32 %1, ptr %3)
   call void @runtime.deadlock(ptr undef) #9
@@ -113,9 +113,9 @@ entry:
   %0 = call align 4 dereferenceable(12) ptr @runtime.alloc(i32 12, ptr null, ptr undef) #9
   call void @runtime.trackPointer(ptr nonnull %0, ptr nonnull %stackalloc, ptr undef) #9
   store i32 5, ptr %0, align 4
-  %1 = getelementptr inbounds { i32, ptr, ptr }, ptr %0, i32 0, i32 1
+  %1 = getelementptr inbounds i8, ptr %0, i32 4
   store ptr %fn.context, ptr %1, align 4
-  %2 = getelementptr inbounds { i32, ptr, ptr }, ptr %0, i32 0, i32 2
+  %2 = getelementptr inbounds i8, ptr %0, i32 8
   store ptr %fn.funcptr, ptr %2, align 4
   call void @"internal/task.start"(i32 ptrtoint (ptr @main.funcGoroutine.gowrapper to i32), ptr nonnull %0, i32 65536, ptr undef) #9
   ret void
@@ -125,9 +125,9 @@ entry:
 define linkonce_odr void @main.funcGoroutine.gowrapper(ptr %0) unnamed_addr #6 {
 entry:
   %1 = load i32, ptr %0, align 4
-  %2 = getelementptr inbounds { i32, ptr, ptr }, ptr %0, i32 0, i32 1
+  %2 = getelementptr inbounds i8, ptr %0, i32 4
   %3 = load ptr, ptr %2, align 4
-  %4 = getelementptr inbounds { i32, ptr, ptr }, ptr %0, i32 0, i32 2
+  %4 = getelementptr inbounds i8, ptr %0, i32 8
   %5 = load ptr, ptr %4, align 4
   call void %5(i32 %1, ptr %3) #9
   call void @runtime.deadlock(ptr undef) #9
@@ -165,11 +165,11 @@ entry:
   %0 = call align 4 dereferenceable(16) ptr @runtime.alloc(i32 16, ptr null, ptr undef) #9
   call void @runtime.trackPointer(ptr nonnull %0, ptr nonnull %stackalloc, ptr undef) #9
   store ptr %itf.value, ptr %0, align 4
-  %1 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 1
+  %1 = getelementptr inbounds i8, ptr %0, i32 4
   store ptr @"main$string", ptr %1, align 4
-  %2 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 2
+  %2 = getelementptr inbounds i8, ptr %0, i32 8
   store i32 4, ptr %2, align 4
-  %3 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 3
+  %3 = getelementptr inbounds i8, ptr %0, i32 12
   store ptr %itf.typecode, ptr %3, align 4
   call void @"internal/task.start"(i32 ptrtoint (ptr @"interface:{Print:func:{basic:string}{}}.Print$invoke$gowrapper" to i32), ptr nonnull %0, i32 65536, ptr undef) #9
   ret void
@@ -181,24 +181,24 @@ declare void @"interface:{Print:func:{basic:string}{}}.Print$invoke"(ptr, ptr, i
 define linkonce_odr void @"interface:{Print:func:{basic:string}{}}.Print$invoke$gowrapper"(ptr %0) unnamed_addr #8 {
 entry:
   %1 = load ptr, ptr %0, align 4
-  %2 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 1
+  %2 = getelementptr inbounds i8, ptr %0, i32 4
   %3 = load ptr, ptr %2, align 4
-  %4 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 2
+  %4 = getelementptr inbounds i8, ptr %0, i32 8
   %5 = load i32, ptr %4, align 4
-  %6 = getelementptr inbounds { ptr, ptr, i32, ptr }, ptr %0, i32 0, i32 3
+  %6 = getelementptr inbounds i8, ptr %0, i32 12
   %7 = load ptr, ptr %6, align 4
   call void @"interface:{Print:func:{basic:string}{}}.Print$invoke"(ptr %1, ptr %3, i32 %5, ptr %7, ptr undef) #9
   call void @runtime.deadlock(ptr undef) #9
   unreachable
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #3 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-gowrapper"="main.regularFunction" }
-attributes #4 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-gowrapper"="main.inlineFunctionGoroutine$1" }
-attributes #5 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-gowrapper"="main.closureFunctionGoroutine$1" }
-attributes #6 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-gowrapper" }
-attributes #7 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-invoke"="reflect/methods.Print(string)" "tinygo-methods"="reflect/methods.Print(string)" }
-attributes #8 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-gowrapper"="interface:{Print:func:{basic:string}{}}.Print$invoke" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #3 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "tinygo-gowrapper"="main.regularFunction" }
+attributes #4 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "tinygo-gowrapper"="main.inlineFunctionGoroutine$1" }
+attributes #5 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "tinygo-gowrapper"="main.closureFunctionGoroutine$1" }
+attributes #6 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "tinygo-gowrapper" }
+attributes #7 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "tinygo-invoke"="reflect/methods.Print(string)" "tinygo-methods"="reflect/methods.Print(string)" }
+attributes #8 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "tinygo-gowrapper"="interface:{Print:func:{basic:string}{}}.Print$invoke" }
 attributes #9 = { nounwind }

compiler/testdata/interface.ll

@@ -130,11 +130,11 @@ entry:
 
 declare %runtime._string @"interface:{Error:func:{}{basic:string}}.Error$invoke"(ptr, ptr, ptr) #6
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #3 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-methods"="reflect/methods.Error() string" }
-attributes #4 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-methods"="reflect/methods.String() string" }
-attributes #5 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-invoke"="main.$methods.foo(int) uint8" "tinygo-methods"="reflect/methods.String() string; main.$methods.foo(int) uint8" }
-attributes #6 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-invoke"="reflect/methods.Error() string" "tinygo-methods"="reflect/methods.Error() string" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #3 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "tinygo-methods"="reflect/methods.Error() string" }
+attributes #4 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "tinygo-methods"="reflect/methods.String() string" }
+attributes #5 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "tinygo-invoke"="main.$methods.foo(int) uint8" "tinygo-methods"="reflect/methods.String() string; main.$methods.foo(int) uint8" }
+attributes #6 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "tinygo-invoke"="reflect/methods.Error() string" "tinygo-methods"="reflect/methods.Error() string" }
 attributes #7 = { nounwind }

compiler/testdata/pointer.ll

@@ -44,7 +44,7 @@ entry:
   ret ptr %x
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
 attributes #3 = { nounwind }

compiler/testdata/pragma.ll

@@ -93,13 +93,13 @@ entry:
   ret void
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #3 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "wasm-export-name"="extern_func" }
-attributes #4 = { inlinehint nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #5 = { noinline nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #6 = { noinline nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "wasm-export-name"="exportedFunctionInSection" }
-attributes #7 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "wasm-import-module"="modulename" "wasm-import-name"="import1" }
-attributes #8 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "wasm-import-module"="foobar" "wasm-import-name"="imported" }
-attributes #9 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "wasm-export-name"="exported" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #3 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "wasm-export-name"="extern_func" }
+attributes #4 = { inlinehint nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #5 = { noinline nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #6 = { noinline nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "wasm-export-name"="exportedFunctionInSection" }
+attributes #7 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "wasm-import-module"="modulename" "wasm-import-name"="import1" }
+attributes #8 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "wasm-import-module"="foobar" "wasm-import-name"="imported" }
+attributes #9 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" "wasm-export-name"="exported" }

