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comparison src/share/vm/c1/c1_IR.cpp @ 1899:42a10fc37986

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6991577: add IfOp optimization to C1 Summary: Ifop optimization for c1 Reviewed-by: never, phh, iveresov
author roland
date Fri, 15 Oct 2010 09:38:20 +0200
parents f02a8bbe6ed4
children f95d63e2154a
comparison
equal deleted inserted replaced
1852:94d77a279225 1899:42a10fc37986
319 class UseCountComputer: public ValueVisitor, BlockClosure { 319 class UseCountComputer: public ValueVisitor, BlockClosure {
320 private: 320 private:
321 void visit(Value* n) { 321 void visit(Value* n) {
322 // Local instructions and Phis for expression stack values at the 322 // Local instructions and Phis for expression stack values at the
323 // start of basic blocks are not added to the instruction list 323 // start of basic blocks are not added to the instruction list
324 if (!(*n)->is_linked()&& (*n)->can_be_linked()) { 324 if (!(*n)->is_linked() && (*n)->can_be_linked()) {
325 assert(false, "a node was not appended to the graph"); 325 assert(false, "a node was not appended to the graph");
326 Compilation::current()->bailout("a node was not appended to the graph"); 326 Compilation::current()->bailout("a node was not appended to the graph");
327 } 327 }
328 // use n's input if not visited before 328 // use n's input if not visited before
329 if (!(*n)->is_pinned() && !(*n)->has_uses()) { 329 if (!(*n)->is_pinned() && !(*n)->has_uses()) {