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Issue 6697023: Merge 6800:7180 from the bleeding edge branch to the experimental/gc branch. (Closed) Base URL: http://v8.googlecode.com/svn/branches/experimental/gc/
Patch Set: Created 9 years, 9 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2011 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
11 // with the distribution. 11 // with the distribution.
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183 } 183 }
184 184
185 // Indicate that code has changed. 185 // Indicate that code has changed.
186 CPU::FlushICache(pc_, instruction_count); 186 CPU::FlushICache(pc_, instruction_count);
187 } 187 }
188 188
189 189
190 // ----------------------------------------------------------------------------- 190 // -----------------------------------------------------------------------------
191 // Register constants. 191 // Register constants.
192 192
193 const int Register::registerCodeByAllocationIndex[kNumAllocatableRegisters] = { 193 const int Register::kRegisterCodeByAllocationIndex[kNumAllocatableRegisters] = {
194 // rax, rbx, rdx, rcx, rdi, r8, r9, r11, r14, r12 194 // rax, rbx, rdx, rcx, rdi, r8, r9, r11, r14, r15
195 0, 3, 2, 1, 7, 8, 9, 11, 14, 12 195 0, 3, 2, 1, 7, 8, 9, 11, 14, 15
196 }; 196 };
197 197
198 const int Register::allocationIndexByRegisterCode[kNumRegisters] = { 198 const int Register::kAllocationIndexByRegisterCode[kNumRegisters] = {
199 0, 3, 2, 1, -1, -1, -1, 4, 5, 6, -1, 7, 9, -1, 8, -1 199 0, 3, 2, 1, -1, -1, -1, 4, 5, 6, -1, 7, -1, -1, 8, 9
200 }; 200 };
201 201
202 202
203 // ----------------------------------------------------------------------------- 203 // -----------------------------------------------------------------------------
204 // Implementation of Operand 204 // Implementation of Operand
205 205
206 Operand::Operand(Register base, int32_t disp) : rex_(0) { 206 Operand::Operand(Register base, int32_t disp) : rex_(0) {
207 len_ = 1; 207 len_ = 1;
208 if (base.is(rsp) || base.is(r12)) { 208 if (base.is(rsp) || base.is(r12)) {
209 // SIB byte is needed to encode (rsp + offset) or (r12 + offset). 209 // SIB byte is needed to encode (rsp + offset) or (r12 + offset).
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331 // ----------------------------------------------------------------------------- 331 // -----------------------------------------------------------------------------
332 // Implementation of Assembler. 332 // Implementation of Assembler.
333 333
334 #ifdef GENERATED_CODE_COVERAGE 334 #ifdef GENERATED_CODE_COVERAGE
335 static void InitCoverageLog(); 335 static void InitCoverageLog();
336 #endif 336 #endif
337 337
338 byte* Assembler::spare_buffer_ = NULL; 338 byte* Assembler::spare_buffer_ = NULL;
339 339
340 Assembler::Assembler(void* buffer, int buffer_size) 340 Assembler::Assembler(void* buffer, int buffer_size)
341 : code_targets_(100), positions_recorder_(this) { 341 : code_targets_(100),
342 positions_recorder_(this),
343 emit_debug_code_(FLAG_debug_code) {
342 if (buffer == NULL) { 344 if (buffer == NULL) {
343 // Do our own buffer management. 345 // Do our own buffer management.
344 if (buffer_size <= kMinimalBufferSize) { 346 if (buffer_size <= kMinimalBufferSize) {
345 buffer_size = kMinimalBufferSize; 347 buffer_size = kMinimalBufferSize;
346 348
347 if (spare_buffer_ != NULL) { 349 if (spare_buffer_ != NULL) {
348 buffer = spare_buffer_; 350 buffer = spare_buffer_;
349 spare_buffer_ = NULL; 351 spare_buffer_ = NULL;
350 } 352 }
351 } 353 }
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2988 EnsureSpace ensure_space(this); 2990 EnsureSpace ensure_space(this);
2989 last_pc_ = pc_; 2991 last_pc_ = pc_;
2990 emit(0xF2); 2992 emit(0xF2);
2991 emit_optional_rex_32(dst, src); 2993 emit_optional_rex_32(dst, src);
2992 emit(0x0F); 2994 emit(0x0F);
2993 emit(0x5E); 2995 emit(0x5E);
2994 emit_sse_operand(dst, src); 2996 emit_sse_operand(dst, src);
2995 } 2997 }
2996 2998
2997 2999
3000 void Assembler::andpd(XMMRegister dst, XMMRegister src) {
3001 EnsureSpace ensure_space(this);
3002 last_pc_ = pc_;
3003 emit(0x66);
3004 emit_optional_rex_32(dst, src);
3005 emit(0x0F);
3006 emit(0x54);
3007 emit_sse_operand(dst, src);
3008 }
3009
3010
3011 void Assembler::orpd(XMMRegister dst, XMMRegister src) {
3012 EnsureSpace ensure_space(this);
3013 last_pc_ = pc_;
3014 emit(0x66);
3015 emit_optional_rex_32(dst, src);
3016 emit(0x0F);
3017 emit(0x56);
3018 emit_sse_operand(dst, src);
3019 }
3020
3021
2998 void Assembler::xorpd(XMMRegister dst, XMMRegister src) { 3022 void Assembler::xorpd(XMMRegister dst, XMMRegister src) {
2999 EnsureSpace ensure_space(this); 3023 EnsureSpace ensure_space(this);
3000 last_pc_ = pc_; 3024 last_pc_ = pc_;
3001 emit(0x66); 3025 emit(0x66);
3002 emit_optional_rex_32(dst, src); 3026 emit_optional_rex_32(dst, src);
3003 emit(0x0F); 3027 emit(0x0F);
3004 emit(0x57); 3028 emit(0x57);
3005 emit_sse_operand(dst, src); 3029 emit_sse_operand(dst, src);
3006 } 3030 }
3007 3031
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3085 3109
3086 void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) { 3110 void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) {
3087 ASSERT(rmode != RelocInfo::NONE); 3111 ASSERT(rmode != RelocInfo::NONE);
3088 // Don't record external references unless the heap will be serialized. 3112 // Don't record external references unless the heap will be serialized.
