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
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
| ; RUN: opt -O3 -S < %s | FileCheck %s
; Test to verify that constants aren't folded when the rounding mode is unknown.
; CHECK-LABEL: @f1
; CHECK: call double @llvm.experimental.constrained.fdiv.f64
define double @f1() #0 {
entry:
%div = call double @llvm.experimental.constrained.fdiv.f64(
double 1.000000e+00,
double 1.000000e+01,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %div
}
; Verify that 'a - 0' isn't simplified to 'a' when the rounding mode is unknown.
;
; double f2(double a) {
; // Because the result of '0 - 0' is negative zero if rounding mode is
; // downward, this shouldn't be simplified.
; return a - 0.0;
; }
;
; CHECK-LABEL: @f2
; CHECK: call double @llvm.experimental.constrained.fsub.f64
define double @f2(double %a) #0 {
entry:
%div = call double @llvm.experimental.constrained.fsub.f64(
double %a, double 0.000000e+00,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %div
}
; Verify that '-((-a)*b)' isn't simplified to 'a*b' when the rounding mode is
; unknown.
;
; double f3(double a, double b) {
; // Because the intermediate value involved in this calculation may require
; // rounding, this shouldn't be simplified.
; return -((-a)*b);
; }
;
; CHECK-LABEL: @f3
; CHECK: call double @llvm.experimental.constrained.fsub.f64
; CHECK: call double @llvm.experimental.constrained.fmul.f64
; CHECK: call double @llvm.experimental.constrained.fsub.f64
define double @f3(double %a, double %b) #0 {
entry:
%sub = call double @llvm.experimental.constrained.fsub.f64(
double -0.000000e+00, double %a,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%mul = call double @llvm.experimental.constrained.fmul.f64(
double %sub, double %b,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%ret = call double @llvm.experimental.constrained.fsub.f64(
double -0.000000e+00,
double %mul,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %ret
}
; Verify that FP operations are not performed speculatively when FP exceptions
; are not being ignored.
;
; double f4(int n, double a) {
; // Because a + 1 may overflow, this should not be simplified.
; if (n > 0)
; return a + 1.0;
; return a;
; }
;
;
; CHECK-LABEL: @f4
; CHECK-NOT: select
; CHECK: br i1 %cmp
define double @f4(i32 %n, double %a) #0 {
entry:
%cmp = icmp sgt i32 %n, 0
br i1 %cmp, label %if.then, label %if.end
if.then:
%add = call double @llvm.experimental.constrained.fadd.f64(
double 1.000000e+00, double %a,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
br label %if.end
if.end:
%a.0 = phi double [%add, %if.then], [ %a, %entry ]
ret double %a.0
}
; Verify that sqrt(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f5
; CHECK: call double @llvm.experimental.constrained.sqrt
define double @f5() #0 {
entry:
%result = call double @llvm.experimental.constrained.sqrt.f64(double 42.0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that pow(42.1, 3.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f6
; CHECK: call double @llvm.experimental.constrained.pow
define double @f6() #0 {
entry:
%result = call double @llvm.experimental.constrained.pow.f64(double 42.1,
double 3.0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that powi(42.1, 3) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f7
; CHECK: call double @llvm.experimental.constrained.powi
define double @f7() #0 {
entry:
%result = call double @llvm.experimental.constrained.powi.f64(double 42.1,
i32 3,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that sin(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f8
; CHECK: call double @llvm.experimental.constrained.sin
define double @f8() #0 {
entry:
%result = call double @llvm.experimental.constrained.sin.f64(double 42.0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that cos(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f9
; CHECK: call double @llvm.experimental.constrained.cos
define double @f9() #0 {
entry:
%result = call double @llvm.experimental.constrained.cos.f64(double 42.0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that exp(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f10
; CHECK: call double @llvm.experimental.constrained.exp
define double @f10() #0 {
entry:
%result = call double @llvm.experimental.constrained.exp.f64(double 42.0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that exp2(42.1) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f11
; CHECK: call double @llvm.experimental.constrained.exp2
define double @f11() #0 {
entry:
%result = call double @llvm.experimental.constrained.exp2.f64(double 42.1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that log(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f12
; CHECK: call double @llvm.experimental.constrained.log
define double @f12() #0 {
entry:
%result = call double @llvm.experimental.constrained.log.f64(double 42.0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that log10(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f13
; CHECK: call double @llvm.experimental.constrained.log10
define double @f13() #0 {
entry:
%result = call double @llvm.experimental.constrained.log10.f64(double 42.0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that log2(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f14
; CHECK: call double @llvm.experimental.constrained.log2
define double @f14() #0 {
entry:
%result = call double @llvm.experimental.constrained.log2.f64(double 42.0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that rint(42.1) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f15
; CHECK: call double @llvm.experimental.constrained.rint
define double @f15() #0 {
entry:
%result = call double @llvm.experimental.constrained.rint.f64(double 42.1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that nearbyint(42.1) isn't simplified when the rounding mode is
; unknown.
; CHECK-LABEL: f16
; CHECK: call double @llvm.experimental.constrained.nearbyint
define double @f16() #0 {
entry:
%result = call double @llvm.experimental.constrained.nearbyint.f64(
double 42.1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that fma(42.1) isn't simplified when the rounding mode is
; unknown.
; CHECK-LABEL: f17
; CHECK: call double @llvm.experimental.constrained.fma
define double @f17() #0 {
entry:
%result = call double @llvm.experimental.constrained.fma.f64(double 42.1, double 42.1, double 42.1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that fptoui(42.1) isn't simplified when the rounding mode is
; unknown.
