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1 // Copyright 2014 the V8 project authors. All rights reserved. | 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 | 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_PPC | 7 #if V8_TARGET_ARCH_PPC |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/bootstrapper.h" | 10 #include "src/bootstrapper.h" |
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253 Label not_identical; | 253 Label not_identical; |
254 Label heap_number, return_equal; | 254 Label heap_number, return_equal; |
255 __ cmp(r3, r4); | 255 __ cmp(r3, r4); |
256 __ bne(¬_identical); | 256 __ bne(¬_identical); |
257 | 257 |
258 // Test for NaN. Sadly, we can't just compare to Factory::nan_value(), | 258 // Test for NaN. Sadly, we can't just compare to Factory::nan_value(), |
259 // so we do the second best thing - test it ourselves. | 259 // so we do the second best thing - test it ourselves. |
260 // They are both equal and they are not both Smis so both of them are not | 260 // They are both equal and they are not both Smis so both of them are not |
261 // Smis. If it's not a heap number, then return equal. | 261 // Smis. If it's not a heap number, then return equal. |
262 if (cond == lt || cond == gt) { | 262 if (cond == lt || cond == gt) { |
| 263 Label not_simd; |
263 // Call runtime on identical JSObjects. | 264 // Call runtime on identical JSObjects. |
264 __ CompareObjectType(r3, r7, r7, FIRST_SPEC_OBJECT_TYPE); | 265 __ CompareObjectType(r3, r7, r7, FIRST_SPEC_OBJECT_TYPE); |
265 __ bge(slow); | 266 __ bge(slow); |
266 // Call runtime on identical symbols since we need to throw a TypeError. | 267 // Call runtime on identical symbols since we need to throw a TypeError. |
267 __ cmpi(r7, Operand(SYMBOL_TYPE)); | 268 __ cmpi(r7, Operand(SYMBOL_TYPE)); |
268 __ beq(slow); | 269 __ beq(slow); |
269 // Call runtime on identical SIMD values since we must throw a TypeError. | 270 // Call runtime on identical SIMD values since we must throw a TypeError. |
270 __ cmpi(r7, Operand(FLOAT32X4_TYPE)); | 271 __ cmpi(r7, Operand(FIRST_SIMD_VALUE_TYPE)); |
271 __ beq(slow); | 272 __ blt(¬_simd); |
| 273 __ cmpi(r7, Operand(LAST_SIMD_VALUE_TYPE)); |
| 274 __ ble(slow); |
| 275 __ bind(¬_simd); |
272 if (is_strong(strength)) { | 276 if (is_strong(strength)) { |
273 // Call the runtime on anything that is converted in the semantics, since | 277 // Call the runtime on anything that is converted in the semantics, since |
274 // we need to throw a TypeError. Smis have already been ruled out. | 278 // we need to throw a TypeError. Smis have already been ruled out. |
275 __ cmpi(r7, Operand(HEAP_NUMBER_TYPE)); | 279 __ cmpi(r7, Operand(HEAP_NUMBER_TYPE)); |
276 __ beq(&return_equal); | 280 __ beq(&return_equal); |
277 __ andi(r0, r7, Operand(kIsNotStringMask)); | 281 __ andi(r0, r7, Operand(kIsNotStringMask)); |
278 __ bne(slow, cr0); | 282 __ bne(slow, cr0); |
279 } | 283 } |
280 } else { | 284 } else { |
281 __ CompareObjectType(r3, r7, r7, HEAP_NUMBER_TYPE); | 285 __ CompareObjectType(r3, r7, r7, HEAP_NUMBER_TYPE); |
282 __ beq(&heap_number); | 286 __ beq(&heap_number); |
283 // Comparing JS objects with <=, >= is complicated. | 287 // Comparing JS objects with <=, >= is complicated. |
284 if (cond != eq) { | 288 if (cond != eq) { |
| 289 Label not_simd; |
285 __ cmpi(r7, Operand(FIRST_SPEC_OBJECT_TYPE)); | 290 __ cmpi(r7, Operand(FIRST_SPEC_OBJECT_TYPE)); |
286 __ bge(slow); | 291 __ bge(slow); |
287 // Call runtime on identical symbols since we need to throw a TypeError. | 292 // Call runtime on identical symbols since we need to throw a TypeError. |
288 __ cmpi(r7, Operand(SYMBOL_TYPE)); | 293 __ cmpi(r7, Operand(SYMBOL_TYPE)); |
289 __ beq(slow); | 294 __ beq(slow); |
290 // 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. |
291 __ cmpi(r7, Operand(FLOAT32X4_TYPE)); | 296 __ cmpi(r7, Operand(FIRST_SIMD_VALUE_TYPE)); |
292 __ beq(slow); | 297 __ blt(¬_simd); |
| 298 __ cmpi(r7, Operand(LAST_SIMD_VALUE_TYPE)); |
| 299 __ ble(slow); |
| 300 __ bind(¬_simd); |
293 if (is_strong(strength)) { | 301 if (is_strong(strength)) { |
294 // Call the runtime on anything that is converted in the semantics, | 302 // Call the runtime on anything that is converted in the semantics, |
295 // since we need to throw a TypeError. Smis and heap numbers have | 303 // since we need to throw a TypeError. Smis and heap numbers have |
296 // already been ruled out. | 304 // already been ruled out. |
297 __ andi(r0, r7, Operand(kIsNotStringMask)); | 305 __ andi(r0, r7, Operand(kIsNotStringMask)); |
298 __ bne(slow, cr0); | 306 __ bne(slow, cr0); |
299 } | 307 } |
300 // Normally here we fall through to return_equal, but undefined is | 308 // Normally here we fall through to return_equal, but undefined is |
301 // special: (undefined == undefined) == true, but | 309 // special: (undefined == undefined) == true, but |
302 // (undefined <= undefined) == false! See ECMAScript 11.8.5. | 310 // (undefined <= undefined) == false! See ECMAScript 11.8.5. |
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5828 kStackUnwindSpace, NULL, | 5836 kStackUnwindSpace, NULL, |
5829 MemOperand(fp, 6 * kPointerSize), NULL); | 5837 MemOperand(fp, 6 * kPointerSize), NULL); |
5830 } | 5838 } |
5831 | 5839 |
5832 | 5840 |
5833 #undef __ | 5841 #undef __ |
5834 } // namespace internal | 5842 } // namespace internal |
5835 } // namespace v8 | 5843 } // namespace v8 |
5836 | 5844 |
5837 #endif // V8_TARGET_ARCH_PPC | 5845 #endif // V8_TARGET_ARCH_PPC |
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