3089 if (rmode == RelocInfo::EXTERNAL_REFERENCE) { 3113 if (rmode == RelocInfo::EXTERNAL_REFERENCE) {
3090 #ifdef DEBUG 3114 #ifdef DEBUG
3091 if (!Serializer::enabled()) { 3115 if (!Serializer::enabled()) {
3092 Serializer::TooLateToEnableNow(); 3116 Serializer::TooLateToEnableNow();
3093 } 3117 }
3094 #endif 3118 #endif
3095 if (!Serializer::enabled() && !FLAG_debug_code) { 3119 if (!Serializer::enabled() && !emit_debug_code()) {
3096 return; 3120 return;
3097 } 3121 }
3098 } 3122 }
3099 RelocInfo rinfo(pc_, rmode, data); 3123 RelocInfo rinfo(pc_, rmode, data);
3100 reloc_info_writer.Write(&rinfo); 3124 reloc_info_writer.Write(&rinfo);
3101 } 3125 }
3102 3126
3103 void Assembler::RecordJSReturn() { 3127 void Assembler::RecordJSReturn() {
3104 positions_recorder()->WriteRecordedPositions(); 3128 positions_recorder()->WriteRecordedPositions();
3105 EnsureSpace ensure_space(this); 3129 EnsureSpace ensure_space(this);
3106 RecordRelocInfo(RelocInfo::JS_RETURN); 3130 RecordRelocInfo(RelocInfo::JS_RETURN);
3107 } 3131 }
3108 3132
3109 3133
3110 void Assembler::RecordDebugBreakSlot() { 3134 void Assembler::RecordDebugBreakSlot() {
3111 positions_recorder()->WriteRecordedPositions(); 3135 positions_recorder()->WriteRecordedPositions();
3112 EnsureSpace ensure_space(this); 3136 EnsureSpace ensure_space(this);
3113 RecordRelocInfo(RelocInfo::DEBUG_BREAK_SLOT); 3137 RecordRelocInfo(RelocInfo::DEBUG_BREAK_SLOT);
3114 } 3138 }
3115 3139
3116 3140
3117 void Assembler::RecordComment(const char* msg) { 3141 void Assembler::RecordComment(const char* msg, bool force) {
3118 if (FLAG_code_comments) { 3142 if (FLAG_code_comments || force) {
3119 EnsureSpace ensure_space(this); 3143 EnsureSpace ensure_space(this);
3120 RecordRelocInfo(RelocInfo::COMMENT, reinterpret_cast<intptr_t>(msg)); 3144 RecordRelocInfo(RelocInfo::COMMENT, reinterpret_cast<intptr_t>(msg));
3121 } 3145 }
3122 } 3146 }
3123 3147
3124 3148
3125 const int RelocInfo::kApplyMask = RelocInfo::kCodeTargetMask | 3149 const int RelocInfo::kApplyMask = RelocInfo::kCodeTargetMask |
3126 1 << RelocInfo::INTERNAL_REFERENCE; 3150 1 << RelocInfo::INTERNAL_REFERENCE;
3127 3151
3128 3152
3129 bool RelocInfo::IsCodedSpecially() { 3153 bool RelocInfo::IsCodedSpecially() {
3130 // The deserializer needs to know whether a pointer is specially coded. Being 3154 // The deserializer needs to know whether a pointer is specially coded. Being
3131 // specially coded on x64 means that it is a relative 32 bit address, as used 3155 // specially coded on x64 means that it is a relative 32 bit address, as used
3132 // by branch instructions. 3156 // by branch instructions.
3133 return (1 << rmode_) & kApplyMask; 3157 return (1 << rmode_) & kApplyMask;
3134 } 3158 }
3135 3159
3136 3160
3137 3161
3138 } } // namespace v8::internal 3162 } } // namespace v8::internal
3139 3163
3140 #endif // V8_TARGET_ARCH_X64 3164 #endif // V8_TARGET_ARCH_X64
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