forked from OSchip/llvm-project
27 lines
688 B
LLVM
27 lines
688 B
LLVM
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; This testcase ensures that CFL AA gives conservative answers on variables
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; that involve arguments.
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; RUN: opt < %s -cfl-aa -aa-eval -print-may-aliases -disable-output 2>&1 | FileCheck %s
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; CHECK: Function: test
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; CHECK: 4 Total Alias Queries Performed
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; CHECK: 3 no alias responses
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; ^ The 1 MayAlias is due to %arg1. Sadly, we don't currently have machinery
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; in place to check whether %arg1 aliases %a, because BasicAA takes care of
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; that for us.
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define i32* @test2(i32* %arg1) {
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store i32 0, i32* %arg1
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%a = alloca i32, align 4
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ret i32* %a
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}
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define void @test() {
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%a = alloca i32, align 4
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%b = alloca i32, align 4
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%c = call i32* @test2(i32* %a)
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ret void
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}
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