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fpizlo@apple.com authored
https://bugs.webkit.org/show_bug.cgi?id=68597 Reviewed by Darin Adler. This adds support for ArithDiv speculating integer, and speculating that the result is integer (i.e. remainder = 0). This is a 4% win on Kraken and a 1% loss on V8. * bytecode/CodeBlock.h: * dfg/DFGByteCodeParser.cpp: (JSC::DFG::ByteCodeParser::makeDivSafe): (JSC::DFG::ByteCodeParser::parseBlock): * dfg/DFGNode.h: (JSC::DFG::Node::hasArithNodeFlags): * dfg/DFGPropagator.cpp: (JSC::DFG::Propagator::propagateArithNodeFlags): (JSC::DFG::Propagator::propagateNodePredictions): (JSC::DFG::Propagator::fixupNode): * dfg/DFGSpeculativeJIT.cpp: (JSC::DFG::SpeculativeJIT::compile): * jit/JITArithmetic.cpp: (JSC::JIT::emit_op_div): git-svn-id: http://svn.webkit.org/repository/webkit/trunk@95754 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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