llvm/test/Transforms/SLPVectorizer/X86/parent-phi-node-reordered.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -passes=slp-vectorizer -S -slp-threshold=-99999 -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s

define void @test(i32 %arg, i32 %arg1) {
; CHECK-LABEL: define void @test(
; CHECK-SAME: i32 [[ARG:%.*]], i32 [[ARG1:%.*]]) {
; CHECK-NEXT:  [[BB:.*]]:
; CHECK-NEXT:    [[TMP0:%.*]] = insertelement <4 x i32> poison, i32 [[ARG1]], i32 0
; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <4 x i32> poison, i32 [[ARG]], i32 0
; CHECK-NEXT:    br label %[[BB6:.*]]
; CHECK:       [[BB2:.*]]:
; CHECK-NEXT:    [[TMP2:%.*]] = phi <4 x i32> [ [[TMP14:%.*]], %[[BB19:.*]] ]
; CHECK-NEXT:    ret void
; CHECK:       [[BB6]]:
; CHECK-NEXT:    [[TMP3:%.*]] = phi <4 x i32> [ zeroinitializer, %[[BB]] ], [ [[TMP17:%.*]], %[[BB26:.*]] ], [ [[TMP16:%.*]], %[[BB27:.*]] ], [ zeroinitializer, %[[BB25:.*]] ]
; CHECK-NEXT:    switch i8 0, label %[[BB11:.*]] [
; CHECK-NEXT:      i8 0, label %[[BB28:.*]]
; CHECK-NEXT:    ]
; CHECK:       [[BB11]]:
; CHECK-NEXT:    [[PHI12:%.*]] = phi i32 [ 0, %[[BB28]] ], [ 0, %[[BB6]] ]
; CHECK-NEXT:    [[TMP4:%.*]] = phi <4 x i32> [ [[TMP3]], %[[BB28]] ], [ zeroinitializer, %[[BB6]] ]
; CHECK-NEXT:    [[TMP5:%.*]] = shufflevector <4 x i32> [[TMP4]], <4 x i32> <i32 poison, i32 0, i32 poison, i32 poison>, <4 x i32> <i32 0, i32 5, i32 2, i32 3>
; CHECK-NEXT:    [[TMP6:%.*]] = insertelement <4 x i32> [[TMP5]], i32 [[ARG]], i32 0
; CHECK-NEXT:    [[TMP7:%.*]] = insertelement <4 x i32> [[TMP6]], i32 [[PHI12]], i32 3
; CHECK-NEXT:    [[TMP8:%.*]] = shufflevector <4 x i32> [[TMP4]], <4 x i32> <i32 poison, i32 0, i32 poison, i32 0>, <4 x i32> <i32 poison, i32 5, i32 2, i32 7>
; CHECK-NEXT:    [[TMP9:%.*]] = shufflevector <4 x i32> [[TMP8]], <4 x i32> [[TMP1]], <4 x i32> <i32 4, i32 1, i32 2, i32 3>
; CHECK-NEXT:    switch i8 0, label %[[BB19]] [
; CHECK-NEXT:      i8 1, label %[[BB17:.*]]
; CHECK-NEXT:      i8 0, label %[[BB18:.*]]
; CHECK-NEXT:    ]
; CHECK:       [[BB17]]:
; CHECK-NEXT:    [[TMP10:%.*]] = add <4 x i32> [[TMP4]], zeroinitializer
; CHECK-NEXT:    [[TMP11:%.*]] = shufflevector <4 x i32> [[TMP4]], <4 x i32> [[TMP10]], <4 x i32> <i32 0, i32 3, i32 6, i32 poison>
; CHECK-NEXT:    [[TMP12:%.*]] = shufflevector <4 x i32> [[TMP11]], <4 x i32> <i32 poison, i32 poison, i32 poison, i32 0>, <4 x i32> <i32 0, i32 1, i32 2, i32 7>
; CHECK-NEXT:    br label %[[BB19]]
; CHECK:       [[BB18]]:
; CHECK-NEXT:    [[TMP13:%.*]] = shufflevector <4 x i32> [[TMP7]], <4 x i32> poison, <4 x i32> <i32 0, i32 3, i32 2, i32 0>
; CHECK-NEXT:    br label %[[BB19]]
; CHECK:       [[BB19]]:
; CHECK-NEXT:    [[TMP14]] = phi <4 x i32> [ [[TMP10]], %[[BB17]] ], [ [[TMP7]], %[[BB18]] ], [ [[TMP9]], %[[BB11]] ]
; CHECK-NEXT:    [[TMP15:%.*]] = phi <4 x i32> [ [[TMP12]], %[[BB17]] ], [ [[TMP13]], %[[BB18]] ], [ [[TMP7]], %[[BB11]] ]
; CHECK-NEXT:    [[TMP16]] = shufflevector <4 x i32> [[TMP15]], <4 x i32> poison, <4 x i32> <i32 0, i32 3, i32 2, i32 1>
; CHECK-NEXT:    br i1 false, label %[[BB2]], label %[[BB25]]
; CHECK:       [[BB25]]:
; CHECK-NEXT:    switch i8 0, label %[[BB6]] [
; CHECK-NEXT:      i8 0, label %[[BB26]]
; CHECK-NEXT:      i8 1, label %[[BB27]]
; CHECK-NEXT:      i8 6, label %[[BB27]]
; CHECK-NEXT:    ]
; CHECK:       [[BB26]]:
; CHECK-NEXT:    [[TMP17]] = shufflevector <4 x i32> [[TMP14]], <4 x i32> [[TMP0]], <4 x i32> <i32 4, i32 1, i32 2, i32 3>
; CHECK-NEXT:    br label %[[BB6]]
; CHECK:       [[BB27]]:
; CHECK-NEXT:    br label %[[BB6]]
; CHECK:       [[BB28]]:
; CHECK-NEXT:    br label %[[BB11]]
;
bb:
  br label %bb6

