1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -instcombine -S | FileCheck %s
4 ; (X < C1) ? C1 : MIN(X, C2)
5 define float @clamp_float_fast_ordered_strict_maxmin(float %x) {
7 ; CHECK-LABEL: @clamp_float_fast_ordered_strict_maxmin(
8 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp fast olt float [[X:%.*]], 2.550000e+02
9 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2]], float [[X]], float 2.550000e+02
10 ; CHECK-NEXT: [[DOTINV:%.*]] = fcmp fast oge float [[MIN]], 1.000000e+00
11 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[DOTINV]], float [[MIN]], float 1.000000e+00
12 ; CHECK-NEXT: ret float [[R1]]
14 %cmp2 = fcmp fast olt float %x, 255.0
15 %min = select i1 %cmp2, float %x, float 255.0
16 %cmp1 = fcmp fast olt float %x, 1.0
17 %r = select i1 %cmp1, float 1.0, float %min
21 ; (X <= C1) ? C1 : MIN(X, C2)
22 define float @clamp_float_fast_ordered_nonstrict_maxmin(float %x) {
24 ; CHECK-LABEL: @clamp_float_fast_ordered_nonstrict_maxmin(
25 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp fast olt float [[X:%.*]], 2.550000e+02
26 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2]], float [[X]], float 2.550000e+02
27 ; CHECK-NEXT: [[DOTINV:%.*]] = fcmp fast oge float [[MIN]], 1.000000e+00
28 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[DOTINV]], float [[MIN]], float 1.000000e+00
29 ; CHECK-NEXT: ret float [[R1]]
31 %cmp2 = fcmp fast olt float %x, 255.0
32 %min = select i1 %cmp2, float %x, float 255.0
33 %cmp1 = fcmp fast ole float %x, 1.0
34 %r = select i1 %cmp1, float 1.0, float %min
38 ; (X > C1) ? C1 : MAX(X, C2)
39 define float @clamp_float_fast_ordered_strict_minmax(float %x) {
41 ; CHECK-LABEL: @clamp_float_fast_ordered_strict_minmax(
42 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp fast ogt float [[X:%.*]], 1.000000e+00
43 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2]], float [[X]], float 1.000000e+00
44 ; CHECK-NEXT: [[DOTINV:%.*]] = fcmp fast ole float [[MAX]], 2.550000e+02
45 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[DOTINV]], float [[MAX]], float 2.550000e+02
46 ; CHECK-NEXT: ret float [[R1]]
48 %cmp2 = fcmp fast ogt float %x, 1.0
49 %max = select i1 %cmp2, float %x, float 1.0
50 %cmp1 = fcmp fast ogt float %x, 255.0
51 %r = select i1 %cmp1, float 255.0, float %max
55 ; (X >= C1) ? C1 : MAX(X, C2)
56 define float @clamp_float_fast_ordered_nonstrict_minmax(float %x) {
58 ; CHECK-LABEL: @clamp_float_fast_ordered_nonstrict_minmax(
59 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp fast ogt float [[X:%.*]], 1.000000e+00
60 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2]], float [[X]], float 1.000000e+00
61 ; CHECK-NEXT: [[DOTINV:%.*]] = fcmp fast ole float [[MAX]], 2.550000e+02
62 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[DOTINV]], float [[MAX]], float 2.550000e+02
63 ; CHECK-NEXT: ret float [[R1]]
65 %cmp2 = fcmp fast ogt float %x, 1.0
66 %max = select i1 %cmp2, float %x, float 1.0
67 %cmp1 = fcmp fast oge float %x, 255.0
68 %r = select i1 %cmp1, float 255.0, float %max
73 ; The same for unordered
75 ; (X < C1) ? C1 : MIN(X, C2)
