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Issue 14188016: ARM: clean up code now that ARMv6 is the baseline. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 8 months ago
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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. 1 // Copyright (c) 1994-2006 Sun Microsystems Inc.
2 // All Rights Reserved. 2 // All Rights Reserved.
3 // 3 //
4 // Redistribution and use in source and binary forms, with or without 4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions 5 // modification, are permitted provided that the following conditions
6 // are met: 6 // are met:
7 // 7 //
8 // - Redistributions of source code must retain the above copyright notice, 8 // - Redistributions of source code must retain the above copyright notice,
9 // this list of conditions and the following disclaimer. 9 // this list of conditions and the following disclaimer.
10 // 10 //
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1676 // address. It expects to find the address just after the svc instruction. 1676 // address. It expects to find the address just after the svc instruction.
1677 BlockConstPoolScope block_const_pool(this); 1677 BlockConstPoolScope block_const_pool(this);
1678 if (code >= 0) { 1678 if (code >= 0) {
1679 svc(kStopCode + code, cond); 1679 svc(kStopCode + code, cond);
1680 } else { 1680 } else {
1681 svc(kStopCode + kMaxStopCode, cond); 1681 svc(kStopCode + kMaxStopCode, cond);
1682 } 1682 }
1683 emit(reinterpret_cast<Instr>(msg)); 1683 emit(reinterpret_cast<Instr>(msg));
1684 } 1684 }
1685 #else // def __arm__ 1685 #else // def __arm__
1686 #ifdef CAN_USE_ARMV5_INSTRUCTIONS
1687 if (cond != al) { 1686 if (cond != al) {
1688 Label skip; 1687 Label skip;
1689 b(&skip, NegateCondition(cond)); 1688 b(&skip, NegateCondition(cond));
1690 bkpt(0); 1689 bkpt(0);
1691 bind(&skip); 1690 bind(&skip);
1692 } else { 1691 } else {
1693 bkpt(0); 1692 bkpt(0);
1694 } 1693 }
1695 #else // ndef CAN_USE_ARMV5_INSTRUCTIONS
1696 svc(0x9f0001, cond);
1697 #endif // ndef CAN_USE_ARMV5_INSTRUCTIONS
1698 #endif // def __arm__ 1694 #endif // def __arm__
1699 } 1695 }
1700 1696
1701 1697
1702 void Assembler::bkpt(uint32_t imm16) { // v5 and above 1698 void Assembler::bkpt(uint32_t imm16) { // v5 and above
1703 ASSERT(is_uint16(imm16)); 1699 ASSERT(is_uint16(imm16));
1704 emit(al | B24 | B21 | (imm16 >> 4)*B8 | BKPT | (imm16 & 0xf)); 1700 emit(al | B24 | B21 | (imm16 >> 4)*B8 | BKPT | (imm16 & 0xf));
1705 } 1701 }
1706 1702
1707 1703
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3083 3079
3084 // Since a constant pool was just emitted, move the check offset forward by 3080 // Since a constant pool was just emitted, move the check offset forward by
3085 // the standard interval. 3081 // the standard interval.
3086 next_buffer_check_ = pc_offset() + kCheckPoolInterval; 3082 next_buffer_check_ = pc_offset() + kCheckPoolInterval;
3087 } 3083 }
3088 3084
3089 3085
3090 } } // namespace v8::internal 3086 } } // namespace v8::internal
3091 3087
3092 #endif // V8_TARGET_ARCH_ARM 3088 #endif // V8_TARGET_ARCH_ARM
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