src/type-info.cc - Issue 8373029: [hydrogen] optimize switch with string clauses

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Unified Diff: src/type-info.cc

Issue 8373029: [hydrogen] optimize switch with string clauses (Closed) Base URL: gh:v8/v8@master

Patch Set: use type feedback to bailout switches with known beforehand string(non-symbol) comparison Created 9 years, 1 month ago

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Index: src/type-info.cc

diff --git a/src/type-info.cc b/src/type-info.cc

index afec71a99a83d0ea7082712057f7e00f37a7e2c4..d522242e61b1fbd333c2d95954cf3f2e6f8ee285 100644

--- a/src/type-info.cc

+++ b/src/type-info.cc

@@ -360,6 +360,10 @@ TypeInfo TypeFeedbackOracle::SwitchType(CaseClause* clause) {

return unknown;

case CompareIC::SMIS:

return TypeInfo::Smi();

+ case CompareIC::STRINGS:

+ return TypeInfo::String();

+ case CompareIC::SYMBOLS:

+ return TypeInfo::Symbol();

case CompareIC::HEAP_NUMBERS:

return TypeInfo::Number();

case CompareIC::OBJECTS: