llvm/test/Transforms/SLPVectorizer/RISCV/gather-insert-point-restore.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S --passes=slp-vectorizer -mtriple=riscv64-unknown-linux-gnu -mattr=+v < %s | FileCheck %s

define i16 @test(ptr %i) {
; CHECK-LABEL: define i16 @test(
; CHECK-SAME: ptr [[I:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    [[TMP0:%.*]] = insertelement <2 x ptr> poison, ptr [[I]], i32 0
; CHECK-NEXT:    [[TMP1:%.*]] = shufflevector <2 x ptr> [[TMP0]], <2 x ptr> poison, <2 x i32> zeroinitializer
; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr i8, <2 x ptr> [[TMP1]], <2 x i64> <i64 132860, i64 137774>
; CHECK-NEXT:    [[TMP3:%.*]] = shufflevector <2 x ptr> [[TMP2]], <2 x ptr> poison, <4 x i32> <i32 0, i32 1, i32 0, i32 1>
; CHECK-NEXT:    [[GEP_US154_2:%.*]] = getelementptr i8, ptr [[I]], i64 142688
; CHECK-NEXT:    br label %[[FOR_COND5_US:.*]]
; CHECK:       [[FOR_COND5_US]]:
; CHECK-NEXT:    [[TMP4:%.*]] = call <4 x i16> @llvm.experimental.vp.strided.load.v4i16.p0.i64(ptr align 2 [[GEP_US154_2]], i64 4914, <4 x i1> splat (i1 true), i32 4)
; CHECK-NEXT:    [[TMP5:%.*]] = call <4 x i16> @llvm.masked.gather.v4i16.v4p0(<4 x ptr> [[TMP3]], i32 2, <4 x i1> splat (i1 true), <4 x i16> poison)
; CHECK-NEXT:    [[TMP6:%.*]] = shufflevector <4 x i16> [[TMP4]], <4 x i16> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT:    [[TMP10:%.*]] = shufflevector <4 x i16> [[TMP5]], <4 x i16> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT:    [[TMP7:%.*]] = shufflevector <4 x i16> [[TMP4]], <4 x i16> [[TMP5]], <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
; CHECK-NEXT:    [[TMP8:%.*]] = call i16 @llvm.vector.reduce.umax.v8i16(<8 x i16> [[TMP7]])
; CHECK-NEXT:    [[TMP9:%.*]] = call i16 @llvm.umax.i16(i16 [[TMP8]], i16 0)
; CHECK-NEXT:    ret i16 [[TMP9]]
;
entry:
  %gep.us154 = getelementptr i8, ptr %i, i64 132860
  %gep.us154.1 = getelementptr i8, ptr %i, i64 137774
  %gep.us154.2 = getelementptr i8, ptr %i, i64 142688
  %gep.us154.3 = getelementptr i8, ptr %i, i64 147602
  %gep.us154.4 = getelementptr i8, ptr %i, i64 152516
  %gep.us154.5 = getelementptr i8, ptr %i, i64 157430
  br label %for.cond5.us

for.cond5.us:
  %0 = load i16, ptr %gep.us154, align 2
  %1 = load i16, ptr %gep.us154.1, align 2
  %2 = load i16, ptr %gep.us154.2, align 2
  %3 = load i16, ptr %gep.us154.3, align 2
  %4 = load i16, ptr %gep.us154.4, align 2
  %5 = load i16, ptr %gep.us154.5, align 2
  %6 = call i16 @llvm.umax.i16(i16 %5, i16 0)
  %7 = call i16 @llvm.umax.i16(i16 %0, i16 %6)
  %8 = call i16 @llvm.umax.i16(i16 %1, i16 %7)
  %9 = call i16 @llvm.umax.i16(i16 %2, i16 %8)
  %10 = call i16 @llvm.umax.i16(i16 %3, i16 %9)
  %11 = call i16 @llvm.umax.i16(i16 %2, i16 %10)
  %12 = call i16 @llvm.umax.i16(i16 %3, i16 %11)
  %13 = call i16 @llvm.umax.i16(i16 %4, i16 %12)
  %14 = load i16, ptr %gep.us154, align 2
  %15 = call i16 @llvm.umax.i16(i16 %14, i16 %13)
  %16 = load i16, ptr %gep.us154.1, align 2
  %17 = call i16 @llvm.umax.i16(i16 %16, i16 %15)
  %18 = call i16 @llvm.umax.i16(i16 %4, i16 %17)
  ret i16 %18
}

declare i16 @llvm.umax.i16(i16, i16) #1