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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 #if V8_TARGET_ARCH_S390 | 5 #if V8_TARGET_ARCH_S390 |
6 | 6 |
7 #include "src/code-stubs.h" | 7 #include "src/code-stubs.h" |
8 #include "src/api-arguments.h" | 8 #include "src/api-arguments.h" |
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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199 // so we do the second best thing - test it ourselves. | 199 // so we do the second best thing - test it ourselves. |
200 // They are both equal and they are not both Smis so both of them are not | 200 // They are both equal and they are not both Smis so both of them are not |
201 // Smis. If it's not a heap number, then return equal. | 201 // Smis. If it's not a heap number, then return equal. |
202 if (cond == lt || cond == gt) { | 202 if (cond == lt || cond == gt) { |
203 // Call runtime on identical JSObjects. | 203 // Call runtime on identical JSObjects. |
204 __ CompareObjectType(r2, r6, r6, FIRST_JS_RECEIVER_TYPE); | 204 __ CompareObjectType(r2, r6, r6, FIRST_JS_RECEIVER_TYPE); |
205 __ bge(slow); | 205 __ bge(slow); |
206 // Call runtime on identical symbols since we need to throw a TypeError. | 206 // Call runtime on identical symbols since we need to throw a TypeError. |
207 __ CmpP(r6, Operand(SYMBOL_TYPE)); | 207 __ CmpP(r6, Operand(SYMBOL_TYPE)); |
208 __ beq(slow); | 208 __ beq(slow); |
209 // Call runtime on identical SIMD values since we must throw a TypeError. | |
210 __ CmpP(r6, Operand(SIMD128_VALUE_TYPE)); | |
211 __ beq(slow); | |
212 } else { | 209 } else { |
213 __ CompareObjectType(r2, r6, r6, HEAP_NUMBER_TYPE); | 210 __ CompareObjectType(r2, r6, r6, HEAP_NUMBER_TYPE); |
214 __ beq(&heap_number); | 211 __ beq(&heap_number); |
215 // Comparing JS objects with <=, >= is complicated. | 212 // Comparing JS objects with <=, >= is complicated. |
216 if (cond != eq) { | 213 if (cond != eq) { |
217 __ CmpP(r6, Operand(FIRST_JS_RECEIVER_TYPE)); | 214 __ CmpP(r6, Operand(FIRST_JS_RECEIVER_TYPE)); |
218 __ bge(slow); | 215 __ bge(slow); |
219 // Call runtime on identical symbols since we need to throw a TypeError. | 216 // Call runtime on identical symbols since we need to throw a TypeError. |
220 __ CmpP(r6, Operand(SYMBOL_TYPE)); | 217 __ CmpP(r6, Operand(SYMBOL_TYPE)); |
221 __ beq(slow); | 218 __ beq(slow); |
222 // Call runtime on identical SIMD values since we must throw a TypeError. | |
223 __ CmpP(r6, Operand(SIMD128_VALUE_TYPE)); | |
224 __ beq(slow); | |
225 // Normally here we fall through to return_equal, but undefined is | 219 // Normally here we fall through to return_equal, but undefined is |
226 // special: (undefined == undefined) == true, but | 220 // special: (undefined == undefined) == true, but |
227 // (undefined <= undefined) == false! See ECMAScript 11.8.5. | 221 // (undefined <= undefined) == false! See ECMAScript 11.8.5. |
228 if (cond == le || cond == ge) { | 222 if (cond == le || cond == ge) { |
229 __ CmpP(r6, Operand(ODDBALL_TYPE)); | 223 __ CmpP(r6, Operand(ODDBALL_TYPE)); |
230 __ bne(&return_equal); | 224 __ bne(&return_equal); |
231 __ CompareRoot(r2, Heap::kUndefinedValueRootIndex); | 225 __ CompareRoot(r2, Heap::kUndefinedValueRootIndex); |
232 __ bne(&return_equal); | 226 __ bne(&return_equal); |
233 if (cond == le) { | 227 if (cond == le) { |
234 // undefined <= undefined should fail. | 228 // undefined <= undefined should fail. |
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3478 CallApiFunctionAndReturn(masm, api_function_address, thunk_ref, | 3472 CallApiFunctionAndReturn(masm, api_function_address, thunk_ref, |
3479 kStackUnwindSpace, NULL, return_value_operand, NULL); | 3473 kStackUnwindSpace, NULL, return_value_operand, NULL); |
3480 } | 3474 } |
3481 | 3475 |
3482 #undef __ | 3476 #undef __ |
3483 | 3477 |
3484 } // namespace internal | 3478 } // namespace internal |
3485 } // namespace v8 | 3479 } // namespace v8 |
3486 | 3480 |
3487 #endif // V8_TARGET_ARCH_S390 | 3481 #endif // V8_TARGET_ARCH_S390 |
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