llvm/test/Transforms/NewGVN/pr35074.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -newgvn -S | FileCheck %s

define void @sort(i64 %.16) {
; CHECK-LABEL: @sort(
; CHECK-NEXT:  Entry:
; CHECK-NEXT:    [[TMP0:%.*]] = extractvalue { i64, i1 } undef, 0
; CHECK-NEXT:    [[TMP1:%.*]] = lshr i64 [[TMP0]], 2
; CHECK-NEXT:    br i1 undef, label [[DIVZEROFAIL2_I:%.*]], label [[WHILEBODY_LR_PH:%.*]]
; CHECK:       DivZeroFail2.i:
; CHECK-NEXT:    unreachable
; CHECK:       WhileBody.lr.ph:
; CHECK-NEXT:    [[TMP2:%.*]] = udiv i64 [[DOT16:%.*]], [[TMP1]]
; CHECK-NEXT:    br label [[WHILEBODY:%.*]]
; CHECK:       WhileBody:
; CHECK-NEXT:    [[ITERATOR:%.*]] = phi i64 [ 0, [[WHILEBODY_LR_PH]] ], [ [[TMP6:%.*]], [[BOUNDSCHECKOK276:%.*]] ]
; CHECK-NEXT:    [[TMP3:%.*]] = tail call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[ITERATOR]], i64 [[TMP2]])
; CHECK-NEXT:    [[TMP4:%.*]] = extractvalue { i64, i1 } [[TMP3]], 0
; CHECK-NEXT:    [[TMP5:%.*]] = tail call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[TMP4]], i64 1)
; CHECK-NEXT:    [[TMP6]] = extractvalue { i64, i1 } [[TMP5]], 0
; CHECK-NEXT:    br i1 false, label [[BOUNDSCHECKFAIL275:%.*]], label [[BOUNDSCHECKOK276]]
; CHECK:       WhileEnd:
; CHECK-NEXT:    ret void
; CHECK:       BoundsCheckFail275:
; CHECK-NEXT:    unreachable
; CHECK:       BoundsCheckOk276:
; CHECK-NEXT:    [[TMP7:%.*]] = icmp ult i64 [[TMP6]], [[DOT16]]
; CHECK-NEXT:    br i1 [[TMP7]], label [[WHILEBODY]], label [[WHILEEND:%.*]]
;
Entry:
  %0 = extractvalue { i64, i1 } undef, 0
  %1 = lshr i64 %0, 2
  br i1 undef, label %DivZeroFail2.i, label %WhileBody.lr.ph

DivZeroFail2.i:                                   ; preds = %Entry
  unreachable

WhileBody.lr.ph:                                  ; preds = %Entry
  %2 = udiv i64 %.16, %1
  br label %WhileBody

WhileBody:                                        ; preds = %BoundsCheckOk276, %WhileBody.lr.ph
  %iterator = phi i64 [ 0, %WhileBody.lr.ph ], [ %6, %BoundsCheckOk276 ]
  %3 = tail call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 %iterator, i64 %2)
  %4 = extractvalue { i64, i1 } %3, 0
  %5 = tail call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 %4, i64 1)
  %6 = extractvalue { i64, i1 } %5, 0
  %7 = icmp ugt i64 %iterator, %.16
  br i1 %7, label %BoundsCheckFail275, label %BoundsCheckOk276

WhileEnd:                                         ; preds = %BoundsCheckOk276
  ret void

BoundsCheckFail275:                               ; preds = %WhileBody
  unreachable

BoundsCheckOk276:                                 ; preds = %WhileBody
  %8 = icmp ult i64 %6, %.16
  br i1 %8, label %WhileBody, label %WhileEnd
}

declare { i64, i1 } @llvm.uadd.with.overflow.i64(i64, i64)