23 lines
656 B
LLVM
23 lines
656 B
LLVM
; This testcase ensures that CFL AA correctly handles simple memory alias
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; pattern
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; RUN: opt < %s -aa-pipeline=cfl-anders-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
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; CHECK-LABEL: Function: test_memalias
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; CHECK: NoAlias: i64* %a, i64** %b
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; CHECK: NoAlias: i64* %a, i32** %c
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; CHECK: MayAlias: i64* %a, i32* %d
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; CHECK: NoAlias: i64** %b, i32* %d
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; CHECK: NoAlias: i32** %c, i32* %d
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define void @test_memalias() {
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%a = alloca i64, align 8
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%b = alloca i64*, align 8
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load i64, i64* %a
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store i64* %a, i64** %b
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%c = bitcast i64** %b to i32**
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%d = load i32*, i32** %c
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load i32, i32* %d
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ret void
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}
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