File: shift-pcmp.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (41 lines) | stat: -rw-r--r-- 1,495 bytes parent folder | download | duplicates (21)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -o - -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=SSE
; RUN: llc < %s -o - -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=AVX

define <8 x i16> @foo(<8 x i16> %a, <8 x i16> %b) {
; SSE-LABEL: foo:
; SSE:       # %bb.0:
; SSE-NEXT:    pcmpeqw %xmm1, %xmm0
; SSE-NEXT:    pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: foo:
; AVX:       # %bb.0:
; AVX-NEXT:    vpcmpeqw %xmm1, %xmm0, %xmm0
; AVX-NEXT:    vpand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
; AVX-NEXT:    retq
  %icmp = icmp eq <8 x i16> %a, %b
  %zext = zext <8 x i1> %icmp to <8 x i16>
  %shl = shl nuw nsw <8 x i16> %zext, <i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5>
  ret <8 x i16> %shl
}

; Don't fail with an assert due to an undef in the buildvector
define <8 x i16> @bar(<8 x i16> %a, <8 x i16> %b) {
; SSE-LABEL: bar:
; SSE:       # %bb.0:
; SSE-NEXT:    pcmpeqw %xmm1, %xmm0
; SSE-NEXT:    pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: bar:
; AVX:       # %bb.0:
; AVX-NEXT:    vpcmpeqw %xmm1, %xmm0, %xmm0
; AVX-NEXT:    vpand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
; AVX-NEXT:    retq
  %icmp = icmp eq <8 x i16> %a, %b
  %zext = zext <8 x i1> %icmp to <8 x i16>
  %shl = shl nuw nsw <8 x i16> %zext, <i16 5, i16 undef, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5>
  ret <8 x i16> %shl
}