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
|
; RUN: llc -regalloc=greedy -relocation-model=pic < %s 2>&1 | FileCheck %s
; Without the last chance recoloring, this test fails with:
; "ran out of registers".
; NOTE: With the fix to PR18883, we don't actually run out of registers here
; any more, and so those checks are disabled. This test remains only for general coverage.
; XXX: not llc -regalloc=greedy -relocation-model=pic -lcr-max-depth=0 < %s 2>&1 | FileCheck %s --check-prefix=CHECK-DEPTH
; Test whether failure due to cutoff for depth is reported
; XXX: not llc -regalloc=greedy -relocation-model=pic -lcr-max-interf=1 < %s 2>&1 | FileCheck %s --check-prefix=CHECK-INTERF
; Test whether failure due to cutoff for interference is reported
; RUN: llc -regalloc=greedy -relocation-model=pic -lcr-max-interf=1 -lcr-max-depth=0 -exhaustive-register-search < %s > %t 2>&1
; RUN: FileCheck --input-file=%t %s --check-prefix=CHECK-EXHAUSTIVE
; Test whether exhaustive-register-search can bypass the depth and interference cutoffs of last chance recoloring
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128"
target triple = "i386-apple-macosx"
@fp_dh_36985b17790d59a27994eaab5dcb00ee = external constant [499 x i32]
@fp_dh_18716afa4a5354de0a302c8edb3b0ee1 = external global i32
@fp_dh_20a33cdeefab8f4c8887e82766cb9dcb = external global ptr
@fp_dh_9d93c897906e39883c58b034c8e786b2 = external global [5419648 x i8], align 16
; Function Attrs: nounwind ssp
; CHECK-NOT: ran out of registers during register allocation
; CHECK-INTERF: error: register allocation failed: maximum interference for recoloring reached
; CHECK-DEPTH: error: register allocation failed: maximum depth for recoloring reached
; CHECK-EXHAUSTIVE-NOT: error: register allocation failed: maximum {{depth|interference}} for recoloring reached
define void @fp_dh_f870bf31fd8ffe068450366e3f05389a(ptr %arg) #0 {
bb:
indirectbr ptr undef, [label %bb85, label %bb206]
bb85: ; preds = %bb222, %bb85, %bb
store ptr blockaddress(@fp_dh_f870bf31fd8ffe068450366e3f05389a, %bb206), ptr undef, align 4
indirectbr ptr undef, [label %bb439, label %bb85]
bb206: ; preds = %bb
%tmp = getelementptr [499 x i32], ptr @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 undef
%tmp207 = load i32, ptr %tmp
%tmp208 = add i32 %tmp207, 1
%tmp209 = inttoptr i32 %tmp208 to ptr
indirectbr ptr %tmp209, [label %bb213]
bb213: ; preds = %bb206
%tmp214 = load i32, ptr @fp_dh_18716afa4a5354de0a302c8edb3b0ee1, align 4
%tmp215 = load ptr, ptr @fp_dh_20a33cdeefab8f4c8887e82766cb9dcb, align 4
%tmp216 = urem i32 -717428541, %tmp214
%tmp217 = getelementptr i8, ptr %tmp215, i32 %tmp216
%tmp219 = load i32, ptr %tmp217, align 4
store i32 %tmp219, ptr undef, align 4
%tmp220 = select i1 false, i32 359373646, i32 1677237955
%tmp221 = add i32 %tmp220, 0
indirectbr ptr undef, [label %bb432, label %bb222]
bb222: ; preds = %bb213
%tmp224 = load i32, ptr undef, align 4
%tmp225 = load i32, ptr undef, align 4
%tmp226 = xor i32 %tmp225, %tmp224
%tmp227 = shl i32 %tmp226, 1
%tmp228 = and i32 %tmp227, -2048880334
%tmp229 = sub i32 0, %tmp228
%tmp230 = add i32 0, %tmp229
%tmp231 = xor i32 %tmp230, 1059356227
%tmp232 = mul i32 %tmp231, 1603744721
%tmp233 = urem i32 %tmp232, 259
%tmp234 = getelementptr [259 x i8], ptr getelementptr inbounds ([5419648 x i8], ptr @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 2039075), i32 0, i32 %tmp233
%tmp235 = load i8, ptr %tmp234, align 1
%tmp236 = add i32 %tmp233, 2
%tmp237 = getelementptr [264 x i8], ptr getelementptr inbounds ([5419648 x i8], ptr @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 3388166), i32 0, i32 %tmp236
%tmp238 = load i8, ptr %tmp237, align 1
%tmp239 = getelementptr [265 x i8], ptr getelementptr inbounds ([5419648 x i8], ptr @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 1325165), i32 0, i32 0
