1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -S -passes=loop-deletion < %s | FileCheck %s
4 ; Make sure this does not crash due to incorrect SCEV invalidation (PR49967).
9 ; CHECK-NEXT: br label [[VECTOR_PH:%.*]]
11 ; CHECK-NEXT: br label [[FOR_BODY63:%.*]]
12 ; CHECK: for.cond.cleanup62:
13 ; CHECK-NEXT: br label [[FOR_BODY151_PREHEADER:%.*]]
14 ; CHECK: for.body151.preheader:
15 ; CHECK-NEXT: br label [[FOR_COND_CLEANUP150_LOOPEXIT:%.*]]
17 ; CHECK-NEXT: [[I58_010:%.*]] = phi i16 [ 32, [[VECTOR_PH]] ]
18 ; CHECK-NEXT: store i16 undef, ptr undef, align 1
19 ; CHECK-NEXT: [[INC89:%.*]] = add nuw nsw i16 [[I58_010]], 1
20 ; CHECK-NEXT: [[EXITCOND12_NOT:%.*]] = icmp eq i16 [[INC89]], 33
21 ; CHECK-NEXT: br label [[FOR_COND_CLEANUP62:%.*]]
22 ; CHECK: for.cond.cleanup150.loopexit:
23 ; CHECK-NEXT: unreachable
28 vector.ph: ; preds = %for.cond.cleanup62, %entry
31 for.cond.cleanup62: ; preds = %for.body63
32 br i1 true, label %for.body151.preheader, label %vector.ph
34 for.body151.preheader: ; preds = %for.cond.cleanup62
37 for.body63: ; preds = %for.body63, %vector.ph
38 %i58.010 = phi i16 [ 32, %vector.ph ], [ %inc89, %for.body63 ]
39 store i16 undef, ptr undef, align 1
40 %inc89 = add nuw nsw i16 %i58.010, 1
41 %exitcond12.not = icmp eq i16 %inc89, 33
42 br i1 %exitcond12.not, label %for.cond.cleanup62, label %for.body63
44 for.cond.cleanup150.loopexit: ; preds = %for.body151
47 for.body151: ; preds = %for.body151.preheader, %for.body151
48 %i146.29 = phi i16 [ %inc177, %for.body151 ], [ undef, %for.body151.preheader ]
49 %inc177 = add nuw nsw i16 %i146.29, 1
50 %exitcond.not = icmp eq i16 %inc177, 32
51 br i1 %exitcond.not, label %for.cond.cleanup150.loopexit, label %for.body151