compiler/testdata/slice.ll

@@ -51,9 +51,9 @@ entry:
   %varargs = call align 4 dereferenceable(12) ptr @runtime.alloc(i32 12, ptr nonnull inttoptr (i32 3 to ptr), ptr undef) #3
   call void @runtime.trackPointer(ptr nonnull %varargs, ptr nonnull %stackalloc, ptr undef) #3
   store i32 1, ptr %varargs, align 4
-  %0 = getelementptr inbounds [3 x i32], ptr %varargs, i32 0, i32 1
+  %0 = getelementptr inbounds i8, ptr %varargs, i32 4
   store i32 2, ptr %0, align 4
-  %1 = getelementptr inbounds [3 x i32], ptr %varargs, i32 0, i32 2
+  %1 = getelementptr inbounds i8, ptr %varargs, i32 8
   store i32 3, ptr %1, align 4
   %append.new = call { ptr, i32, i32 } @runtime.sliceAppend(ptr %ints.data, ptr nonnull %varargs, i32 %ints.len, i32 %ints.cap, i32 3, i32 4, ptr undef) #3
   %append.newPtr = extractvalue { ptr, i32, i32 } %append.new, 0
@@ -286,7 +286,7 @@ entry:
   br i1 %4, label %unsafe.Slice.throw, label %unsafe.Slice.next
 
 unsafe.Slice.next:                                ; preds = %entry
-  %5 = trunc i64 %len to i32
+  %5 = trunc nuw i64 %len to i32
   %6 = insertvalue { ptr, i32, i32 } undef, ptr %ptr, 0
   %7 = insertvalue { ptr, i32, i32 } %6, i32 %5, 1
   %8 = insertvalue { ptr, i32, i32 } %7, i32 %5, 2
@@ -310,7 +310,7 @@ entry:
   br i1 %4, label %unsafe.Slice.throw, label %unsafe.Slice.next
 
 unsafe.Slice.next:                                ; preds = %entry
-  %5 = trunc i64 %len to i32
+  %5 = trunc nuw i64 %len to i32
   %6 = insertvalue { ptr, i32, i32 } undef, ptr %ptr, 0
   %7 = insertvalue { ptr, i32, i32 } %6, i32 %5, 1
   %8 = insertvalue { ptr, i32, i32 } %7, i32 %5, 2
@@ -322,7 +322,7 @@ unsafe.Slice.throw:                               ; preds = %entry
   unreachable
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
 attributes #3 = { nounwind }

compiler/testdata/string.ll

@@ -97,7 +97,7 @@ lookup.throw:                                     ; preds = %entry
   unreachable
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
 attributes #3 = { nounwind }

compiler/testdata/zeromap.ll

@@ -81,7 +81,7 @@ entry:
   call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %hashmap.key)
   %s.elt = extractvalue [2 x %main.hasPadding] %s, 0
   store %main.hasPadding %s.elt, ptr %hashmap.key, align 4
-  %hashmap.key.repack1 = getelementptr inbounds [2 x %main.hasPadding], ptr %hashmap.key, i32 0, i32 1
+  %hashmap.key.repack1 = getelementptr inbounds i8, ptr %hashmap.key, i32 12
   %s.elt2 = extractvalue [2 x %main.hasPadding] %s, 1
   store %main.hasPadding %s.elt2, ptr %hashmap.key.repack1, align 4
   %0 = getelementptr inbounds i8, ptr %hashmap.key, i32 1
@@ -109,7 +109,7 @@ entry:
   call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %hashmap.key)
   %s.elt = extractvalue [2 x %main.hasPadding] %s, 0
   store %main.hasPadding %s.elt, ptr %hashmap.key, align 4
-  %hashmap.key.repack1 = getelementptr inbounds [2 x %main.hasPadding], ptr %hashmap.key, i32 0, i32 1
+  %hashmap.key.repack1 = getelementptr inbounds i8, ptr %hashmap.key, i32 12
   %s.elt2 = extractvalue [2 x %main.hasPadding] %s, 1
   store %main.hasPadding %s.elt2, ptr %hashmap.key.repack1, align 4
   %0 = getelementptr inbounds i8, ptr %hashmap.key, i32 1
@@ -132,9 +132,9 @@ entry:
   ret void
 }
 
-attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
-attributes #3 = { noinline nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
+attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
+attributes #3 = { noinline nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
 attributes #4 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
 attributes #5 = { nounwind }

go.mod

@@ -3,7 +3,7 @@ module github.com/tinygo-org/tinygo
 go 1.19
 
 require (
-	github.com/aykevl/go-wasm v0.0.2-0.20240312204833-50275154210c
+	github.com/aykevl/go-wasm v0.0.2-0.20240825160117-b76c3f9f0982
 	github.com/blakesmith/ar v0.0.0-20150311145944-8bd4349a67f2
 	github.com/chromedp/cdproto v0.0.0-20220113222801-0725d94bb6ee
 	github.com/chromedp/chromedp v0.7.6
@@ -20,7 +20,7 @@ require (
 	golang.org/x/sys v0.21.0
 	golang.org/x/tools v0.22.1-0.20240621165957-db513b091504
 	gopkg.in/yaml.v2 v2.4.0
-	tinygo.org/x/go-llvm v0.0.0-20240627184919-3b50c76783a8
+	tinygo.org/x/go-llvm v0.0.0-20250119132755-9dca92dfb4f9
 )
 
 require (

go.sum

@@ -1,5 +1,5 @@
-github.com/aykevl/go-wasm v0.0.2-0.20240312204833-50275154210c h1:4T0Vj1UkGgcpkRrmn7SbokebnlfxJcMZPgWtOYACAAA=
-github.com/aykevl/go-wasm v0.0.2-0.20240312204833-50275154210c/go.mod h1:7sXyiaA0WtSogCu67R2252fQpVmJMh9JWJ9ddtGkpWw=
+github.com/aykevl/go-wasm v0.0.2-0.20240825160117-b76c3f9f0982 h1:cD7QfvrJdYmBw2tFP/VyKPT8ZESlcrwSwo7SvH9Y4dc=
+github.com/aykevl/go-wasm v0.0.2-0.20240825160117-b76c3f9f0982/go.mod h1:7sXyiaA0WtSogCu67R2252fQpVmJMh9JWJ9ddtGkpWw=
 github.com/blakesmith/ar v0.0.0-20150311145944-8bd4349a67f2 h1:oMCHnXa6CCCafdPDbMh/lWRhRByN0VFLvv+g+ayx1SI=
 github.com/blakesmith/ar v0.0.0-20150311145944-8bd4349a67f2/go.mod h1:PkYb9DJNAwrSvRx5DYA+gUcOIgTGVMNkfSCbZM8cWpI=
 github.com/chromedp/cdproto v0.0.0-20211126220118-81fa0469ad77/go.mod h1:At5TxYYdxkbQL0TSefRjhLE3Q0lgvqKKMSFUglJ7i1U=
@@ -74,5 +74,5 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-tinygo.org/x/go-llvm v0.0.0-20240627184919-3b50c76783a8 h1:bLsZXRUBavt++CJlMN7sppNziqu3LyamESLhFJcpqFQ=
-tinygo.org/x/go-llvm v0.0.0-20240627184919-3b50c76783a8/go.mod h1:GFbusT2VTA4I+l4j80b17KFK+6whv69Wtny5U+T8RR0=
+tinygo.org/x/go-llvm v0.0.0-20250119132755-9dca92dfb4f9 h1:rMvEzuCYjyiR+pmdiCVWTQw3L6VqiSIXoL19I3lYufE=
+tinygo.org/x/go-llvm v0.0.0-20250119132755-9dca92dfb4f9/go.mod h1:GFbusT2VTA4I+l4j80b17KFK+6whv69Wtny5U+T8RR0=

goenv/version.go

@@ -10,7 +10,7 @@ import (
 
 // Version of TinyGo.
 // Update this value before release of new version of software.
-const version = "0.35.0"
+const version = "0.36.0-dev"
 
