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a0dfc5a477
Summary: This intrinsic represents a label with a list of associated metadata strings. It is modelled as reading and writing inaccessible memory so that it won't be removed as dead code. I think the intention is that the annotation strings should appear at most once in the debug info, so I marked it noduplicate. We are allowed to inline code with annotations as long as we strip the annotation, but that can be done later. Reviewers: majnemer Subscribers: eraman, llvm-commits, hiraditya Differential Revision: https://reviews.llvm.org/D36904 llvm-svn: 312569
36 lines
843 B
LLVM
36 lines
843 B
LLVM
; Inlining should not clone label annotations.
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; Currently we block all duplication for simplicity.
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; RUN: opt < %s -S -inline | FileCheck %s
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@the_global = global i32 0
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declare void @llvm.codeview.annotation(metadata)
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define void @inlinee() {
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entry:
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store i32 42, i32* @the_global
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call void @llvm.codeview.annotation(metadata !0)
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ret void
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}
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define void @caller() {
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entry:
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call void @inlinee()
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ret void
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}
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!0 = !{!"annotation"}
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; CHECK-LABEL: define void @inlinee()
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; CHECK: store i32 42, i32* @the_global
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; CHECK: call void @llvm.codeview.annotation(metadata !0)
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; CHECK: ret void
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; CHECK-LABEL: define void @caller()
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; MSVC can inline this. If we ever do, check for the store but make sure
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; there is no annotation.
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; CHECK: call void @inlinee()
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; CHECK-NOT: call void @llvm.codeview.annotation
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; CHECK: ret void
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