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
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --include-generated-funcs --version 2
; RUN: llc -mtriple=riscv64 -riscv-enable-copy-propagation -enable-machine-outliner -verify-machineinstrs < %s \
; RUN: | FileCheck %s -check-prefix=RV64I
; The outlined function produced by this test case contains a register to
; register copy, which is at risk of being removed by MachineCopyPropagation
; if it can't see that the copy is used. At the time of writing this test
; case, MCP will remove the copy if it is run after the machine outliner.
define signext i32 @nge(i32 signext %a, i32 signext %b) nounwind {
entry:
%cmp = icmp sge i32 %a, %b
%conv.neg = sext i1 %cmp to i32
ret i32 %conv.neg
}
define signext i32 @ngt(i32 signext %a, i32 signext %b) nounwind {
entry:
%cmp = icmp sgt i32 %a, %b
%conv.neg = sext i1 %cmp to i32
ret i32 %conv.neg
}
define signext i32 @nle(i32 signext %a, i32 signext %b) nounwind {
entry:
%cmp = icmp sle i32 %a, %b
%conv.neg = sext i1 %cmp to i32
ret i32 %conv.neg
}
define signext i32 @nlt(i32 signext %a, i32 signext %b) nounwind {
entry:
%cmp = icmp slt i32 %a, %b
%conv.neg = sext i1 %cmp to i32
ret i32 %conv.neg
}
define signext i32 @main() nounwind {
entry:
%call = tail call signext i32 @nge(i32 signext -2147483648, i32 signext 2147483647)
%cmp.not = icmp eq i32 %call, 0
br i1 %cmp.not, label %if.end, label %if.then
if.then:
tail call void @abort()
unreachable
if.end:
%call1 = tail call signext i32 @nge(i32 signext 2147483647, i32 signext -2147483648)
%cmp2.not = icmp eq i32 %call1, -1
br i1 %cmp2.not, label %if.end4, label %if.then3
if.then3:
tail call void @abort()
unreachable
if.end4:
%call5 = tail call signext i32 @ngt(i32 signext -2147483648, i32 signext 2147483647)
%cmp6.not = icmp eq i32 %call5, 0
br i1 %cmp6.not, label %if.end8, label %if.then7
if.then7:
tail call void @abort()
unreachable
if.end8:
%call9 = tail call signext i32 @ngt(i32 signext 2147483647, i32 signext -2147483648)
%cmp10.not = icmp eq i32 %call9, -1
br i1 %cmp10.not, label %if.end12, label %if.then11
if.then11:
tail call void @abort()
unreachable
if.end12:
%call13 = tail call signext i32 @nle(i32 signext -2147483648, i32 signext 2147483647)
%cmp14.not = icmp eq i32 %call13, -1
br i1 %cmp14.not, label %if.end16, label %if.then15
if.then15:
tail call void @abort()
unreachable
if.end16:
%call17 = tail call signext i32 @nle(i32 signext 2147483647, i32 signext -2147483648)
%cmp18.not = icmp eq i32 %call17, 0
br i1 %cmp18.not, label %if.end20, label %if.then19
if.then19:
tail call void @abort()
unreachable
if.end20:
%call21 = tail call signext i32 @nlt(i32 signext -2147483648, i32 signext 2147483647)
%cmp22.not = icmp eq i32 %call21, -1
br i1 %cmp22.not, label %if.end24, label %if.then23
if.then23:
tail call void @abort()
unreachable
if.end24:
%call25 = tail call signext i32 @nlt(i32 signext 2147483647, i32 signext -2147483648)
%cmp26.not = icmp eq i32 %call25, 0
br i1 %cmp26.not, label %if.end28, label %if.then27
if.then27:
tail call void @abort()
unreachable
if.end28:
tail call void @exit(i32 signext 0)
unreachable
}
declare void @abort() noreturn
declare void @exit(i32 signext) noreturn
; RV64I-LABEL: nge:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: slt a0, a0, a1
; RV64I-NEXT: addi a0, a0, -1
; RV64I-NEXT: ret
;
; RV64I-LABEL: ngt:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: slt a0, a1, a0
; RV64I-NEXT: neg a0, a0
; RV64I-NEXT: ret
;
; RV64I-LABEL: nle:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: slt a0, a1, a0
; RV64I-NEXT: addi a0, a0, -1
; RV64I-NEXT: ret
;
; RV64I-LABEL: nlt:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: slt a0, a0, a1
; RV64I-NEXT: neg a0, a0
; RV64I-NEXT: ret
;
; RV64I-LABEL: main:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: addi sp, sp, -32
; RV64I-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: call t0, OUTLINED_FUNCTION_0
; RV64I-NEXT: call nge@plt
; RV64I-NEXT: bnez a0, .LBB4_9
; RV64I-NEXT: # %bb.1: # %if.end
; RV64I-NEXT: lui a1, 524288
; RV64I-NEXT: mv a0, s0
; RV64I-NEXT: call nge@plt
; RV64I-NEXT: li a1, -1
; RV64I-NEXT: bne a0, a1, .LBB4_9
; RV64I-NEXT: # %bb.2: # %if.end4
; RV64I-NEXT: call t0, OUTLINED_FUNCTION_0
; RV64I-NEXT: call ngt@plt
; RV64I-NEXT: bnez a0, .LBB4_9
; RV64I-NEXT: # %bb.3: # %if.end8
; RV64I-NEXT: lui a1, 524288
; RV64I-NEXT: mv a0, s0
; RV64I-NEXT: call ngt@plt
; RV64I-NEXT: li s1, -1
; RV64I-NEXT: bne a0, s1, .LBB4_9
; RV64I-NEXT: # %bb.4: # %if.end12
; RV64I-NEXT: call t0, OUTLINED_FUNCTION_0
; RV64I-NEXT: call nle@plt
; RV64I-NEXT: bne a0, s1, .LBB4_9
; RV64I-NEXT: # %bb.5: # %if.end16
; RV64I-NEXT: lui a1, 524288
; RV64I-NEXT: mv a0, s0
; RV64I-NEXT: call nle@plt
; RV64I-NEXT: bnez a0, .LBB4_9
; RV64I-NEXT: # %bb.6: # %if.end20
; RV64I-NEXT: call t0, OUTLINED_FUNCTION_0
; RV64I-NEXT: call nlt@plt
; RV64I-NEXT: li a1, -1
; RV64I-NEXT: bne a0, a1, .LBB4_9
; RV64I-NEXT: # %bb.7: # %if.end24
; RV64I-NEXT: lui a1, 524288
; RV64I-NEXT: mv a0, s0
; RV64I-NEXT: call nlt@plt
; RV64I-NEXT: bnez a0, .LBB4_9
; RV64I-NEXT: # %bb.8: # %if.end28
; RV64I-NEXT: call exit@plt
; RV64I-NEXT: .LBB4_9: # %if.then
; RV64I-NEXT: call abort@plt
;
; RV64I-LABEL: OUTLINED_FUNCTION_0:
; RV64I: # %bb.0:
; RV64I-NEXT: lui s0, 524288
; RV64I-NEXT: addiw s0, s0, -1
; RV64I-NEXT: lui a0, 524288
; RV64I-NEXT: mv a1, s0
; RV64I-NEXT: jr t0
|
