File: aarch64-wide-shuffle.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (22 lines) | stat: -rw-r--r-- 927 bytes parent folder | download | duplicates (19) 
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 | FileCheck %s

target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-unknown-linux-gnu"

define <4 x i16> @f(<4 x i32> %vqdmlal_v3.i, <8 x i16> %x5) {
entry:
  ; Check that we don't just dup the input vector. The code emitted is ext, dup, ext, ext
  ; but only match the last three instructions as the first two could be combined to
  ; a dup2 at some stage.
  ; CHECK: dup
  ; CHECK: ext
  ; CHECK: ext
  %x4 = extractelement <4 x i32> %vqdmlal_v3.i, i32 2
  %vgetq_lane = trunc i32 %x4 to i16
  %vecinit.i = insertelement <4 x i16> undef, i16 %vgetq_lane, i32 0
  %vecinit2.i = insertelement <4 x i16> %vecinit.i, i16 %vgetq_lane, i32 2
  %vecinit3.i = insertelement <4 x i16> %vecinit2.i, i16 %vgetq_lane, i32 3
  %vgetq_lane261 = extractelement <8 x i16> %x5, i32 0
  %vset_lane267 = insertelement <4 x i16> %vecinit3.i, i16 %vgetq_lane261, i32 1
  ret <4 x i16> %vset_lane267
}