llvm-6502/test/Analysis/CFLAliasAnalysis/basic-interproc-ret.ll

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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: 4 Total Alias Queries Performed
; CHECK: 3 no alias responses
; ^ The 1 MayAlias is due to %arg1. Sadly, we don't currently have machinery
; in place to check whether %arg1 aliases %a, because BasicAA takes care of
; that for us.
define i32* @test2(i32* %arg1) {
store i32 0, i32* %arg1
%a = alloca i32, align 4
ret i32* %a
}
define void @test() {
%a = alloca i32, align 4
%b = alloca i32, align 4
%c = call i32* @test2(i32* %a)
ret void
}