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
|
# RUN: llc -mtriple arm-- -run-pass=legalizer %s -o - | FileCheck %s
# RUN: llc -mtriple thumb-- -mattr=+v6t2 -run-pass=legalizer %s -o - | FileCheck %s
--- |
define void @test_select_s32() { ret void }
define void @test_select_ptr() { ret void }
define void @test_select_s16() { ret void }
define void @test_select_s8() { ret void }
...
---
name: test_select_s32
# CHECK-LABEL: name: test_select_s32
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
body: |
bb.0:
liveins: $r0, $r1, $r2
%0(s32) = COPY $r0
%1(s32) = COPY $r1
%2(s1) = G_CONSTANT i1 1
%3(s32) = G_SELECT %2(s1), %0, %1
; G_SELECT with s32 is legal, so we should find it unchanged in the output
; CHECK: {{%[0-9]+}}:_(s32) = G_SELECT {{%[0-9]+}}(s1), {{%[0-9]+}}, {{%[0-9]+}}
$r0 = COPY %3(s32)
BX_RET 14, $noreg, implicit $r0
...
---
name: test_select_ptr
# CHECK-LABEL: name: test_select_ptr
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
body: |
bb.0:
liveins: $r0, $r1, $r2
%0(p0) = COPY $r0
%1(p0) = COPY $r1
%2(s1) = G_CONSTANT i1 0
%3(p0) = G_SELECT %2(s1), %0, %1
; G_SELECT with p0 is legal, so we should find it unchanged in the output
; CHECK: {{%[0-9]+}}:_(p0) = G_SELECT {{%[0-9]+}}(s1), {{%[0-9]+}}, {{%[0-9]+}}
$r0 = COPY %3(p0)
BX_RET 14, $noreg, implicit $r0
...
---
name: test_select_s16
# CHECK-LABEL: name: test_select_s16
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
- { id: 4, class: _ }
- { id: 5, class: _ }
- { id: 6, class: _ }
body: |
bb.0:
liveins: $r0, $r1, $r2
%0(s32) = COPY $r0
%1(s16) = G_TRUNC %0(s32)
%2(s32) = COPY $r1
%3(s16) = G_TRUNC %2(s32)
%4(s1) = G_CONSTANT i1 1
%5(s16) = G_SELECT %4(s1), %1, %3
; G_SELECT with s16 should extend
; CHECK-NOT: {{%[0-9]+}}:_(s16) = G_SELECT {{%[0-9]+}}(s1), {{%[0-9]+}}, {{%[0-9]+}}
; CHECK: {{%[0-9]+}}:_(s32) = G_SELECT {{%[0-9]+}}(s1), {{%[0-9]+}}, {{%[0-9]+}}
; CHECK-NOT: {{%[0-9]+}}:_(s16) = G_SELECT {{%[0-9]+}}(s1), {{%[0-9]+}}, {{%[0-9]+}}
%6(s32) = G_SEXT %5(s16)
$r0 = COPY %6(s32)
BX_RET 14, $noreg, implicit $r0
...
---
name: test_select_s8
# CHECK-LABEL: name: test_select_s8
legalized: false
# CHECK: legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
- { id: 4, class: _ }
- { id: 5, class: _ }
- { id: 6, class: _ }
body: |
bb.0:
liveins: $r0, $r1, $r2
%0(s32) = COPY $r0
%1(s8) = G_TRUNC %0(s32)
%2(s32) = COPY $r1
%3(s8) = G_TRUNC %2(s32)
%4(s1) = G_CONSTANT i1 1
%5(s8) = G_SELECT %4(s1), %1, %3
; G_SELECT with s8 should extend
; CHECK-NOT: {{%[0-9]+}}:_(s8) = G_SELECT {{%[0-9]+}}(s1), {{%[0-9]+}}, {{%[0-9]+}}
; CHECK: {{%[0-9]+}}:_(s32) = G_SELECT {{%[0-9]+}}(s1), {{%[0-9]+}}, {{%[0-9]+}}
; CHECK-NOT: {{%[0-9]+}}:_(s8) = G_SELECT {{%[0-9]+}}(s1), {{%[0-9]+}}, {{%[0-9]+}}
%6(s32) = G_SEXT %5(s8)
$r0 = COPY %6(s32)
BX_RET 14, $noreg, implicit $r0
...
|
