llvm/test/Transforms/LoopVectorize/pr50686.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -S < %s | FileCheck %s

define void @m(ptr nocapture %p, ptr nocapture %p2, i32 %q) {
; CHECK-LABEL: @m(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ARRAYIDX9_1:%.*]] = getelementptr inbounds i32, ptr [[P2:%.*]], i64 1
; CHECK-NEXT:    [[ARRAYIDX9_2:%.*]] = getelementptr inbounds i32, ptr [[P2]], i64 2
; CHECK-NEXT:    br label [[VECTOR_MEMCHECK:%.*]]
; CHECK:       vector.memcheck:
; CHECK-NEXT:    [[UGLYGEP:%.*]] = getelementptr i8, ptr [[P:%.*]], i64 252
; CHECK-NEXT:    [[UGLYGEP1:%.*]] = getelementptr i8, ptr [[P2]], i64 12
; CHECK-NEXT:    [[BOUND0:%.*]] = icmp ult ptr [[P]], [[UGLYGEP1]]
; CHECK-NEXT:    [[BOUND1:%.*]] = icmp ult ptr [[P2]], [[UGLYGEP]]
; CHECK-NEXT:    [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
; CHECK-NEXT:    br i1 [[FOUND_CONFLICT]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK:       vector.ph:
; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[P2]], align 4, !alias.scope [[META0:![0-9]+]]
; CHECK-NEXT:    [[TMP1:%.*]] = sub nsw i32 0, [[TMP0]]
; CHECK-NEXT:    [[TMP2:%.*]] = load i32, ptr [[ARRAYIDX9_1]], align 4, !alias.scope [[META0]]
; CHECK-NEXT:    [[TMP3:%.*]] = sub nsw i32 [[TMP1]], [[TMP2]]
; CHECK-NEXT:    [[TMP4:%.*]] = load i32, ptr [[ARRAYIDX9_2]], align 4, !alias.scope [[META0]]
; CHECK-NEXT:    [[TMP5:%.*]] = sub nsw i32 [[TMP3]], [[TMP4]]
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT4:%.*]] = insertelement <4 x i32> poison, i32 [[TMP5]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT5:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT4]], <4 x i32> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
; CHECK:       vector.body:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i32, ptr [[P]], i64 [[INDEX]]
; CHECK-NEXT:    store <4 x i32> [[BROADCAST_SPLAT5]], ptr [[TMP7]], align 4, !alias.scope [[META3:![0-9]+]], !noalias [[META0]]
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 60
; CHECK-NEXT:    br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK:       middle.block:
; CHECK-NEXT:    br label [[SCALAR_PH]]
; CHECK:       scalar.ph:
; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 60, [[MIDDLE_BLOCK]] ], [ 0, [[VECTOR_MEMCHECK]] ]
; CHECK-NEXT:    br label [[FOR_COND5:%.*]]
; CHECK:       for.cond5:
; CHECK-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_COND5]] ]
; CHECK-NEXT:    [[I3:%.*]] = load i32, ptr [[P2]], align 4
; CHECK-NEXT:    [[SUB:%.*]] = sub nsw i32 0, [[I3]]
; CHECK-NEXT:    [[I4:%.*]] = load i32, ptr [[ARRAYIDX9_1]], align 4
; CHECK-NEXT:    [[SUB_1:%.*]] = sub nsw i32 [[SUB]], [[I4]]
; CHECK-NEXT:    [[I5:%.*]] = load i32, ptr [[ARRAYIDX9_2]], align 4
; CHECK-NEXT:    [[SUB_2:%.*]] = sub nsw i32 [[SUB_1]], [[I5]]
; CHECK-NEXT:    [[ARRAYIDX14:%.*]] = getelementptr inbounds i32, ptr [[P]], i64 [[INDVARS_IV]]
; CHECK-NEXT:    store i32 [[SUB_2]], ptr [[ARRAYIDX14]], align 4
; CHECK-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 63
; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR_END17:%.*]], label [[FOR_COND5]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK:       for.end17:
; CHECK-NEXT:    ret void
;
entry:
  %arrayidx9.1 = getelementptr inbounds i32, ptr %p2, i64 1
  %arrayidx9.2 = getelementptr inbounds i32, ptr %p2, i64 2
  br label %for.cond5

for.cond5:
  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.cond5 ]
  %i3 = load i32, ptr %p2, align 4
  %sub = sub nsw i32 0, %i3
  %i4 = load i32, ptr %arrayidx9.1, align 4
  %sub.1 = sub nsw i32 %sub, %i4
  %i5 = load i32, ptr %arrayidx9.2, align 4
  %sub.2 = sub nsw i32 %sub.1, %i5
  %arrayidx14 = getelementptr inbounds i32, ptr %p, i64 %indvars.iv
  store i32 %sub.2, ptr %arrayidx14, align 4
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond = icmp eq i64 %indvars.iv.next, 63
  br i1 %exitcond, label %for.end17, label %for.cond5

for.end17:
  ret void
}