Reviewers: Toon Verwaest,
Message:
Hi Toon,
Here is the use of symbols we discussed last week. PTAL, thanks!
--Michael
Description:
Symbols for type cells. We can make more efficient code to check against
type
cells in the future if we use symbols, guaranteed not to conflict with user
code. Currently, the "symbols" are the hole and undefined. Undefined may
come in
from the outside.
BUG=
Please review this at https://codereview.chromium.org/181283003/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files (+135, -103 lines):
M include/v8.h
M src/a64/builtins-a64.cc
M src/a64/code-stubs-a64.cc
M src/a64/lithium-codegen-a64.cc
M src/arm/builtins-arm.cc
M src/arm/code-stubs-arm.cc
M src/arm/lithium-codegen-arm.cc
M src/full-codegen.cc
M src/heap.h
M src/heap.cc
M src/ia32/builtins-ia32.cc
M src/ia32/code-stubs-ia32.cc
M src/ia32/lithium-codegen-ia32.cc
M src/objects-inl.h
M src/runtime.cc
M src/x64/builtins-x64.cc
M src/x64/code-stubs-x64.cc
M src/x64/lithium-codegen-x64.cc
M test/cctest/test-heap.cc
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