 // Return TinyGo version, either in the form 0.30.0 or as a development version
 // (like 0.30.0-dev-abcd012).

interp/memory.go

@@ -1046,6 +1046,8 @@ func (v *rawValue) set(llvmValue llvm.Value, r *runner) {
 				v.buf[i] = ptrValue.pointer
 			}
 		case llvm.ICmp:
+			// Note: constant icmp isn't supported anymore in LLVM 19.
+			// Once we drop support for LLVM 18, this can be removed.
 			size := r.targetData.TypeAllocSize(llvmValue.Operand(0).Type())
 			lhs := newRawValue(uint32(size))
 			rhs := newRawValue(uint32(size))

interp/testdata/consteval.ll

@@ -3,7 +3,6 @@ target triple = "x86_64--linux"
 
 @intToPtrResult = global i8 0
 @ptrToIntResult = global i8 0
-@icmpResult = global i8 0
 @pointerTagResult = global i64 0
 @someArray = internal global {i16, i8, i8} zeroinitializer
 @someArrayPointer = global ptr zeroinitializer
@@ -17,7 +16,6 @@ define internal void @main.init() {
   call void @testIntToPtr()
   call void @testPtrToInt()
   call void @testConstGEP()
-  call void @testICmp()
   call void @testPointerTag()
   ret void
 }
@@ -53,19 +51,6 @@ define internal void @testConstGEP() {
   ret void
 }
 
-define internal void @testICmp() {
-  br i1 icmp eq (i64 ptrtoint (ptr @ptrToIntResult to i64), i64 0), label %equal, label %unequal
-equal:
-  ; should not be reached
-  store i8 1, ptr @icmpResult
-  ret void
-unequal:
-  ; should be reached
-  store i8 2, ptr @icmpResult
-  ret void
-  ret void
-}
-
 define internal void @testPointerTag() {
   %val = and i64 ptrtoint (ptr getelementptr inbounds (i8, ptr @someArray, i32 2) to i64), 3
   store i64 %val, ptr @pointerTagResult

interp/testdata/consteval.out.ll

@@ -3,10 +3,9 @@ target triple = "x86_64--linux"
 
 @intToPtrResult = local_unnamed_addr global i8 2
 @ptrToIntResult = local_unnamed_addr global i8 2
-@icmpResult = local_unnamed_addr global i8 2
 @pointerTagResult = local_unnamed_addr global i64 2
 @someArray = internal global { i16, i8, i8 } zeroinitializer
-@someArrayPointer = local_unnamed_addr global ptr getelementptr inbounds ({ i16, i8, i8 }, ptr @someArray, i64 0, i32 1)
+@someArrayPointer = local_unnamed_addr global ptr getelementptr inbounds (i8, ptr @someArray, i64 2)
 
 define void @runtime.initAll() local_unnamed_addr {
   ret void

main.go

@@ -1062,9 +1062,8 @@ func findFATMounts(options *compileopts.Options) ([]mountPoint, error) {
 		return points, nil
 	case "windows":
 		// Obtain a list of all currently mounted volumes.
-		cmd := executeCommand(options, "wmic",
-			"PATH", "Win32_LogicalDisk",
-			"get", "DeviceID,VolumeName,FileSystem,DriveType")
+		cmd := executeCommand(options, "powershell", "-c",
+			"Get-CimInstance -ClassName Win32_LogicalDisk | Select-Object DeviceID, DriveType, FileSystem, VolumeName")
 		var out bytes.Buffer
 		cmd.Stdout = &out
 		err := cmd.Run()

src/crypto/tls/tls.go

@@ -101,7 +101,13 @@ type Dialer struct {
 //
 // The returned Conn, if any, will always be of type *Conn.
 func (d *Dialer) DialContext(ctx context.Context, network, addr string) (net.Conn, error) {
-	return nil, errors.New("tls:DialContext not implemented")
+	switch network {
+	case "tcp", "tcp4":
+	default:
+		return nil, fmt.Errorf("Network %s not supported", network)
+	}
+
+	return net.DialTLS(addr)
 }
 
 // LoadX509KeyPair reads and parses a public/private key pair from a pair

src/examples/pininterrupt/pininterrupt.go

@@ -3,7 +3,7 @@ package main
 // This example demonstrates how to use pin change interrupts.
 //
 // This is only an example and should not be copied directly in any serious
-// circuit, because it lacks an important feature: debouncing.
+// circuit, because it only naively implements an important feature: debouncing.
 // See: https://en.wikipedia.org/wiki/Switch#Contact_bounce
 
 import (
@@ -15,6 +15,8 @@ const (
 	led = machine.LED
 )
 
+var lastPress time.Time
+
 func main() {
 
 	// Configure the LED, defaulting to on (usually setting the pin to low will
@@ -29,6 +31,13 @@ func main() {
 
 	// Set an interrupt on this pin.
 	err := button.SetInterrupt(buttonPinChange, func(machine.Pin) {
+
+		// Ignore events that are too close to the last registered press (debouncing)
+		if time.Since(lastPress) < 100*time.Millisecond {
+			return
+		}
+		lastPress = time.Now()
+
 		led.Set(!led.Get())
 	})
 	if err != nil {

src/internal/task/atomic-cooperative.go

@@ -1,3 +1,5 @@
+//go:build tinygo.unicore
+
 package task
 
 // Atomics implementation for cooperative systems. The atomic types here aren't

src/internal/task/atomic-preemptive.go

@@ -0,0 +1,14 @@
+//go:build !tinygo.unicore
+
+package task
+
+// Atomics implementation for non-cooperative systems (multithreaded, etc).
+// These atomic types use real atomic instructions.
+
+import "sync/atomic"
+
+type (
+	Uintptr = atomic.Uintptr
+	Uint32  = atomic.Uint32
+	Uint64  = atomic.Uint64
+)

src/internal/task/futex-cooperative.go

@@ -1,3 +1,5 @@
+//go:build tinygo.unicore
+
 package task
 
 // A futex is a way for userspace to wait with the pointer as the key, and for

src/internal/task/futex-cores.go

@@ -0,0 +1,64 @@
+//go:build scheduler.cores
+
+package task
+
+import "runtime/interrupt"
+
+// A futex is a way for userspace to wait with the pointer as the key, and for
+// another thread to wake one or all waiting threads keyed on the same pointer.
+//
+// A futex does not change the underlying value, it only reads it before to prevent
+// lost wake-ups.
+type Futex struct {
+	Uint32
+
+	waiters Stack
+}
+
+// Atomically check for cmp to still be equal to the futex value and if so, go
+// to sleep. Return true if we were definitely awoken by a call to Wake or
+// WakeAll, and false if we can't be sure of that.
+func (f *Futex) Wait(cmp uint32) (awoken bool) {
+	mask := futexLock()
+
+	if f.Uint32.Load() != cmp {
+		futexUnlock(mask)
+		return false
+	}
+
+	// Push the current goroutine onto the waiter stack.
+	f.waiters.Push(Current())
+
+	futexUnlock(mask)
+
+	// Pause until this task is awoken by Wake/WakeAll.
+	Pause()
+
+	// We were awoken by a call to Wake or WakeAll. There is no chance for
+	// spurious wakeups.
+	return true
+}
+
+// Wake a single waiter.
+func (f *Futex) Wake() {
+	mask := futexLock()
+	if t := f.waiters.Pop(); t != nil {
+		scheduleTask(t)
+	}
+	futexUnlock(mask)
+}
+
+// Wake all waiters.
+func (f *Futex) WakeAll() {
+	mask := futexLock()
+	for t := f.waiters.Pop(); t != nil; t = f.waiters.Pop() {
+		scheduleTask(t)
+	}
+	futexUnlock(mask)
+}
+
+//go:linkname futexLock runtime.futexLock
+func futexLock() interrupt.State
+
+//go:linkname futexUnlock runtime.futexUnlock
+func futexUnlock(interrupt.State)

