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
44
45
46
47
48
49
50
51
52
53
54
55
56
|
; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s
; When loading the shift amount from memory, avoid generating the splat.
define void @shift5a(<4 x i32> %val, <4 x i32>* %dst, i32* %pamt) nounwind {
entry:
; CHECK-LABEL: shift5a:
; CHECK: movd
; CHECK: pslld
%amt = load i32, i32* %pamt
%tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0
%shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer
%shl = shl <4 x i32> %val, %shamt
store <4 x i32> %shl, <4 x i32>* %dst
ret void
}
define void @shift5b(<4 x i32> %val, <4 x i32>* %dst, i32* %pamt) nounwind {
entry:
; CHECK-LABEL: shift5b:
; CHECK: movd
; CHECK: psrad
%amt = load i32, i32* %pamt
%tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0
%shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer
%shr = ashr <4 x i32> %val, %shamt
store <4 x i32> %shr, <4 x i32>* %dst
ret void
}
define void @shift5c(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind {
entry:
; CHECK-LABEL: shift5c:
; CHECK: movd
; CHECK: pslld
%tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0
%shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer
%shl = shl <4 x i32> %val, %shamt
store <4 x i32> %shl, <4 x i32>* %dst
ret void
}
define void @shift5d(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind {
entry:
; CHECK-LABEL: shift5d:
; CHECK: movd
; CHECK: psrad
%tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0
%shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer
%shr = ashr <4 x i32> %val, %shamt
store <4 x i32> %shr, <4 x i32>* %dst
ret void
}
|
