mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-03 02:27:48 +00:00
Ayke van Laethem
7e7814a087
These functions were exported by accident, because the compiler had no
way of saying these functions shouldn't be exported.
This can be a big code size reduction for small programs. Before:
$ tinygo build -o test.wasm -target=wasi -no-debug -scheduler=none ./testdata/alias.go && ls -l test.wasm
-rwxrwxr-x 1 ayke ayke 2947 8 sep 13:47 test.wasm
After:
$ tinygo build -o test.wasm -target=wasi -no-debug -scheduler=none ./testdata/alias.go && ls -l test.wasm
-rwxrwxr-x 1 ayke ayke 968 8 sep 13:47 test.wasm
This is all because the GC isn't needed anymore.
This commit also adds support for using //go:wasm-module to set the
module name of an exported function (the default remains env).
69 lines
2.5 KiB
LLVM
69 lines
2.5 KiB
LLVM
; ModuleID = 'pragma.go'
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source_filename = "pragma.go"
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target datalayout = "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20"
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target triple = "wasm32-unknown-wasi"
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@extern_global = external global [0 x i8], align 1
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@main.alignedGlobal = hidden global [4 x i32] zeroinitializer, align 32
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@main.alignedGlobal16 = hidden global [4 x i32] zeroinitializer, align 16
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@main.globalInSection = hidden global i32 0, section ".special_global_section", align 4
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@undefinedGlobalNotInSection = external global i32, align 4
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@main.multipleGlobalPragmas = hidden global i32 0, section ".global_section", align 1024
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declare noalias nonnull i8* @runtime.alloc(i32, i8*, i8*) #0
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declare void @runtime.trackPointer(i8* nocapture readonly, i8*) #0
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; Function Attrs: nounwind
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define hidden void @main.init(i8* %context) unnamed_addr #1 {
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entry:
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ret void
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}
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; Function Attrs: nounwind
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define void @extern_func() #2 {
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entry:
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ret void
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}
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; Function Attrs: nounwind
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define hidden void @somepkg.someFunction1(i8* %context) unnamed_addr #1 {
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entry:
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ret void
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}
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declare void @somepkg.someFunction2(i8*) #0
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; Function Attrs: inlinehint nounwind
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define hidden void @main.inlineFunc(i8* %context) unnamed_addr #3 {
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entry:
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ret void
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}
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; Function Attrs: noinline nounwind
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define hidden void @main.noinlineFunc(i8* %context) unnamed_addr #4 {
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entry:
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ret void
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}
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; Function Attrs: nounwind
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define hidden void @main.functionInSection(i8* %context) unnamed_addr #1 section ".special_function_section" {
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entry:
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ret void
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}
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; Function Attrs: nounwind
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define void @exportedFunctionInSection() #5 section ".special_function_section" {
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entry:
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ret void
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}
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declare void @main.undefinedFunctionNotInSection(i8*) #0
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attributes #0 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
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attributes #1 = { nounwind "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
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attributes #2 = { nounwind "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" "wasm-export-module"="env" "wasm-export-name"="extern_func" "wasm-import-module"="env" "wasm-import-name"="extern_func" }
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attributes #3 = { inlinehint nounwind "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
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attributes #4 = { noinline nounwind "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
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attributes #5 = { nounwind "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" "wasm-export-module"="env" "wasm-export-name"="exportedFunctionInSection" "wasm-import-module"="env" "wasm-import-name"="exportedFunctionInSection" }
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