File: arm64-i16-subreg-extract.ll

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llvm-toolchain-4.0 1%3A4.0.1-10~deb9u2
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; RUN: llc < %s -mtriple=arm64-eabi -aarch64-neon-syntax=apple | FileCheck %s

define i32 @foo(<4 x i16>* %__a) nounwind {
; CHECK-LABEL: foo:
; CHECK: umov.h w{{[0-9]+}}, v{{[0-9]+}}[0]
  %tmp18 = load <4 x i16>, <4 x i16>* %__a, align 8
  %vget_lane = extractelement <4 x i16> %tmp18, i32 0
  %conv = zext i16 %vget_lane to i32
  %mul = mul nsw i32 3, %conv
  ret i32 %mul
}