76 define float @clamp_float_fast_unordered_strict_maxmin(float %x) {
78 ; CHECK-LABEL: @clamp_float_fast_unordered_strict_maxmin(
79 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp fast oge float [[X:%.*]], 2.550000e+02
80 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2_INV]], float 2.550000e+02, float [[X]]
81 ; CHECK-NEXT: [[DOTINV:%.*]] = fcmp fast oge float [[MIN]], 1.000000e+00
82 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[DOTINV]], float [[MIN]], float 1.000000e+00
83 ; CHECK-NEXT: ret float [[R1]]
85 %cmp2 = fcmp fast ult float %x, 255.0
86 %min = select i1 %cmp2, float %x, float 255.0
87 %cmp1 = fcmp fast ult float %x, 1.0
88 %r = select i1 %cmp1, float 1.0, float %min
92 ; (X <= C1) ? C1 : MIN(X, C2)
93 define float @clamp_float_fast_unordered_nonstrict_maxmin(float %x) {
95 ; CHECK-LABEL: @clamp_float_fast_unordered_nonstrict_maxmin(
96 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp fast oge float [[X:%.*]], 2.550000e+02
97 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2_INV]], float 2.550000e+02, float [[X]]
98 ; CHECK-NEXT: [[DOTINV:%.*]] = fcmp fast oge float [[MIN]], 1.000000e+00
99 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[DOTINV]], float [[MIN]], float 1.000000e+00
100 ; CHECK-NEXT: ret float [[R1]]
102 %cmp2 = fcmp fast ult float %x, 255.0
103 %min = select i1 %cmp2, float %x, float 255.0
104 %cmp1 = fcmp fast ule float %x, 1.0
105 %r = select i1 %cmp1, float 1.0, float %min
109 ; (X > C1) ? C1 : MAX(X, C2)
110 define float @clamp_float_fast_unordered_strict_minmax(float %x) {
112 ; CHECK-LABEL: @clamp_float_fast_unordered_strict_minmax(
113 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp fast ole float [[X:%.*]], 1.000000e+00
114 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2_INV]], float 1.000000e+00, float [[X]]
115 ; CHECK-NEXT: [[DOTINV:%.*]] = fcmp fast ole float [[MAX]], 2.550000e+02
116 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[DOTINV]], float [[MAX]], float 2.550000e+02
117 ; CHECK-NEXT: ret float [[R1]]
119 %cmp2 = fcmp fast ugt float %x, 1.0
120 %max = select i1 %cmp2, float %x, float 1.0
121 %cmp1 = fcmp fast ugt float %x, 255.0
122 %r = select i1 %cmp1, float 255.0, float %max
126 ; (X >= C1) ? C1 : MAX(X, C2)
127 define float @clamp_float_fast_unordered_nonstrict_minmax(float %x) {
129 ; CHECK-LABEL: @clamp_float_fast_unordered_nonstrict_minmax(
130 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp fast ole float [[X:%.*]], 1.000000e+00
131 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2_INV]], float 1.000000e+00, float [[X]]
132 ; CHECK-NEXT: [[DOTINV:%.*]] = fcmp fast ole float [[MAX]], 2.550000e+02
133 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[DOTINV]], float [[MAX]], float 2.550000e+02
134 ; CHECK-NEXT: ret float [[R1]]
136 %cmp2 = fcmp fast ugt float %x, 1.0
137 %max = select i1 %cmp2, float %x, float 1.0
138 %cmp1 = fcmp fast uge float %x, 255.0
139 %r = select i1 %cmp1, float 255.0, float %max
143 ; Some more checks with fast
145 ; (X > 1.0) ? min(x, 255.0) : 1.0
146 ; That did not match because select was in inverse order.
147 define float @clamp_test_1(float %x) {
148 ; CHECK-LABEL: @clamp_test_1(
149 ; CHECK-NEXT: [[INNER_CMP_INV:%.*]] = fcmp fast oge float [[X:%.*]], 2.550000e+02
150 ; CHECK-NEXT: [[INNER_SEL:%.*]] = select i1 [[INNER_CMP_INV]], float 2.550000e+02, float [[X]]
151 ; CHECK-NEXT: [[DOTINV:%.*]] = fcmp fast oge float [[INNER_SEL]], 1.000000e+00
152 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[DOTINV]], float [[INNER_SEL]], float 1.000000e+00
153 ; CHECK-NEXT: ret float [[R1]]
155 %inner_cmp = fcmp fast ult float %x, 255.0
156 %inner_sel = select i1 %inner_cmp, float %x, float 255.0
157 %outer_cmp = fcmp fast ugt float %x, 1.0
158 %r = select i1 %outer_cmp, float %inner_sel, float 1.0
162 ; And something negative
164 ; Like @clamp_test_1 but HighConst < LowConst
165 define float @clamp_negative_wrong_const(float %x) {
166 ; CHECK-LABEL: @clamp_negative_wrong_const(
167 ; CHECK-NEXT: [[INNER_CMP_INV:%.*]] = fcmp fast oge float [[X:%.*]], 2.550000e+02
168 ; CHECK-NEXT: [[INNER_SEL:%.*]] = select i1 [[INNER_CMP_INV]], float 2.550000e+02, float [[X]]
169 ; CHECK-NEXT: [[OUTER_CMP:%.*]] = fcmp fast ugt float [[X]], 5.120000e+02
170 ; CHECK-NEXT: [[R:%.*]] = select i1 [[OUTER_CMP]], float [[INNER_SEL]], float 5.120000e+02
171 ; CHECK-NEXT: ret float [[R]]
173 %inner_cmp = fcmp fast ult float %x, 255.0
174 %inner_sel = select i1 %inner_cmp, float %x, float 255.0
175 %outer_cmp = fcmp fast ugt float %x, 512.0
176 %r = select i1 %outer_cmp, float %inner_sel, float 512.0
180 ; Like @clamp_test_1 but both are min
181 define float @clamp_negative_same_op(float %x) {
182 ; CHECK-LABEL: @clamp_negative_same_op(
183 ; CHECK-NEXT: [[INNER_CMP_INV:%.*]] = fcmp fast oge float [[X:%.*]], 2.550000e+02
184 ; CHECK-NEXT: [[INNER_SEL:%.*]] = select i1 [[INNER_CMP_INV]], float 2.550000e+02, float [[X]]
185 ; CHECK-NEXT: [[OUTER_CMP:%.*]] = fcmp fast ult float [[X]], 1.000000e+00
186 ; CHECK-NEXT: [[R:%.*]] = select i1 [[OUTER_CMP]], float [[INNER_SEL]], float 1.000000e+00
187 ; CHECK-NEXT: ret float [[R]]
189 %inner_cmp = fcmp fast ult float %x, 255.0
190 %inner_sel = select i1 %inner_cmp, float %x, float 255.0
191 %outer_cmp = fcmp fast ult float %x, 1.0
192 %r = select i1 %outer_cmp, float %inner_sel, float 1.0
197 ; And now without fast.
199 ; First, check that we don't do bad things in the presence of signed zeros
200 define float @clamp_float_with_zero1(float %x) {
201 ; CHECK-LABEL: @clamp_float_with_zero1(
202 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp fast olt float [[X:%.*]], 2.550000e+02
203 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2]], float [[X]], float 2.550000e+02
204 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ole float [[X]], 0.000000e+00
205 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 0.000000e+00, float [[MIN]]
206 ; CHECK-NEXT: ret float [[R]]
208 %cmp2 = fcmp fast olt float %x, 255.0
209 %min = select i1 %cmp2, float %x, float 255.0
210 %cmp1 = fcmp ole float %x, 0.0
211 %r = select i1 %cmp1, float 0.0, float %min
215 define float @clamp_float_with_zero2(float %x) {
216 ; CHECK-LABEL: @clamp_float_with_zero2(
217 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp fast olt float [[X:%.*]], 2.550000e+02
218 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2]], float [[X]], float 2.550000e+02
219 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp olt float [[X]], 0.000000e+00
220 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 0.000000e+00, float [[MIN]]
221 ; CHECK-NEXT: ret float [[R]]
223 %cmp2 = fcmp fast olt float %x, 255.0
224 %min = select i1 %cmp2, float %x, float 255.0
225 %cmp1 = fcmp olt float %x, 0.0
226 %r = select i1 %cmp1, float 0.0, float %min
230 ; Also, here we care more about the ordering of the inner min/max, so
231 ; two times more cases.
