45 lines
1.2 KiB
LLVM
45 lines
1.2 KiB
LLVM
; RUN: opt -scoped-noalias-aa -basic-aa -gvn -S < %s | FileCheck %s
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define i32 @test1(i32* %p, i32* %q) {
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; CHECK-LABEL: @test1(i32* %p, i32* %q)
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; CHECK: load i32, i32* %p
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; CHECK-NOT: noalias
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; CHECK: %c = add i32 %a, %a
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%a = load i32, i32* %p, !noalias !3
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%b = load i32, i32* %p
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%c = add i32 %a, %b
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ret i32 %c
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}
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define i32 @test2(i32* %p, i32* %q) {
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; CHECK-LABEL: @test2(i32* %p, i32* %q)
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; CHECK: load i32, i32* %p, align 4, !alias.scope ![[SCOPE1:[0-9]+]]
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; CHECK: %c = add i32 %a, %a
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%a = load i32, i32* %p, !alias.scope !3
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%b = load i32, i32* %p, !alias.scope !3
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%c = add i32 %a, %b
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ret i32 %c
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}
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define i32 @test3(i32* %p, i32* %q) {
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; CHECK-LABEL: @test3(i32* %p, i32* %q)
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; CHECK: load i32, i32* %p, align 4, !alias.scope ![[SCOPE2:[0-9]+]]
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; CHECK: %c = add i32 %a, %a
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%a = load i32, i32* %p, !alias.scope !4
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%b = load i32, i32* %p, !alias.scope !5
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%c = add i32 %a, %b
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ret i32 %c
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}
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; CHECK: ![[SCOPE1]] = !{!{{[0-9]+}}}
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; CHECK: ![[SCOPE2]] = !{!{{[0-9]+}}, !{{[0-9]+}}}
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declare i32 @foo(i32*) readonly
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!0 = distinct !{!0, !2, !"callee0: %a"}
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!1 = distinct !{!1, !2, !"callee0: %b"}
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!2 = distinct !{!2, !"callee0"}
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!3 = !{!0}
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!4 = !{!1}
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!5 = !{!0, !1}
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