avx-trunc.ll
1.37 KB
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 -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s
define <4 x i32> @trunc_64_32(<4 x i64> %A) nounwind uwtable readnone ssp{
; CHECK-LABEL: trunc_64_32:
; CHECK: # %bb.0:
; CHECK-NEXT: vextractf128 $1, %ymm0, %xmm1
; CHECK-NEXT: vshufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[0,2]
; CHECK-NEXT: vzeroupper
; CHECK-NEXT: retq
%B = trunc <4 x i64> %A to <4 x i32>
ret <4 x i32>%B
}
define <8 x i16> @trunc_32_16(<8 x i32> %A) nounwind uwtable readnone ssp{
; CHECK-LABEL: trunc_32_16:
; CHECK: # %bb.0:
; CHECK-NEXT: vextractf128 $1, %ymm0, %xmm1
; CHECK-NEXT: vmovdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
; CHECK-NEXT: vpshufb %xmm2, %xmm1, %xmm1
; CHECK-NEXT: vpshufb %xmm2, %xmm0, %xmm0
; CHECK-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
; CHECK-NEXT: vzeroupper
; CHECK-NEXT: retq
%B = trunc <8 x i32> %A to <8 x i16>
ret <8 x i16>%B
}
define <16 x i8> @trunc_16_8(<16 x i16> %A) nounwind uwtable readnone ssp{
; CHECK-LABEL: trunc_16_8:
; CHECK: # %bb.0:
; CHECK-NEXT: vandps {{.*}}(%rip), %ymm0, %ymm0
; CHECK-NEXT: vextractf128 $1, %ymm0, %xmm1
; CHECK-NEXT: vpackuswb %xmm1, %xmm0, %xmm0
; CHECK-NEXT: vzeroupper
; CHECK-NEXT: retq
%B = trunc <16 x i16> %A to <16 x i8>
ret <16 x i8> %B
}