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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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990 | 990 |
991 // Count leading zeros in a 32 bit word. On ARM5 and later it uses the clz | 991 // Count leading zeros in a 32 bit word. On ARM5 and later it uses the clz |
992 // instruction. On pre-ARM5 hardware this routine gives the wrong answer | 992 // instruction. On pre-ARM5 hardware this routine gives the wrong answer |
993 // for 0 (31 instead of 32). Source and scratch can be the same in which case | 993 // for 0 (31 instead of 32). Source and scratch can be the same in which case |
994 // the source is clobbered. Source and zeros can also be the same in which | 994 // the source is clobbered. Source and zeros can also be the same in which |
995 // case scratch should be a different register. | 995 // case scratch should be a different register. |
996 void CountLeadingZeros(Register zeros, | 996 void CountLeadingZeros(Register zeros, |
997 Register source, | 997 Register source, |
998 Register scratch); | 998 Register scratch); |
999 | 999 |
| 1000 // Check whether d16-d31 are available on the CPU. The result is given by the |
| 1001 // Z condition flag: Z==0 if d16-d31 available, Z==1 otherwise. |
| 1002 void CheckFor32DRegs(Register scratch); |
| 1003 |
| 1004 |
1000 // --------------------------------------------------------------------------- | 1005 // --------------------------------------------------------------------------- |
1001 // Runtime calls | 1006 // Runtime calls |
1002 | 1007 |
1003 // Call a code stub. | 1008 // Call a code stub. |
1004 void CallStub(CodeStub* stub, | 1009 void CallStub(CodeStub* stub, |
1005 TypeFeedbackId ast_id = TypeFeedbackId::None(), | 1010 TypeFeedbackId ast_id = TypeFeedbackId::None(), |
1006 Condition cond = al); | 1011 Condition cond = al); |
1007 | 1012 |
1008 // Call a code stub. | 1013 // Call a code stub. |
1009 void TailCallStub(CodeStub* stub, Condition cond = al); | 1014 void TailCallStub(CodeStub* stub, Condition cond = al); |
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1427 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) | 1432 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) |
1428 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> | 1433 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> |
1429 #else | 1434 #else |
1430 #define ACCESS_MASM(masm) masm-> | 1435 #define ACCESS_MASM(masm) masm-> |
1431 #endif | 1436 #endif |
1432 | 1437 |
1433 | 1438 |
1434 } } // namespace v8::internal | 1439 } } // namespace v8::internal |
1435 | 1440 |
1436 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ | 1441 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ |
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