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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/zeromap.ll
Vendored
+20 -24
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@@ -5,19 +5,16 @@ target triple = "wasm32-unknown-wasi"
%main.hasPadding = type { i1, i32, i1 }
; 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: 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 #3 {
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 {
entry:
%hashmap.key = alloca %main.hasPadding, align 8
%hashmap.value = alloca i32, align 4
@@ -27,7 +24,7 @@ entry:
call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %hashmap.value)
call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %hashmap.key)
store %main.hasPadding %2, ptr %hashmap.key, align 4
%3 = call i1 @runtime.hashmapGenericGet(ptr %m, ptr nonnull %hashmap.key, ptr nonnull %hashmap.value, i32 4, ptr undef) #5
%3 = call i1 @runtime.hashmapGenericGet(ptr %m, ptr nonnull %hashmap.key, ptr nonnull %hashmap.value, i32 4, ptr undef) #4
call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %hashmap.key)
%4 = load i32, ptr %hashmap.value, align 4
call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %hashmap.value)
@@ -35,15 +32,15 @@ entry:
}
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3
declare i1 @runtime.hashmapGenericGet(ptr dereferenceable_or_null(48), ptr nocapture, ptr nocapture, i32, ptr) #1
declare i1 @runtime.hashmapGenericGet(ptr dereferenceable_or_null(48), ptr nocapture, ptr nocapture, i32, ptr) #0
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #4
declare void @llvm.lifetime.end.p0(i64 immarg, 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 #3 {
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 {
entry:
%hashmap.key = alloca %main.hasPadding, align 8
%hashmap.value = alloca i32, align 4
@@ -54,16 +51,16 @@ entry:
store i32 5, ptr %hashmap.value, align 4
call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %hashmap.key)
store %main.hasPadding %2, ptr %hashmap.key, align 4
call void @runtime.hashmapGenericSet(ptr %m, ptr nonnull %hashmap.key, ptr nonnull %hashmap.value, ptr undef) #5
call void @runtime.hashmapGenericSet(ptr %m, ptr nonnull %hashmap.key, ptr nonnull %hashmap.value, ptr undef) #4
call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %hashmap.key)
call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %hashmap.value)
ret void
}
declare void @runtime.hashmapGenericSet(ptr dereferenceable_or_null(48), ptr nocapture, ptr nocapture, ptr) #1
declare void @runtime.hashmapGenericSet(ptr dereferenceable_or_null(48), 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 #3 {
define hidden i32 @main.testZeroArrayGet(ptr dereferenceable_or_null(48) %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
@@ -74,7 +71,7 @@ entry:
%hashmap.key.repack1 = getelementptr inbounds nuw 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 = call i1 @runtime.hashmapGenericGet(ptr %m, ptr nonnull %hashmap.key, ptr nonnull %hashmap.value, i32 4, ptr undef) #5
%0 = call i1 @runtime.hashmapGenericGet(ptr %m, ptr nonnull %hashmap.key, ptr nonnull %hashmap.value, i32 4, ptr undef) #4
call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %hashmap.key)
%1 = load i32, ptr %hashmap.value, align 4
call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %hashmap.value)
@@ -82,7 +79,7 @@ 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 #3 {
define hidden void @main.testZeroArraySet(ptr dereferenceable_or_null(48) %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
@@ -94,21 +91,20 @@ entry:
%hashmap.key.repack1 = getelementptr inbounds nuw 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
call void @runtime.hashmapGenericSet(ptr %m, ptr nonnull %hashmap.key, ptr nonnull %hashmap.value, ptr undef) #5
call void @runtime.hashmapGenericSet(ptr %m, ptr nonnull %hashmap.key, ptr nonnull %hashmap.value, ptr undef) #4
call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %hashmap.key)
call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %hashmap.value)
ret void
}
; Function Attrs: nounwind
define hidden void @main.main(ptr %context) unnamed_addr #2 {
define hidden void @main.main(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 = { noinline nounwind "target-features"="+bulk-memory,+bulk-memory-opt,+call-indirect-overlong,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
attributes #4 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { 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 = { noinline nounwind "target-features"="+bulk-memory,+bulk-memory-opt,+call-indirect-overlong,+mutable-globals,+nontrapping-fptoint,+sign-ext,-multivalue,-reference-types" }
attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind }