File: pr23246.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 (21 lines) | stat: -rw-r--r-- 683 bytes parent folder | download | duplicates (17) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple x86_64-unknown-unknown -mattr=mmx | FileCheck %s

target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"

; PR23246
; We're really only interested in doing something sane with the shuffle.

define <2 x i64> @test(x86_mmx %a) #0 {
; CHECK-LABEL: test:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    movq2dq %mm0, %xmm0
; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,1,0,1]
; CHECK-NEXT:    retq
entry:
  %b = bitcast x86_mmx %a to <1 x i64>
  %s = shufflevector <1 x i64> %b, <1 x i64> undef, <2 x i32> <i32 undef, i32 0>
  ret <2 x i64> %s
}

attributes #0 = { nounwind }