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| 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 4953 // Allocates a heap number or jumps to the label if the young space is full and | 4953 // Allocates a heap number or jumps to the label if the young space is full and |
| 4954 // a scavenge is needed. | 4954 // a scavenge is needed. |
| 4955 static void AllocateHeapNumber( | 4955 static void AllocateHeapNumber( |
| 4956 MacroAssembler* masm, | 4956 MacroAssembler* masm, |
| 4957 Label* need_gc, // Jump here if young space is full. | 4957 Label* need_gc, // Jump here if young space is full. |
| 4958 Register result, // The tagged address of the new heap number. | 4958 Register result, // The tagged address of the new heap number. |
| 4959 Register scratch1, // A scratch register. | 4959 Register scratch1, // A scratch register. |
| 4960 Register scratch2) { // Another scratch register. | 4960 Register scratch2) { // Another scratch register. |
| 4961 // Allocate an object in the heap for the heap number and tag it as a heap | 4961 // Allocate an object in the heap for the heap number and tag it as a heap |
| 4962 // object. | 4962 // object. |
| 4963 __ AllocateObjectInNewSpace(HeapNumber::kSize / kPointerSize, | 4963 __ AllocateInNewSpace(HeapNumber::kSize / kPointerSize, |
| 4964 result, | 4964 result, |
| 4965 scratch1, | 4965 scratch1, |
| 4966 scratch2, | 4966 scratch2, |
| 4967 need_gc, | 4967 need_gc, |
| 4968 TAG_OBJECT); | 4968 TAG_OBJECT); |
| 4969 | 4969 |
| 4970 // Get heap number map and store it in the allocated object. | 4970 // Get heap number map and store it in the allocated object. |
| 4971 __ LoadRoot(scratch1, Heap::kHeapNumberMapRootIndex); | 4971 __ LoadRoot(scratch1, Heap::kHeapNumberMapRootIndex); |
| 4972 __ str(scratch1, FieldMemOperand(result, HeapObject::kMapOffset)); | 4972 __ str(scratch1, FieldMemOperand(result, HeapObject::kMapOffset)); |
| 4973 } | 4973 } |
| 4974 | 4974 |
| 4975 | 4975 |
| 4976 // We fall into this code if the operands were Smis, but the result was | 4976 // We fall into this code if the operands were Smis, but the result was |
| 4977 // not (eg. overflow). We branch into this code (to the not_smi label) if | 4977 // not (eg. overflow). We branch into this code (to the not_smi label) if |
| 4978 // the operands were not both Smi. The operands are in r0 and r1. In order | 4978 // the operands were not both Smi. The operands are in r0 and r1. In order |
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| 6268 int CompareStub::MinorKey() { | 6268 int CompareStub::MinorKey() { |
| 6269 // Encode the two parameters in a unique 16 bit value. | 6269 // Encode the two parameters in a unique 16 bit value. |
| 6270 ASSERT(static_cast<unsigned>(cc_) >> 28 < (1 << 15)); | 6270 ASSERT(static_cast<unsigned>(cc_) >> 28 < (1 << 15)); |
| 6271 return (static_cast<unsigned>(cc_) >> 27) | (strict_ ? 1 : 0); | 6271 return (static_cast<unsigned>(cc_) >> 27) | (strict_ ? 1 : 0); |
| 6272 } | 6272 } |
| 6273 | 6273 |
| 6274 | 6274 |
| 6275 #undef __ | 6275 #undef __ |
| 6276 | 6276 |
| 6277 } } // namespace v8::internal | 6277 } } // namespace v8::internal |
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