34 lines
901 B
LLVM
34 lines
901 B
LLVM
; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info 2>&1 | FileCheck %s
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declare ptr @captures(ptr %cap) nounwind readonly
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; CHECK-LABEL: no
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; CHECK: NoAlias: i32* %a, i32* %b
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define void @no(ptr noalias %a, ptr %b) nounwind {
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entry:
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store i32 1, ptr %a
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%cap = call ptr @captures(ptr %a) nounwind readonly
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%l = load i32, ptr %b
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ret void
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}
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; CHECK-LABEL: yes
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; CHECK: MayAlias: i32* %c, i32* %d
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define void @yes(ptr %c, ptr %d) nounwind {
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entry:
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store i32 1, ptr %c
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%cap = call ptr @captures(ptr %c) nounwind readonly
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%l = load i32, ptr %d
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ret void
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}
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; Result should be the same for byval instead of noalias.
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; CHECK-LABEL: byval
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; CHECK: NoAlias: i32* %a, i32* %b
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define void @byval(ptr byval(i32) %a, ptr %b) nounwind {
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entry:
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store i32 1, ptr %a
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%cap = call ptr @captures(ptr %a) nounwind readonly
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%l = load i32, ptr %b
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ret void
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}
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