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comparison src/share/vm/c1/c1_LIRGenerator.cpp @ 12955:252d541466ea

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8008242: VerifyOops is broken on SPARC Summary: Fixed displacement issues in SPARC macroassembler and ensure that getClass intrinsic temporary result is T_METADATA Reviewed-by: kvn, twisti
author morris
date Fri, 18 Oct 2013 12:15:32 -0700
parents ce0cc25bc5e2
children 5ccbab1c69f3
comparison
equal deleted inserted replaced
12954:e3b736cf4fa3 12955:252d541466ea
1263 void LIRGenerator::do_getClass(Intrinsic* x) { 1263 void LIRGenerator::do_getClass(Intrinsic* x) {
1264 assert(x->number_of_arguments() == 1, "wrong type"); 1264 assert(x->number_of_arguments() == 1, "wrong type");
1265 1265
1266 LIRItem rcvr(x->argument_at(0), this); 1266 LIRItem rcvr(x->argument_at(0), this);
1267 rcvr.load_item(); 1267 rcvr.load_item();
1268 LIR_Opr temp = new_register(T_METADATA);
1268 LIR_Opr result = rlock_result(x); 1269 LIR_Opr result = rlock_result(x);
1269 1270
1270 // need to perform the null check on the rcvr 1271 // need to perform the null check on the rcvr
1271 CodeEmitInfo* info = NULL; 1272 CodeEmitInfo* info = NULL;
1272 if (x->needs_null_check()) { 1273 if (x->needs_null_check()) {
1273 info = state_for(x); 1274 info = state_for(x);
1274 } 1275 }
1275 __ move(new LIR_Address(rcvr.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), result, info); 1276
1276 __ move_wide(new LIR_Address(result, in_bytes(Klass::java_mirror_offset()), T_OBJECT), result); 1277 // FIXME T_ADDRESS should actually be T_METADATA but it can't because the
1278 // meaning of these two is mixed up (see JDK-8026837).
1279 __ move(new LIR_Address(rcvr.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), temp, info);
1280 __ move_wide(new LIR_Address(temp, in_bytes(Klass::java_mirror_offset()), T_OBJECT), result);
1277 } 1281 }
1278 1282
1279 1283
1280 // Example: Thread.currentThread() 1284 // Example: Thread.currentThread()
1281 void LIRGenerator::do_currentThread(Intrinsic* x) { 1285 void LIRGenerator::do_currentThread(Intrinsic* x) {