src/internal/task/futex-threads.go

@@ -0,0 +1,7 @@
+//go:build scheduler.threads
+
+package task
+
+import "internal/futex"
+
+type Futex = futex.Futex

src/internal/task/linux.go

@@ -0,0 +1,9 @@
+//go:build linux && !baremetal
+
+package task
+
+import "unsafe"
+
+// Musl uses a pointer (or unsigned long for C++) so unsafe.Pointer should be
+// fine.
+type threadID unsafe.Pointer

src/internal/task/mutex-cooperative.go

@@ -0,0 +1,45 @@
+//go:build tinygo.unicore
+
+package task
+
+type Mutex struct {
+	locked  bool
+	blocked Stack
+}
+
+func (m *Mutex) Lock() {
+	if m.locked {
+		// Push self onto stack of blocked tasks, and wait to be resumed.
+		m.blocked.Push(Current())
+		Pause()
+		return
+	}
+
+	m.locked = true
+}
+
+func (m *Mutex) Unlock() {
+	if !m.locked {
+		panic("sync: unlock of unlocked Mutex")
+	}
+
+	// Wake up a blocked task, if applicable.
+	if t := m.blocked.Pop(); t != nil {
+		scheduleTask(t)
+	} else {
+		m.locked = false
+	}
+}
+
+// TryLock tries to lock m and reports whether it succeeded.
+//
+// Note that while correct uses of TryLock do exist, they are rare,
+// and use of TryLock is often a sign of a deeper problem
+// in a particular use of mutexes.
+func (m *Mutex) TryLock() bool {
+	if m.locked {
+		return false
+	}
+	m.Lock()
+	return true
+}

src/internal/task/mutex-preemptive.go

@@ -0,0 +1,71 @@
+//go:build !tinygo.unicore
+
+package task
+
+// Futex-based mutex.
+// This is largely based on the paper "Futexes are Tricky" by Ulrich Drepper.
+// It describes a few ways to implement mutexes using a futex, and how some
+// seemingly-obvious implementations don't exactly work as intended.
+// Unfortunately, Go atomic operations work slightly differently so we can't
+// copy the algorithm verbatim.
+//
+// The implementation works like this. The futex can have 3 different values,
+// depending on the state:
+//
+//   - 0: the futex is currently unlocked.
+//   - 1: the futex is locked, but is uncontended. There is one special case: if
+//     a contended futex is unlocked, it is set to 0. It is possible for another
+//     thread to lock the futex before the next waiter is woken. But because a
+//     waiter will be woken (if there is one), it will always change to 2
+//     regardless. So this is not a problem.
+//   - 2: the futex is locked, and is contended. At least one thread is trying
+//     to obtain the lock (and is in the contended loop, see below).
+//
+// For the paper, see:
+// https://dept-info.labri.fr/~denis/Enseignement/2008-IR/Articles/01-futex.pdf)
+
+type Mutex struct {
+	futex Futex
+}
+
+func (m *Mutex) Lock() {
+	// Fast path: try to take an uncontended lock.
+	if m.futex.CompareAndSwap(0, 1) {
+		// We obtained the mutex.
+		return
+	}
+
+	// The futex is contended, so we enter the contended loop.
+	// If we manage to change the futex from 0 to 2, we managed to take the
+	// lock. Else, we have to wait until a call to Unlock unlocks this mutex.
+	// (Unlock will wake one waiter when it finds the futex is set to 2 when
+	// unlocking).
+	for m.futex.Swap(2) != 0 {
+		// Wait until we get resumed in Unlock.
+		m.futex.Wait(2)
+	}
+}
+
+func (m *Mutex) Unlock() {
+	if old := m.futex.Swap(0); old == 0 {
+		// Mutex wasn't locked before.
+		panic("sync: unlock of unlocked Mutex")
+	} else if old == 2 {
+		// Mutex was a contended lock, so we need to wake the next waiter.
+		m.futex.Wake()
+	}
+}
+
+// TryLock tries to lock m and reports whether it succeeded.
+//
+// Note that while correct uses of TryLock do exist, they are rare,
+// and use of TryLock is often a sign of a deeper problem
+// in a particular use of mutexes.
+func (m *Mutex) TryLock() bool {
+	// Fast path: try to take an uncontended lock.
+	if m.futex.CompareAndSwap(0, 1) {
+		// We obtained the mutex.
+		return true
+	}
+	return false
+}

src/internal/task/pmutex-cooperative.go

@@ -1,3 +1,5 @@
+//go:build tinygo.unicore
+
 package task
 
 // PMutex is a real mutex on systems that can be either preemptive or threaded,

src/internal/task/pmutex-preemptive.go

@@ -0,0 +1,11 @@
+//go:build !tinygo.unicore
+
+package task
+
+// PMutex is a real mutex on systems that can be either preemptive or threaded,
+// and a dummy lock on other (purely cooperative) systems.
+//
+// It is mainly useful for short operations that need a lock when threading may
+// be involved, but which do not need a lock with a purely cooperative
+// scheduler.
+type PMutex = Mutex

src/internal/task/semaphore.go

@@ -0,0 +1,32 @@
+package task
+
+// Barebones semaphore implementation.
+// The main limitation is that if there are multiple waiters, a single Post()
+// call won't do anything. Only when Post() has been called to awaken all
+// waiters will the waiters proceed.
+// This limitation is not a problem when there will only be a single waiter.
+type Semaphore struct {
+	futex Futex
+}
+
+// Post (unlock) the semaphore, incrementing the value in the semaphore.
+func (s *Semaphore) Post() {
+	newValue := s.futex.Add(1)
+	if newValue == 0 {
+		s.futex.WakeAll()
+	}
+}
+
+// Wait (lock) the semaphore, decrementing the value in the semaphore.
+func (s *Semaphore) Wait() {
+	delta := int32(-1)
+	value := s.futex.Add(uint32(delta))
+	for {
+		if int32(value) >= 0 {
+			// Semaphore unlocked!
+			return
+		}
+		s.futex.Wait(value)
+		value = s.futex.Load()
+	}
+}

src/internal/task/task.go

@@ -21,11 +21,19 @@ type Task struct {
 	// state is the underlying running state of the task.
 	state state
 
+	RunState uint8
+
 	// DeferFrame stores a pointer to the (stack allocated) defer frame of the
 	// goroutine that is used for the recover builtin.
 	DeferFrame unsafe.Pointer
 }
 
+const (
+	RunStatePaused = iota
+	RunStateRunning
+	RunStateResuming
+)
+
 // DataUint32 returns the Data field as a uint32. The value is only valid after
 // setting it through SetDataUint32 or by storing to it using DataAtomicUint32.
 func (t *Task) DataUint32() uint32 {
@@ -53,3 +61,11 @@ func runtime_alloc(size uintptr, layout unsafe.Pointer) unsafe.Pointer
 
