blob: 10e8d6c0ea41c64ee91ef162a9d083d39936506e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
; RUN: llc < %s -march=arm64 -arm64-neon-syntax=apple -mcpu=cyclone | FileCheck %s
; RUN: llc < %s -march=arm64 -arm64-neon-syntax=apple -O0 -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-FAST
define <16 x i8> @foo(<16 x i8> %a) nounwind optsize readnone ssp {
; CHECK: uaddlv.16b h0, v0
; CHECK: rshrn.8b v0, v0, #4
; CHECK: dup.16b v0, v0[0]
; CHECK: ret
; CHECK-FAST: uaddlv.16b
; CHECK-FAST: rshrn.8b
; CHECK-FAST: dup.16b
%tmp = tail call i32 @llvm.arm64.neon.uaddlv.i32.v16i8(<16 x i8> %a) nounwind
%tmp1 = trunc i32 %tmp to i16
%tmp2 = insertelement <8 x i16> undef, i16 %tmp1, i32 0
%tmp3 = tail call <8 x i8> @llvm.arm64.neon.rshrn.v8i8(<8 x i16> %tmp2, i32 4)
%tmp4 = shufflevector <8 x i8> %tmp3, <8 x i8> undef, <16 x i32> zeroinitializer
ret <16 x i8> %tmp4
}
declare <8 x i8> @llvm.arm64.neon.rshrn.v8i8(<8 x i16>, i32) nounwind readnone
declare i32 @llvm.arm64.neon.uaddlv.i32.v16i8(<16 x i8>) nounwind readnone
|
