src/cpu/x86/vm/interp_masm_x86_64.cpp
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src/cpu/x86/vm/interp_masm_x86_64.cpp

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*** 231,249 **** void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size) { ! assert(cache != index, "must use different registers"); get_cache_index_at_bcp(index, bcp_offset, index_size); movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below"); // convert from field index to ConstantPoolCacheEntry index shll(index, 2); } void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size) { assert(cache != tmp, "must use different register"); --- 231,265 ---- void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size) { ! assert_different_registers(cache, index); get_cache_index_at_bcp(index, bcp_offset, index_size); movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below"); // convert from field index to ConstantPoolCacheEntry index shll(index, 2); } + void InterpreterMacroAssembler::get_cache_and_index_and_bytecode_at_bcp(Register cache, + Register index, + Register bytecode, + int byte_no, + int bcp_offset, + size_t index_size) { + get_cache_and_index_at_bcp(cache, index, bcp_offset, index_size); + // We use a 32-bit load here since the layout of 64-bit words on + // little-endian machines allow us that. + movl(bytecode, Address(cache, index, Address::times_ptr, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset())); + const int shift_count = (1 + byte_no) * BitsPerByte; + shrl(bytecode, shift_count); + andl(bytecode, 0xFF); + } + + void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size) { assert(cache != tmp, "must use different register");
src/cpu/x86/vm/interp_masm_x86_64.cpp
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