232 ; TODO: that is not implemented yet, so these checks are for the
233 ; future. This means that checks below can just check that
234 ; "fcmp.*%x" happens twice for each label.
236 ; (X < C1) ? C1 : MIN(X, C2)
237 define float @clamp_float_ordered_strict_maxmin1(float %x) {
239 ; CHECK-LABEL: @clamp_float_ordered_strict_maxmin1(
240 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp olt float [[X:%.*]], 2.550000e+02
241 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2]], float [[X]], float 2.550000e+02
242 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp olt float [[X]], 1.000000e+00
243 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 1.000000e+00, float [[MIN]]
244 ; CHECK-NEXT: ret float [[R]]
246 %cmp2 = fcmp olt float %x, 255.0 ; X is NaN => false
247 %min = select i1 %cmp2, float %x, float 255.0 ; 255.0
248 %cmp1 = fcmp olt float %x, 1.0 ; false
249 %r = select i1 %cmp1, float 1.0, float %min ; min (255.0)
253 define float @clamp_float_ordered_strict_maxmin2(float %x) {
255 ; CHECK-LABEL: @clamp_float_ordered_strict_maxmin2(
256 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp oge float [[X:%.*]], 2.550000e+02
257 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2_INV]], float 2.550000e+02, float [[X]]
258 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp olt float [[X]], 1.000000e+00
259 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 1.000000e+00, float [[MIN]]
260 ; CHECK-NEXT: ret float [[R]]
262 %cmp2 = fcmp ult float %x, 255.0 ; X is NaN => true
263 %min = select i1 %cmp2, float %x, float 255.0 ; NaN
264 %cmp1 = fcmp olt float %x, 1.0 ; false
265 %r = select i1 %cmp1, float 1.0, float %min ; min (NaN)
269 ; (X <= C1) ? C1 : MIN(X, C2)
270 define float @clamp_float_ordered_nonstrict_maxmin1(float %x) {
272 ; CHECK-LABEL: @clamp_float_ordered_nonstrict_maxmin1(
273 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp olt float [[X:%.*]], 2.550000e+02
274 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2]], float [[X]], float 2.550000e+02
275 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ole float [[X]], 1.000000e+00
276 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 1.000000e+00, float [[MIN]]
277 ; CHECK-NEXT: ret float [[R]]
279 %cmp2 = fcmp olt float %x, 255.0 ; X is NaN => false
280 %min = select i1 %cmp2, float %x, float 255.0 ; 255.0
281 %cmp1 = fcmp ole float %x, 1.0 ; false
282 %r = select i1 %cmp1, float 1.0, float %min ; min (255.0)
286 define float @clamp_float_ordered_nonstrict_maxmin2(float %x) {
288 ; CHECK-LABEL: @clamp_float_ordered_nonstrict_maxmin2(
289 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp oge float [[X:%.*]], 2.550000e+02
290 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2_INV]], float 2.550000e+02, float [[X]]
291 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ole float [[X]], 1.000000e+00
292 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 1.000000e+00, float [[MIN]]
293 ; CHECK-NEXT: ret float [[R]]
295 %cmp2 = fcmp ult float %x, 255.0 ; x is NaN => true
296 %min = select i1 %cmp2, float %x, float 255.0 ; NaN
297 %cmp1 = fcmp ole float %x, 1.0 ; false
298 %r = select i1 %cmp1, float 1.0, float %min ; min (NaN)
302 ; (X > C1) ? C1 : MAX(X, C2)
303 define float @clamp_float_ordered_strict_minmax1(float %x) {
305 ; CHECK-LABEL: @clamp_float_ordered_strict_minmax1(
