llvm/test/Transforms/NewGVN/noalias.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt -passes=newgvn -S < %s | FileCheck %s

define i32 @test1(ptr %p, ptr %q) {
; CHECK-LABEL: define i32 @test1(
; CHECK-SAME: ptr [[P:%.*]], ptr [[Q:%.*]]) {
; CHECK-NEXT:    [[A:%.*]] = load i32, ptr [[P]], align 4, !noalias [[META0:![0-9]+]]
; CHECK-NEXT:    [[C:%.*]] = add i32 [[A]], [[A]]
; CHECK-NEXT:    ret i32 [[C]]
;
  %a = load i32, ptr %p, !noalias !3
  %b = load i32, ptr %p
  %c = add i32 %a, %b
  ret i32 %c
}

define i32 @test2(ptr %p, ptr %q) {
; CHECK-LABEL: define i32 @test2(
; CHECK-SAME: ptr [[P:%.*]], ptr [[Q:%.*]]) {
; CHECK-NEXT:    [[A:%.*]] = load i32, ptr [[P]], align 4, !alias.scope [[META0]]
; CHECK-NEXT:    [[C:%.*]] = add i32 [[A]], [[A]]
; CHECK-NEXT:    ret i32 [[C]]
;
  %a = load i32, ptr %p, !alias.scope !3
  %b = load i32, ptr %p, !alias.scope !3
  %c = add i32 %a, %b
  ret i32 %c
}

define i32 @test3(ptr %p, ptr %q) {
; CHECK-LABEL: define i32 @test3(
; CHECK-SAME: ptr [[P:%.*]], ptr [[Q:%.*]]) {
; CHECK-NEXT:    [[A:%.*]] = load i32, ptr [[P]], align 4, !alias.scope [[META3:![0-9]+]]
; CHECK-NEXT:    [[C:%.*]] = add i32 [[A]], [[A]]
; CHECK-NEXT:    ret i32 [[C]]
;
  %a = load i32, ptr %p, !alias.scope !4
  %b = load i32, ptr %p, !alias.scope !5
  %c = add i32 %a, %b
  ret i32 %c
}

declare i32 @foo(ptr) readonly

!0 = distinct !{!0, !2, !"callee0: %a"}
!1 = distinct !{!1, !2, !"callee0: %b"}
!2 = distinct !{!2, !"callee0"}

!3 = !{!0}
!4 = !{!1}
!5 = !{!0, !1}
;.
; CHECK: [[META0]] = !{[[META1:![0-9]+]]}
; CHECK: [[META1]] = distinct !{[[META1]], [[META2:![0-9]+]], !"callee0: %a"}
; CHECK: [[META2]] = distinct !{[[META2]], !"callee0"}
; CHECK: [[META3]] = !{[[META4:![0-9]+]]}
; CHECK: [[META4]] = distinct !{[[META4]], [[META2]], !"callee0: %b"}
;.