llvm/llvm/test/CodeGen/X86/fp-round-with-concat-vector-undef-elem.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5

; RUN: llc < %s -mtriple=x86_64 -mattr=+avx512fp16 | FileCheck %s

define void @foo(<2 x float> %0) {
; CHECK-LABEL: foo:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vbroadcastsd %xmm0, %ymm0
; CHECK-NEXT:    vxorps %xmm1, %xmm1, %xmm1
; CHECK-NEXT:    vunpcklpd {{.*#+}} ymm0 = ymm1[0],ymm0[0],ymm1[2],ymm0[2]
; CHECK-NEXT:    vcvtps2phx %ymm0, %xmm0
; CHECK-NEXT:    vmovlps %xmm0, 0
; CHECK-NEXT:    vzeroupper
; CHECK-NEXT:    retq
entry:
  %1 = shufflevector <2 x float> zeroinitializer, <2 x float> %0, <8 x i32> <i32 poison, i32 poison, i32 poison, i32 poison, i32 0, i32 1, i32 2, i32 3>
  %2 = fptrunc <8 x float> %1 to <8 x half>
  %3 = bitcast <8 x half> %2 to <2 x i64>
  %4 = extractelement <2 x i64> %3, i64 0
  store i64 %4, ptr null, align 8
  ret void
}