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83c8485899
`dropUnknownNonDebugMetadata` takes a list of "known" metadata IDs. The only reason it worked at all is that `getMetadataID` returns something unrelated -- it returns the subclass ID of the receiver (which is used in `dyn_cast` etc.). That does not numerically match `LLVMContext::MD_invariant_group` and ends up dropping `invariant_group` along with every other metadata that does not numerically match `LLVMContext::MD_invariant_group`. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289973 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
587 B
LLVM
25 lines
587 B
LLVM
; RUN: opt -codegenprepare -S < %s | FileCheck %s
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@tmp = global i8 0
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; CHECK-LABEL: define void @foo() {
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define void @foo() {
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enter:
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; CHECK-NOT: !invariant.group
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; CHECK-NOT: @llvm.invariant.group.barrier(
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; CHECK: %val = load i8, i8* @tmp, !tbaa
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%val = load i8, i8* @tmp, !invariant.group !0, !tbaa !{!1, !1, i64 0}
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%ptr = call i8* @llvm.invariant.group.barrier(i8* @tmp)
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; CHECK: store i8 42, i8* @tmp
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store i8 42, i8* %ptr, !invariant.group !0
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ret void
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}
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; CHECK-LABEL: }
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declare i8* @llvm.invariant.group.barrier(i8*)
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!0 = !{!"something"}
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!1 = !{!"x", !0}
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