src/share/vm/opto/block.cpp
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*** old/src/share/vm/opto/block.cpp Tue Sep 15 15:43:35 2015
--- new/src/share/vm/opto/block.cpp Tue Sep 15 15:43:34 2015
*** 391,401 ****
--- 391,401 ----
uint PhaseCFG::build_cfg() {
Arena *a = Thread::current()->resource_area();
VectorSet visited(a);
// Allocate stack with enough space to avoid frequent realloc
! Node_Stack nstack(a, C->unique() >> 1);
! Node_Stack nstack(a, C->live_nodes() >> 1);
nstack.push(_root, 0);
uint sum = 0; // Counter for blocks
while (nstack.is_nonempty()) {
// node and in's index from stack's top
src/share/vm/opto/block.cpp
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