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
42
43
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.2 | FileCheck %s --check-prefix=SSE
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=AVX
; Ensure we match legal min/max intrinsics and the expanded compare+select equivalents.
declare <4 x i32> @llvm.smax.v4i32(<4 x i32>, <4 x i32>)
define <4 x i32> @PR27924_cmpeq(<4 x i32> %a, <4 x i32> %b) {
; SSE-LABEL: PR27924_cmpeq:
; SSE: # %bb.0:
; SSE-NEXT: pcmpeqd %xmm0, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: PR27924_cmpeq:
; AVX: # %bb.0:
; AVX-NEXT: vpcmpeqd %xmm0, %xmm0, %xmm0
; AVX-NEXT: retq
%cmp = icmp sgt <4 x i32> %a, %b
%max = select <4 x i1> %cmp, <4 x i32> %a, <4 x i32> %b
%sse_max = tail call <4 x i32> @llvm.smax.v4i32(<4 x i32> %a, <4 x i32> %b)
%truth = icmp eq <4 x i32> %max, %sse_max
%ret = sext <4 x i1> %truth to <4 x i32>
ret <4 x i32> %ret
}
define <4 x i32> @PR27924_cmpgt(<4 x i32> %a, <4 x i32> %b) {
; SSE-LABEL: PR27924_cmpgt:
; SSE: # %bb.0:
; SSE-NEXT: xorps %xmm0, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: PR27924_cmpgt:
; AVX: # %bb.0:
; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0
; AVX-NEXT: retq
%cmp = icmp sgt <4 x i32> %a, %b
%max = select <4 x i1> %cmp, <4 x i32> %a, <4 x i32> %b
%sse_max = tail call <4 x i32> @llvm.smax.v4i32(<4 x i32> %a, <4 x i32> %b)
%untruth = icmp sgt <4 x i32> %max, %sse_max
%ret = sext <4 x i1> %untruth to <4 x i32>
ret <4 x i32> %ret
}
|
