llvm/test/Transforms/SLPVectorizer/RISCV/trunc-bv-multi-uses.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt -S --passes=slp-vectorizer -mtriple=riscv64-unknown-linux-gnu -mattr="+v" < %s -slp-threshold=-10 | FileCheck %s

define i32 @test(i64 %v1, i64 %v2) {
; CHECK-LABEL: define i32 @test(
; CHECK-SAME: i64 [[V1:%.*]], i64 [[V2:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[TMP0:%.*]] = insertelement <2 x i64> poison, i64 [[V1]], i32 0
; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <2 x i64> [[TMP0]], i64 [[V2]], i32 1
; CHECK-NEXT:    [[TMP2:%.*]] = trunc <2 x i64> [[TMP1]] to <2 x i32>
; CHECK-NEXT:    [[TMP4:%.*]] = lshr <2 x i64> [[TMP1]], <i64 32, i64 32>
; CHECK-NEXT:    [[TMP5:%.*]] = trunc <2 x i64> [[TMP4]] to <2 x i32>
; CHECK-NEXT:    [[TMP6:%.*]] = add <2 x i32> [[TMP2]], [[TMP5]]
; CHECK-NEXT:    [[TMP7:%.*]] = extractelement <2 x i32> [[TMP6]], i32 0
; CHECK-NEXT:    [[TMP8:%.*]] = extractelement <2 x i32> [[TMP6]], i32 1
; CHECK-NEXT:    [[MUL:%.*]] = mul i32 [[TMP7]], [[TMP8]]
; CHECK-NEXT:    ret i32 [[MUL]]
;
entry:
  %t1 = trunc i64 %v1 to i32
  %t2 = trunc i64 %v2 to i32
  %lshr1 = lshr i64 %v1, 32
  %lshr2 = lshr i64 %v2, 32
  %t3 = trunc i64 %lshr1 to i32
  %t4 = trunc i64 %lshr2 to i32
  %add1 = add i32 %t1, %t3
  %add2 = add i32 %t2, %t4
  %mul = mul i32 %add1, %add2
  ret i32 %mul
}