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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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_ARM64 | 7 #if V8_TARGET_ARCH_ARM64 |
| 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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| 220 // They are both equal and they are not both Smis so both of them are not | 220 // They are both equal and they are not both Smis so both of them are not |
| 221 // Smis. If it's not a heap number, then return equal. | 221 // Smis. If it's not a heap number, then return equal. |
| 222 Register right_type = scratch; | 222 Register right_type = scratch; |
| 223 if ((cond == lt) || (cond == gt)) { | 223 if ((cond == lt) || (cond == gt)) { |
| 224 // Call runtime on identical JSObjects. Otherwise return equal. | 224 // Call runtime on identical JSObjects. Otherwise return equal. |
| 225 __ JumpIfObjectType(right, right_type, right_type, FIRST_SPEC_OBJECT_TYPE, | 225 __ JumpIfObjectType(right, right_type, right_type, FIRST_SPEC_OBJECT_TYPE, |
| 226 slow, ge); | 226 slow, ge); |
| 227 // Call runtime on identical symbols since we need to throw a TypeError. | 227 // Call runtime on identical symbols since we need to throw a TypeError. |
| 228 __ Cmp(right_type, SYMBOL_TYPE); | 228 __ Cmp(right_type, SYMBOL_TYPE); |
| 229 __ B(eq, slow); | 229 __ B(eq, slow); |
| 230 // Call runtime on identical SIMD values since we must throw a TypeError. | |
| 231 __ Cmp(right_type, FLOAT32X4_TYPE); | |
| 232 __ B(eq, slow); | |
| 233 if (is_strong(strength)) { | 230 if (is_strong(strength)) { |
| 234 // Call the runtime on anything that is converted in the semantics, since | 231 // Call the runtime on anything that is converted in the semantics, since |
| 235 // we need to throw a TypeError. Smis have already been ruled out. | 232 // we need to throw a TypeError. Smis have already been ruled out. |
| 236 __ Cmp(right_type, Operand(HEAP_NUMBER_TYPE)); | 233 __ Cmp(right_type, Operand(HEAP_NUMBER_TYPE)); |
| 237 __ B(eq, &return_equal); | 234 __ B(eq, &return_equal); |
| 238 __ Tst(right_type, Operand(kIsNotStringMask)); | 235 __ Tst(right_type, Operand(kIsNotStringMask)); |
| 239 __ B(ne, slow); | 236 __ B(ne, slow); |
| 240 } | 237 } |
| 241 } else if (cond == eq) { | 238 } else if (cond == eq) { |
| 242 __ JumpIfHeapNumber(right, &heap_number); | 239 __ JumpIfHeapNumber(right, &heap_number); |
| 243 } else { | 240 } else { |
| 244 __ JumpIfObjectType(right, right_type, right_type, HEAP_NUMBER_TYPE, | 241 __ JumpIfObjectType(right, right_type, right_type, HEAP_NUMBER_TYPE, |
| 245 &heap_number); | 242 &heap_number); |
| 246 // Comparing JS objects with <=, >= is complicated. | 243 // Comparing JS objects with <=, >= is complicated. |
| 247 __ Cmp(right_type, FIRST_SPEC_OBJECT_TYPE); | 244 __ Cmp(right_type, FIRST_SPEC_OBJECT_TYPE); |
| 248 __ B(ge, slow); | 245 __ B(ge, slow); |
| 249 // Call runtime on identical symbols since we need to throw a TypeError. | 246 // Call runtime on identical symbols since we need to throw a TypeError. |
| 250 __ Cmp(right_type, SYMBOL_TYPE); | 247 __ Cmp(right_type, SYMBOL_TYPE); |
| 251 __ B(eq, slow); | 248 __ B(eq, slow); |
| 252 // Call runtime on identical SIMD values since we must throw a TypeError. | |
| 253 __ Cmp(right_type, FLOAT32X4_TYPE); | |
| 254 __ B(eq, slow); | |
| 255 if (is_strong(strength)) { | 249 if (is_strong(strength)) { |
| 256 // Call the runtime on anything that is converted in the semantics, | 250 // Call the runtime on anything that is converted in the semantics, |
| 257 // since we need to throw a TypeError. Smis and heap numbers have | 251 // since we need to throw a TypeError. Smis and heap numbers have |
| 258 // already been ruled out. | 252 // already been ruled out. |
| 259 __ Tst(right_type, Operand(kIsNotStringMask)); | 253 __ Tst(right_type, Operand(kIsNotStringMask)); |
| 260 __ B(ne, slow); | 254 __ B(ne, slow); |
| 261 } | 255 } |
| 262 // Normally here we fall through to return_equal, but undefined is | 256 // Normally here we fall through to return_equal, but undefined is |
| 263 // special: (undefined == undefined) == true, but | 257 // special: (undefined == undefined) == true, but |
| 264 // (undefined <= undefined) == false! See ECMAScript 11.8.5. | 258 // (undefined <= undefined) == false! See ECMAScript 11.8.5. |
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| 5839 MemOperand(fp, 6 * kPointerSize), NULL); | 5833 MemOperand(fp, 6 * kPointerSize), NULL); |
| 5840 } | 5834 } |
| 5841 | 5835 |
| 5842 | 5836 |
| 5843 #undef __ | 5837 #undef __ |
| 5844 | 5838 |
| 5845 } // namespace internal | 5839 } // namespace internal |
| 5846 } // namespace v8 | 5840 } // namespace v8 |
| 5847 | 5841 |
| 5848 #endif // V8_TARGET_ARCH_ARM64 | 5842 #endif // V8_TARGET_ARCH_ARM64 |
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