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
| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-linux -mcpu=corei7-avx | FileCheck %s
; These tests check that an insert_subvector which replaces one of the halves
; of a concat_vectors is optimized into a single vinsertf128.
declare <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float>, <4 x float>, i8)
define <8 x float> @lower_half(<4 x float> %v1, <4 x float> %v2, <4 x float> %v3) {
; CHECK-LABEL: lower_half:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $xmm2 killed $xmm2 def $ymm2
; CHECK-NEXT: vinsertf128 $1, %xmm1, %ymm2, %ymm0
; CHECK-NEXT: retq
%1 = shufflevector <4 x float> %v1, <4 x float> %v2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
%2 = tail call <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float> %1, <4 x float> %v3, i8 0)
ret <8 x float> %2
}
define <8 x float> @upper_half(<4 x float> %v1, <4 x float> %v2, <4 x float> %v3) {
; CHECK-LABEL: upper_half:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $xmm0 killed $xmm0 def $ymm0
; CHECK-NEXT: vinsertf128 $1, %xmm2, %ymm0, %ymm0
; CHECK-NEXT: retq
%1 = shufflevector <4 x float> %v1, <4 x float> %v2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
%2 = tail call <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float> %1, <4 x float> %v3, i8 1)
ret <8 x float> %2
}
|