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comparison src/share/vm/opto/chaitin.cpp @ 673:fbc12e71c476

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6810845: Performance regression in mpegaudio on x64 Summary: Used the outer loop frequency in frequencies checks in RA. Reviewed-by: never, twisti
author kvn
date Thu, 26 Mar 2009 15:04:55 -0700
parents 7bb995fbd3c0
children 04fa5affa478
comparison
equal deleted inserted replaced
672:afd8dfb5c2a6 673:fbc12e71c476
147 #ifndef PRODUCT 147 #ifndef PRODUCT
148 , _trace_spilling(TraceSpilling || C->method_has_option("TraceSpilling")) 148 , _trace_spilling(TraceSpilling || C->method_has_option("TraceSpilling"))
149 #endif 149 #endif
150 { 150 {
151 NOT_PRODUCT( Compile::TracePhase t3("ctorChaitin", &_t_ctorChaitin, TimeCompiler); ) 151 NOT_PRODUCT( Compile::TracePhase t3("ctorChaitin", &_t_ctorChaitin, TimeCompiler); )
152
153 _high_frequency_lrg = MIN2(float(OPTO_LRG_HIGH_FREQ), _cfg._outer_loop_freq);
154
152 uint i,j; 155 uint i,j;
153 // Build a list of basic blocks, sorted by frequency 156 // Build a list of basic blocks, sorted by frequency
154 _blks = NEW_RESOURCE_ARRAY( Block *, _cfg._num_blocks ); 157 _blks = NEW_RESOURCE_ARRAY( Block *, _cfg._num_blocks );
155 // Experiment with sorting strategies to speed compilation 158 // Experiment with sorting strategies to speed compilation
156 double cutoff = BLOCK_FREQUENCY(1.0); // Cutoff for high frequency bucket 159 double cutoff = BLOCK_FREQUENCY(1.0); // Cutoff for high frequency bucket