%tmp240 = load i8, ptr %tmp239, align 1
%tmp241 = add i32 %tmp233, 6
%tmp242 = trunc i32 %tmp241 to i8
%tmp243 = mul i8 %tmp242, -3
%tmp244 = add i8 %tmp243, 3
%tmp245 = mul i8 %tmp242, -6
%tmp246 = and i8 %tmp245, 6
%tmp247 = sub i8 0, %tmp246
%tmp248 = add i8 %tmp244, %tmp247
%tmp249 = load i8, ptr undef, align 1
%tmp250 = xor i8 %tmp235, 17
%tmp251 = xor i8 %tmp250, %tmp238
%tmp252 = xor i8 %tmp251, %tmp240
%tmp253 = xor i8 %tmp252, %tmp249
%tmp254 = xor i8 %tmp253, %tmp248
%tmp255 = zext i8 %tmp254 to i16
%tmp256 = shl nuw i16 %tmp255, 8
%tmp257 = load i8, ptr null, align 1
%tmp258 = load i32, ptr @fp_dh_18716afa4a5354de0a302c8edb3b0ee1, align 4
%tmp259 = load ptr, ptr @fp_dh_20a33cdeefab8f4c8887e82766cb9dcb, align 4
%tmp260 = urem i32 -717428541, %tmp258
%tmp261 = getelementptr i8, ptr %tmp259, i32 %tmp260
%tmp263 = load i32, ptr %tmp261, align 4
%tmp264 = xor i32 %tmp263, 0
%tmp265 = shl i32 %tmp264, 1
%tmp266 = and i32 %tmp265, -1312119832
%tmp267 = sub i32 0, %tmp266
%tmp268 = add i32 0, %tmp267
%tmp269 = xor i32 %tmp268, 623994670
%tmp270 = mul i32 %tmp269, 1603744721
%tmp271 = urem i32 %tmp270, 259
%tmp274 = add i32 %tmp271, 3
%tmp275 = getelementptr [265 x i8], ptr getelementptr inbounds ([5419648 x i8], ptr @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 1325165), i32 0, i32 %tmp274
%tmp276 = load i8, ptr %tmp275, align 1
%tmp277 = add i32 %tmp271, 6
%tmp278 = trunc i32 %tmp277 to i8
%tmp279 = mul i8 %tmp278, -3
%tmp280 = add i8 %tmp279, 31
%tmp281 = add i8 %tmp280, 0
%tmp282 = xor i8 %tmp257, 13
%tmp283 = xor i8 %tmp282, 0
%tmp284 = xor i8 %tmp283, 0
%tmp285 = xor i8 %tmp284, %tmp276
%tmp286 = xor i8 %tmp285, %tmp281
%tmp287 = zext i8 %tmp286 to i16
%tmp288 = or i16 %tmp287, %tmp256
%tmp289 = xor i16 %tmp288, 14330
%tmp290 = add i16 0, %tmp289
%tmp291 = add i16 %tmp290, -14330
%tmp292 = zext i16 %tmp291 to i32
%tmp293 = add i16 %tmp290, -14330
%tmp294 = lshr i16 %tmp293, 12
%tmp295 = zext i16 %tmp294 to i32
%tmp296 = sub i32 0, %tmp295
%tmp297 = xor i32 %tmp296, 16
%tmp298 = add i32 0, %tmp297
%tmp299 = and i32 %tmp298, 31
%tmp300 = and i32 %tmp292, 30864
%tmp301 = shl i32 %tmp300, %tmp299
%tmp302 = xor i32 0, %tmp301
%tmp303 = add i32 0, %tmp302
%tmp304 = and i32 %tmp298, 31
%tmp305 = and i32 %tmp303, 25568
%tmp306 = lshr i32 %tmp305, %tmp304
%tmp307 = xor i32 0, %tmp306
%tmp308 = add i32 0, %tmp307
%tmp309 = trunc i32 %tmp308 to i16
%tmp310 = shl i16 %tmp309, 1
%tmp311 = and i16 %tmp310, -4648
%tmp312 = shl i16 %tmp309, 1
%tmp313 = and i16 %tmp312, 4646
%tmp314 = xor i16 %tmp311, 17700
%tmp315 = xor i16 %tmp313, 17700
%tmp316 = add i16 %tmp314, %tmp315
%tmp317 = and i16 %tmp314, %tmp315
%tmp318 = shl nuw i16 %tmp317, 1
%tmp319 = sub i16 0, %tmp318
%tmp320 = add i16 %tmp316, %tmp319
%tmp321 = and i16 %tmp320, 29906
%tmp322 = xor i16 %tmp309, 14953
%tmp323 = add i16 0, %tmp322
%tmp324 = sub i16 0, %tmp321
%tmp325 = xor i16 %tmp324, %tmp323
%tmp326 = add i16 0, %tmp325
%tmp327 = add i32 %tmp221, 1161362661
%tmp333 = icmp eq i16 %tmp326, 14953
%tmp334 = add i32 %tmp327, -1456704142
%tmp335 = zext i1 %tmp333 to i32
%tmp336 = add i32 %tmp334, %tmp335
%tmp337 = getelementptr [499 x i32], ptr @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 %tmp336
%tmp338 = load i32, ptr %tmp337
%tmp339 = add i32 %tmp338, 1
%tmp340 = inttoptr i32 %tmp339 to ptr
indirectbr ptr %tmp340, [label %bb85, label %bb439]
bb432: ; preds = %bb432, %bb213
%tmp433 = phi i32 [ %tmp221, %bb213 ], [ %tmp433, %bb432 ]
%tmp434 = add i32 %tmp433, 1022523279
%tmp435 = getelementptr [499 x i32], ptr @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 %tmp434
%tmp436 = load i32, ptr %tmp435
%tmp437 = add i32 %tmp436, 1
%tmp438 = inttoptr i32 %tmp437 to ptr
indirectbr ptr %tmp438, [label %bb432]
bb439: ; preds = %bb222, %bb85
ret void
}
attributes #0 = { nounwind ssp "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