; CHECK-LABEL: f18
; CHECK: call zeroext i32 @llvm.experimental.constrained.fptoui
define zeroext i32 @f18() #0 {
entry:
%result = call zeroext i32 @llvm.experimental.constrained.fptoui.i32.f64(
double 42.1,
metadata !"fpexcept.strict") #0
ret i32 %result
}
; Verify that fptosi(42.1) isn't simplified when the rounding mode is
; unknown.
; CHECK-LABEL: f19
; CHECK: call i32 @llvm.experimental.constrained.fptosi
define i32 @f19() #0 {
entry:
%result = call i32 @llvm.experimental.constrained.fptosi.i32.f64(double 42.1,
metadata !"fpexcept.strict") #0
ret i32 %result
}
; Verify that fptrunc(42.1) isn't simplified when the rounding mode is
; unknown.
; CHECK-LABEL: f20
; CHECK: call float @llvm.experimental.constrained.fptrunc
define float @f20() #0 {
entry:
%result = call float @llvm.experimental.constrained.fptrunc.f32.f64(
double 42.1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret float %result
}
; Verify that fpext(42.1) isn't simplified when the rounding mode is
; unknown.
; CHECK-LABEL: f21
; CHECK: call double @llvm.experimental.constrained.fpext
define double @f21() #0 {
entry:
%result = call double @llvm.experimental.constrained.fpext.f64.f32(float 42.0,
metadata !"fpexcept.strict") #0
ret double %result
}
; Verify that lrint(42.1) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f22
; CHECK: call i32 @llvm.experimental.constrained.lrint
define i32 @f22() #0 {
entry:
%result = call i32 @llvm.experimental.constrained.lrint.i32.f64(double 42.1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret i32 %result
}
; Verify that lrintf(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f23
; CHECK: call i32 @llvm.experimental.constrained.lrint
define i32 @f23() #0 {
entry:
%result = call i32 @llvm.experimental.constrained.lrint.i32.f32(float 42.0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret i32 %result
}
; Verify that llrint(42.1) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f24
; CHECK: call i64 @llvm.experimental.constrained.llrint
define i64 @f24() #0 {
entry:
%result = call i64 @llvm.experimental.constrained.llrint.i64.f64(double 42.1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret i64 %result
}
; Verify that llrint(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f25
; CHECK: call i64 @llvm.experimental.constrained.llrint
define i64 @f25() #0 {
entry:
%result = call i64 @llvm.experimental.constrained.llrint.i64.f32(float 42.0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret i64 %result
}
; Verify that lround(42.1) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f26
; CHECK: call i32 @llvm.experimental.constrained.lround
define i32 @f26() #0 {
entry:
%result = call i32 @llvm.experimental.constrained.lround.i32.f64(double 42.1,
metadata !"fpexcept.strict") #0
ret i32 %result
}
; Verify that lround(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f27
; CHECK: call i32 @llvm.experimental.constrained.lround
define i32 @f27() #0 {
entry:
%result = call i32 @llvm.experimental.constrained.lround.i32.f32(float 42.0,
metadata !"fpexcept.strict") #0
ret i32 %result
}
; Verify that llround(42.1) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f28
; CHECK: call i64 @llvm.experimental.constrained.llround
define i64 @f28() #0 {
entry:
%result = call i64 @llvm.experimental.constrained.llround.i64.f64(double 42.1,
metadata !"fpexcept.strict") #0
ret i64 %result
}
; Verify that llround(42.0) isn't simplified when the rounding mode is unknown.
; CHECK-LABEL: f29
; CHECK: call i64 @llvm.experimental.constrained.llround
define i64 @f29() #0 {
entry:
%result = call i64 @llvm.experimental.constrained.llround.i64.f32(float 42.0,
metadata !"fpexcept.strict") #0
ret i64 %result
}
attributes #0 = { strictfp }
@llvm.fp.env = thread_local global i8 zeroinitializer, section "llvm.metadata"
declare double @llvm.experimental.constrained.fdiv.f64(double, double, metadata, metadata)
declare double @llvm.experimental.constrained.fmul.f64(double, double, metadata, metadata)
declare double @llvm.experimental.constrained.fadd.f64(double, double, metadata, metadata)
declare double @llvm.experimental.constrained.fsub.f64(double, double, metadata, metadata)
declare double @llvm.experimental.constrained.sqrt.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.pow.f64(double, double, metadata, metadata)
declare double @llvm.experimental.constrained.powi.f64(double, i32, metadata, metadata)
declare double @llvm.experimental.constrained.sin.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.cos.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.exp.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.exp2.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.log.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.log10.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.log2.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.rint.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.nearbyint.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.fma.f64(double, double, double, metadata, metadata)
declare i32 @llvm.experimental.constrained.fptosi.i32.f64(double, metadata)
declare i32 @llvm.experimental.constrained.fptoui.i32.f64(double, metadata)
declare float @llvm.experimental.constrained.fptrunc.f32.f64(double, metadata, metadata)
declare double @llvm.experimental.constrained.fpext.f64.f32(float, metadata)
declare i32 @llvm.experimental.constrained.lrint.i32.f64(double, metadata, metadata)
declare i32 @llvm.experimental.constrained.lrint.i32.f32(float, metadata, metadata)
declare i64 @llvm.experimental.constrained.llrint.i64.f64(double, metadata, metadata)
declare i64 @llvm.experimental.constrained.llrint.i64.f32(float, metadata, metadata)
declare i32 @llvm.experimental.constrained.lround.i32.f64(double, metadata)
declare i32 @llvm.experimental.constrained.lround.i32.f32(float, metadata)
declare i64 @llvm.experimental.constrained.llround.i64.f64(double, metadata)
declare i64 @llvm.experimental.constrained.llround.i64.f32(float, metadata)
|