src/hydrogen.cc - Issue 7013025: Use type feedback for unary minus, improving the performance on e.g. 3d-cube by

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Unified Diff: src/hydrogen.cc

Issue 7013025: Use type feedback for unary minus, improving the performance on e.g. 3d-cube by (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/

Patch Set: Created 9 years, 7 months ago

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Index: src/hydrogen.cc

===================================================================

--- src/hydrogen.cc (revision 7874)

+++ src/hydrogen.cc (working copy)

@@ -4630,6 +4630,10 @@

CHECK_ALIVE(VisitForValue(expr->expression()));

HValue* value = Pop();

HInstruction* instr = new(zone()) HMul(value, graph_->GetConstantMinus1());

+ TypeInfo info = oracle()->UnaryType(expr);

+ Representation rep = ToRepresentation(info);

+ TraceRepresentation(expr->op(), info, instr, rep);

+ AssumeRepresentation(instr, rep);

ast_context()->ReturnInstruction(instr, expr->id());

}

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