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runtime: require explicit GC layouts

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This commit is contained in:
Jake Bailey
2026-08-07 10:21:19 -07:00
committed by Ron Evans
parent 1a4cb2032e
commit a7360d5ad3
28 changed files with 279 additions and 108 deletions
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compiler/testdata/go1.21.ll
Vendored
+2 -2
View File
@@ -166,13 +166,13 @@ entry:
}
; Function Attrs: nounwind
define hidden void @main.clearMap(ptr dereferenceable_or_null(48) %m, ptr %context) unnamed_addr #1 {
define hidden void @main.clearMap(ptr dereferenceable_or_null(52) %m, ptr %context) unnamed_addr #1 {
entry:
call void @runtime.hashmapClear(ptr %m, ptr undef) #4
ret void
}
declare void @runtime.hashmapClear(ptr dereferenceable_or_null(48), ptr) #0
declare void @runtime.hashmapClear(ptr dereferenceable_or_null(52), ptr) #0
attributes #0 = { "target-features"="+bulk-memory,+bulk-memory-opt,+call-indirect-overlong,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
attributes #1 = { nounwind "target-features"="+bulk-memory,+bulk-memory-opt,+call-indirect-overlong,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
compiler/testdata/go1.27.ll
Vendored
+1 -1
View File
@@ -14,7 +14,7 @@ target triple = "wasm32-unknown-wasi"
@"main$string" = internal unnamed_addr constant [18 x i8] c"main.genericMethod", align 1
@"main$string.1" = internal unnamed_addr constant [7 x i8] c"Regular", align 1
@"pointer:named:main.genericMethod$methodset" = linkonce_odr unnamed_addr constant { i32, [1 x ptr], { ptr } } { i32 1, [1 x ptr] [ptr @"reflect/methods.Regular:func:{basic:int}{basic:int}"], { ptr } { ptr @"(*main.genericMethod).Regular" } }
@"reflect/types.type:struct:{}" = linkonce_odr constant { i8, i16, ptr, ptr, i32, i16, [0 x %runtime.structField] } { i8 90, i16 0, ptr @"reflect/types.type:pointer:struct:{}", ptr @"reflect/types.type.pkgpath.empty", i32 0, i16 0, [0 x %runtime.structField] zeroinitializer }, align 4
@"reflect/types.type:struct:{}" = linkonce_odr constant { i8, i16, ptr, ptr, i32, i16, ptr, [0 x %runtime.structField] } { i8 90, i16 0, ptr @"reflect/types.type:pointer:struct:{}", ptr @"reflect/types.type.pkgpath.empty", i32 0, i16 0, ptr inttoptr (i32 3 to ptr), [0 x %runtime.structField] zeroinitializer }, align 4
@"reflect/types.type.pkgpath.empty" = linkonce_odr unnamed_addr constant [1 x i8] zeroinitializer, align 1
@"reflect/types.type:pointer:struct:{}" = linkonce_odr constant { i8, i16, ptr } { i8 -43, i16 0, ptr @"reflect/types.type:struct:{}" }, align 4
@"named:main.genericMethod$methodset" = linkonce_odr unnamed_addr constant { i32, [1 x ptr], { ptr } } { i32 1, [1 x ptr] [ptr @"reflect/methods.Regular:func:{basic:int}{basic:int}"], { ptr } { ptr @"(main.genericMethod).Regular$invoke" } }
compiler/testdata/large.ll
Vendored
+5 -4
View File
@@ -9,6 +9,7 @@ target triple = "wasm32-unknown-wasi"
@"runtime/gc.layout:258-000000000000000000000000000000000000000000000000000000000000000002" = linkonce_odr unnamed_addr constant { i32, [33 x i8] } { i32 258, [33 x i8] c"\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\02" }
@"reflect/types.typeid:named:main.largeValue" = external constant i8
@"runtime.hashmapType:[1025]byte:[1025]byte" = linkonce_odr unnamed_addr constant { ptr, ptr, ptr } { ptr inttoptr (i32 3 to ptr), ptr inttoptr (i32 3 to ptr), ptr inttoptr (i32 67108137 to ptr) }
@llvm.used = appending global [15 x ptr] [ptr @"(main.largeReceiver).makeLargeValue", ptr @"(main.largeReceiver).readLargeValue", ptr @main.makeLargeValue, ptr @main.makeZeroLargeValue, ptr @main.readLargeValue, ptr @main.deferLargeValue, ptr @main.goLargeValue, ptr @main.makeLargeResults, ptr @main.makeTwoLargeResults, ptr @main.makeMixedLargeResults, ptr @main.chooseLargeValue, ptr @main.makePointerLargeValue, ptr @main.useLargeMap, ptr @main.useLargeChannel, ptr @main.selectLargeChannel]
