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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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