llvm/test/Transforms/SLPVectorizer/X86/reduction-same-vals.ll

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

define i64 @test() {
; CHECK-LABEL: @test(
; CHECK-NEXT:  bb1:
; CHECK-NEXT:    br label [[BB3:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    br label [[BB3]]
; CHECK:       bb3:
; CHECK-NEXT:    [[TMP0:%.*]] = phi <2 x i32> [ poison, [[BB2:%.*]] ], [ zeroinitializer, [[BB1:%.*]] ]
; CHECK-NEXT:    [[SHUFFLE:%.*]] = shufflevector <2 x i32> [[TMP0]], <2 x i32> poison, <4 x i32> <i32 0, i32 0, i32 0, i32 1>
; CHECK-NEXT:    [[TMP1:%.*]] = shufflevector <2 x i32> [[TMP0]], <2 x i32> poison, <8 x i32> zeroinitializer
; CHECK-NEXT:    [[TMP2:%.*]] = call i32 @llvm.vector.reduce.mul.v8i32(<8 x i32> [[TMP1]])
; CHECK-NEXT:    [[TMP3:%.*]] = call i32 @llvm.vector.reduce.mul.v4i32(<4 x i32> [[SHUFFLE]])
; CHECK-NEXT:    [[OP_RDX:%.*]] = mul i32 [[TMP2]], [[TMP3]]
; CHECK-NEXT:    [[TMP65:%.*]] = sext i32 [[OP_RDX]] to i64
; CHECK-NEXT:    ret i64 [[TMP65]]
;
bb1:
  br label %bb3

bb2:
  br label %bb3

bb3:
  %tmp = phi i32 [ 0, %bb2 ], [ 0, %bb1 ]
  %tmp4 = phi i32 [ 0, %bb2 ], [ 0, %bb1 ]
  %tmp5 = mul i32 %tmp, %tmp4
  %tmp6 = mul i32 %tmp5, %tmp4
  %tmp7 = mul i32 %tmp6, %tmp4
  %tmp8 = mul i32 %tmp7, %tmp4
  %tmp9 = mul i32 %tmp8, %tmp4
  %tmp10 = mul i32 %tmp9, %tmp4
  %tmp11 = mul i32 %tmp10, %tmp4
  %tmp12 = mul i32 %tmp11, %tmp4
  %tmp13 = mul i32 %tmp12, %tmp4
  %tmp14 = mul i32 %tmp13, %tmp4
  %tmp15 = mul i32 %tmp14, %tmp4
  %tmp65 = sext i32 %tmp15 to i64
  ret i64 %tmp65
}