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comparison src/cpu/x86/vm/interp_masm_x86_64.cpp @ 3852:fdb992d83a87

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7071653: JSR 292: call site change notification should be pushed not pulled Reviewed-by: kvn, never, bdelsart
author twisti
date Tue, 16 Aug 2011 04:14:05 -0700
parents 341a57af9b0a
children f08d439fab8c
comparison
equal deleted inserted replaced
3851:95134e034042 3852:fdb992d83a87
231 231
232 void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, 232 void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache,
233 Register index, 233 Register index,
234 int bcp_offset, 234 int bcp_offset,
235 size_t index_size) { 235 size_t index_size) {
236 assert(cache != index, "must use different registers"); 236 assert_different_registers(cache, index);
237 get_cache_index_at_bcp(index, bcp_offset, index_size); 237 get_cache_index_at_bcp(index, bcp_offset, index_size);
238 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); 238 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
239 assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below"); 239 assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below");
240 // convert from field index to ConstantPoolCacheEntry index 240 // convert from field index to ConstantPoolCacheEntry index
241 shll(index, 2); 241 shll(index, 2);
242 }
243
244
245 void InterpreterMacroAssembler::get_cache_and_index_and_bytecode_at_bcp(Register cache,
246 Register index,
247 Register bytecode,
248 int byte_no,
249 int bcp_offset,
250 size_t index_size) {
251 get_cache_and_index_at_bcp(cache, index, bcp_offset, index_size);
252 // We use a 32-bit load here since the layout of 64-bit words on
253 // little-endian machines allow us that.
254 movl(bytecode, Address(cache, index, Address::times_ptr, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset()));
255 const int shift_count = (1 + byte_no) * BitsPerByte;
256 shrl(bytecode, shift_count);
257 andl(bytecode, 0xFF);
242 } 258 }
243 259
244 260
245 void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, 261 void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache,
246 Register tmp, 262 Register tmp,