bitcast-vec-canon.ll
5.32 KB
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
156
157
158
159
160
161
162
163
164
165
166
167
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s
define double @a(<1 x i64> %y) {
; CHECK-LABEL: @a(
; CHECK-NEXT: [[BC:%.*]] = bitcast <1 x i64> [[Y:%.*]] to <1 x double>
; CHECK-NEXT: [[C:%.*]] = extractelement <1 x double> [[BC]], i32 0
; CHECK-NEXT: ret double [[C]]
;
%c = bitcast <1 x i64> %y to double
ret double %c
}
define i64 @b(<1 x i64> %y) {
; CHECK-LABEL: @b(
; CHECK-NEXT: [[TMP1:%.*]] = extractelement <1 x i64> [[Y:%.*]], i32 0
; CHECK-NEXT: ret i64 [[TMP1]]
;
%c = bitcast <1 x i64> %y to i64
ret i64 %c
}
define <1 x i64> @c(double %y) {
; CHECK-LABEL: @c(
; CHECK-NEXT: [[C:%.*]] = bitcast double [[Y:%.*]] to <1 x i64>
; CHECK-NEXT: ret <1 x i64> [[C]]
;
%c = bitcast double %y to <1 x i64>
ret <1 x i64> %c
}
define <1 x i64> @d(i64 %y) {
; CHECK-LABEL: @d(
; CHECK-NEXT: [[C:%.*]] = insertelement <1 x i64> undef, i64 [[Y:%.*]], i32 0
; CHECK-NEXT: ret <1 x i64> [[C]]
;
%c = bitcast i64 %y to <1 x i64>
ret <1 x i64> %c
}
define x86_mmx @e(<1 x i64> %y) {
; CHECK-LABEL: @e(
; CHECK-NEXT: [[TMP1:%.*]] = extractelement <1 x i64> [[Y:%.*]], i32 0
; CHECK-NEXT: [[C:%.*]] = bitcast i64 [[TMP1]] to x86_mmx
; CHECK-NEXT: ret x86_mmx [[C]]
;
%c = bitcast <1 x i64> %y to x86_mmx
ret x86_mmx %c
}
define <1 x i64> @f(x86_mmx %y) {
; CHECK-LABEL: @f(
; CHECK-NEXT: [[TMP1:%.*]] = bitcast x86_mmx [[Y:%.*]] to i64
; CHECK-NEXT: [[C:%.*]] = insertelement <1 x i64> undef, i64 [[TMP1]], i32 0
; CHECK-NEXT: ret <1 x i64> [[C]]
;
%c = bitcast x86_mmx %y to <1 x i64>
ret <1 x i64> %c
}
define double @g(x86_mmx %x) {
; CHECK-LABEL: @g(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = bitcast x86_mmx [[X:%.*]] to double
; CHECK-NEXT: ret double [[TMP0]]
;
entry:
%0 = bitcast x86_mmx %x to <1 x i64>
%1 = bitcast <1 x i64> %0 to double
ret double %1
}
; FP source is ok.
define <3 x i64> @bitcast_inselt_undef(double %x, i32 %idx) {
; CHECK-LABEL: @bitcast_inselt_undef(
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <3 x double> undef, double [[X:%.*]], i32 [[IDX:%.*]]
; CHECK-NEXT: [[I:%.*]] = bitcast <3 x double> [[TMP1]] to <3 x i64>
; CHECK-NEXT: ret <3 x i64> [[I]]
;
%xb = bitcast double %x to i64
%i = insertelement <3 x i64> undef, i64 %xb, i32 %idx
ret <3 x i64> %i
}
; Integer source is ok; index is anything.