@"main$string" = internal unnamed_addr constant [31 x i8] c"blocking select matched no case", align 1
@"main$pack" = internal unnamed_addr constant { %runtime._string } { %runtime._string { ptr @"main$string", i32 31 } }
@@ -350,7 +351,7 @@ declare void @llvm.memset.p0.i32(ptr nocapture writeonly, i8, i32, i1 immarg) #7
define hidden i8 @main.useLargeMap(ptr readonly dereferenceable_or_null(1025) %key, ptr readonly dereferenceable_or_null(1025) %value, ptr %context) unnamed_addr #1 {
entry:
%stackalloc = alloca i8, align 1
%0 = call ptr @runtime.hashmapMakeGeneric(i32 1025, i32 1025, i32 1, ptr null, ptr nonnull @runtime.hash32, ptr null, ptr nonnull @runtime.memequal, ptr undef) #9
%0 = call ptr @runtime.hashmapMakeGeneric(i32 1025, i32 1025, i32 1, ptr nonnull @"runtime.hashmapType:[1025]byte:[1025]byte", ptr null, ptr nonnull @runtime.hash32, ptr null, ptr nonnull @runtime.memequal, ptr undef) #9
call void @runtime.trackPointer(ptr %0, ptr nonnull %stackalloc, ptr undef) #9
call void @runtime.hashmapBinarySet(ptr %0, ptr %key, ptr %value, ptr undef) #9
%result = call align 1 dereferenceable(1025) ptr @runtime.alloc(i32 1025, ptr nonnull inttoptr (i32 3 to ptr), ptr undef) #9
@@ -381,11 +382,11 @@ declare i32 @runtime.hash32(ptr, i32, i32, ptr) #0
declare i1 @runtime.memequal(ptr, ptr, i32, ptr) #0
declare ptr @runtime.hashmapMakeGeneric(i32, i32, i32, ptr, ptr, ptr, ptr, ptr) #0
declare ptr @runtime.hashmapMakeGeneric(i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr) #0
declare void @runtime.hashmapBinarySet(ptr dereferenceable_or_null(48), ptr, ptr, ptr) #0
declare void @runtime.hashmapBinarySet(ptr dereferenceable_or_null(52), ptr, ptr, ptr) #0
declare i1 @runtime.hashmapBinaryGet(ptr dereferenceable_or_null(48), ptr, ptr, i32, ptr) #0
declare i1 @runtime.hashmapBinaryGet(ptr dereferenceable_or_null(52), ptr, ptr, i32, ptr) #0
; Function Attrs: nounwind
define hidden i8 @main.useLargeChannel(ptr dereferenceable_or_null(36) %ch, ptr readonly dereferenceable_or_null(1025) %value, ptr %context) unnamed_addr #1 {
compiler/testdata/zeromap.ll
Vendored
+16 -10
View File
@@ -6,6 +6,12 @@ target triple = "wasm32-unknown-wasi"
%main.hasPadding = type { i1, i32, i1 }
%runtime._string = type { ptr, i32 }
@"runtime/gc.layout:44-545555550500" = linkonce_odr unnamed_addr constant { i32, [6 x i8] } { i32 44, [6 x i8] c"TUUU\05\00" }
@"runtime.hashmapType:struct{string; string}:int" = linkonce_odr unnamed_addr constant { ptr, ptr, ptr } { ptr inttoptr (i32 329 to ptr), ptr inttoptr (i32 3 to ptr), ptr @"runtime/gc.layout:44-545555550500" }
@"runtime.hashmapType:[2]string:int" = linkonce_odr unnamed_addr constant { ptr, ptr, ptr } { ptr inttoptr (i32 69 to ptr), ptr inttoptr (i32 3 to ptr), ptr @"runtime/gc.layout:44-545555550500" }
@"runtime/gc.layout:92-545555555555555555550500" = linkonce_odr unnamed_addr constant { i32, [12 x i8] } { i32 92, [12 x i8] c"TUUUUUUUUU\05\00" }
@"runtime.hashmapType:[5]string:int" = linkonce_odr unnamed_addr constant { ptr, ptr, ptr } { ptr inttoptr (i32 69 to ptr), ptr inttoptr (i32 3 to ptr), ptr @"runtime/gc.layout:92-545555555555555555550500" }
declare void @runtime.trackPointer(ptr nocapture readonly, ptr, ptr) #0
; Function Attrs: nounwind
@@ -15,7 +21,7 @@ entry:
}
; Function Attrs: noinline nounwind
define hidden i32 @main.testZeroGet(ptr dereferenceable_or_null(48) %m, i1 %s.b1, i32 %s.i, i1 %s.b2, ptr %context) unnamed_addr #2 {
define hidden i32 @main.testZeroGet(ptr dereferenceable_or_null(52) %m, i1 %s.b1, i32 %s.i, i1 %s.b2, ptr %context) unnamed_addr #2 {
entry:
%hashmap.key = alloca %main.hasPadding, align 8
%hashmap.value = alloca i32, align 4
@@ -35,13 +41,13 @@ entry:
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(ptr nocapture) #3
declare i1 @runtime.hashmapGenericGet(ptr dereferenceable_or_null(48), ptr nocapture, ptr nocapture, i32, ptr) #0
declare i1 @runtime.hashmapGenericGet(ptr dereferenceable_or_null(52), ptr nocapture, ptr nocapture, i32, ptr) #0
