File: vec_shuffle-30.ll

package info (click to toggle)
llvm-toolchain-3.5 1%3A3.5-10
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 282,028 kB
  • ctags: 310,872
  • sloc: cpp: 1,883,926; ansic: 310,731; objc: 86,612; python: 79,565; asm: 65,844; sh: 9,829; makefile: 6,057; perl: 5,589; ml: 5,254; pascal: 3,285; lisp: 1,640; xml: 686; cs: 239; csh: 117
file content (26 lines) | stat: -rw-r--r-- 881 bytes parent folder | download | duplicates (3)
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
; RUN: llc < %s -march=x86 -mattr=+avx | FileCheck %s

; CHECK: test
; Test case when creating pshufhw, we incorrectly set the higher order bit
; for an undef,
define void @test(<8 x i16>* %dest, <8 x i16> %in) nounwind {
entry:
; CHECK-NOT: vmovaps
; CHECK: vmovlpd
; CHECK: vpshufhw        $-95
  %0 = load <8 x i16>* %dest
  %1 = shufflevector <8 x i16> %0, <8 x i16> %in, <8 x i32> < i32 0, i32 1, i32 2, i32 3, i32 13, i32 undef, i32 14, i32 14>
  store <8 x i16> %1, <8 x i16>* %dest
  ret void
}

; CHECK: test2
; A test case where we shouldn't generate a punpckldq but a pshufd and a pslldq
define void @test2(<4 x i32>* %dest, <4 x i32> %in) nounwind {
entry:
; CHECK-NOT: pslldq
; CHECK: shufps
  %0 = shufflevector <4 x i32> %in, <4 x i32> <i32 0, i32 0, i32 0, i32 0>, <4 x i32> < i32 undef, i32 5, i32 undef, i32 2>
  store <4 x i32> %0, <4 x i32>* %dest
  ret void
}