define <3 x float> @bitcast_inselt_undef_fp(i32 %x, i567 %idx) {
; CHECK-LABEL: @bitcast_inselt_undef_fp(
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <3 x i32> undef, i32 [[X:%.*]], i567 [[IDX:%.*]]
; CHECK-NEXT: [[I:%.*]] = bitcast <3 x i32> [[TMP1]] to <3 x float>
; CHECK-NEXT: ret <3 x float> [[I]]
;
%xb = bitcast i32 %x to float
%i = insertelement <3 x float> undef, float %xb, i567 %idx
ret <3 x float> %i
}
define <vscale x 3 x float> @bitcast_inselt_undef_vscale(i32 %x, i567 %idx) {
; CHECK-LABEL: @bitcast_inselt_undef_vscale(
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <vscale x 3 x i32> undef, i32 [[X:%.*]], i567 [[IDX:%.*]]
; CHECK-NEXT: [[I:%.*]] = bitcast <vscale x 3 x i32> [[TMP1]] to <vscale x 3 x float>
; CHECK-NEXT: ret <vscale x 3 x float> [[I]]
;
%xb = bitcast i32 %x to float
%i = insertelement <vscale x 3 x float> undef, float %xb, i567 %idx
ret <vscale x 3 x float> %i
}
declare void @use(i64)
; Negative test - extra use prevents canonicalization
define <3 x i64> @bitcast_inselt_undef_extra_use(double %x, i32 %idx) {
; CHECK-LABEL: @bitcast_inselt_undef_extra_use(
; CHECK-NEXT: [[XB:%.*]] = bitcast double [[X:%.*]] to i64
; CHECK-NEXT: call void @use(i64 [[XB]])
; CHECK-NEXT: [[I:%.*]] = insertelement <3 x i64> undef, i64 [[XB]], i32 [[IDX:%.*]]
; CHECK-NEXT: ret <3 x i64> [[I]]
;
%xb = bitcast double %x to i64
call void @use(i64 %xb)
%i = insertelement <3 x i64> undef, i64 %xb, i32 %idx
ret <3 x i64> %i
}
; Negative test - source type must be scalar
define <3 x i64> @bitcast_inselt_undef_vec_src(<2 x i32> %x, i32 %idx) {
; CHECK-LABEL: @bitcast_inselt_undef_vec_src(
; CHECK-NEXT: [[XB:%.*]] = bitcast <2 x i32> [[X:%.*]] to i64
; CHECK-NEXT: [[I:%.*]] = insertelement <3 x i64> undef, i64 [[XB]], i32 [[IDX:%.*]]
; CHECK-NEXT: ret <3 x i64> [[I]]
;
%xb = bitcast <2 x i32> %x to i64
%i = insertelement <3 x i64> undef, i64 %xb, i32 %idx
ret <3 x i64> %i
}
; Negative test - source type must be scalar
define <3 x i64> @bitcast_inselt_undef_from_mmx(x86_mmx %x, i32 %idx) {
; CHECK-LABEL: @bitcast_inselt_undef_from_mmx(
; CHECK-NEXT: [[XB:%.*]] = bitcast x86_mmx [[X:%.*]] to i64
; CHECK-NEXT: [[I:%.*]] = insertelement <3 x i64> undef, i64 [[XB]], i32 [[IDX:%.*]]
; CHECK-NEXT: ret <3 x i64> [[I]]
;
%xb = bitcast x86_mmx %x to i64
%i = insertelement <3 x i64> undef, i64 %xb, i32 %idx
ret <3 x i64> %i
}
; Reduce number of casts
define <2 x i64> @PR45748(double %x, double %y) {
; CHECK-LABEL: @PR45748(
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x double> undef, double [[X:%.*]], i32 0
; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x double> [[TMP1]], double [[Y:%.*]], i32 1
; CHECK-NEXT: [[I1:%.*]] = bitcast <2 x double> [[TMP2]] to <2 x i64>
; CHECK-NEXT: ret <2 x i64> [[I1]]
;
%xb = bitcast double %x to i64
%i0 = insertelement <2 x i64> undef, i64 %xb, i32 0
%yb = bitcast double %y to i64
%i1 = insertelement <2 x i64> %i0, i64 %yb, i32 1
ret <2 x i64> %i1
}