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(ptr nocapture) #3
; Function Attrs: noinline nounwind
define hidden void @main.testZeroSet(ptr dereferenceable_or_null(48) %m, i1 %s.b1, i32 %s.i, i1 %s.b2, ptr %context) unnamed_addr #2 {
define hidden void @main.testZeroSet(ptr dereferenceable_or_null(52) %m, i1 %s.b1, i32 %s.i, i1 %s.b2, ptr %context) unnamed_addr #2 {
entry:
%hashmap.key = alloca %main.hasPadding, align 8
%hashmap.value = alloca i32, align 4
@@ -58,10 +64,10 @@ entry:
ret void
}
declare void @runtime.hashmapGenericSet(ptr dereferenceable_or_null(48), ptr nocapture, ptr nocapture, ptr) #0
declare void @runtime.hashmapGenericSet(ptr dereferenceable_or_null(52), ptr nocapture, ptr nocapture, ptr) #0
; Function Attrs: noinline nounwind
define hidden i32 @main.testZeroArrayGet(ptr dereferenceable_or_null(48) %m, [2 x %main.hasPadding] %s, ptr %context) unnamed_addr #2 {
define hidden i32 @main.testZeroArrayGet(ptr dereferenceable_or_null(52) %m, [2 x %main.hasPadding] %s, ptr %context) unnamed_addr #2 {
entry:
%hashmap.key = alloca [2 x %main.hasPadding], align 8
%hashmap.value = alloca i32, align 4
@@ -80,7 +86,7 @@ entry:
}
; Function Attrs: noinline nounwind
define hidden void @main.testZeroArraySet(ptr dereferenceable_or_null(48) %m, [2 x %main.hasPadding] %s, ptr %context) unnamed_addr #2 {
define hidden void @main.testZeroArraySet(ptr dereferenceable_or_null(52) %m, [2 x %main.hasPadding] %s, ptr %context) unnamed_addr #2 {
entry:
%hashmap.key = alloca [2 x %main.hasPadding], align 8
%hashmap.value = alloca i32, align 4
@@ -102,7 +108,7 @@ entry:
define hidden ptr @main.makeStringStructMap(ptr %context) unnamed_addr #2 {
entry:
%stackalloc = alloca i8, align 1
%0 = call ptr @runtime.hashmapMakeGeneric(i32 16, i32 4, i32 8, ptr null, ptr nonnull @"hashmapKeyHash.struct{string; string}", ptr null, ptr nonnull @"hashmapKeyEqual.struct{string; string}", ptr undef) #4
%0 = call ptr @runtime.hashmapMakeGeneric(i32 16, i32 4, i32 8, ptr nonnull @"runtime.hashmapType:struct{string; string}:int", ptr null, ptr nonnull @"hashmapKeyHash.struct{string; string}", ptr null, ptr nonnull @"hashmapKeyEqual.struct{string; string}", ptr undef) #4
call void @runtime.trackPointer(ptr %0, ptr nonnull %stackalloc, ptr undef) #4
ret ptr %0
}
@@ -145,13 +151,13 @@ entry:
declare i1 @runtime.stringEqual(ptr readonly, i32, ptr readonly, i32, ptr) #0
declare ptr @runtime.hashmapMakeGeneric(i32, i32, i32, ptr, ptr, ptr, ptr, ptr) #0
declare ptr @runtime.hashmapMakeGeneric(i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr) #0
; Function Attrs: noinline nounwind
define hidden ptr @main.makeShortStringArrayMap(ptr %context) unnamed_addr #2 {
entry:
%stackalloc = alloca i8, align 1
%0 = call ptr @runtime.hashmapMakeGeneric(i32 16, i32 4, i32 8, ptr null, ptr nonnull @"hashmapKeyHash.[2]string", ptr null, ptr nonnull @"hashmapKeyEqual.[2]string", ptr undef) #4
%0 = call ptr @runtime.hashmapMakeGeneric(i32 16, i32 4, i32 8, ptr nonnull @"runtime.hashmapType:[2]string:int", ptr null, ptr nonnull @"hashmapKeyHash.[2]string", ptr null, ptr nonnull @"hashmapKeyEqual.[2]string", ptr undef) #4
call void @runtime.trackPointer(ptr %0, ptr nonnull %stackalloc, ptr undef) #4
ret ptr %0
}
@@ -194,7 +200,7 @@ entry:
define hidden ptr @main.makeLongStringArrayMap(ptr %context) unnamed_addr #2 {
entry:
%stackalloc = alloca i8, align 1
%0 = call ptr @runtime.hashmapMakeGeneric(i32 40, i32 4, i32 8, ptr null, ptr nonnull @"hashmapKeyHash.[5]string", ptr null, ptr nonnull @"hashmapKeyEqual.[5]string", ptr undef) #4
%0 = call ptr @runtime.hashmapMakeGeneric(i32 40, i32 4, i32 8, ptr nonnull @"runtime.hashmapType:[5]string:int", ptr null, ptr nonnull @"hashmapKeyHash.[5]string", ptr null, ptr nonnull @"hashmapKeyEqual.[5]string", ptr undef) #4
call void @runtime.trackPointer(ptr %0, ptr nonnull %stackalloc, ptr undef) #4
ret ptr %0
}