Line data Source code
1 : // Copyright 2014 the V8 project authors. All rights reserved.
2 : // Use of this source code is governed by a BSD-style license that can be
3 : // found in the LICENSE file.
4 :
5 : #include "src/compiler/simplified-operator.h"
6 : #include "src/compiler/access-builder.h"
7 : #include "src/compiler/js-graph.h"
8 : #include "src/compiler/node-properties.h"
9 : #include "src/compiler/simplified-operator-reducer.h"
10 : #include "src/compiler/types.h"
11 : #include "src/conversions-inl.h"
12 : #include "test/unittests/compiler/graph-unittest.h"
13 : #include "test/unittests/compiler/node-test-utils.h"
14 : #include "testing/gmock-support.h"
15 :
16 : using testing::BitEq;
17 :
18 :
19 : namespace v8 {
20 : namespace internal {
21 : namespace compiler {
22 : namespace simplified_operator_reducer_unittest {
23 :
24 : class SimplifiedOperatorReducerTest : public GraphTest {
25 : public:
26 : explicit SimplifiedOperatorReducerTest(int num_parameters = 1)
27 68 : : GraphTest(num_parameters), simplified_(zone()) {}
28 34 : ~SimplifiedOperatorReducerTest() override = default;
29 :
30 : protected:
31 840 : Reduction Reduce(Node* node) {
32 1680 : JSHeapBroker broker(isolate(), zone());
33 840 : MachineOperatorBuilder machine(zone());
34 840 : JSOperatorBuilder javascript(zone());
35 : JSGraph jsgraph(isolate(), graph(), common(), &javascript, simplified(),
36 840 : &machine);
37 1680 : GraphReducer graph_reducer(zone(), graph());
38 1680 : SimplifiedOperatorReducer reducer(&graph_reducer, &jsgraph, &broker);
39 1680 : return reducer.Reduce(node);
40 : }
41 :
42 1680 : SimplifiedOperatorBuilder* simplified() { return &simplified_; }
43 :
44 : private:
45 : SimplifiedOperatorBuilder simplified_;
46 : };
47 :
48 :
49 : template <typename T>
50 : class SimplifiedOperatorReducerTestWithParam
51 : : public SimplifiedOperatorReducerTest,
52 : public ::testing::WithParamInterface<T> {
53 : public:
54 : explicit SimplifiedOperatorReducerTestWithParam(int num_parameters = 1)
55 : : SimplifiedOperatorReducerTest(num_parameters) {}
56 : ~SimplifiedOperatorReducerTestWithParam() override = default;
57 : };
58 :
59 :
60 : namespace {
61 :
62 : const double kFloat64Values[] = {
63 : -V8_INFINITY, -6.52696e+290, -1.05768e+290, -5.34203e+268, -1.01997e+268,
64 : -8.22758e+266, -1.58402e+261, -5.15246e+241, -5.92107e+226, -1.21477e+226,
65 : -1.67913e+188, -1.6257e+184, -2.60043e+170, -2.52941e+168, -3.06033e+116,
66 : -4.56201e+52, -3.56788e+50, -9.9066e+38, -3.07261e+31, -2.1271e+09,
67 : -1.91489e+09, -1.73053e+09, -9.30675e+08, -26030, -20453, -15790, -11699,
68 : -111, -97, -78, -63, -58, -1.53858e-06, -2.98914e-12, -1.14741e-39,
69 : -8.20347e-57, -1.48932e-59, -3.17692e-66, -8.93103e-81, -3.91337e-83,
70 : -6.0489e-92, -8.83291e-113, -4.28266e-117, -1.92058e-178, -2.0567e-192,
71 : -1.68167e-194, -1.51841e-214, -3.98738e-234, -7.31851e-242, -2.21875e-253,
72 : -1.11612e-293, -0.0, 0.0, 2.22507e-308, 1.06526e-307, 4.16643e-227,
73 : 6.76624e-223, 2.0432e-197, 3.16254e-184, 1.37315e-173, 2.88603e-172,
74 : 1.54155e-99, 4.42923e-81, 1.40539e-73, 5.4462e-73, 1.24064e-58, 3.11167e-58,