 //go:linkname scheduleTask runtime.scheduleTask
 func scheduleTask(*Task)
+
+//go:linkname runtimePanic runtime.runtimePanic
+func runtimePanic(str string)
+
+// Stack canary, to detect a stack overflow. The number is a random number
+// generated by random.org. The bit fiddling dance is necessary because
+// otherwise Go wouldn't allow the cast to a smaller integer size.
+const stackCanary = uintptr(uint64(0x670c1333b83bf575) & uint64(^uintptr(0)))

src/internal/task/task_asyncify.go

@@ -6,14 +6,6 @@ import (
 	"unsafe"
 )
 
-// Stack canary, to detect a stack overflow. The number is a random number
-// generated by random.org. The bit fiddling dance is necessary because
-// otherwise Go wouldn't allow the cast to a smaller integer size.
-const stackCanary = uintptr(uint64(0x670c1333b83bf575) & uint64(^uintptr(0)))
-
-//go:linkname runtimePanic runtime.runtimePanic
-func runtimePanic(str string)
-
 // state is a structure which holds a reference to the state of the task.
 // When the task is suspended, the stack pointers are saved here.
 type state struct {

src/internal/task/task_none.go

@@ -7,9 +7,6 @@ import "unsafe"
 // There is only one goroutine so the task struct can be a global.
 var mainTask Task
 
-//go:linkname runtimePanic runtime.runtimePanic
-func runtimePanic(str string)
-
 func Pause() {
 	runtimePanic("scheduler is disabled")
 }

src/internal/task/task_stack.go

@@ -1,4 +1,4 @@
-//go:build scheduler.tasks
+//go:build scheduler.tasks || scheduler.cores
 
 package task
 
@@ -7,14 +7,6 @@ import (
 	"unsafe"
 )
 
-//go:linkname runtimePanic runtime.runtimePanic
-func runtimePanic(str string)
-
-// Stack canary, to detect a stack overflow. The number is a random number
-// generated by random.org. The bit fiddling dance is necessary because
-// otherwise Go wouldn't allow the cast to a smaller integer size.
-const stackCanary = uintptr(uint64(0x670c1333b83bf575) & uint64(^uintptr(0)))
-
 // state is a structure which holds a reference to the state of the task.
 // When the task is suspended, the registers are stored onto the stack and the stack pointer is stored into sp.
 type state struct {
@@ -33,40 +25,54 @@ type state struct {
 }
 
 // currentTask is the current running task, or nil if currently in the scheduler.
-var currentTask *Task
+//var currentTask *Task
 
 // Current returns the current active task.
-func Current() *Task {
-	return currentTask
+//func Current() *Task {
+//	return currentTask
+//}
+
+//go:linkname Current runtime.currentTask
+func Current() *Task
+
+//go:linkname schedulerLock runtime.schedulerLock
+func schedulerLock()
+
+func Pause() {
+	schedulerLock()
+	PauseLocked()
 }
 
 // Pause suspends the current task and returns to the scheduler.
 // This function may only be called when running on a goroutine stack, not when running on the system stack or in an interrupt.
-func Pause() {
+func PauseLocked() {
 	// Check whether the canary (the lowest address of the stack) is still
 	// valid. If it is not, a stack overflow has occurred.
-	if *currentTask.state.canaryPtr != stackCanary {
+	if *Current().state.canaryPtr != stackCanary {
 		runtimePanic("goroutine stack overflow")
 	}
 	if interrupt.In() {
 		runtimePanic("blocked inside interrupt")
 	}
-	currentTask.state.pause()
+	current := Current()
+	current.RunState = RunStatePaused
+	current.state.pause()
 }
 
-//export tinygo_pause
-func pause() {
+//export tinygo_task_exit
+func taskExit() {
+	println("-- exiting task")
 	Pause()
 }
 
 // Resume the task until it pauses or completes.
 // This may only be called from the scheduler.
 func (t *Task) Resume() {
-	currentTask = t
-	t.gcData.swap()
+	//currentTask = t
+	//t.gcData.swap()
 	t.state.resume()
-	t.gcData.swap()
-	currentTask = nil
+	//t.gcData.swap()
+	//currentTask = nil
 }
 
 // initialize the state and prepare to call the specified function with the specified argument bundle.

src/internal/task/task_stack_cortexm.S

@@ -28,7 +28,7 @@ tinygo_startTask:
     blx   r4
 
     // After return, exit this goroutine. This is a tail call.
-    bl    	tinygo_pause
+    bl    	tinygo_task_exit
     .cfi_endproc
 .size tinygo_startTask, .-tinygo_startTask
 

src/internal/task/task_stack_cortexm.go

@@ -1,4 +1,4 @@
-//go:build scheduler.tasks && cortexm
+//go:build (scheduler.tasks || scheduler.cores) && cortexm
 
 package task
 

src/internal/task/task_threads.c

@@ -0,0 +1,113 @@
+//go:build none
+
+#define _GNU_SOURCE
+#include <pthread.h>
+#include <semaphore.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+
+// BDWGC also uses SIGRTMIN+6 on Linux, which seems like a reasonable choice.
+#ifdef __linux__
+#define taskPauseSignal (SIGRTMIN + 6)
+#endif
+
+// Pointer to the current task.Task structure.
+// Ideally the entire task.Task structure would be a thread-local variable but
+// this also works.
+static __thread void *current_task;
+
+struct state_pass {
+    void      *(*start)(void*);
+    void      *args;
+    void      *task;
+    uintptr_t *stackTop;
+    sem_t     startlock;
+};
+
+// Handle the GC pause in Go.
+void tinygo_task_gc_pause(int sig);
+
+// Initialize the main thread.
+void tinygo_task_init(void *mainTask, pthread_t *thread, int *numCPU, void *context) {
+    // Make sure the current task pointer is set correctly for the main
+    // goroutine as well.
+    current_task = mainTask;
+
+    // Store the thread ID of the main thread.
+    *thread = pthread_self();
+
+    // Register the "GC pause" signal for the entire process.
+    // Using pthread_kill, we can still send the signal to a specific thread.
+    struct sigaction act = { 0 };
+    act.sa_flags = SA_SIGINFO;
+    act.sa_handler = &tinygo_task_gc_pause;
+    sigaction(taskPauseSignal, &act, NULL);
+
+    // Obtain the number of CPUs available on program start (for NumCPU).
+    int num = sysconf(_SC_NPROCESSORS_ONLN);
+    if (num <= 0) {
+        // Fallback in case there is an error.
+        num = 1;
+    }
+    *numCPU = num;
+}
+
+void tinygo_task_exited(void*);
+
+// Helper to start a goroutine while also storing the 'task' structure.
+static void* start_wrapper(void *arg) {
+    struct state_pass *state = arg;
+    void *(*start)(void*) = state->start;
+    void *args = state->args;
+    current_task = state->task;
+
+    // Save the current stack pointer in the goroutine state, for the GC.
+    int stackAddr;
+    *(state->stackTop) = (uintptr_t)(&stackAddr);
+
+    // Notify the caller that the thread has successfully started and
+    // initialized.
+    sem_post(&state->startlock);
+
+    // Run the goroutine function.
+    start(args);
+
+    // Notify the Go side this thread will exit.
+    tinygo_task_exited(current_task);
+
+    return NULL;
+};
+
+// Start a new goroutine in an OS thread.
+int tinygo_task_start(uintptr_t fn, void *args, void *task, pthread_t *thread, uintptr_t *stackTop, void *context) {
+    // Sanity check. Should get optimized away.
+    if (sizeof(pthread_t) != sizeof(void*)) {
+        __builtin_trap();
+    }
+
+    struct state_pass state = {
+        .start     = (void*)fn,
+        .args      = args,
+        .task      = task,
+        .stackTop  = stackTop,
+    };
+    sem_init(&state.startlock, 0, 0);
+    int result = pthread_create(thread, NULL, &start_wrapper, &state);
+
+    // Wait until the thread has been created and read all state_pass variables.
+    sem_wait(&state.startlock);
+
+    return result;
+}
+
+// Return the current task (for task.Current()).
+void* tinygo_task_current(void) {
+    return current_task;
+}
+
+// Send a signal to cause the task to pause for the GC mark phase.
+void tinygo_task_send_gc_signal(pthread_t thread) {
+    pthread_kill(thread, taskPauseSignal);
+}