306 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp ogt float [[X:%.*]], 1.000000e+00
307 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2]], float [[X]], float 1.000000e+00
308 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ogt float [[X]], 2.550000e+02
309 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 2.550000e+02, float [[MAX]]
310 ; CHECK-NEXT: ret float [[R]]
312 %cmp2 = fcmp ogt float %x, 1.0 ; x is NaN => false
313 %max = select i1 %cmp2, float %x, float 1.0 ; 1.0
314 %cmp1 = fcmp ogt float %x, 255.0 ; false
315 %r = select i1 %cmp1, float 255.0, float %max ; max (1.0)
319 define float @clamp_float_ordered_strict_minmax2(float %x) {
321 ; CHECK-LABEL: @clamp_float_ordered_strict_minmax2(
322 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp ole float [[X:%.*]], 1.000000e+00
323 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2_INV]], float 1.000000e+00, float [[X]]
324 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ogt float [[X]], 2.550000e+02
325 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 2.550000e+02, float [[MAX]]
326 ; CHECK-NEXT: ret float [[R]]
328 %cmp2 = fcmp ugt float %x, 1.0 ; x is NaN => true
329 %max = select i1 %cmp2, float %x, float 1.0 ; NaN
330 %cmp1 = fcmp ogt float %x, 255.0 ; false
331 %r = select i1 %cmp1, float 255.0, float %max ; max (NaN)
335 ; (X >= C1) ? C1 : MAX(X, C2)
336 define float @clamp_float_ordered_nonstrict_minmax1(float %x) {
338 ; CHECK-LABEL: @clamp_float_ordered_nonstrict_minmax1(
339 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp ogt float [[X:%.*]], 1.000000e+00
340 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2]], float [[X]], float 1.000000e+00
341 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp oge float [[X]], 2.550000e+02
342 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 2.550000e+02, float [[MAX]]
343 ; CHECK-NEXT: ret float [[R]]
345 %cmp2 = fcmp ogt float %x, 1.0 ; x is NaN => false
346 %max = select i1 %cmp2, float %x, float 1.0 ; 1.0
347 %cmp1 = fcmp oge float %x, 255.0 ; false
348 %r = select i1 %cmp1, float 255.0, float %max ; max (1.0)
352 define float @clamp_float_ordered_nonstrict_minmax2(float %x) {
354 ; CHECK-LABEL: @clamp_float_ordered_nonstrict_minmax2(
355 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp ole float [[X:%.*]], 1.000000e+00
356 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2_INV]], float 1.000000e+00, float [[X]]
357 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp oge float [[X]], 2.550000e+02
358 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 2.550000e+02, float [[MAX]]
359 ; CHECK-NEXT: ret float [[R]]
361 %cmp2 = fcmp ugt float %x, 1.0 ; x is NaN => true
362 %max = select i1 %cmp2, float %x, float 1.0 ; NaN
363 %cmp1 = fcmp oge float %x, 255.0 ; false
364 %r = select i1 %cmp1, float 255.0, float %max ; max (NaN)
369 ; The same for unordered
371 ; (X < C1) ? C1 : MIN(X, C2)
372 define float @clamp_float_unordered_strict_maxmin1(float %x) {
374 ; CHECK-LABEL: @clamp_float_unordered_strict_maxmin1(
375 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp olt float [[X:%.*]], 2.550000e+02
376 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2]], float [[X]], float 2.550000e+02
377 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ult float [[X]], 1.000000e+00