75 : 2.75826e-39, 0.143815, 58, 67, 601, 7941, 11644, 13697, 25680, 29882,
76 : 1.32165e+08, 1.62439e+08, 4.16837e+08, 9.59097e+08, 1.32491e+09, 1.8728e+09,
77 : 1.0672e+17, 2.69606e+46, 1.98285e+79, 1.0098e+82, 7.93064e+88, 3.67444e+121,
78 : 9.36506e+123, 7.27954e+162, 3.05316e+168, 1.16171e+175, 1.64771e+189,
79 : 1.1622e+202, 2.00748e+239, 2.51778e+244, 3.90282e+306, 1.79769e+308,
80 : V8_INFINITY};
81 :
82 :
83 : const int32_t kInt32Values[] = {
84 : -2147483647 - 1, -2104508227, -2103151830, -1435284490, -1378926425,
85 : -1318814539, -1289388009, -1287537572, -1279026536, -1241605942,
86 : -1226046939, -941837148, -779818051, -413830641, -245798087, -184657557,
87 : -127145950, -105483328, -32325, -26653, -23858, -23834, -22363, -19858,
88 : -19044, -18744, -15528, -5309, -3372, -2093, -104, -98, -97, -93, -84, -80,
89 : -78, -76, -72, -58, -57, -56, -55, -45, -40, -34, -32, -25, -24, -5, -2, 0,
90 : 3, 10, 24, 34, 42, 46, 47, 48, 52, 56, 64, 65, 71, 76, 79, 81, 82, 97, 102,
91 : 103, 104, 106, 107, 109, 116, 122, 3653, 4485, 12405, 16504, 26262, 28704,
92 : 29755, 30554, 16476817, 605431957, 832401070, 873617242, 914205764,
93 : 1062628108, 1087581664, 1488498068, 1534668023, 1661587028, 1696896187,
94 : 1866841746, 2032089723, 2147483647};
95 :
96 : const double kNaNs[] = {-std::numeric_limits<double>::quiet_NaN(),
97 : std::numeric_limits<double>::quiet_NaN(),
98 : bit_cast<double>(uint64_t{0x7FFFFFFFFFFFFFFF}),
99 3074 : bit_cast<double>(uint64_t{0xFFFFFFFFFFFFFFFF})};
100 :
101 : const CheckForMinusZeroMode kCheckForMinusZeroModes[] = {
102 : CheckForMinusZeroMode::kDontCheckForMinusZero,
103 : CheckForMinusZeroMode::kCheckForMinusZero};
104 :
105 : } // namespace
106 :
107 :
108 : // -----------------------------------------------------------------------------
109 : // BooleanNot
110 :
111 :
112 15375 : TEST_F(SimplifiedOperatorReducerTest, BooleanNotWithBooleanNot) {
113 1 : Node* param0 = Parameter(0);
114 : Reduction reduction = Reduce(
115 : graph()->NewNode(simplified()->BooleanNot(),
116 3 : graph()->NewNode(simplified()->BooleanNot(), param0)));
117 1 : ASSERT_TRUE(reduction.Changed());
118 2 : EXPECT_EQ(param0, reduction.replacement());
119 : }
120 :
121 :
122 15375 : TEST_F(SimplifiedOperatorReducerTest, BooleanNotWithFalseConstant) {
123 : Reduction reduction0 =
124 3 : Reduce(graph()->NewNode(simplified()->BooleanNot(), FalseConstant()));
125 1 : ASSERT_TRUE(reduction0.Changed());
126 4 : EXPECT_THAT(reduction0.replacement(), IsTrueConstant());
127 : }
128 :
129 :
130 15375 : TEST_F(SimplifiedOperatorReducerTest, BooleanNotWithTrueConstant) {
131 : Reduction reduction1 =
132 3 : Reduce(graph()->NewNode(simplified()->BooleanNot(), TrueConstant()));
133 1 : ASSERT_TRUE(reduction1.Changed());
134 4 : EXPECT_THAT(reduction1.replacement(), IsFalseConstant());
135 : }
136 :
137 :
138 : // -----------------------------------------------------------------------------
139 : // ChangeTaggedToBit
140 :
141 15375 : TEST_F(SimplifiedOperatorReducerTest, ChangeBitToTaggedWithChangeTaggedToBit) {
142 1 : Node* param0 = Parameter(0);
