File: basic-interproc.ll

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llvm-toolchain-3.7 1%3A3.7.1-5
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; This testcase ensures that CFL AA gives conservative answers on variables
; that involve arguments.

; RUN: opt < %s -cfl-aa -aa-eval -print-may-aliases -disable-output 2>&1 | FileCheck %s

; CHECK:     Function: test
; CHECK: 2 Total Alias Queries Performed
; CHECK: 1 no alias responses
; ^^ In @test2, %arg1 and %arg2 may alias

define void @test2(i32* %arg1, i32* %arg2) {
  store i32 0, i32* %arg1
  store i32 0, i32* %arg2

  ret void
}

define void @test() {
  %a = alloca i32, align 4
  %b = alloca i32, align 4
  call void @test2(i32* %a, i32* %b)

  ret void
}