Reviewers: dcarney, titzer, jarin, jvoung, Mircea Trofin,
Message:
Created Revert of Introducing the LLVM greedy register allocator.
Description:
Revert of Introducing the LLVM greedy register allocator. (patchset #10
id:410001 of https://codereview.chromium.org/1061923005/)
Reason for revert:
Breaks Static Initializers test.
http://build.chromium.org/p/client.v8/builders/V8%20Linux64/builds/3210/steps/Static-Initializers/logs/stdio
Original issue's description:
Introducing the LLVM greedy register allocator.
This change aims to introduce the separation of the RegisterAllocator
model,
using the initial prototype for RegisterAllocatorGreedy as proof of
concept.
Summary:
- new flag, turbo-greedy-regalloc, enabling the new allocator. Default
false.
- separated RegisterAllocator into a base type and two derived,
RegisterAllocatorLinear (the one currently used in TurboFan) and
RegisterAllocatorGreedy (the new one).
- initial, untested impementation for the greedy allocator.
BUG=
Committed: https://crrev.com/ec542dea6b6a0cb82d1578a389569d019a59121d
Cr-Commit-Position: refs/heads/master@{#28015}
[email protected],[email protected],[email protected],[email protected],[email protected]
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Please review this at https://codereview.chromium.org/1080953006/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+20, -418 lines):
M src/compiler/pipeline.cc
M src/compiler/register-allocator.h
M src/compiler/register-allocator.cc
M src/flag-definitions.h
M src/zone-containers.h
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