143 : Reduction reduction = Reduce(graph()->NewNode(
144 : simplified()->ChangeBitToTagged(),
145 3 : graph()->NewNode(simplified()->ChangeTaggedToBit(), param0)));
146 1 : ASSERT_TRUE(reduction.Changed());
147 2 : EXPECT_EQ(param0, reduction.replacement());
148 : }
149 :
150 15375 : TEST_F(SimplifiedOperatorReducerTest, ChangeBitToTaggedWithZeroConstant) {
151 : Reduction reduction = Reduce(
152 3 : graph()->NewNode(simplified()->ChangeBitToTagged(), Int32Constant(0)));
153 1 : ASSERT_TRUE(reduction.Changed());
154 4 : EXPECT_THAT(reduction.replacement(), IsFalseConstant());
155 : }
156 :
157 15375 : TEST_F(SimplifiedOperatorReducerTest, ChangeBitToTaggedWithOneConstant) {
158 : Reduction reduction = Reduce(
159 3 : graph()->NewNode(simplified()->ChangeBitToTagged(), Int32Constant(1)));
160 1 : ASSERT_TRUE(reduction.Changed());
161 4 : EXPECT_THAT(reduction.replacement(), IsTrueConstant());
162 : }
163 :
164 :
165 : // -----------------------------------------------------------------------------
166 : // ChangeTaggedToBit
167 :
168 15375 : TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToBitWithFalseConstant) {
169 : Reduction reduction = Reduce(
170 3 : graph()->NewNode(simplified()->ChangeTaggedToBit(), FalseConstant()));
171 1 : ASSERT_TRUE(reduction.Changed());
172 5 : EXPECT_THAT(reduction.replacement(), IsInt32Constant(0));
173 : }
174 :
175 15375 : TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToBitWithTrueConstant) {
176 : Reduction reduction = Reduce(
177 3 : graph()->NewNode(simplified()->ChangeTaggedToBit(), TrueConstant()));
178 1 : ASSERT_TRUE(reduction.Changed());
179 5 : EXPECT_THAT(reduction.replacement(), IsInt32Constant(1));
180 : }
181 :
182 15375 : TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToBitWithChangeBitToTagged) {
183 1 : Node* param0 = Parameter(0);
184 : Reduction reduction = Reduce(graph()->NewNode(
185 : simplified()->ChangeTaggedToBit(),
186 3 : graph()->NewNode(simplified()->ChangeBitToTagged(), param0)));
187 1 : ASSERT_TRUE(reduction.Changed());
188 2 : EXPECT_EQ(param0, reduction.replacement());
189 : }
190 :
191 : // -----------------------------------------------------------------------------
192 : // ChangeFloat64ToTagged
193 :
194 15375 : TEST_F(SimplifiedOperatorReducerTest, ChangeFloat64ToTaggedWithConstant) {
195 9 : TRACED_FOREACH(CheckForMinusZeroMode, mode, kCheckForMinusZeroModes) {
196 802 : TRACED_FOREACH(double, n, kFloat64Values) {
197 : Reduction reduction = Reduce(graph()->NewNode(
198 600 : simplified()->ChangeFloat64ToTagged(mode), Float64Constant(n)));
199 200 : ASSERT_TRUE(reduction.Changed());
200 1000 : EXPECT_THAT(reduction.replacement(), IsNumberConstant(BitEq(n)));
201 : }
202 : }
203 : }
204 :
205 : // -----------------------------------------------------------------------------
206 : // ChangeInt32ToTagged
207 :
208 :
209 15375 : TEST_F(SimplifiedOperatorReducerTest, ChangeInt32ToTaggedWithConstant) {
210 401 : TRACED_FOREACH(int32_t, n, kInt32Values) {
211 : Reduction reduction = Reduce(graph()->NewNode(
212 300 : simplified()->ChangeInt32ToTagged(), Int32Constant(n)));
