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
57
|
; RUN: llc < %s -march=x86 -mcpu=core2 | FileCheck %s
define <4 x i16> @a(i32* %x1) nounwind {
; CHECK-LABEL: a:
; CHECK: shrl %[[R:[^,]+]]
; CHECK-NEXT: movd %[[R]], %xmm0
; CHECK-NEXT: retl
%x2 = load i32* %x1
%x3 = lshr i32 %x2, 1
%x = trunc i32 %x3 to i16
%r = insertelement <4 x i16> zeroinitializer, i16 %x, i32 0
ret <4 x i16> %r
}
define <8 x i16> @b(i32* %x1) nounwind {
; CHECK-LABEL: b:
; CHECK: shrl %e[[R:.]]x
; CHECK-NEXT: movzwl %[[R]]x, %e[[R]]x
; CHECK-NEXT: movd %e[[R]]x, %xmm0
; CHECK-NEXT: retl
%x2 = load i32* %x1
%x3 = lshr i32 %x2, 1
%x = trunc i32 %x3 to i16
%r = insertelement <8 x i16> zeroinitializer, i16 %x, i32 0
ret <8 x i16> %r
}
define <8 x i8> @c(i32* %x1) nounwind {
; CHECK-LABEL: c:
; CHECK: shrl %e[[R:.]]x
; CHECK-NEXT: movzwl %[[R]]x, %e[[R]]x
; CHECK-NEXT: movd %e[[R]]x, %xmm0
; CHECK-NEXT: retl
%x2 = load i32* %x1
%x3 = lshr i32 %x2, 1
%x = trunc i32 %x3 to i8
%r = insertelement <8 x i8> zeroinitializer, i8 %x, i32 0
ret <8 x i8> %r
}
define <16 x i8> @d(i32* %x1) nounwind {
; CHECK-LABEL: d:
; CHECK: shrl %e[[R:.]]x
; CHECK-NEXT: movzbl %[[R]]l, %e[[R]]x
; CHECK-NEXT: movd %e[[R]]x, %xmm0
; CHECK-NEXT: retl
%x2 = load i32* %x1
%x3 = lshr i32 %x2, 1
%x = trunc i32 %x3 to i8
%r = insertelement <16 x i8> zeroinitializer, i8 %x, i32 0
ret <16 x i8> %r
}
|