src/arm/ic-arm.cc - Issue 17895002: The check for internalized strings relied on the fact that we had less

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Unified Diff: src/arm/ic-arm.cc

Issue 17895002: The check for internalized strings relied on the fact that we had less (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: More comments Created 7 years, 6 months ago

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Index: src/arm/ic-arm.cc

diff --git a/src/arm/ic-arm.cc b/src/arm/ic-arm.cc

index 3d421c1d4fb55aff49135abf0762f8635f2fd196..cc7815188bb540d33f1b90f7f640f9910e0e2770 100644

--- a/src/arm/ic-arm.cc

+++ b/src/arm/ic-arm.cc

@@ -321,7 +321,8 @@ static void GenerateKeyNameCheck(MacroAssembler* masm,

__ tst(hash, Operand(Name::kContainsCachedArrayIndexMask));

__ b(eq, index_string);

- // Is the string internalized?

+ // Is the string internalized? We know it's a string, so a single

+ // bit test is enough.

// map: key map

__ ldrb(hash, FieldMemOperand(map, Map::kInstanceTypeOffset));

STATIC_ASSERT(kInternalizedTag != 0);

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