forked from OSchip/llvm-project
55 lines
1.9 KiB
LLVM
55 lines
1.9 KiB
LLVM
; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
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; CHECK: Function: t1
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; CHECK: NoAlias: i32* %gep1, i32* %gep2
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define void @t1([8 x i32]* %p, i32 %addend, i32* %q) {
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%knownnonzero = load i32, i32* %q, !range !0
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%add = add nsw nuw i32 %addend, %knownnonzero
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%gep1 = getelementptr [8 x i32], [8 x i32]* %p, i32 2, i32 %addend
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%gep2 = getelementptr [8 x i32], [8 x i32]* %p, i32 2, i32 %add
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ret void
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}
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; CHECK: Function: t2
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; CHECK: MayAlias: i32* %gep1, i32* %gep2
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define void @t2([8 x i32]* %p, i32 %addend, i32* %q) {
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%knownnonzero = load i32, i32* %q, !range !0
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%add = add nsw nuw i32 %addend, %knownnonzero
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%gep1 = getelementptr [8 x i32], [8 x i32]* %p, i32 1, i32 %addend
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%gep2 = getelementptr [8 x i32], [8 x i32]* %p, i32 0, i32 %add
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ret void
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}
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; CHECK: Function: t3
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; CHECK: MustAlias: i32* %gep1, i32* %gep2
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define void @t3([8 x i32]* %p, i32 %addend, i32* %q) {
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%knownnonzero = load i32, i32* %q, !range !0
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%add = add nsw nuw i32 %addend, %knownnonzero
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%gep1 = getelementptr [8 x i32], [8 x i32]* %p, i32 0, i32 %add
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%gep2 = getelementptr [8 x i32], [8 x i32]* %p, i32 0, i32 %add
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ret void
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}
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; CHECK: Function: t4
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; CHECK: MayAlias: i32* %gep1, i32* %gep2
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define void @t4([8 x i32]* %p, i32 %addend, i32* %q) {
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%knownnonzero = load i32, i32* %q, !range !0
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%add = add nsw nuw i32 %addend, %knownnonzero
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%gep1 = getelementptr [8 x i32], [8 x i32]* %p, i32 1, i32 %addend
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%gep2 = getelementptr [8 x i32], [8 x i32]* %p, i32 %add, i32 %add
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ret void
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}
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; CHECK: Function: t5
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; CHECK: MayAlias: i32* %gep2, i64* %bc
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define void @t5([8 x i32]* %p, i32 %addend, i32* %q) {
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%knownnonzero = load i32, i32* %q, !range !0
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%add = add nsw nuw i32 %addend, %knownnonzero
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%gep1 = getelementptr [8 x i32], [8 x i32]* %p, i32 2, i32 %addend
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%gep2 = getelementptr [8 x i32], [8 x i32]* %p, i32 2, i32 %add
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%bc = bitcast i32* %gep1 to i64*
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ret void
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}
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!0 = !{ i32 1, i32 5 }
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