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compiler: clean up pointer pack code

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This means runtime.alloc isn't allocated every time but instead only
when it is actually needed. It also just cleans up the compiler code a
little bit, and makes the next commit a bit nicer.
This commit is contained in:
Ayke van Laethem
2026-05-20 11:07:35 +02:00
committed by Ayke
parent da69f18e91
commit 7b486e398a
19 changed files with 380 additions and 429 deletions
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compiler/testdata/func.ll
Vendored
+11 -15
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@@ -3,48 +3,44 @@ source_filename = "func.go"
target datalayout = "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-i128:128-n32:64-S128-ni:1:10:20"
target triple = "wasm32-unknown-wasi"
; Function Attrs: allockind("alloc,zeroed") allocsize(0)
declare noalias nonnull ptr @runtime.alloc(i32, ptr, ptr) #0
declare void @runtime.trackPointer(ptr nocapture readonly, ptr, ptr) #1
declare void @runtime.trackPointer(ptr nocapture readonly, ptr, ptr) #0
; Function Attrs: nounwind
define hidden void @main.init(ptr %context) unnamed_addr #2 {
define hidden void @main.init(ptr %context) unnamed_addr #1 {
entry:
ret void
}
; Function Attrs: nounwind
define hidden void @main.foo(ptr %callback.context, ptr %callback.funcptr, ptr %context) unnamed_addr #2 {
define hidden void @main.foo(ptr %callback.context, ptr %callback.funcptr, ptr %context) unnamed_addr #1 {
entry:
%0 = icmp eq ptr %callback.funcptr, null
br i1 %0, label %fpcall.throw, label %fpcall.next
fpcall.next: ; preds = %entry
call void %callback.funcptr(i32 3, ptr %callback.context) #3
call void %callback.funcptr(i32 3, ptr %callback.context) #2
ret void
fpcall.throw: ; preds = %entry
call void @runtime.nilPanic(ptr undef) #3
call void @runtime.nilPanic(ptr undef) #2
unreachable
}
declare void @runtime.nilPanic(ptr) #1
declare void @runtime.nilPanic(ptr) #0
; Function Attrs: nounwind
define hidden void @main.bar(ptr %context) unnamed_addr #2 {
define hidden void @main.bar(ptr %context) unnamed_addr #1 {
entry:
call void @main.foo(ptr undef, ptr nonnull @main.someFunc, ptr undef)
ret void
}
; Function Attrs: nounwind
define hidden void @main.someFunc(i32 %arg0, ptr %context) unnamed_addr #2 {
define hidden void @main.someFunc(i32 %arg0, ptr %context) unnamed_addr #1 {
entry:
ret void
}
attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+bulk-memory-opt,+call-indirect-overlong,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
attributes #1 = { "target-features"="+bulk-memory,+bulk-memory-opt,+call-indirect-overlong,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
attributes #2 = { nounwind "target-features"="+bulk-memory,+bulk-memory-opt,+call-indirect-overlong,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
attributes #3 = { nounwind }
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" }
attributes #2 = { nounwind }