213 100 : ASSERT_TRUE(reduction.Changed());
214 600 : EXPECT_THAT(reduction.replacement(), IsNumberConstant(BitEq(FastI2D(n))));
215 : }
216 : }
217 :
218 :
219 : // -----------------------------------------------------------------------------
220 : // ChangeTaggedToFloat64
221 :
222 :
223 15375 : TEST_F(SimplifiedOperatorReducerTest,
224 : ChangeTaggedToFloat64WithChangeFloat64ToTagged) {
225 1 : Node* param0 = Parameter(0);
226 9 : TRACED_FOREACH(CheckForMinusZeroMode, mode, kCheckForMinusZeroModes) {
227 : Reduction reduction = Reduce(graph()->NewNode(
228 : simplified()->ChangeTaggedToFloat64(),
229 8 : graph()->NewNode(simplified()->ChangeFloat64ToTagged(mode), param0)));
230 2 : ASSERT_TRUE(reduction.Changed());
231 4 : EXPECT_EQ(param0, reduction.replacement());
232 : }
233 : }
234 :
235 15375 : TEST_F(SimplifiedOperatorReducerTest,
236 : ChangeTaggedToFloat64WithChangeInt32ToTagged) {
237 1 : Node* param0 = Parameter(0);
238 : Reduction reduction = Reduce(graph()->NewNode(
239 : simplified()->ChangeTaggedToFloat64(),
240 3 : graph()->NewNode(simplified()->ChangeInt32ToTagged(), param0)));
241 1 : ASSERT_TRUE(reduction.Changed());
242 5 : EXPECT_THAT(reduction.replacement(), IsChangeInt32ToFloat64(param0));
243 : }
244 :
245 :
246 15375 : TEST_F(SimplifiedOperatorReducerTest,
247 : ChangeTaggedToFloat64WithChangeUint32ToTagged) {
248 1 : Node* param0 = Parameter(0);
249 : Reduction reduction = Reduce(graph()->NewNode(
250 : simplified()->ChangeTaggedToFloat64(),
251 3 : graph()->NewNode(simplified()->ChangeUint32ToTagged(), param0)));
252 1 : ASSERT_TRUE(reduction.Changed());
253 5 : EXPECT_THAT(reduction.replacement(), IsChangeUint32ToFloat64(param0));
254 : }
255 :
256 :
257 15375 : TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToFloat64WithConstant) {
258 401 : TRACED_FOREACH(double, n, kFloat64Values) {
259 : Reduction reduction = Reduce(graph()->NewNode(
260 300 : simplified()->ChangeTaggedToFloat64(), NumberConstant(n)));
261 100 : ASSERT_TRUE(reduction.Changed());
262 500 : EXPECT_THAT(reduction.replacement(), IsFloat64Constant(BitEq(n)));
263 : }
264 : }
265 :
266 :
267 15375 : TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToFloat64WithNaNConstant) {
268 17 : TRACED_FOREACH(double, nan, kNaNs) {
269 : Reduction reduction = Reduce(graph()->NewNode(
270 12 : simplified()->ChangeTaggedToFloat64(), NumberConstant(nan)));
271 4 : ASSERT_TRUE(reduction.Changed());
272 20 : EXPECT_THAT(reduction.replacement(), IsFloat64Constant(BitEq(nan)));
273 : }
274 : }
275 :
276 :
277 : // -----------------------------------------------------------------------------
278 : // ChangeTaggedToInt32
279 :
280 15375 : TEST_F(SimplifiedOperatorReducerTest,
281 : ChangeTaggedToInt32WithChangeFloat64ToTagged) {
282 1 : Node* param0 = Parameter(0);
283 9 : TRACED_FOREACH(CheckForMinusZeroMode, mode, kCheckForMinusZeroModes) {
284 : Reduction reduction = Reduce(graph()->NewNode(
285 : simplified()->ChangeTaggedToInt32(),
286 6 : graph()->NewNode(simplified()->ChangeFloat64ToTagged(mode), param0)));
287 2 : ASSERT_TRUE(reduction.Changed());
288 10 : EXPECT_THAT(reduction.replacement(), IsChangeFloat64ToInt32(param0));
