src/hydrogen.cc - Issue 279773002: Fix Array.prototype.push and Array.prototype.unshift for read-only length.

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Unified Diff: src/hydrogen.cc

Issue 279773002: Fix Array.prototype.push and Array.prototype.unshift for read-only length. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: Whitespace Created 6 years, 7 months ago

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Index: src/hydrogen.cc

diff --git a/src/hydrogen.cc b/src/hydrogen.cc

index c5d601ca2e3dde6b2f00a3426077a54d16e1e355..dbb882170be1e953912e6e93808633c6b5d248ac 100644

--- a/src/hydrogen.cc

+++ b/src/hydrogen.cc

@@ -7878,6 +7878,7 @@ bool HOptimizedGraphBuilder::TryInlineBuiltinMethodCall(

ElementsKind elements_kind = receiver_map->elements_kind();

if (!IsFastElementsKind(elements_kind)) return false;

if (receiver_map->is_observed()) return false;

+ if (JSArray::IsReadOnlyLengthDescriptor(receiver_map)) return false;

ASSERT(receiver_map->is_extensible());

// If there may be elements accessors in the prototype chain, the fast

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