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comparison src/share/vm/opto/loopTransform.cpp @ 14435:da862781b584

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Merge
author kvn
date Thu, 21 Nov 2013 12:30:35 -0800
parents 2b8e28fdf503 94a83e0f9ce1
children abec000618bf
comparison
equal deleted inserted replaced
14434:318d0622a6d7 14435:da862781b584
1962 assert(iff->is_If(), ""); 1962 assert(iff->is_If(), "");
1963 ProjNode* dp = ((IfNode*)iff)->proj_out(1-flip); 1963 ProjNode* dp = ((IfNode*)iff)->proj_out(1-flip);
1964 // Find loads off the surviving projection; remove their control edge 1964 // Find loads off the surviving projection; remove their control edge
1965 for (DUIterator_Fast imax, i = dp->fast_outs(imax); i < imax; i++) { 1965 for (DUIterator_Fast imax, i = dp->fast_outs(imax); i < imax; i++) {
1966 Node* cd = dp->fast_out(i); // Control-dependent node 1966 Node* cd = dp->fast_out(i); // Control-dependent node
1967 if( cd->is_Load() ) { // Loads can now float around in the loop 1967 if (cd->is_Load() && cd->depends_only_on_test()) { // Loads can now float around in the loop
1968 // Allow the load to float around in the loop, or before it 1968 // Allow the load to float around in the loop, or before it
1969 // but NOT before the pre-loop. 1969 // but NOT before the pre-loop.
1970 _igvn.replace_input_of(cd, 0, ctrl); // ctrl, not NULL 1970 _igvn.replace_input_of(cd, 0, ctrl); // ctrl, not NULL
1971 --i; 1971 --i;
1972 --imax; 1972 --imax;