llvm-project/llvm/test/Analysis/CFLAliasAnalysis/basic-interproc.ll

25 lines
573 B
LLVM

; 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
}