289 : }
290 : }
291 :
292 15375 : TEST_F(SimplifiedOperatorReducerTest,
293 : ChangeTaggedToInt32WithChangeInt32ToTagged) {
294 1 : Node* param0 = Parameter(0);
295 : Reduction reduction = Reduce(graph()->NewNode(
296 : simplified()->ChangeTaggedToInt32(),
297 3 : graph()->NewNode(simplified()->ChangeInt32ToTagged(), param0)));
298 1 : ASSERT_TRUE(reduction.Changed());
299 2 : EXPECT_EQ(param0, reduction.replacement());
300 : }
301 :
302 :
303 : // -----------------------------------------------------------------------------
304 : // ChangeTaggedToUint32
305 :
306 15375 : TEST_F(SimplifiedOperatorReducerTest,
307 : ChangeTaggedToUint32WithChangeFloat64ToTagged) {
308 1 : Node* param0 = Parameter(0);
309 9 : TRACED_FOREACH(CheckForMinusZeroMode, mode, kCheckForMinusZeroModes) {
310 : Reduction reduction = Reduce(graph()->NewNode(
311 : simplified()->ChangeTaggedToUint32(),
312 6 : graph()->NewNode(simplified()->ChangeFloat64ToTagged(mode), param0)));
313 2 : ASSERT_TRUE(reduction.Changed());
314 10 : EXPECT_THAT(reduction.replacement(), IsChangeFloat64ToUint32(param0));
315 : }
316 : }
317 :
318 15375 : TEST_F(SimplifiedOperatorReducerTest,
319 : ChangeTaggedToUint32WithChangeUint32ToTagged) {
320 1 : Node* param0 = Parameter(0);
321 : Reduction reduction = Reduce(graph()->NewNode(
322 : simplified()->ChangeTaggedToUint32(),
323 3 : graph()->NewNode(simplified()->ChangeUint32ToTagged(), param0)));
324 1 : ASSERT_TRUE(reduction.Changed());
325 2 : EXPECT_EQ(param0, reduction.replacement());
326 : }
327 :
328 :
329 : // -----------------------------------------------------------------------------
330 : // TruncateTaggedToWord32
331 :
332 15375 : TEST_F(SimplifiedOperatorReducerTest,
333 : TruncateTaggedToWord3WithChangeFloat64ToTagged) {
334 1 : Node* param0 = Parameter(0);
335 9 : TRACED_FOREACH(CheckForMinusZeroMode, mode, kCheckForMinusZeroModes) {
336 : Reduction reduction = Reduce(graph()->NewNode(
337 : simplified()->TruncateTaggedToWord32(),
338 6 : graph()->NewNode(simplified()->ChangeFloat64ToTagged(mode), param0)));
339 2 : ASSERT_TRUE(reduction.Changed());
340 10 : EXPECT_THAT(reduction.replacement(), IsTruncateFloat64ToWord32(param0));
341 : }
342 : }
343 :
344 15375 : TEST_F(SimplifiedOperatorReducerTest, TruncateTaggedToWord32WithConstant) {
345 401 : TRACED_FOREACH(double, n, kFloat64Values) {
346 : Reduction reduction = Reduce(graph()->NewNode(
347 300 : simplified()->TruncateTaggedToWord32(), NumberConstant(n)));
348 100 : ASSERT_TRUE(reduction.Changed());
349 500 : EXPECT_THAT(reduction.replacement(), IsInt32Constant(DoubleToInt32(n)));
350 : }
351 : }
352 :
353 : // -----------------------------------------------------------------------------
354 : // CheckedFloat64ToInt32
355 :
356 15375 : TEST_F(SimplifiedOperatorReducerTest, CheckedFloat64ToInt32WithConstant) {
357 : Node* effect = graph()->start();
358 : Node* control = graph()->start();
359 401 : TRACED_FOREACH(int32_t, n, kInt32Values) {
360 : Reduction r = Reduce(graph()->NewNode(
361 : simplified()->CheckedFloat64ToInt32(
