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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt < %s -S -passes=licm | FileCheck %s
; See https://discourse.llvm.org/t/rfc-dont-merge-memory-locations-in-aliassettracker/73336
; pairwise TBAA indicates NoAlias of load/store ptr at %s with store i32 at %0
; yet LICM fails to promote load/store ptr %s out of the loop
define void @_Z4testP1S(ptr %s) {
; CHECK-LABEL: define void @_Z4testP1S(
; CHECK-SAME: ptr [[S:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[S_PROMOTED:%.*]] = load ptr, ptr [[S]], align 4, !tbaa [[TBAA0:![0-9]+]]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.cond.cleanup:
; CHECK-NEXT: [[ADD_PTR_I_LCSSA:%.*]] = phi ptr [ [[ADD_PTR_I:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: store ptr [[ADD_PTR_I_LCSSA]], ptr [[S]], align 4, !tbaa [[TBAA0]]
; CHECK-NEXT: ret void
; CHECK: for.body:
; CHECK-NEXT: [[ADD_PTR_I1:%.*]] = phi ptr [ [[S_PROMOTED]], [[ENTRY:%.*]] ], [ [[ADD_PTR_I]], [[FOR_BODY]] ]
; CHECK-NEXT: [[I_05:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: store i32 [[I_05]], ptr [[ADD_PTR_I1]], align 4, !tbaa [[TBAA4:![0-9]+]]
; CHECK-NEXT: [[ADD_PTR_I]] = getelementptr inbounds i32, ptr [[ADD_PTR_I1]], i32 1
; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_05]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i32 [[INC]], 100
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]]
;
entry:
br label %for.body
for.cond.cleanup: ; preds = %for.body
ret void
for.body: ; preds = %entry, %for.body
%i.05 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%0 = load ptr, ptr %s, align 4, !tbaa !0
store i32 %i.05, ptr %0, align 4, !tbaa !5
%add.ptr.i = getelementptr inbounds i32, ptr %0, i32 1
store ptr %add.ptr.i, ptr %s, align 4, !tbaa !7
%inc = add nuw nsw i32 %i.05, 1
%exitcond.not = icmp eq i32 %inc, 100
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
!0 = !{!1, !2, i64 0}
!1 = !{!"_ZTS1S", !2, i64 0}
!2 = !{!"any pointer", !3, i64 0}
!3 = !{!"omnipotent char", !4, i64 0}
!4 = !{!"Simple C++ TBAA"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !3, i64 0}
!7 = !{!2, !2, i64 0}
;.
; CHECK: [[TBAA0]] = !{[[META1:![0-9]+]], [[META1]], i64 0}
; CHECK: [[META1]] = !{!"any pointer", [[META2:![0-9]+]], i64 0}
; CHECK: [[META2]] = !{!"omnipotent char", [[META3:![0-9]+]], i64 0}
; CHECK: [[META3]] = !{!"Simple C++ TBAA"}
; CHECK: [[TBAA4]] = !{[[META5:![0-9]+]], [[META5]], i64 0}
; CHECK: [[META5]] = !{!"int", [[META2]], i64 0}
;.
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