378 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 1.000000e+00, float [[MIN]]
379 ; CHECK-NEXT: ret float [[R]]
381 %cmp2 = fcmp olt float %x, 255.0 ; x is NaN => false
382 %min = select i1 %cmp2, float %x, float 255.0 ; 255.0
383 %cmp1 = fcmp ult float %x, 1.0 ; true
384 %r = select i1 %cmp1, float 1.0, float %min ; 1.0
388 define float @clamp_float_unordered_strict_maxmin2(float %x) {
390 ; CHECK-LABEL: @clamp_float_unordered_strict_maxmin2(
391 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp oge float [[X:%.*]], 2.550000e+02
392 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2_INV]], float 2.550000e+02, float [[X]]
393 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ult float [[X]], 1.000000e+00
394 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 1.000000e+00, float [[MIN]]
395 ; CHECK-NEXT: ret float [[R]]
397 %cmp2 = fcmp ult float %x, 255.0 ; x is NaN => true
398 %min = select i1 %cmp2, float %x, float 255.0 ; NaN
399 %cmp1 = fcmp ult float %x, 1.0 ; true
400 %r = select i1 %cmp1, float 1.0, float %min ; 1.0
404 ; (X <= C1) ? C1 : MIN(X, C2)
405 define float @clamp_float_unordered_nonstrict_maxmin1(float %x) {
407 ; CHECK-LABEL: @clamp_float_unordered_nonstrict_maxmin1(
408 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp olt float [[X:%.*]], 2.550000e+02
409 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2]], float [[X]], float 2.550000e+02
410 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ule float [[X]], 1.000000e+00
411 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 1.000000e+00, float [[MIN]]
412 ; CHECK-NEXT: ret float [[R]]
414 %cmp2 = fcmp olt float %x, 255.0 ; x is NaN => false
415 %min = select i1 %cmp2, float %x, float 255.0 ; 255.0
416 %cmp1 = fcmp ule float %x, 1.0 ; true
417 %r = select i1 %cmp1, float 1.0, float %min ; 1.0
421 define float @clamp_float_unordered_nonstrict_maxmin2(float %x) {
423 ; CHECK-LABEL: @clamp_float_unordered_nonstrict_maxmin2(
424 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp oge float [[X:%.*]], 2.550000e+02
425 ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2_INV]], float 2.550000e+02, float [[X]]
426 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ule float [[X]], 1.000000e+00
427 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 1.000000e+00, float [[MIN]]
428 ; CHECK-NEXT: ret float [[R]]
430 %cmp2 = fcmp ult float %x, 255.0 ; x is NaN => true
431 %min = select i1 %cmp2, float %x, float 255.0 ; NaN
432 %cmp1 = fcmp ule float %x, 1.0 ; true
433 %r = select i1 %cmp1, float 1.0, float %min ; 1.0
437 ; (X > C1) ? C1 : MAX(X, C2)
438 define float @clamp_float_unordered_strict_minmax1(float %x) {
440 ; CHECK-LABEL: @clamp_float_unordered_strict_minmax1(
441 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp ogt float [[X:%.*]], 1.000000e+00
442 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2]], float [[X]], float 1.000000e+00
443 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ugt float [[X]], 2.550000e+02
444 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 2.550000e+02, float [[MAX]]
445 ; CHECK-NEXT: ret float [[R]]
447 %cmp2 = fcmp ogt float %x, 1.0 ; x is NaN => false
448 %max = select i1 %cmp2, float %x, float 1.0 ; 1.0
449 %cmp1 = fcmp ugt float %x, 255.0 ; true
450 %r = select i1 %cmp1, float 255.0, float %max ; 255.0
