llvm/test/Transforms/SLPVectorizer/X86/perfect-matched-reused-bv.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S --passes=slp-vectorizer -mtriple=x86_64-unknown-linux-gnu -mattr=+avx512f < %s | FileCheck %s

define void @test() {
; CHECK-LABEL: define void @test(
; CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:  [[BB:.*]]:
; CHECK-NEXT:    br label %[[BB1:.*]]
; CHECK:       [[BB1]]:
; CHECK-NEXT:    [[TMP0:%.*]] = phi <2 x i32> [ zeroinitializer, %[[BB]] ], [ [[TMP4:%.*]], %[[BB4:.*]] ]
; CHECK-NEXT:    [[TMP1:%.*]] = or <2 x i32> [[TMP0]], zeroinitializer
; CHECK-NEXT:    br i1 false, label %[[BB7:.*]], label %[[BB4]]
; CHECK:       [[BB4]]:
; CHECK-NEXT:    [[TMP2:%.*]] = shufflevector <2 x i32> [[TMP0]], <2 x i32> <i32 0, i32 poison>, <2 x i32> <i32 2, i32 1>
; CHECK-NEXT:    [[TMP3:%.*]] = add <2 x i32> zeroinitializer, [[TMP2]]
; CHECK-NEXT:    [[TMP4]] = add <2 x i32> zeroinitializer, [[TMP2]]
; CHECK-NEXT:    br i1 false, label %[[BB7]], label %[[BB1]]
; CHECK:       [[BB7]]:
; CHECK-NEXT:    [[TMP5:%.*]] = phi <2 x i32> [ [[TMP1]], %[[BB1]] ], [ [[TMP3]], %[[BB4]] ]
; CHECK-NEXT:    ret void
;
bb:
  br label %bb1

bb1:
  %phi = phi i32 [ 0, %bb ], [ %add6, %bb4 ]
  %phi2 = phi i32 [ 0, %bb ], [ %add, %bb4 ]
  %or = or i32 %phi2, 0
  %or3 = or i32 %phi, 0
  br i1 false, label %bb7, label %bb4

bb4:
  %add = add i32 0, 0
  %add5 = add i32 0, 0
  %add6 = add i32 %phi, 0
  br i1 false, label %bb7, label %bb1

bb7:
  %phi8 = phi i32 [ %or, %bb1 ], [ %add5, %bb4 ]
  %phi9 = phi i32 [ %or3, %bb1 ], [ %add6, %bb4 ]
  ret void
}