test/Transforms/LoopVectorize/select-neg-cond.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 5
; RUN: opt -p loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S < %s | FileCheck %s

define void @neg_cond(ptr noalias %p, ptr noalias %q) {
; CHECK-LABEL: define void @neg_cond(
; CHECK-SAME: ptr noalias [[P:%.*]], ptr noalias [[Q:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr i32, ptr [[P]], i32 [[INDEX]]
; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP0]], align 4
; CHECK-NEXT:    [[TMP3:%.*]] = icmp ne <4 x i32> [[WIDE_LOAD]], splat (i32 42)
; CHECK-NEXT:    [[TMP4:%.*]] = select <4 x i1> [[TMP3]], <4 x i32> splat (i32 42), <4 x i32> splat (i32 43)
; CHECK-NEXT:    store <4 x i32> [[TMP4]], ptr [[TMP0]], align 4
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1024
; CHECK-NEXT:    br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    br label %[[EXIT:.*]]
; CHECK:       [[SCALAR_PH:.*]]:
; CHECK-NEXT:    br label %[[LOOP:.*]]
; CHECK:       [[LOOP]]:
; CHECK-NEXT:    [[IV:%.*]] = phi i32 [ 0, %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT:    [[P_GEP:%.*]] = getelementptr i32, ptr [[P]], i32 [[IV]]
; CHECK-NEXT:    [[X:%.*]] = load i32, ptr [[P_GEP]], align 4
; CHECK-NEXT:    [[Q_GEP:%.*]] = getelementptr i32, ptr [[Q]], i32 [[IV]]
; CHECK-NEXT:    [[Y:%.*]] = load i32, ptr [[Q_GEP]], align 4
; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[X]], 42
; CHECK-NEXT:    [[NOT:%.*]] = xor i1 [[CMP]], true
; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[NOT]], i32 42, i32 43
; CHECK-NEXT:    store i32 [[SEL]], ptr [[P_GEP]], align 4
; CHECK-NEXT:    [[IV_NEXT]] = add i32 [[IV]], 1
; CHECK-NEXT:    [[DONE:%.*]] = icmp eq i32 [[IV_NEXT]], 1024
; CHECK-NEXT:    br i1 [[DONE]], label %[[EXIT]], label %[[LOOP]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %loop

loop:
  %iv = phi i32 [0, %entry], [%iv.next, %loop]
  %p.gep = getelementptr i32, ptr %p, i32 %iv
  %x = load i32, ptr %p.gep
  %q.gep = getelementptr i32, ptr %q, i32 %iv
  %y = load i32, ptr %q.gep
  %cmp = icmp eq i32 %x, 42
  %not = xor i1 %cmp, 1
  %sel = select i1 %not, i32 42, i32 43
  store i32 %sel, ptr %p.gep
  %iv.next = add i32 %iv, 1
  %done = icmp eq i32 %iv.next, 1024
  br i1 %done, label %exit, label %loop

exit:
  ret void
}