Reviewers: ulan, rmcilroy, jochen,
Description:
A64: Use a scope utility to allocate scratch registers.
This replaces Tmp0() and Tmp1() with a more flexible scratch register
pool. A scope-based utility can temporarily acquire registers from this
pool as needed.
We no longer have to worry about whether to use Tmp0(), Tmp1() or
something else; the scope can just get the next available scratch
register.
BUG=
Please review this at https://codereview.chromium.org/164793003/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files (+704, -403 lines):
M src/a64/assembler-a64.h
M src/a64/code-stubs-a64.cc
M src/a64/debug-a64.cc
M src/a64/deoptimizer-a64.cc
M src/a64/full-codegen-a64.cc
M src/a64/ic-a64.cc
M src/a64/lithium-codegen-a64.cc
M src/a64/macro-assembler-a64-inl.h
M src/a64/macro-assembler-a64.h
M src/a64/macro-assembler-a64.cc
M src/a64/stub-cache-a64.cc
M test/cctest/test-assembler-a64.cc
M test/cctest/test-utils-a64.cc
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