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
|
; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s
; CHECK: foo
; CHECK: xorps
define void @foo(<4 x float>* %P) {
%T = load <4 x float>* %P ; <<4 x float>> [#uses=1]
%S = fadd <4 x float> zeroinitializer, %T ; <<4 x float>> [#uses=1]
store <4 x float> %S, <4 x float>* %P
ret void
}
; CHECK: bar
; CHECK: pxor
define void @bar(<4 x i32>* %P) {
%T = load <4 x i32>* %P ; <<4 x i32>> [#uses=1]
%S = sub <4 x i32> zeroinitializer, %T ; <<4 x i32>> [#uses=1]
store <4 x i32> %S, <4 x i32>* %P
ret void
}
; Without any type hints from operations, we fall back to the smaller xorps.
; The IR type <4 x i32> is ignored.
; CHECK: untyped_zero
; CHECK: xorps
; CHECK: movaps
define void @untyped_zero(<4 x i32>* %p) {
entry:
store <4 x i32> zeroinitializer, <4 x i32>* %p, align 16
ret void
}
|
