forked from OSchip/llvm-project
34 lines
1.3 KiB
LLVM
34 lines
1.3 KiB
LLVM
; RUN: opt -aa-pipeline=basic-aa -passes=aa-eval -print-no-aliases -disable-output %s 2>&1 | FileCheck %s
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%struct = type <{ [20 x i64] }>
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; CHECK-LABEL: Function: test_noalias
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; CHECK-NEXT: NoAlias: %struct* %ptr1, i64* %ptr2
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; CHECK-NEXT: NoAlias: %struct* %addr.ptr, i64* %ptr2
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; CHECK-NEXT: NoAlias: i64* %gep, i64* %ptr2
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define void @test_noalias(%struct* noalias %ptr1, i64* %ptr2, i64 %offset) {
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entry:
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%addr.ptr = call %struct* @llvm.ptrmask.p0s_struct.p0s.struct.i64(%struct* %ptr1, i64 72057594037927928)
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load %struct, %struct* %ptr1
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load %struct, %struct* %addr.ptr
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store i64 10, i64* %ptr2
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%gep = getelementptr inbounds %struct, %struct* %addr.ptr, i64 0, i32 0, i64 %offset
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store i64 1, i64* %gep, align 8
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ret void
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}
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; CHECK-NEXT: Function: test_alias
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; CHECK-NOT: NoAlias
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define void @test_alias(%struct* %ptr1, i64* %ptr2, i64 %offset) {
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entry:
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%addr.ptr = call %struct* @llvm.ptrmask.p0s_struct.p0s.struct.i64(%struct* %ptr1, i64 72057594037927928)
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load %struct, %struct* %ptr1
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load %struct, %struct* %addr.ptr
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store i64 10, i64* %ptr2
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%gep = getelementptr inbounds %struct, %struct* %addr.ptr, i64 0, i32 0, i64 %offset
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store i64 1, i64* %gep, align 8
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ret void
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}
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declare %struct* @llvm.ptrmask.p0s_struct.p0s.struct.i64(%struct*, i64)
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