Reviewers: jochen traveling until Jun 23, ulan,
Description:
ARM64: Give LR to the allocator.
By avoiding the 'Call' mechanism for entering the deopt handler, we can
give LR to the register allocator, to treat like any other caller-saved
register. This makes the entry mechanism a little more complicated since
the caller address needs to be constructed manually using adr, but only
in the slow (deopt) path.
BUG=
Please review this at https://codereview.chromium.org/341863002/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files (+90, -25 lines):
M src/arm64/assembler-arm64.h
M src/arm64/deoptimizer-arm64.cc
M src/arm64/lithium-codegen-arm64.cc
M src/arm64/macro-assembler-arm64.h
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