454 define float @clamp_float_unordered_strict_minmax2(float %x) {
456 ; CHECK-LABEL: @clamp_float_unordered_strict_minmax2(
457 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp ole float [[X:%.*]], 1.000000e+00
458 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2_INV]], float 1.000000e+00, float [[X]]
459 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp ugt float [[X]], 2.550000e+02
460 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 2.550000e+02, float [[MAX]]
461 ; CHECK-NEXT: ret float [[R]]
463 %cmp2 = fcmp ugt float %x, 1.0 ; x is NaN => true
464 %max = select i1 %cmp2, float %x, float 1.0 ; NaN
465 %cmp1 = fcmp ugt float %x, 255.0 ; true
466 %r = select i1 %cmp1, float 255.0, float %max ; 255.0
470 ; (X >= C1) ? C1 : MAX(X, C2)
471 define float @clamp_float_unordered_nonstrict_minmax1(float %x) {
473 ; CHECK-LABEL: @clamp_float_unordered_nonstrict_minmax1(
474 ; CHECK-NEXT: [[CMP2:%.*]] = fcmp ogt float [[X:%.*]], 1.000000e+00
475 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2]], float [[X]], float 1.000000e+00
476 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp uge float [[X]], 2.550000e+02
477 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 2.550000e+02, float [[MAX]]
478 ; CHECK-NEXT: ret float [[R]]
480 %cmp2 = fcmp ogt float %x, 1.0 ; x is NaN => false
481 %max = select i1 %cmp2, float %x, float 1.0 ; 1.0
482 %cmp1 = fcmp uge float %x, 255.0 ; true
483 %r = select i1 %cmp1, float 255.0, float %max ; 255.0
487 define float @clamp_float_unordered_nonstrict_minmax2(float %x) {
489 ; CHECK-LABEL: @clamp_float_unordered_nonstrict_minmax2(
490 ; CHECK-NEXT: [[CMP2_INV:%.*]] = fcmp ole float [[X:%.*]], 1.000000e+00
491 ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2_INV]], float 1.000000e+00, float [[X]]
492 ; CHECK-NEXT: [[CMP1:%.*]] = fcmp uge float [[X]], 2.550000e+02
493 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP1]], float 2.550000e+02, float [[MAX]]
494 ; CHECK-NEXT: ret float [[R]]
496 %cmp2 = fcmp ugt float %x, 1.0 ; x is NaN => true
497 %max = select i1 %cmp2, float %x, float 1.0 ; NaN
498 %cmp1 = fcmp uge float %x, 255.0 ; true
499 %r = select i1 %cmp1, float 255.0, float %max ; 255.0
503 ;; Check casts behavior
504 define float @ui32_clamp_and_cast_to_float(i32 %x) {
505 ; CHECK-LABEL: @ui32_clamp_and_cast_to_float(
506 ; CHECK-NEXT: [[LO_CMP:%.*]] = icmp eq i32 [[X:%.*]], 0
507 ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[X]], 255
508 ; CHECK-NEXT: [[MIN1:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 255
509 ; CHECK-NEXT: [[TMP2:%.*]] = uitofp i32 [[MIN1]] to float
510 ; CHECK-NEXT: [[R:%.*]] = select i1 [[LO_CMP]], float 1.000000e+00, float [[TMP2]]
511 ; CHECK-NEXT: ret float [[R]]
513 %f_x = uitofp i32 %x to float
514 %up_cmp = icmp ugt i32 %x, 255
515 %lo_cmp = icmp ult i32 %x, 1
516 %min = select i1 %up_cmp, float 255.0, float %f_x
517 %r = select i1 %lo_cmp, float 1.0, float %min
521 define float @ui64_clamp_and_cast_to_float(i64 %x) {
522 ; CHECK-LABEL: @ui64_clamp_and_cast_to_float(
523 ; CHECK-NEXT: [[LO_CMP:%.*]] = icmp eq i64 [[X:%.*]], 0
524 ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i64 [[X]], 255
525 ; CHECK-NEXT: [[MIN1:%.*]] = select i1 [[TMP1]], i64 [[X]], i64 255
526 ; CHECK-NEXT: [[TMP2:%.*]] = uitofp i64 [[MIN1]] to float
527 ; CHECK-NEXT: [[R:%.*]] = select i1 [[LO_CMP]], float 1.000000e+00, float [[TMP2]]
