forked from OSchip/llvm-project
24 lines
857 B
LLVM
24 lines
857 B
LLVM
; This testcase ensures that CFL AA answers queries soundly when callee tries
|
|
; to return one of its parameters
|
|
|
|
; RUN: opt < %s -disable-basicaa -cfl-steens-aa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
|
|
; RUN: opt < %s -aa-pipeline=cfl-steens-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
|
|
|
|
define i32* @return_arg_callee(i32* %arg1, i32* %arg2) {
|
|
ret i32* %arg1
|
|
}
|
|
; CHECK-LABEL: Function: test_return_arg
|
|
; CHECK: NoAlias: i32* %a, i32* %b
|
|
; CHECK: MayAlias: i32* %a, i32* %c
|
|
; CHECK: NoAlias: i32* %b, i32* %c
|
|
|
|
; Temporarily disable modref checks
|
|
; NoModRef: Ptr: i32* %b <-> %c = call i32* @return_arg_callee(i32* %a, i32* %b)
|
|
define void @test_return_arg() {
|
|
%a = alloca i32, align 4
|
|
%b = alloca i32, align 4
|
|
|
|
%c = call i32* @return_arg_callee(i32* %a, i32* %b)
|
|
|
|
ret void
|
|
} |