Mercurial > hg > truffle
comparison src/share/vm/opto/gcm.cpp @ 4115:1bd45abaa507
6890673: Eliminate allocations immediately after EA
Summary: Try to eliminate allocations and related locks immediately after escape analysis.
Reviewed-by: never
author | kvn |
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date | Wed, 16 Nov 2011 09:13:57 -0800 |
parents | c7b60b601eb4 |
children | cf407b7d3d78 |
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4114:6729bbc1fcd6 | 4115:1bd45abaa507 |
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93 void PhaseCFG::replace_block_proj_ctrl( Node *n ) { | 93 void PhaseCFG::replace_block_proj_ctrl( Node *n ) { |
94 const Node *in0 = n->in(0); | 94 const Node *in0 = n->in(0); |
95 assert(in0 != NULL, "Only control-dependent"); | 95 assert(in0 != NULL, "Only control-dependent"); |
96 const Node *p = in0->is_block_proj(); | 96 const Node *p = in0->is_block_proj(); |
97 if (p != NULL && p != n) { // Control from a block projection? | 97 if (p != NULL && p != n) { // Control from a block projection? |
98 assert(!n->pinned() || n->is_MachConstantBase() || n->is_SafePointScalarObject(), "only pinned MachConstantBase or SafePointScalarObject node is expected here"); | 98 assert(!n->pinned() || n->is_MachConstantBase(), "only pinned MachConstantBase node is expected here"); |
99 // Find trailing Region | 99 // Find trailing Region |
100 Block *pb = _bbs[in0->_idx]; // Block-projection already has basic block | 100 Block *pb = _bbs[in0->_idx]; // Block-projection already has basic block |
101 uint j = 0; | 101 uint j = 0; |
102 if (pb->_num_succs != 1) { // More then 1 successor? | 102 if (pb->_num_succs != 1) { // More then 1 successor? |
103 // Search for successor | 103 // Search for successor |