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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -S -passes=loop-simplifycfg -verify-scev -verify-memoryssa < %s | FileCheck %s3 4; Verify that the scev information is still valid. Verification should not fail5 6define void @t_run_test() {7; CHECK-LABEL: @t_run_test(8; CHECK-NEXT: entry:9; CHECK-NEXT: br label %[[LOOP_PH:.*]]10; CHECK: [[LOOP_PH]]:11; CHECK-NEXT: br label %[[LOOP_BODY:.*]]12; CHECK: [[LOOP_BODY]]:13; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, %[[LOOP_PH]] ], [ [[INC:%.*]], %[[LOOP_BODY]] ]14; CHECK-NEXT: [[INC]] = add i32 [[IV]], 115; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[INC]], 1016; CHECK-NEXT: br i1 [[CMP]], label %[[LOOP_BODY]], label %[[EXIT:.*]]17; CHECK: [[EXIT]]:18; CHECK-NEXT: br label %[[LOOP_BODY2:.*]]19; CHECK: [[LOOP_BODY2]]:20; CHECK-NEXT: [[IV2:%.*]] = phi i32 [ 0, %[[EXIT]] ], [ [[INC2:%.*]], %[[LOOP_BODY2]] ]21; CHECK-NEXT: [[INC2]] = add i32 [[IV2]], 122; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[INC2]], 1023; CHECK-NEXT: br i1 [[CMP2]], label %[[LOOP_BODY2]], label %[[EXIT2:.*]]24; CHECK: [[EXIT2]]:25; CHECK-NEXT: ret void26;27entry:28 br label %loop.ph29 30loop.ph:31 br label %loop.header32 33loop.header:34 %iv = phi i32 [0, %loop.ph], [%inc, %loop.body]35 br label %loop.body136 37loop.body1:38 br label %loop.body39 40loop.body:41 %inc = add i32 %iv, 142 %cmp = icmp ult i32 %inc, 1043 br i1 %cmp, label %loop.header, label %exit44 45exit:46 br label %loop.body247 48loop.body2:49 %iv2 = phi i32 [0, %exit], [%inc2, %loop.body2]50 %inc2 = add i32 %iv2, 151 %cmp2 = icmp ult i32 %inc2, 1052 br i1 %cmp2, label %loop.body2, label %exit253 54exit2:55 ret void56}57 58