362 : CheckForMinusZeroMode::kDontCheckForMinusZero, VectorSlotPair()),
363 300 : Float64Constant(n), effect, control));
364 100 : ASSERT_TRUE(r.Changed());
365 500 : EXPECT_THAT(r.replacement(), IsInt32Constant(n));
366 : }
367 : }
368 :
369 : // -----------------------------------------------------------------------------
370 : // CheckHeapObject
371 :
372 15375 : TEST_F(SimplifiedOperatorReducerTest, CheckHeapObjectWithChangeBitToTagged) {
373 1 : Node* param0 = Parameter(0);
374 : Node* effect = graph()->start();
375 : Node* control = graph()->start();
376 2 : Node* value = graph()->NewNode(simplified()->ChangeBitToTagged(), param0);
377 : Reduction reduction = Reduce(graph()->NewNode(simplified()->CheckHeapObject(),
378 2 : value, effect, control));
379 1 : ASSERT_TRUE(reduction.Changed());
380 2 : EXPECT_EQ(value, reduction.replacement());
381 : }
382 :
383 15375 : TEST_F(SimplifiedOperatorReducerTest, CheckHeapObjectWithHeapConstant) {
384 : Node* effect = graph()->start();
385 : Node* control = graph()->start();
386 : Handle<HeapObject> kHeapObjects[] = {
387 : factory()->empty_string(), factory()->null_value(),
388 : factory()->species_symbol(), factory()->undefined_value()};
389 17 : TRACED_FOREACH(Handle<HeapObject>, object, kHeapObjects) {
390 4 : Node* value = HeapConstant(object);
391 : Reduction reduction = Reduce(graph()->NewNode(
392 8 : simplified()->CheckHeapObject(), value, effect, control));
393 4 : ASSERT_TRUE(reduction.Changed());
394 8 : EXPECT_EQ(value, reduction.replacement());
395 : }
396 : }
397 :
398 15375 : TEST_F(SimplifiedOperatorReducerTest, CheckHeapObjectWithCheckHeapObject) {
399 1 : Node* param0 = Parameter(0);
400 : Node* effect = graph()->start();
401 : Node* control = graph()->start();
402 1 : Node* value = effect = graph()->NewNode(simplified()->CheckHeapObject(),
403 1 : param0, effect, control);
404 : Reduction reduction = Reduce(graph()->NewNode(simplified()->CheckHeapObject(),
405 2 : value, effect, control));
406 1 : ASSERT_TRUE(reduction.Changed());
407 2 : EXPECT_EQ(value, reduction.replacement());
408 : }
409 :
410 : // -----------------------------------------------------------------------------
411 : // CheckSmi
412 :
413 15375 : TEST_F(SimplifiedOperatorReducerTest, CheckSmiWithChangeInt31ToTaggedSigned) {
414 1 : Node* param0 = Parameter(0);
415 : Node* effect = graph()->start();
416 : Node* control = graph()->start();
417 : Node* value =
418 2 : graph()->NewNode(simplified()->ChangeInt31ToTaggedSigned(), param0);
419 : Reduction reduction = Reduce(graph()->NewNode(
420 2 : simplified()->CheckSmi(VectorSlotPair()), value, effect, control));
421 1 : ASSERT_TRUE(reduction.Changed());
422 2 : EXPECT_EQ(value, reduction.replacement());
423 : }
424 :
425 15375 : TEST_F(SimplifiedOperatorReducerTest, CheckSmiWithNumberConstant) {
426 : Node* effect = graph()->start();
427 : Node* control = graph()->start();
428 1 : Node* value = NumberConstant(1.0);
429 : Reduction reduction = Reduce(graph()->NewNode(
430 3 : simplified()->CheckSmi(VectorSlotPair()), value, effect, control));
431 1 : ASSERT_TRUE(reduction.Changed());
432 2 : EXPECT_EQ(value, reduction.replacement());
