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comparison src/share/vm/opto/parseHelper.cpp @ 1080:7c57aead6d3e

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6892658: C2 should optimize some stringbuilder patterns Reviewed-by: kvn, twisti
author never
date Thu, 12 Nov 2009 09:24:21 -0800
parents bd02caa94611
children 87684f1a88b5
comparison
equal deleted inserted replaced
1078:8e7adf982378 1080:7c57aead6d3e
219 Node* kls = makecon(TypeKlassPtr::make(klass)); 219 Node* kls = makecon(TypeKlassPtr::make(klass));
220 Node* obj = new_instance(kls); 220 Node* obj = new_instance(kls);
221 221
222 // Push resultant oop onto stack 222 // Push resultant oop onto stack
223 push(obj); 223 push(obj);
224
225 // Keep track of whether opportunities exist for StringBuilder
226 // optimizations.
227 if (OptimizeStringConcat &&
228 (klass == C->env()->StringBuilder_klass() ||
229 klass == C->env()->StringBuffer_klass())) {
230 C->set_has_stringbuilder(true);
231 }
224 } 232 }
225 233
226 #ifndef PRODUCT 234 #ifndef PRODUCT
227 //------------------------------dump_map_adr_mem------------------------------- 235 //------------------------------dump_map_adr_mem-------------------------------
228 // Debug dump of the mapping from address types to MergeMemNode indices. 236 // Debug dump of the mapping from address types to MergeMemNode indices.