src/internal/task/task_threads.go

@@ -0,0 +1,268 @@
+//go:build scheduler.threads
+
+package task
+
+import (
+	"sync/atomic"
+	"unsafe"
+)
+
+// If true, print verbose debug logs.
+const verbose = false
+
+// Scheduler-specific state.
+type state struct {
+	// Goroutine ID. The number here is not really significant and after a while
+	// it could wrap around. But it is useful for debugging.
+	id uintptr
+
+	// Thread ID, pthread_t or similar (typically implemented as a pointer).
+	thread threadID
+
+	// Highest address of the stack. It is stored when the goroutine starts, and
+	// is needed to be able to scan the stack.
+	stackTop uintptr
+
+	// Next task in the activeTasks queue.
+	QueueNext *Task
+
+	// Semaphore to pause/resume the thread atomically.
+	pauseSem Semaphore
+
+	// Semaphore used for stack scanning.
+	// We can't reuse pauseSem here since the thread might have been paused for
+	// other reasons (for example, because it was waiting on a channel).
+	gcSem Semaphore
+}
+
+// Goroutine counter, starting at 0 for the main goroutine.
+var goroutineID uintptr
+
+var numCPU int32
+
+var mainTask Task
+
+// Queue of tasks (see QueueNext) that currently exist in the program.
+var activeTasks = &mainTask
+var activeTaskLock PMutex
+
+func OnSystemStack() bool {
+	runtimePanic("todo: task.OnSystemStack")
+	return false
+}
+
+// Initialize the main goroutine state. Must be called by the runtime on
+// startup, before starting any other goroutines.
+func Init(sp uintptr) {
+	mainTask.state.stackTop = sp
+	tinygo_task_init(&mainTask, &mainTask.state.thread, &numCPU)
+}
+
+// Return the task struct for the current thread.
+func Current() *Task {
+	t := (*Task)(tinygo_task_current())
+	if t == nil {
+		runtimePanic("unknown current task")
+	}
+	return t
+}
+
+// Pause pauses the current task, until it is resumed by another task.
+// It is possible that another task has called Resume() on the task before it
+// hits Pause(), in which case the task won't be paused but continues
+// immediately.
+func Pause() {
+	// Wait until resumed
+	t := Current()
+	if verbose {
+		println("*** pause:  ", t.state.id)
+	}
+	t.state.pauseSem.Wait()
+}
+
+// Resume the given task.
+// It is legal to resume a task before it gets paused, it means that the next
+// call to Pause() won't pause but will continue immediately. This happens in
+// practice sometimes in channel operations, where the Resume() might get called
+// between the channel unlock and the call to Pause().
+func (t *Task) Resume() {
+	if verbose {
+		println("*** resume: ", t.state.id)
+	}
+	// Increment the semaphore counter.
+	// If the task is currently paused in Wait(), it will resume.
+	// If the task is not yet paused, the next call to Wait() will continue
+	// immediately.
+	t.state.pauseSem.Post()
+}
+
+// Start a new OS thread.
+func start(fn uintptr, args unsafe.Pointer, stackSize uintptr) {
+	t := &Task{}
+	t.state.id = atomic.AddUintptr(&goroutineID, 1)
+	if verbose {
+		println("*** start:  ", t.state.id, "from", Current().state.id)
+	}
+
+	// Start the new thread, and add it to the list of threads.
+	// Do this with a lock so that only started threads are part of the queue
+	// and the stop-the-world GC won't see threads that haven't started yet or
+	// are not fully started yet.
+	activeTaskLock.Lock()
+	errCode := tinygo_task_start(fn, args, t, &t.state.thread, &t.state.stackTop)
+	if errCode != 0 {
+		runtimePanic("could not start thread")
+	}
+	t.state.QueueNext = activeTasks
+	activeTasks = t
+	activeTaskLock.Unlock()
+}
+
+//export tinygo_task_exited
+func taskExited(t *Task) {
+	if verbose {
+		println("*** exit:", t.state.id)
+	}
+
+	// Remove from the queue.
+	// TODO: this can be made more efficient by using a doubly linked list.
+	activeTaskLock.Lock()
+	found := false
+	for q := &activeTasks; *q != nil; q = &(*q).state.QueueNext {
+		if *q == t {
+			*q = t.state.QueueNext
+			found = true
+			break
+		}
+	}
+	activeTaskLock.Unlock()
+
+	// Sanity check.
+	if !found {
+		runtimePanic("taskExited failed")
+	}
+}
+
+// Futex to wait on until all tasks have finished scanning the stack.
+// This is basically a sync.WaitGroup.
+var scanDoneFutex Futex
+
+// GC scan phase. Because we need to stop the world while scanning, this kinda
+// needs to be done in the tasks package.
+func GCScan() {
+	current := Current()
+
+	// Don't allow new goroutines to be started while pausing/resuming threads
+	// in the stop-the-world phase.
+	activeTaskLock.Lock()
+
+	// Pause all other threads.
+	numOtherThreads := uint32(0)
+	for t := activeTasks; t != nil; t = t.state.QueueNext {
+		if t != current {
+			numOtherThreads++
+			tinygo_task_send_gc_signal(t.state.thread)
+		}
+	}
+
+	// Store the number of threads to wait for in the futex.
+	// This is the equivalent of doing an initial wg.Add(numOtherThreads).
+	scanDoneFutex.Store(numOtherThreads)
+
+	// Scan the current stack, and all current registers.
+	scanCurrentStack()
+
+	// Wake each paused thread for the first time so it will scan the stack.
+	for t := activeTasks; t != nil; t = t.state.QueueNext {
+		if t != current {
+			t.state.gcSem.Post()
+		}
+	}
+
+	// Wait until all threads have finished scanning their stack.
+	// This is the equivalent of wg.Wait()
+	for {
+		val := scanDoneFutex.Load()
+		if val == 0 {
+			break
+		}
+		scanDoneFutex.Wait(val)
+	}
+
+	// Scan all globals (implemented in the runtime).
+	gcScanGlobals()
+
+	// Wake each paused thread for the second time, so they will resume normal
+	// operation.
+	for t := activeTasks; t != nil; t = t.state.QueueNext {
+		if t != current {
+			t.state.gcSem.Post()
+		}
+	}
+
+	// Allow goroutines to start and exit again.
+	activeTaskLock.Unlock()
+}
+
+// Scan globals, implemented in the runtime package.
+func gcScanGlobals()
+
+var stackScanLock PMutex
+
+//export tinygo_task_gc_pause
+func tingyo_task_gc_pause() {
+	// Wait until we get the signal to start scanning the stack.
+	Current().state.gcSem.Wait()
+
+	// Scan the thread stack.
+	// Only scan a single thread stack at a time, because the GC marking phase
+	// doesn't support parallelism.
+	// TODO: it may be possible to call markRoots directly (without saving
+	// registers) since we are in a signal handler that already saved a bunch of
+	// registers. This is an optimization left for a future time.
+	stackScanLock.Lock()
+	scanCurrentStack()
+	stackScanLock.Unlock()
+
+	// Equivalent of wg.Done(): subtract one from the futex and if the result is
+	// 0 (meaning we were the last in the waitgroup), wake the waiting thread.
+	n := uint32(1)
+	if scanDoneFutex.Add(-n) == 0 {
+		scanDoneFutex.Wake()
+	}
+
+	// Wait until we get the signal we can resume normally (after the mark phase
+	// has finished).
+	Current().state.gcSem.Wait()
+}
+
+//go:export tinygo_scanCurrentStack
+func scanCurrentStack()
+
+// Return the highest address of the current stack.
+func StackTop() uintptr {
+	return Current().state.stackTop
+}
+
+// Using //go:linkname instead of //export so that we don't tell the compiler
+// that the 't' parameter won't escape (because it will).
+//
+//go:linkname tinygo_task_init tinygo_task_init
+func tinygo_task_init(t *Task, thread *threadID, numCPU *int32)
+
+// Here same as for tinygo_task_init.
+//
+//go:linkname tinygo_task_start tinygo_task_start
+func tinygo_task_start(fn uintptr, args unsafe.Pointer, t *Task, thread *threadID, stackTop *uintptr) int32
+
+// Pause the thread by sending it a signal.
+//
+//export tinygo_task_send_gc_signal
+func tinygo_task_send_gc_signal(threadID)
+
+//export tinygo_task_current
+func tinygo_task_current() unsafe.Pointer
+
+func NumCPU() int {
+	return int(numCPU)
+}