433 : }
434 :
435 15375 : TEST_F(SimplifiedOperatorReducerTest, CheckSmiWithCheckSmi) {
436 1 : Node* param0 = Parameter(0);
437 : Node* effect = graph()->start();
438 : Node* control = graph()->start();
439 3 : Node* value = effect = graph()->NewNode(
440 1 : simplified()->CheckSmi(VectorSlotPair()), param0, effect, control);
441 : Reduction reduction = Reduce(graph()->NewNode(
442 2 : simplified()->CheckSmi(VectorSlotPair()), value, effect, control));
443 1 : ASSERT_TRUE(reduction.Changed());
444 2 : EXPECT_EQ(value, reduction.replacement());
445 : }
446 :
447 : // -----------------------------------------------------------------------------
448 : // NumberAbs
449 :
450 15375 : TEST_F(SimplifiedOperatorReducerTest, NumberAbsWithNumberConstant) {
451 401 : TRACED_FOREACH(double, n, kFloat64Values) {
452 : Reduction reduction =
453 300 : Reduce(graph()->NewNode(simplified()->NumberAbs(), NumberConstant(n)));
454 100 : ASSERT_TRUE(reduction.Changed());
455 500 : EXPECT_THAT(reduction.replacement(), IsNumberConstant(std::fabs(n)));
456 : }
457 : }
458 :
459 : // -----------------------------------------------------------------------------
460 : // ObjectIsSmi
461 :
462 15375 : TEST_F(SimplifiedOperatorReducerTest, ObjectIsSmiWithChangeBitToTagged) {
463 1 : Node* param0 = Parameter(0);
464 : Reduction reduction = Reduce(graph()->NewNode(
465 : simplified()->ObjectIsSmi(),
466 3 : graph()->NewNode(simplified()->ChangeBitToTagged(), param0)));
467 1 : ASSERT_TRUE(reduction.Changed());
468 4 : EXPECT_THAT(reduction.replacement(), IsFalseConstant());
469 : }
470 :
471 15375 : TEST_F(SimplifiedOperatorReducerTest,
472 : ObjectIsSmiWithChangeInt31ToTaggedSigned) {
473 1 : Node* param0 = Parameter(0);
474 : Reduction reduction = Reduce(graph()->NewNode(
475 : simplified()->ObjectIsSmi(),
476 3 : graph()->NewNode(simplified()->ChangeInt31ToTaggedSigned(), param0)));
477 1 : ASSERT_TRUE(reduction.Changed());
478 4 : EXPECT_THAT(reduction.replacement(), IsTrueConstant());
479 : }
480 :
481 12301 : TEST_F(SimplifiedOperatorReducerTest, ObjectIsSmiWithHeapConstant) {
482 : Handle<HeapObject> kHeapObjects[] = {
483 : factory()->empty_string(), factory()->null_value(),
484 : factory()->species_symbol(), factory()->undefined_value()};
485 17 : TRACED_FOREACH(Handle<HeapObject>, o, kHeapObjects) {
486 : Reduction reduction =
487 12 : Reduce(graph()->NewNode(simplified()->ObjectIsSmi(), HeapConstant(o)));
488 4 : ASSERT_TRUE(reduction.Changed());
489 16 : EXPECT_THAT(reduction.replacement(), IsFalseConstant());
490 : }
491 : }
492 :
493 15375 : TEST_F(SimplifiedOperatorReducerTest, ObjectIsSmiWithNumberConstant) {
494 401 : TRACED_FOREACH(double, n, kFloat64Values) {
495 : Reduction reduction = Reduce(
496 300 : graph()->NewNode(simplified()->ObjectIsSmi(), NumberConstant(n)));
497 100 : ASSERT_TRUE(reduction.Changed());
498 500 : EXPECT_THAT(reduction.replacement(), IsBooleanConstant(IsSmiDouble(n)));
499 : }
500 : }
501 :
502 : } // namespace simplified_operator_reducer_unittest
503 : } // namespace compiler
504 : } // namespace internal
505 9222 : } // namespace v8
|
