2208
2209 // Set the Evex.Z field to be used to clear all non directed XMM/YMM/ZMM components
2210 void reset_is_clear_context(void) { _is_clear_context = false; }
2211
2212 // Map back to current asembler so that we can manage object level assocation
2213 void set_current_assembler(Assembler *current_assembler) { _current_assembler = current_assembler; }
2214
2215 // Address modifiers used for compressed displacement calculation
2216 void set_address_attributes(int tuple_type, int input_size_in_bits) {
2217 if (VM_Version::supports_evex()) {
2218 _tuple_type = tuple_type;
2219 _input_size_in_bits = input_size_in_bits;
2220 }
2221 }
2222
2223 // Set embedded opmask register specifier.
2224 void set_embedded_opmask_register_specifier(KRegister mask) {
2225 _embedded_opmask_register_specifier = (*mask).encoding() & 0x7;
2226 }
2227
2228 };
2229
2230 #endif // CPU_X86_VM_ASSEMBLER_X86_HPP
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2208
2209 // Set the Evex.Z field to be used to clear all non directed XMM/YMM/ZMM components
2210 void reset_is_clear_context(void) { _is_clear_context = false; }
2211
2212 // Map back to current asembler so that we can manage object level assocation
2213 void set_current_assembler(Assembler *current_assembler) { _current_assembler = current_assembler; }
2214
2215 // Address modifiers used for compressed displacement calculation
2216 void set_address_attributes(int tuple_type, int input_size_in_bits) {
2217 if (VM_Version::supports_evex()) {
2218 _tuple_type = tuple_type;
2219 _input_size_in_bits = input_size_in_bits;
2220 }
2221 }
2222
2223 // Set embedded opmask register specifier.
2224 void set_embedded_opmask_register_specifier(KRegister mask) {
2225 _embedded_opmask_register_specifier = (*mask).encoding() & 0x7;
2226 }
2227
2228 // This is shared between the interpreter and C1, and needs to be in multiple
2229 // places for each. The code to invoke the actual sampling methods needs
2230 // to be provided by the user; thus, a macro.
2231 #define HEAP_MONITORING(ma, thread, var_size_in_bytes, con_size_in_bytes, object, t1, t2, sample_invocation) \
2232 do { \
2233 { \
2234 SkipIfEqual skip_if(ma, &HeapMonitor, 0); \
2235 Label skip_sample; \
2236 Register thr = thread; \
2237 if (!thr->is_valid()) { \
2238 NOT_LP64(assert(t1 != noreg, \
2239 "Need temporary register for constants")); \
2240 thr = NOT_LP64(t1) LP64_ONLY(r15_thread); \
2241 NOT_LP64(ma -> get_thread(thr);) \
2242 } \
2243 /* Trigger heap monitoring event */ \
2244 Address bus(thr, \
2245 JavaThread::bytes_until_sample_offset()); \
2246 \
2247 if (var_size_in_bytes->is_valid()) { \
2248 ma -> NOT_LP64(subl) LP64_ONLY(subq)(bus, var_size_in_bytes); \
2249 } else { \
2250 int csib = (con_size_in_bytes); \
2251 assert(t2 != noreg, \
2252 "Need temporary register for constants"); \
2253 ma -> NOT_LP64(movl) LP64_ONLY(mov64)(t2, csib); \
2254 ma -> NOT_LP64(subl) LP64_ONLY(subq)(bus, t2); \
2255 } \
2256 \
2257 ma -> jcc(Assembler::positive, skip_sample); \
2258 \
2259 { \
2260 sample_invocation \
2261 } \
2262 ma -> bind(skip_sample); \
2263 } \
2264 } while(0)
2265
2266 };
2267
2268 #endif // CPU_X86_VM_ASSEMBLER_X86_HPP
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