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comparison src/share/vm/runtime/sharedRuntime.cpp @ 1138:dd57230ba8fe

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6893268: additional dynamic language related optimizations in C2 Summary: C2 needs some additional optimizations to be able to handle MethodHandle invokes and invokedynamic instructions at the best performance. Reviewed-by: kvn, never
author twisti
date Tue, 05 Jan 2010 15:21:25 +0100
parents e66fd840cb6b
children 4ce7240d622c
comparison
equal deleted inserted replaced
1137:97125851f396 1138:dd57230ba8fe
2143 // Return argument 0 register. In the LP64 build pointers 2143 // Return argument 0 register. In the LP64 build pointers
2144 // take 2 registers, but the VM wants only the 'main' name. 2144 // take 2 registers, but the VM wants only the 'main' name.
2145 return regs.first(); 2145 return regs.first();
2146 } 2146 }
2147 2147
2148 VMRegPair *SharedRuntime::find_callee_arguments(symbolOop sig, bool is_static, int* arg_size) { 2148 VMRegPair *SharedRuntime::find_callee_arguments(symbolOop sig, bool has_receiver, int* arg_size) {
2149 // This method is returning a data structure allocating as a 2149 // This method is returning a data structure allocating as a
2150 // ResourceObject, so do not put any ResourceMarks in here. 2150 // ResourceObject, so do not put any ResourceMarks in here.
2151 char *s = sig->as_C_string(); 2151 char *s = sig->as_C_string();
2152 int len = (int)strlen(s); 2152 int len = (int)strlen(s);
2153 *s++; len--; // Skip opening paren 2153 *s++; len--; // Skip opening paren
2155 while( *(--t) != ')' ) ; // Find close paren 2155 while( *(--t) != ')' ) ; // Find close paren
2156 2156
2157 BasicType *sig_bt = NEW_RESOURCE_ARRAY( BasicType, 256 ); 2157 BasicType *sig_bt = NEW_RESOURCE_ARRAY( BasicType, 256 );
2158 VMRegPair *regs = NEW_RESOURCE_ARRAY( VMRegPair, 256 ); 2158 VMRegPair *regs = NEW_RESOURCE_ARRAY( VMRegPair, 256 );
2159 int cnt = 0; 2159 int cnt = 0;
2160 if (!is_static) { 2160 if (has_receiver) {
2161 sig_bt[cnt++] = T_OBJECT; // Receiver is argument 0; not in signature 2161 sig_bt[cnt++] = T_OBJECT; // Receiver is argument 0; not in signature
2162 } 2162 }
2163 2163
2164 while( s < t ) { 2164 while( s < t ) {
2165 switch( *s++ ) { // Switch on signature character 2165 switch( *s++ ) { // Switch on signature character