bb2:
  %phi = phi i32 [ %phi21, %bb19 ]
  %phi3 = phi i32 [ %phi22, %bb19 ]
  %phi4 = phi i32 [ %phi23, %bb19 ]
  %phi5 = phi i32 [ %phi24, %bb19 ]
  ret void

bb6:
  %phi7 = phi i32 [ 0, %bb ], [ %phi24, %bb26 ], [ %phi24, %bb27 ], [ 0, %bb25 ]
  %phi8 = phi i32 [ 0, %bb ], [ %arg1, %bb26 ], [ %phi23, %bb27 ], [ 0, %bb25 ]
  %phi9 = phi i32 [ 0, %bb ], [ %phi22, %bb26 ], [ %phi20, %bb27 ], [ 0, %bb25 ]
  %phi10 = phi i32 [ 0, %bb ], [ %phi21, %bb26 ], [ %phi21, %bb27 ], [ 0, %bb25 ]
  switch i8 0, label %bb11 [
  i8 0, label %bb28
  ]

bb11:
  %phi12 = phi i32 [ 0, %bb28 ], [ 0, %bb6 ]
  %phi13 = phi i32 [ %phi10, %bb28 ], [ 0, %bb6 ]
  %phi14 = phi i32 [ %phi9, %bb28 ], [ 0, %bb6 ]
  %phi15 = phi i32 [ %phi8, %bb28 ], [ 0, %bb6 ]
  %phi16 = phi i32 [ %phi7, %bb28 ], [ 0, %bb6 ]
  switch i8 0, label %bb19 [
  i8 1, label %bb17
  i8 0, label %bb18
  ]

bb17:
  %add = add i32 %phi16, 0
  br label %bb19

bb18:
  br label %bb19

bb19:
  %phi20 = phi i32 [ 0, %bb17 ], [ %arg, %bb18 ], [ %phi12, %bb11 ]
  %phi21 = phi i32 [ %phi13, %bb17 ], [ %phi12, %bb18 ], [ 0, %bb11 ]
  %phi22 = phi i32 [ %phi14, %bb17 ], [ 0, %bb18 ], [ 0, %bb11 ]
  %phi23 = phi i32 [ %phi15, %bb17 ], [ %arg, %bb18 ], [ %arg, %bb11 ]
  %phi24 = phi i32 [ %add, %bb17 ], [ %phi16, %bb18 ], [ %phi16, %bb11 ]
  br i1 false, label %bb2, label %bb25

bb25:
  switch i8 0, label %bb6 [
  i8 0, label %bb26
  i8 1, label %bb27
  i8 6, label %bb27
  ]

bb26:
  br label %bb6

bb27:
  br label %bb6

bb28:
  br label %bb11
}