src/machine/board_elecrow-rp2040-w5.go

@@ -0,0 +1,94 @@
+//go:build elecrow_rp2040
+
+// This file contains the pin mappings for the Elecrow Pico rp2040 W5 boards.
+//
+// Elecrow Pico rp2040 W5 is a microcontroller using the Raspberry Pi RP2040
+// chip and rtl8720d Wifi chip.
+//
+// - https://www.elecrow.com/wiki/PICO_W5_RP2040_Dev_Board.html
+package machine
+
+// GPIO pins
+const (
+	GP0  Pin = GPIO0
+	GP1  Pin = GPIO1
+	GP2  Pin = GPIO2
+	GP3  Pin = GPIO3
+	GP4  Pin = GPIO4
+	GP5  Pin = GPIO5
+	GP6  Pin = GPIO6
+	GP7  Pin = GPIO7
+	GP8  Pin = GPIO8
+	GP9  Pin = GPIO9
+	GP10 Pin = GPIO10
+	GP11 Pin = GPIO11
+	GP12 Pin = GPIO12
+	GP13 Pin = GPIO13
+	GP14 Pin = GPIO14
+	GP15 Pin = GPIO15
+	GP16 Pin = GPIO16
+	GP17 Pin = GPIO17
+	GP18 Pin = GPIO18
+	GP19 Pin = GPIO19
+	GP20 Pin = GPIO20
+	GP21 Pin = GPIO21
+	GP22 Pin = GPIO22
+	GP26 Pin = GPIO26
+	GP27 Pin = GPIO27
+	GP28 Pin = GPIO28
+
+	// Onboard LED
+	LED Pin = GPIO25
+
+	// Onboard crystal oscillator frequency, in MHz.
+	xoscFreq = 12 // MHz
+)
+
+// I2C Default pins on Raspberry Pico.
+const (
+	I2C0_SDA_PIN = GP4
+	I2C0_SCL_PIN = GP5
+
+	I2C1_SDA_PIN = GP2
+	I2C1_SCL_PIN = GP3
+)
+
+// SPI default pins
+const (
+	// Default Serial Clock Bus 0 for SPI communications
+	SPI0_SCK_PIN = GPIO18
+	// Default Serial Out Bus 0 for SPI communications
+	SPI0_SDO_PIN = GPIO19 // Tx
+	// Default Serial In Bus 0 for SPI communications
+	SPI0_SDI_PIN = GPIO16 // Rx
+
+	// Default Serial Clock Bus 1 for SPI communications
+	SPI1_SCK_PIN = GPIO10
+	// Default Serial Out Bus 1 for SPI communications
+	SPI1_SDO_PIN = GPIO11 // Tx
+	// Default Serial In Bus 1 for SPI communications
+	SPI1_SDI_PIN = GPIO12 // Rx
+)
+
+// UART pins
+const (
+	UART0_TX_PIN = GPIO0
+	UART0_RX_PIN = GPIO1
+	UART1_TX_PIN = GPIO4 // Wired to rtl8720d UART1_Tx
+	UART1_RX_PIN = GPIO5 // Wired to rtl8720n UART1_Rx
+	UART_TX_PIN  = UART0_TX_PIN
+	UART_RX_PIN  = UART0_RX_PIN
+)
+
+var DefaultUART = UART0
+
+// USB identifiers
+const (
+	usb_STRING_PRODUCT      = "Pico"
+	usb_STRING_MANUFACTURER = "Raspberry Pi"
+)
+
+var (
+	usb_VID uint16 = 0x2E8A
+	usb_PID uint16 = 0x000A
+)

src/machine/board_elecrow-rp2350-w5.go

@@ -0,0 +1,94 @@
+//go:build elecrow_rp2350
+
+// This file contains the pin mappings for the Elecrow Pico rp2350 W5 boards.
+//
+// Elecrow Pico rp2350 W5 is a microcontroller using the Raspberry Pi RP2350
+// chip and rtl8720d Wifi chip.
+//
+// - https://www.elecrow.com/pico-w5-microcontroller-development-boards-rp2350-microcontroller-board.html
+package machine
+
+// GPIO pins
+const (
+	GP0  Pin = GPIO0
+	GP1  Pin = GPIO1
+	GP2  Pin = GPIO2
+	GP3  Pin = GPIO3
+	GP4  Pin = GPIO4
+	GP5  Pin = GPIO5
+	GP6  Pin = GPIO6
+	GP7  Pin = GPIO7
+	GP8  Pin = GPIO8
+	GP9  Pin = GPIO9
+	GP10 Pin = GPIO10
+	GP11 Pin = GPIO11
+	GP12 Pin = GPIO12
+	GP13 Pin = GPIO13
+	GP14 Pin = GPIO14
+	GP15 Pin = GPIO15
+	GP16 Pin = GPIO16
+	GP17 Pin = GPIO17
+	GP18 Pin = GPIO18
+	GP19 Pin = GPIO19
+	GP20 Pin = GPIO20
+	GP21 Pin = GPIO21
+	GP22 Pin = GPIO22
+	GP26 Pin = GPIO26
+	GP27 Pin = GPIO27
+	GP28 Pin = GPIO28
+
+	// Onboard LED
+	LED Pin = GPIO25
+
+	// Onboard crystal oscillator frequency, in MHz.
+	xoscFreq = 12 // MHz
+)
+
+// I2C Default pins on Raspberry Pico.
+const (
+	I2C0_SDA_PIN = GP4
+	I2C0_SCL_PIN = GP5
+
+	I2C1_SDA_PIN = GP2
+	I2C1_SCL_PIN = GP3
+)
+
+// SPI default pins
+const (
+	// Default Serial Clock Bus 0 for SPI communications
+	SPI0_SCK_PIN = GPIO18
+	// Default Serial Out Bus 0 for SPI communications
+	SPI0_SDO_PIN = GPIO19 // Tx
+	// Default Serial In Bus 0 for SPI communications
+	SPI0_SDI_PIN = GPIO16 // Rx
+
+	// Default Serial Clock Bus 1 for SPI communications
+	SPI1_SCK_PIN = GPIO10
+	// Default Serial Out Bus 1 for SPI communications
+	SPI1_SDO_PIN = GPIO11 // Tx
+	// Default Serial In Bus 1 for SPI communications
+	SPI1_SDI_PIN = GPIO12 // Rx
+)
+
+// UART pins
+const (
+	UART0_TX_PIN = GPIO0
+	UART0_RX_PIN = GPIO1
+	UART1_TX_PIN = GPIO4 // Wired to rtl8720d UART1_Tx
+	UART1_RX_PIN = GPIO5 // Wired to rtl8720n UART1_Rx
+	UART_TX_PIN  = UART0_TX_PIN
+	UART_RX_PIN  = UART0_RX_PIN
+)
+
+var DefaultUART = UART0
+
+// USB identifiers
+const (
+	usb_STRING_PRODUCT      = "Pico2"
+	usb_STRING_MANUFACTURER = "Raspberry Pi"
+)
+
+var (
+	usb_VID uint16 = 0x2E8A
+	usb_PID uint16 = 0x000F
+)

