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comparison src/share/vm/opto/matcher.cpp @ 823:14367225a853

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6841800: Incorrect boundary values behavior for option -XX:MaxLabelRootDepth=0-6 leads to jvm crash Summary: MaxLabelRootDepth value less then 10 is invalid. Reviewed-by: never
author kvn
date Wed, 24 Jun 2009 12:00:51 -0700
parents 04fa5affa478
children fc4be448891f
comparison
equal deleted inserted replaced
822:e306d7c7222c 823:14367225a853
139 #endif 139 #endif
140 140
141 141
142 //---------------------------match--------------------------------------------- 142 //---------------------------match---------------------------------------------
143 void Matcher::match( ) { 143 void Matcher::match( ) {
144 if( MaxLabelRootDepth < 100 ) { // Too small?
145 assert(false, "invalid MaxLabelRootDepth, increase it to 100 minimum");
146 MaxLabelRootDepth = 100;
147 }
144 // One-time initialization of some register masks. 148 // One-time initialization of some register masks.
145 init_spill_mask( C->root()->in(1) ); 149 init_spill_mask( C->root()->in(1) );
146 _return_addr_mask = return_addr(); 150 _return_addr_mask = return_addr();
147 #ifdef _LP64 151 #ifdef _LP64
148 // Pointers take 2 slots in 64-bit land 152 // Pointers take 2 slots in 64-bit land