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1; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s
2
3; test vector shifts converted to proper SSE2 vector shifts when the shift
4; amounts are the same.
5
6define void @shift1a(<2 x i64> %val, <2 x i64>* %dst) nounwind {
7entry:
8; CHECK: shift1a:
9; CHECK: psrlq
10  %lshr = lshr <2 x i64> %val, < i64 32, i64 32 >
11  store <2 x i64> %lshr, <2 x i64>* %dst
12  ret void
13}
14
15define void @shift1b(<2 x i64> %val, <2 x i64>* %dst, i64 %amt) nounwind {
16entry:
17; CHECK: shift1b:
18; CHECK: movd
19; CHECK-NEXT: psrlq
20  %0 = insertelement <2 x i64> undef, i64 %amt, i32 0
21  %1 = insertelement <2 x i64> %0, i64 %amt, i32 1
22  %lshr = lshr <2 x i64> %val, %1
23  store <2 x i64> %lshr, <2 x i64>* %dst
24  ret void
25}
26
27define void @shift2a(<4 x i32> %val, <4 x i32>* %dst) nounwind {
28entry:
29; CHECK: shift2a:
30; CHECK: psrld
31  %lshr = lshr <4 x i32> %val, < i32 17, i32 17, i32 17, i32 17 >
32  store <4 x i32> %lshr, <4 x i32>* %dst
33  ret void
34}
35
36define void @shift2b(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind {
37entry:
38; CHECK: shift2b:
39; CHECK: movd
40; CHECK-NEXT: psrld
41  %0 = insertelement <4 x i32> undef, i32 %amt, i32 0
42  %1 = insertelement <4 x i32> %0, i32 %amt, i32 1
43  %2 = insertelement <4 x i32> %1, i32 %amt, i32 2
44  %3 = insertelement <4 x i32> %2, i32 %amt, i32 3
45  %lshr = lshr <4 x i32> %val, %3
46  store <4 x i32> %lshr, <4 x i32>* %dst
47  ret void
48}
49
50
51define void @shift3a(<8 x i16> %val, <8 x i16>* %dst) nounwind {
52entry:
53; CHECK: shift3a:
54; CHECK: psrlw
55  %lshr = lshr <8 x i16> %val, < i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5 >
56  store <8 x i16> %lshr, <8 x i16>* %dst
57  ret void
58}
59
60; properly zero extend the shift amount
61define void @shift3b(<8 x i16> %val, <8 x i16>* %dst, i16 %amt) nounwind {
62entry:
63; CHECK: shift3b:
64; CHECK: movzwl
65; CHECK: movd
66; CHECK-NEXT: psrlw
67  %0 = insertelement <8 x i16> undef, i16 %amt, i32 0
68  %1 = insertelement <8 x i16> %0, i16 %amt, i32 1
69  %2 = insertelement <8 x i16> %0, i16 %amt, i32 2
70  %3 = insertelement <8 x i16> %0, i16 %amt, i32 3
71  %4 = insertelement <8 x i16> %0, i16 %amt, i32 4
72  %5 = insertelement <8 x i16> %0, i16 %amt, i32 5
73  %6 = insertelement <8 x i16> %0, i16 %amt, i32 6
74  %7 = insertelement <8 x i16> %0, i16 %amt, i32 7
75  %lshr = lshr <8 x i16> %val, %7
76  store <8 x i16> %lshr, <8 x i16>* %dst
77  ret void
78}
79