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Issue 12638011: Revert r13901 to reland with proper credit to external contributor. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 9 months ago
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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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834 L->link_to(pc_offset() - sizeof(int32_t)); 834 L->link_to(pc_offset() - sizeof(int32_t));
835 } else { 835 } else {
836 ASSERT(L->is_unused()); 836 ASSERT(L->is_unused());
837 int32_t current = pc_offset(); 837 int32_t current = pc_offset();
838 emitl(current); 838 emitl(current);
839 L->link_to(current); 839 L->link_to(current);
840 } 840 }
841 } 841 }
842 842
843 843
844 void Assembler::call(Address entry, RelocInfo::Mode rmode) {
845 ASSERT(RelocInfo::IsRuntimeEntry(rmode));
846 positions_recorder()->WriteRecordedPositions();
847 EnsureSpace ensure_space(this);
848 // 1110 1000 #32-bit disp.
849 emit(0xE8);
850 emit_runtime_entry(entry, rmode);
851 }
852
853
854 void Assembler::call(Handle<Code> target, 844 void Assembler::call(Handle<Code> target,
855 RelocInfo::Mode rmode, 845 RelocInfo::Mode rmode,
856 TypeFeedbackId ast_id) { 846 TypeFeedbackId ast_id) {
857 positions_recorder()->WriteRecordedPositions(); 847 positions_recorder()->WriteRecordedPositions();
858 EnsureSpace ensure_space(this); 848 EnsureSpace ensure_space(this);
859 // 1110 1000 #32-bit disp. 849 // 1110 1000 #32-bit disp.
860 emit(0xE8); 850 emit(0xE8);
861 emit_code_target(target, rmode, ast_id); 851 emit_code_target(target, rmode, ast_id);
862 } 852 }
863 853
(...skipping 386 matching lines...) Expand 10 before | Expand all | Expand 10 after
1250 ASSERT(L->is_unused()); 1240 ASSERT(L->is_unused());
1251 emit(0x0F); 1241 emit(0x0F);
1252 emit(0x80 | cc); 1242 emit(0x80 | cc);
1253 int32_t current = pc_offset(); 1243 int32_t current = pc_offset();
1254 emitl(current); 1244 emitl(current);
1255 L->link_to(current); 1245 L->link_to(current);
1256 } 1246 }
1257 } 1247 }
1258 1248
1259 1249
1260 void Assembler::j(Condition cc, Address entry, RelocInfo::Mode rmode) {
1261 ASSERT(RelocInfo::IsRuntimeEntry(rmode));
1262 EnsureSpace ensure_space(this);
1263 ASSERT(is_uint4(cc));
1264 emit(0x0F);
1265 emit(0x80 | cc);
1266 emit_runtime_entry(entry, rmode);
1267 }
1268
1269
1270 void Assembler::j(Condition cc, 1250 void Assembler::j(Condition cc,
1271 Handle<Code> target, 1251 Handle<Code> target,
1272 RelocInfo::Mode rmode) { 1252 RelocInfo::Mode rmode) {
1273 EnsureSpace ensure_space(this); 1253 EnsureSpace ensure_space(this);
1274 ASSERT(is_uint4(cc)); 1254 ASSERT(is_uint4(cc));
1275 // 0000 1111 1000 tttn #32-bit disp. 1255 // 0000 1111 1000 tttn #32-bit disp.
1276 emit(0x0F); 1256 emit(0x0F);
1277 emit(0x80 | cc); 1257 emit(0x80 | cc);
1278 emit_code_target(target, rmode); 1258 emit_code_target(target, rmode);
1279 } 1259 }
(...skipping 42 matching lines...) Expand 10 before | Expand all | Expand 10 after
1322 1302
1323 1303
1324 void Assembler::jmp(Handle<Code> target, RelocInfo::Mode rmode) { 1304 void Assembler::jmp(Handle<Code> target, RelocInfo::Mode rmode) {
1325 EnsureSpace ensure_space(this); 1305 EnsureSpace ensure_space(this);
1326 // 1110 1001 #32-bit disp. 1306 // 1110 1001 #32-bit disp.
1327 emit(0xE9); 1307 emit(0xE9);
1328 emit_code_target(target, rmode); 1308 emit_code_target(target, rmode);
1329 } 1309 }
1330 1310
1331 1311
1332 void Assembler::jmp(Address entry, RelocInfo::Mode rmode) {
1333 ASSERT(RelocInfo::IsRuntimeEntry(rmode));
1334 EnsureSpace ensure_space(this);
1335 ASSERT(RelocInfo::IsRuntimeEntry(rmode));
1336 emit(0xE9);
1337 emit_runtime_entry(entry, rmode);
1338 }
1339
1340
1341 void Assembler::jmp(Register target) { 1312 void Assembler::jmp(Register target) {
1342 EnsureSpace ensure_space(this); 1313 EnsureSpace ensure_space(this);
1343 // Opcode FF/4 r64. 1314 // Opcode FF/4 r64.
1344 emit_optional_rex_32(target); 1315 emit_optional_rex_32(target);
1345 emit(0xFF); 1316 emit(0xFF);
1346 emit_modrm(0x4, target); 1317 emit_modrm(0x4, target);
1347 } 1318 }
1348 1319
1349 1320
1350 void Assembler::jmp(const Operand& src) { 1321 void Assembler::jmp(const Operand& src) {
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3071 3042
3072 void Assembler::RecordComment(const char* msg, bool force) { 3043 void Assembler::RecordComment(const char* msg, bool force) {
3073 if (FLAG_code_comments || force) { 3044 if (FLAG_code_comments || force) {
3074 EnsureSpace ensure_space(this); 3045 EnsureSpace ensure_space(this);
3075 RecordRelocInfo(RelocInfo::COMMENT, reinterpret_cast<intptr_t>(msg)); 3046 RecordRelocInfo(RelocInfo::COMMENT, reinterpret_cast<intptr_t>(msg));
3076 } 3047 }
3077 } 3048 }
3078 3049
3079 3050
3080 const int RelocInfo::kApplyMask = RelocInfo::kCodeTargetMask | 3051 const int RelocInfo::kApplyMask = RelocInfo::kCodeTargetMask |
3081 1 << RelocInfo::RUNTIME_ENTRY |
3082 1 << RelocInfo::INTERNAL_REFERENCE | 3052 1 << RelocInfo::INTERNAL_REFERENCE |
3083 1 << RelocInfo::CODE_AGE_SEQUENCE; 3053 1 << RelocInfo::CODE_AGE_SEQUENCE;
3084 3054
3085 3055
3086 bool RelocInfo::IsCodedSpecially() { 3056 bool RelocInfo::IsCodedSpecially() {
3087 // The deserializer needs to know whether a pointer is specially coded. Being 3057 // The deserializer needs to know whether a pointer is specially coded. Being
3088 // specially coded on x64 means that it is a relative 32 bit address, as used 3058 // specially coded on x64 means that it is a relative 32 bit address, as used
3089 // by branch instructions. 3059 // by branch instructions.
3090 return (1 << rmode_) & kApplyMask; 3060 return (1 << rmode_) & kApplyMask;
3091 } 3061 }
3092 3062
3093 } } // namespace v8::internal 3063 } } // namespace v8::internal
3094 3064
3095 #endif // V8_TARGET_ARCH_X64 3065 #endif // V8_TARGET_ARCH_X64
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