mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
37 lines
1.1 KiB
LLVM
37 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -basicaa -scoped-noalias -memcpyopt -S %s | FileCheck %s
|
|
|
|
%T = type { i8, i32 }
|
|
|
|
; memcpy(%d, %a) should not be generated since store2 may-aliases load %a.
|
|
define void @f(%T* %a, %T* %b, %T* %c, %T* %d) {
|
|
; CHECK-LABEL: @f(
|
|
; CHECK-NEXT: [[VAL:%.*]] = load %T, %T* %a, !alias.scope !0
|
|
; CHECK-NEXT: store %T { i8 23, i32 23 }, %T* %b, !alias.scope !3
|
|
; CHECK-NEXT: store %T { i8 44, i32 44 }, %T* %c, !alias.scope !6, !noalias !3
|
|
; CHECK-NEXT: store %T [[VAL]], %T* %d, !alias.scope !9, !noalias !12
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%val = load %T, %T* %a, !alias.scope !{!10}
|
|
|
|
; store1 may-aliases the load
|
|
store %T { i8 23, i32 23 }, %T* %b, !alias.scope !{!11}
|
|
|
|
; store2 may-aliases the load and store3
|
|
store %T { i8 44, i32 44 }, %T* %c, !alias.scope !{!12}, !noalias !{!11}
|
|
|
|
; store3
|
|
store %T %val, %T* %d, !alias.scope !{!13}, !noalias !{!10, !11}
|
|
ret void
|
|
}
|
|
|
|
!0 = !{!0}
|
|
!1 = !{!1}
|
|
!2 = !{!2}
|
|
!3 = !{!3}
|
|
|
|
!10 = !{ !10, !0 }
|
|
!11 = !{ !11, !1 }
|
|
!12 = !{ !12, !2 }
|
|
!13 = !{ !13, !3 }
|