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Issue 6880036: Merge revision 7664 (revert of 7644 and 7632) to trunk. (Closed) Base URL: http://v8.googlecode.com/svn/trunk/
Patch Set: Created 9 years, 8 months ago
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1 // Copyright 2011 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
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141 intptr_t target, RelocInfo::Mode rmode, Condition cond) { 141 intptr_t target, RelocInfo::Mode rmode, Condition cond) {
142 int size = 2 * kInstrSize; 142 int size = 2 * kInstrSize;
143 Instr mov_instr = cond | MOV | LeaveCC; 143 Instr mov_instr = cond | MOV | LeaveCC;
144 if (!Operand(target, rmode).is_single_instruction(mov_instr)) { 144 if (!Operand(target, rmode).is_single_instruction(mov_instr)) {
145 size += kInstrSize; 145 size += kInstrSize;
146 } 146 }
147 return size; 147 return size;
148 } 148 }
149 149
150 150
151 void MacroAssembler::Call(intptr_t target, 151 void MacroAssembler::Call(
152 RelocInfo::Mode rmode, 152 intptr_t target, RelocInfo::Mode rmode, Condition cond) {
153 Condition cond) {
154 // Block constant pool for the call instruction sequence. 153 // Block constant pool for the call instruction sequence.
155 BlockConstPoolScope block_const_pool(this); 154 BlockConstPoolScope block_const_pool(this);
156 #ifdef DEBUG 155 #ifdef DEBUG
157 int pre_position = pc_offset(); 156 int pre_position = pc_offset();
158 #endif 157 #endif
159 158
160 #if USE_BLX 159 #if USE_BLX
161 // On ARMv5 and after the recommended call sequence is: 160 // On ARMv5 and after the recommended call sequence is:
162 // ldr ip, [pc, #...] 161 // ldr ip, [pc, #...]
163 // blx ip 162 // blx ip
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208 #endif 207 #endif
209 } 208 }
210 209
211 210
212 int MacroAssembler::CallSize( 211 int MacroAssembler::CallSize(
213 Handle<Code> code, RelocInfo::Mode rmode, Condition cond) { 212 Handle<Code> code, RelocInfo::Mode rmode, Condition cond) {
214 return CallSize(reinterpret_cast<intptr_t>(code.location()), rmode, cond); 213 return CallSize(reinterpret_cast<intptr_t>(code.location()), rmode, cond);
215 } 214 }
216 215
217 216
218 void MacroAssembler::CallWithAstId(Handle<Code> code, 217 void MacroAssembler::Call(
219 RelocInfo::Mode rmode, 218 Handle<Code> code, RelocInfo::Mode rmode, Condition cond) {
220 unsigned ast_id,
221 Condition cond) {
222 #ifdef DEBUG
223 int pre_position = pc_offset();
224 #endif
225
226 ASSERT(rmode == RelocInfo::CODE_TARGET_WITH_ID);
227 ASSERT(ast_id != kNoASTId);
228 ASSERT(ast_id_for_reloc_info_ == kNoASTId);
229 ast_id_for_reloc_info_ = ast_id;
230 // 'code' is always generated ARM code, never THUMB code
231 Call(reinterpret_cast<intptr_t>(code.location()), rmode, cond);
232
233 #ifdef DEBUG
234 int post_position = pc_offset();
235 CHECK_EQ(pre_position + CallSize(code, rmode, cond), post_position);
236 #endif
237 }
238
239
240 void MacroAssembler::Call(Handle<Code> code,
241 RelocInfo::Mode rmode,
242 Condition cond) {
243 #ifdef DEBUG 219 #ifdef DEBUG
244 int pre_position = pc_offset(); 220 int pre_position = pc_offset();
245 #endif 221 #endif
246 222
247 ASSERT(RelocInfo::IsCodeTarget(rmode)); 223 ASSERT(RelocInfo::IsCodeTarget(rmode));
248 // 'code' is always generated ARM code, never THUMB code 224 // 'code' is always generated ARM code, never THUMB code
249 Call(reinterpret_cast<intptr_t>(code.location()), rmode, cond); 225 Call(reinterpret_cast<intptr_t>(code.location()), rmode, cond);
250 226
251 #ifdef DEBUG 227 #ifdef DEBUG
252 int post_position = pc_offset(); 228 int post_position = pc_offset();
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2950 void CodePatcher::EmitCondition(Condition cond) { 2926 void CodePatcher::EmitCondition(Condition cond) {
2951 Instr instr = Assembler::instr_at(masm_.pc_); 2927 Instr instr = Assembler::instr_at(masm_.pc_);
2952 instr = (instr & ~kCondMask) | cond; 2928 instr = (instr & ~kCondMask) | cond;
2953 masm_.emit(instr); 2929 masm_.emit(instr);
2954 } 2930 }
2955 2931
2956 2932
2957 } } // namespace v8::internal 2933 } } // namespace v8::internal
2958 2934
2959 #endif // V8_TARGET_ARCH_ARM 2935 #endif // V8_TARGET_ARCH_ARM
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