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Local: Handle noalias.addrspace in copyMetadataForLoad #103939

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Merged
merged 2 commits into from
Oct 9, 2024
Merged

Local: Handle noalias.addrspace in copyMetadataForLoad #103939

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b655b4c
Local: Handle noalias.addrspace in copyMetadataForLoad
arsenm Aug 14, 2024
aa83583
Fix test comment
arsenm Oct 9, 2024
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1 change: 1 addition & 0 deletions llvm/lib/Transforms/Utils/Local.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3474,6 +3474,7 @@ void llvm::copyMetadataForLoad(LoadInst &Dest, const LoadInst &Source) {
case LLVMContext::MD_mem_parallel_loop_access:
case LLVMContext::MD_access_group:
case LLVMContext::MD_noundef:
case LLVMContext::MD_noalias_addrspace:
// All of these directly apply.
Dest.setMetadata(ID, N);
break;
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4 changes: 2 additions & 2 deletions llvm/test/Transforms/InstCombine/loadstore-metadata.ll
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Expand Up @@ -174,10 +174,10 @@ define i32 @test_load_cast_combine_noundef(ptr %ptr) {
}

define i32 @test_load_cast_combine_noalias_addrspace(ptr %ptr) {
; Ensure (cast (load (...))) -> (load (cast (...))) preserves TBAA.
; Ensure (cast (load (...))) -> (load (cast (...))) preserves noalias.addrspace.
; CHECK-LABEL: @test_load_cast_combine_noalias_addrspace(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[L1:%.*]] = load i32, ptr [[PTR:%.*]], align 4
; CHECK-NEXT: [[L1:%.*]] = load i32, ptr [[PTR:%.*]], align 4, !noalias.addrspace [[META10:![0-9]+]]
; CHECK-NEXT: ret i32 [[L1]]
;
entry:
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