71 lines
2.6 KiB
LLVM
71 lines
2.6 KiB
LLVM
|
; RUN: opt %s -S -scoped-noalias-aa -enable-mssa-loop-dependency=true -licm | FileCheck %s
|
||
|
|
|
||
|
|
define i16 @main(i1 %a_b_mayalias, i16* %a, i16* %b) {
|
||
|
|
; CHECK: scalar.body:
|
||
|
|
; CHECK-NEXT: [[J:%.*]] = phi i64
|
||
|
|
; CHECK-NEXT: [[TMP3:%.*]] = load i16
|
||
|
|
; CHECK-NEXT: [[RESULT:%.*]] = add i16 [[TMP3]], 1
|
||
|
|
; CHECK-NEXT: store i16 [[RESULT]]
|
||
|
|
|
||
|
|
entry:
|
||
|
|
br label %outer
|
||
|
|
|
||
|
|
outer: ; preds = %scalar.cleanup, %entry
|
||
|
|
; 4 = MemoryPhi({entry,liveOnEntry},{scalar.cleanup,2})
|
||
|
|
%i = phi i16 [ 0, %entry ], [ %i.next, %scalar.cleanup ]
|
||
|
|
br i1 %a_b_mayalias, label %scalar.ph, label %vector.ph
|
||
|
|
|
||
|
|
vector.ph: ; preds = %outer
|
||
|
|
; MemoryUse(4) MayAlias
|
||
|
|
%tmp1 = load i16, i16* %a, align 1, !alias.scope !0, !tbaa !7
|
||
|
|
%tmp2 = add i16 %tmp1, 1
|
||
|
|
; 1 = MemoryDef(4)
|
||
|
|
store i16 %tmp2, i16* %b, align 1, !alias.scope !3, !noalias !0, !tbaa !7
|
||
|
|
br label %vector.body
|
||
|
|
|
||
|
|
vector.body: ; preds = %vector.body, %vector.ph
|
||
|
|
%index = phi i64 [ %index.next, %vector.body ], [ 0, %vector.ph ]
|
||
|
|
%index.next = add i64 %index, 1
|
||
|
|
%cmp1 = icmp eq i64 %index.next, 16
|
||
|
|
br i1 %cmp1, label %middle.block, label %vector.body
|
||
|
|
|
||
|
|
middle.block: ; preds = %vector.body
|
||
|
|
br label %scalar.ph
|
||
|
|
|
||
|
|
scalar.ph: ; preds = %middle.block, %outer
|
||
|
|
; 5 = MemoryPhi({outer,4},{middle.block,1})
|
||
|
|
%j.start = phi i64 [ 0, %outer ], [ 16, %middle.block ]
|
||
|
|
br label %scalar.body
|
||
|
|
|
||
|
|
scalar.body: ; preds = %scalar.body, %scalar.ph
|
||
|
|
; 3 = MemoryPhi({scalar.ph,5},{scalar.body,2})
|
||
|
|
%j = phi i64 [ %j.next, %scalar.body ], [ %j.start, %scalar.ph ]
|
||
|
|
; MemoryUse(3) MayAlias
|
||
|
|
%tmp3 = load i16, i16* %a, align 1, !tbaa !7
|
||
|
|
%result = add i16 %tmp3, 1
|
||
|
|
; 2 = MemoryDef(3)
|
||
|
|
store i16 %result, i16* %b, align 1, !tbaa !7
|
||
|
|
%j.next = add nuw nsw i64 %j, 1
|
||
|
|
%cmp2 = icmp ult i64 %j.next, 20
|
||
|
|
br i1 %cmp2, label %scalar.body, label %scalar.cleanup
|
||
|
|
|
||
|
|
scalar.cleanup: ; preds = %scalar.body
|
||
|
|
%result.lcssa = phi i16 [ %result, %scalar.body ]
|
||
|
|
%i.next = add nuw nsw i16 %i, 1
|
||
|
|
%exitcond = icmp eq i16 %i.next, 10
|
||
|
|
br i1 %exitcond, label %exit.block, label %outer
|
||
|
|
|
||
|
|
exit.block: ; preds = %scalar.cleanup
|
||
|
|
%result.lcssa.lcssa = phi i16 [ %result.lcssa, %scalar.cleanup ]
|
||
|
|
ret i16 %result.lcssa.lcssa
|
||
|
|
}
|
||
|
|
|
||
|
|
!0 = !{!1}
|
||
|
|
!1 = distinct !{!1, !2}
|
||
|
|
!2 = distinct !{!2, !"LVerDomain"}
|
||
|
|
!3 = !{!4}
|
||
|
|
!4 = distinct !{!4, !2}
|
||
|
|
!5 = !{!"Simple C++ TBAA"}
|
||
|
|
!6 = !{!"omnipotent char", !5, i64 0}
|
||
|
|
!7 = !{!6, !6, i64 0}
|