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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_MIPS64 | 7 #if V8_TARGET_ARCH_MIPS64 |
8 | 8 |
9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/code-stubs.h" | 10 #include "src/code-stubs.h" |
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280 __ Branch(¬_identical, ne, a0, Operand(a1)); | 280 __ Branch(¬_identical, ne, a0, Operand(a1)); |
281 | 281 |
282 __ li(exp_mask_reg, Operand(HeapNumber::kExponentMask)); | 282 __ li(exp_mask_reg, Operand(HeapNumber::kExponentMask)); |
283 | 283 |
284 // Test for NaN. Sadly, we can't just compare to Factory::nan_value(), | 284 // Test for NaN. Sadly, we can't just compare to Factory::nan_value(), |
285 // so we do the second best thing - test it ourselves. | 285 // so we do the second best thing - test it ourselves. |
286 // They are both equal and they are not both Smis so both of them are not | 286 // They are both equal and they are not both Smis so both of them are not |
287 // Smis. If it's not a heap number, then return equal. | 287 // Smis. If it's not a heap number, then return equal. |
288 __ GetObjectType(a0, t0, t0); | 288 __ GetObjectType(a0, t0, t0); |
289 if (cc == less || cc == greater) { | 289 if (cc == less || cc == greater) { |
| 290 Label not_simd; |
290 // Call runtime on identical JSObjects. | 291 // Call runtime on identical JSObjects. |
291 __ Branch(slow, greater, t0, Operand(FIRST_SPEC_OBJECT_TYPE)); | 292 __ Branch(slow, greater, t0, Operand(FIRST_SPEC_OBJECT_TYPE)); |
292 // Call runtime on identical symbols since we need to throw a TypeError. | 293 // Call runtime on identical symbols since we need to throw a TypeError. |
293 __ Branch(slow, eq, t0, Operand(SYMBOL_TYPE)); | 294 __ Branch(slow, eq, t0, Operand(SYMBOL_TYPE)); |
294 // Call runtime on identical SIMD values since we must throw a TypeError. | 295 // Call runtime on identical SIMD values since we must throw a TypeError. |
295 __ Branch(slow, eq, t0, Operand(FLOAT32X4_TYPE)); | 296 __ Branch(¬_simd, lt, t0, Operand(FIRST_SIMD_VALUE_TYPE)); |
| 297 __ Branch(slow, le, t0, Operand(LAST_SIMD_VALUE_TYPE)); |
| 298 __ bind(¬_simd); |
296 if (is_strong(strength)) { | 299 if (is_strong(strength)) { |
297 // Call the runtime on anything that is converted in the semantics, since | 300 // Call the runtime on anything that is converted in the semantics, since |
298 // we need to throw a TypeError. Smis have already been ruled out. | 301 // we need to throw a TypeError. Smis have already been ruled out. |
299 __ Branch(&return_equal, eq, t0, Operand(HEAP_NUMBER_TYPE)); | 302 __ Branch(&return_equal, eq, t0, Operand(HEAP_NUMBER_TYPE)); |
300 __ And(t0, t0, Operand(kIsNotStringMask)); | 303 __ And(t0, t0, Operand(kIsNotStringMask)); |
301 __ Branch(slow, ne, t0, Operand(zero_reg)); | 304 __ Branch(slow, ne, t0, Operand(zero_reg)); |
302 } | 305 } |
303 } else { | 306 } else { |
304 __ Branch(&heap_number, eq, t0, Operand(HEAP_NUMBER_TYPE)); | 307 __ Branch(&heap_number, eq, t0, Operand(HEAP_NUMBER_TYPE)); |
305 // Comparing JS objects with <=, >= is complicated. | 308 // Comparing JS objects with <=, >= is complicated. |
306 if (cc != eq) { | 309 if (cc != eq) { |
307 __ Branch(slow, greater, t0, Operand(FIRST_SPEC_OBJECT_TYPE)); | 310 Label not_simd; |
308 // Call runtime on identical symbols since we need to throw a TypeError. | 311 __ Branch(slow, greater, t0, Operand(FIRST_SPEC_OBJECT_TYPE)); |
309 __ Branch(slow, eq, t0, Operand(SYMBOL_TYPE)); | 312 // Call runtime on identical symbols since we need to throw a TypeError. |
310 // Call runtime on identical SIMD values since we must throw a TypeError. | 313 __ Branch(slow, eq, t0, Operand(SYMBOL_TYPE)); |
311 __ Branch(slow, eq, t0, Operand(FLOAT32X4_TYPE)); | 314 // Call runtime on identical SIMD values since we must throw a TypeError. |
312 if (is_strong(strength)) { | 315 __ Branch(¬_simd, lt, t0, Operand(FIRST_SIMD_VALUE_TYPE)); |
313 // Call the runtime on anything that is converted in the semantics, | 316 __ Branch(slow, le, t0, Operand(LAST_SIMD_VALUE_TYPE)); |
314 // since we need to throw a TypeError. Smis and heap numbers have | 317 __ bind(¬_simd); |
315 // already been ruled out. | 318 if (is_strong(strength)) { |
316 __ And(t0, t0, Operand(kIsNotStringMask)); | 319 // Call the runtime on anything that is converted in the semantics, |
317 __ Branch(slow, ne, t0, Operand(zero_reg)); | 320 // since we need to throw a TypeError. Smis and heap numbers have |
318 } | 321 // already been ruled out. |
| 322 __ And(t0, t0, Operand(kIsNotStringMask)); |
| 323 __ Branch(slow, ne, t0, Operand(zero_reg)); |
| 324 } |
319 // Normally here we fall through to return_equal, but undefined is | 325 // Normally here we fall through to return_equal, but undefined is |
320 // special: (undefined == undefined) == true, but | 326 // special: (undefined == undefined) == true, but |
321 // (undefined <= undefined) == false! See ECMAScript 11.8.5. | 327 // (undefined <= undefined) == false! See ECMAScript 11.8.5. |
322 if (cc == less_equal || cc == greater_equal) { | 328 if (cc == less_equal || cc == greater_equal) { |
323 __ Branch(&return_equal, ne, t0, Operand(ODDBALL_TYPE)); | 329 __ Branch(&return_equal, ne, t0, Operand(ODDBALL_TYPE)); |
324 __ LoadRoot(a6, Heap::kUndefinedValueRootIndex); | 330 __ LoadRoot(a6, Heap::kUndefinedValueRootIndex); |
325 __ Branch(&return_equal, ne, a0, Operand(a6)); | 331 __ Branch(&return_equal, ne, a0, Operand(a6)); |
326 DCHECK(is_int16(GREATER) && is_int16(LESS)); | 332 DCHECK(is_int16(GREATER) && is_int16(LESS)); |
327 __ Ret(USE_DELAY_SLOT); | 333 __ Ret(USE_DELAY_SLOT); |
328 if (cc == le) { | 334 if (cc == le) { |
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5752 MemOperand(fp, 6 * kPointerSize), NULL); | 5758 MemOperand(fp, 6 * kPointerSize), NULL); |
5753 } | 5759 } |
5754 | 5760 |
5755 | 5761 |
5756 #undef __ | 5762 #undef __ |
5757 | 5763 |
5758 } // namespace internal | 5764 } // namespace internal |
5759 } // namespace v8 | 5765 } // namespace v8 |
5760 | 5766 |
5761 #endif // V8_TARGET_ARCH_MIPS64 | 5767 #endif // V8_TARGET_ARCH_MIPS64 |
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