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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
; RUN: llc < %s -march=x86-64 -mcpu=core2 -mattr=+sse2 | FileCheck %s
define double @test1(double %A) {
%1 = bitcast double %A to <2 x i32>
%add = add <2 x i32> %1, <i32 3, i32 5>
%2 = bitcast <2 x i32> %add to double
ret double %2
}
; FIXME: Ideally we should be able to fold the entire body of @test1 into a
; single paddd instruction. At the moment we produce the sequence
; pshufd+paddq+pshufd.
; CHECK-LABEL: test1
; CHECK-NOT: movsd
; CHECK: pshufd
; CHECK-NEXT: paddq
; CHECK-NEXT: pshufd
; CHECK-NEXT: ret
define double @test2(double %A, double %B) {
%1 = bitcast double %A to <2 x i32>
%2 = bitcast double %B to <2 x i32>
%add = add <2 x i32> %1, %2
%3 = bitcast <2 x i32> %add to double
ret double %3
}
; FIXME: Ideally we should be able to fold the entire body of @test2 into a
; single 'paddd %xmm1, %xmm0' instruction. At the moment we produce the
; sequence pshufd+pshufd+paddq+pshufd.
; CHECK-LABEL: test2
; CHECK-NOT: movsd
; CHECK: pshufd
; CHECK-NEXT: pshufd
; CHECK-NEXT: paddq
; CHECK-NEXT: pshufd
; CHECK-NEXT: ret
define i64 @test3(i64 %A) {
%1 = bitcast i64 %A to <2 x float>
%add = fadd <2 x float> %1, <float 3.0, float 5.0>
%2 = bitcast <2 x float> %add to i64
ret i64 %2
}
; CHECK-LABEL: test3
; CHECK-NOT: pshufd
; CHECK: addps
; CHECK-NOT: pshufd
; CHECK: ret
define i64 @test4(i64 %A) {
%1 = bitcast i64 %A to <2 x i32>
%add = add <2 x i32> %1, <i32 3, i32 5>
%2 = bitcast <2 x i32> %add to i64
ret i64 %2
}
; FIXME: At the moment we still produce the sequence pshufd+paddq+pshufd.
; Ideally, we should fold that sequence into a single paddd.
; CHECK-LABEL: test4
; CHECK: pshufd
; CHECK-NEXT: paddq
; CHECK-NEXT: pshufd
; CHECK: ret
define double @test5(double %A) {
%1 = bitcast double %A to <2 x float>
%add = fadd <2 x float> %1, <float 3.0, float 5.0>
%2 = bitcast <2 x float> %add to double
ret double %2
}
; CHECK-LABEL: test5
; CHECK: addps
; CHECK-NEXT: ret
define double @test6(double %A) {
%1 = bitcast double %A to <4 x i16>
%add = add <4 x i16> %1, <i16 3, i16 4, i16 5, i16 6>
%2 = bitcast <4 x i16> %add to double
ret double %2
}
; FIXME: Ideally we should be able to fold the entire body of @test6 into a
; single paddw instruction.
; CHECK-LABEL: test6
; CHECK-NOT: movsd
; CHECK: punpcklwd
; CHECK-NEXT: paddd
; CHECK-NEXT: pshufb
; CHECK-NEXT: ret
define double @test7(double %A, double %B) {
%1 = bitcast double %A to <4 x i16>
%2 = bitcast double %B to <4 x i16>
%add = add <4 x i16> %1, %2
%3 = bitcast <4 x i16> %add to double
ret double %3
}
; FIXME: Ideally we should be able to fold the entire body of @test7 into a
; single 'paddw %xmm1, %xmm0' instruction. At the moment we produce the
; sequence pshufd+pshufd+paddd+pshufd.
; CHECK-LABEL: test7
; CHECK-NOT: movsd
; CHECK: punpcklwd
; CHECK-NEXT: punpcklwd
; CHECK-NEXT: paddd
; CHECK-NEXT: pshufb
; CHECK-NEXT: ret
define double @test8(double %A) {
%1 = bitcast double %A to <8 x i8>
%add = add <8 x i8> %1, <i8 3, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10>
%2 = bitcast <8 x i8> %add to double
ret double %2
}
; FIXME: Ideally we should be able to fold the entire body of @test8 into a
; single paddb instruction. At the moment we produce the sequence
; pshufd+paddw+pshufd.
; CHECK-LABEL: test8
; CHECK-NOT: movsd
; CHECK: punpcklbw
; CHECK-NEXT: paddw
; CHECK-NEXT: pshufb
; CHECK-NEXT: ret
define double @test9(double %A, double %B) {
%1 = bitcast double %A to <8 x i8>
%2 = bitcast double %B to <8 x i8>
%add = add <8 x i8> %1, %2
%3 = bitcast <8 x i8> %add to double
ret double %3
}
; FIXME: Ideally we should be able to fold the entire body of @test9 into a
; single 'paddb %xmm1, %xmm0' instruction. At the moment we produce the
; sequence pshufd+pshufd+paddw+pshufd.
; CHECK-LABEL: test9
; CHECK-NOT: movsd
; CHECK: punpcklbw
; CHECK-NEXT: punpcklbw
; CHECK-NEXT: paddw
; CHECK-NEXT: pshufb
; CHECK-NEXT: ret
|