src/machine/board_esp32c3-supermini.go

@@ -0,0 +1,57 @@
+//go:build esp32c3_supermini
+
+// This file contains the pin mappings for the ESP32 supermini boards.
+//
+// - https://web.archive.org/web/20240805232453/https://dl.artronshop.co.th/ESP32-C3%20SuperMini%20datasheet.pdf
+
+package machine
+
+// Digital Pins
+const (
+	IO0  = GPIO0
+	IO1  = GPIO1
+	IO2  = GPIO2
+	IO3  = GPIO3
+	IO4  = GPIO4
+	IO5  = GPIO5
+	IO6  = GPIO6
+	IO7  = GPIO7
+	IO8  = GPIO8
+	IO9  = GPIO9
+	IO10 = GPIO10
+	IO20 = GPIO20
+	IO21 = GPIO21
+)
+
+// Built-in LED
+const LED = GPIO8
+
+// Analog pins
+const (
+	A0 = GPIO0
+	A1 = GPIO1
+	A2 = GPIO2
+	A3 = GPIO3
+	A4 = GPIO4
+	A5 = GPIO5
+)
+
+// UART pins
+const (
+	UART_RX_PIN = GPIO20
+	UART_TX_PIN = GPIO21
+)
+
+// I2C pins
+const (
+	SDA_PIN = GPIO8
+	SCL_PIN = GPIO9
+)
+
+// SPI pins
+const (
+	SPI_MISO_PIN = GPIO5
+	SPI_MOSI_PIN = GPIO6
+	SPI_SS_PIN   = GPIO7
+	SPI_SCK_PIN  = GPIO4
+)

src/machine/board_waveshare_rp2040_tiny.go

@@ -0,0 +1,121 @@
+//go:build waveshare_rp2040_tiny
+
+// This file contains the pin mappings for the Waveshare RP2040-Tiny boards.
+//
+// Waveshare RP2040-Tiny is a microcontroller using the Raspberry Pi RP2040 chip.
+//
+// - https://www.waveshare.com/wiki/RP2040-Tiny
+package machine
+
+// Digital Pins
+const (
+	GP0  Pin = GPIO0
+	GP1  Pin = GPIO1
+	GP2  Pin = GPIO2
+	GP3  Pin = GPIO3
+	GP4  Pin = GPIO4
+	GP5  Pin = GPIO5
+	GP6  Pin = GPIO6
+	GP7  Pin = GPIO7
+	GP8  Pin = GPIO8
+	GP9  Pin = GPIO9
+	GP10 Pin = GPIO10
+	GP11 Pin = GPIO11
+	GP12 Pin = GPIO12
+	GP13 Pin = GPIO13
+	GP14 Pin = GPIO14
+	GP15 Pin = GPIO15
+	GP16 Pin = GPIO16
+	GP17 Pin = NoPin
+	GP18 Pin = NoPin
+	GP19 Pin = NoPin
+	GP20 Pin = NoPin
+	GP21 Pin = NoPin
+	GP22 Pin = NoPin
+	GP23 Pin = NoPin
+	GP24 Pin = GPIO24
+	GP25 Pin = GPIO25
+	GP26 Pin = GPIO26
+	GP27 Pin = GPIO27
+	GP28 Pin = GPIO28
+	GP29 Pin = GPIO29
+)
+
+// Analog pins
+const (
+	A0 Pin = GP26
+	A1 Pin = GP27
+	A2 Pin = GP28
+	A3 Pin = GP29
+)
+
+// Onboard LEDs
+const (
+	LED    = GP16
+	WS2812 = GP16
+)
+
+// I2C pins
+const (
+	I2C0_SDA_PIN Pin = GP0
+	I2C0_SCL_PIN Pin = GP1
+	I2C1_SDA_PIN Pin = GP2
+	I2C1_SCL_PIN Pin = GP3
+
+	// default I2C0
+	I2C_SDA_PIN Pin = I2C0_SDA_PIN
+	I2C_SCL_PIN Pin = I2C0_SCL_PIN
+)
+
+// SPI pins
+const (
+	SPI0_RX_PIN  Pin = GP0
+	SPI0_CSN_PIN Pin = GP1
+	SPI0_SCK_PIN Pin = GP2
+	SPI0_TX_PIN  Pin = GP3
+	SPI0_SDO_PIN Pin = SPI0_TX_PIN
+	SPI0_SDI_PIN Pin = SPI0_RX_PIN
+
+	SPI1_RX_PIN  Pin = GP8
+	SPI1_CSN_PIN Pin = GP9
+	SPI1_SCK_PIN Pin = GP10
+	SPI1_TX_PIN  Pin = GP11
+	SPI1_SDO_PIN Pin = SPI1_TX_PIN
+	SPI1_SDI_PIN Pin = SPI1_RX_PIN
+
+	// default SPI0
+	SPI_RX_PIN  Pin = SPI0_RX_PIN
+	SPI_CSN_PIN Pin = SPI0_CSN_PIN
+	SPI_SCK_PIN Pin = SPI0_SCK_PIN
+	SPI_TX_PIN  Pin = SPI0_TX_PIN
+	SPI_SDO_PIN Pin = SPI0_TX_PIN
+	SPI_SDI_PIN Pin = SPI0_RX_PIN
+)
+
+// Onboard crystal oscillator frequency, in MHz.
+const (
+	xoscFreq = 12 // MHz
+)
+
+// UART pins
+const (
+	UART0_TX_PIN = GP0
+	UART0_RX_PIN = GP1
+	UART1_TX_PIN = GP8
+	UART1_RX_PIN = GP9
+
+	// default UART0
+	UART_TX_PIN = UART0_TX_PIN
+	UART_RX_PIN = UART0_RX_PIN
+)
+
+// USB CDC identifiers
+const (
+	usb_STRING_PRODUCT      = "RP2040-Tiny"
+	usb_STRING_MANUFACTURER = "Waveshare"
+)
+
+var (
+	usb_VID uint16 = 0x2e8a
+	usb_PID uint16 = 0x0003
+)