528 ; CHECK-NEXT: ret float [[R]]
530 %f_x = uitofp i64 %x to float
531 %up_cmp = icmp ugt i64 %x, 255
532 %lo_cmp = icmp ult i64 %x, 1
533 %min = select i1 %up_cmp, float 255.0, float %f_x
534 %r = select i1 %lo_cmp, float 1.0, float %min
538 define float @mixed_clamp_to_float_1(i32 %x) {
539 ; CHECK-LABEL: @mixed_clamp_to_float_1(
540 ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[X:%.*]], 255
541 ; CHECK-NEXT: [[SI_MIN:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 255
542 ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i32 [[SI_MIN]], 1
543 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[TMP2]], i32 [[SI_MIN]], i32 1
544 ; CHECK-NEXT: [[TMP3:%.*]] = sitofp i32 [[R1]] to float
545 ; CHECK-NEXT: ret float [[TMP3]]
547 %si_min_cmp = icmp sgt i32 %x, 255
548 %si_min = select i1 %si_min_cmp, i32 255, i32 %x
549 %f_min = sitofp i32 %si_min to float
550 %f_x = sitofp i32 %x to float
551 %lo_cmp = fcmp ult float %f_x, 1.0
552 %r = select i1 %lo_cmp, float 1.0, float %f_min
556 define i32 @mixed_clamp_to_i32_1(float %x) {
557 ; CHECK-LABEL: @mixed_clamp_to_i32_1(
558 ; CHECK-NEXT: [[FLOAT_MIN_CMP:%.*]] = fcmp ogt float [[X:%.*]], 2.550000e+02
559 ; CHECK-NEXT: [[FLOAT_MIN:%.*]] = select i1 [[FLOAT_MIN_CMP]], float 2.550000e+02, float [[X]]
560 ; CHECK-NEXT: [[I32_MIN:%.*]] = fptosi float [[FLOAT_MIN]] to i32
561 ; CHECK-NEXT: [[I32_X:%.*]] = fptosi float [[X]] to i32
562 ; CHECK-NEXT: [[LO_CMP:%.*]] = icmp eq i32 [[I32_X]], 0
563 ; CHECK-NEXT: [[R:%.*]] = select i1 [[LO_CMP]], i32 1, i32 [[I32_MIN]]
564 ; CHECK-NEXT: ret i32 [[R]]
566 %float_min_cmp = fcmp ogt float %x, 255.0
567 %float_min = select i1 %float_min_cmp, float 255.0, float %x
568 %i32_min = fptosi float %float_min to i32
569 %i32_x = fptosi float %x to i32
570 %lo_cmp = icmp ult i32 %i32_x, 1
571 %r = select i1 %lo_cmp, i32 1, i32 %i32_min
575 define float @mixed_clamp_to_float_2(i32 %x) {
576 ; CHECK-LABEL: @mixed_clamp_to_float_2(
577 ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[X:%.*]], 255
578 ; CHECK-NEXT: [[SI_MIN:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 255
579 ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i32 [[SI_MIN]], 1
580 ; CHECK-NEXT: [[R1:%.*]] = select i1 [[TMP2]], i32 [[SI_MIN]], i32 1
581 ; CHECK-NEXT: [[TMP3:%.*]] = sitofp i32 [[R1]] to float
582 ; CHECK-NEXT: ret float [[TMP3]]
584 %si_min_cmp = icmp sgt i32 %x, 255
585 %si_min = select i1 %si_min_cmp, i32 255, i32 %x
586 %f_min = sitofp i32 %si_min to float
587 %lo_cmp = icmp slt i32 %x, 1
588 %r = select i1 %lo_cmp, float 1.0, float %f_min
592 define i32 @mixed_clamp_to_i32_2(float %x) {
593 ; CHECK-LABEL: @mixed_clamp_to_i32_2(
594 ; CHECK-NEXT: [[FLOAT_MIN_CMP:%.*]] = fcmp ogt float [[X:%.*]], 2.550000e+02
595 ; CHECK-NEXT: [[FLOAT_MIN:%.*]] = select i1 [[FLOAT_MIN_CMP]], float 2.550000e+02, float [[X]]
596 ; CHECK-NEXT: [[I32_MIN:%.*]] = fptosi float [[FLOAT_MIN]] to i32
597 ; CHECK-NEXT: [[LO_CMP:%.*]] = fcmp olt float [[X]], 1.000000e+00
598 ; CHECK-NEXT: [[R:%.*]] = select i1 [[LO_CMP]], i32 1, i32 [[I32_MIN]]
599 ; CHECK-NEXT: ret i32 [[R]]
601 %float_min_cmp = fcmp ogt float %x, 255.0
602 %float_min = select i1 %float_min_cmp, float 255.0, float %x
603 %i32_min = fptosi float %float_min to i32
604 %lo_cmp = fcmp olt float %x, 1.0
605 %r = select i1 %lo_cmp, i32 1, i32 %i32_min