Commit Graph

12 Commits

Author SHA1 Message Date
kmillikin@chromium.org
a53c70c788 Eliminate most of the jump target jumping, branching, and binding
overhead on the ARM platform.

Because virtual frames are always in memory, there is no work to be
done for control flow except in the case of breaking or continuing
when there is extra statement state on the stack.

Review URL: http://codereview.chromium.org/165230

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2655 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-08-10 11:13:34 +00:00
kmillikin@chromium.org
b318835cdc First round of JumpTarget simplification. Remove dead functions (jumps,
branches, and bind with more than two arguments).  Remove unneeded
variable (the "watermark" on virtual frames).

Review URL: http://codereview.chromium.org/125045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2153 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-06-12 11:25:13 +00:00
kmillikin@chromium.org
9c829fafe9 Change the register allocator so that it no longer tracks references
to the platform-specific reserved registers.  They are always in use
for their intended purpose, cannot appear in the virtual frame, and
can be freely used without allocation in the code generator.

Review URL: http://codereview.chromium.org/113837

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2061 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-05-27 07:53:47 +00:00
mikhail.naganov@gmail.com
30a0a7de43 Split nested namespaces declaration in two lines in accordance with C++ Style Guide.
This issue was raised by Brett Wilson while reviewing my changelist for readability. Craig Silverstein (one of C++ SG maintainers) confirmed that we should declare one namespace per line. Our way of namespaces closing seems not violating style guides (there is no clear agreement on it), so I left it intact.

Review URL: http://codereview.chromium.org/115756


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2038 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-05-25 10:05:56 +00:00
kmillikin@chromium.org
a77d81c59b Fix a failure to correctly set the static type on a frame element at a
backward jump.  The frame entering the backward block is not used, so
the this is mostly just a bookkeeping change.
Review URL: http://codereview.chromium.org/115464

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1989 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-05-18 13:16:35 +00:00
ager@chromium.org
ef85ba46b0 First round of size reduction for JumpTargets. Reduce their size by
two words: there is no reason to keep a pointer to the current code
generator and macro assembler in the JumpTarget.
Review URL: http://codereview.chromium.org/113458

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1987 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-05-18 12:26:59 +00:00
kmillikin@chromium.org
f579685469 Remove the redundant flags is_bound_ and is_linked_ from the
JumpTarget class in favor of using other internal state.

Review URL: http://codereview.chromium.org/113456

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1966 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-05-15 11:17:29 +00:00
kmillikin@chromium.org
6e5de93ad3 Bypass an expensive computation of a basic block's entry frame for a
common case of a single forward edge (a fall-through).  This includes
exits from deferred code.

The fall-through frame is used, after removing constants and copies
above the high-water mark.
Review URL: http://codereview.chromium.org/113400

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1960 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-05-15 08:08:52 +00:00
bak@chromium.org
9e02f380f0 Removed the delete calls to ZoneObjects.
Review URL: http://codereview.chromium.org/115348

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1948 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-05-14 11:36:10 +00:00
kmillikin@chromium.org
ebbaeb3655 Initial bypass of JumpTarget::ComputeEntryFrame for deferred code
entry labels where it is statically safe.

Review URL: http://codereview.chromium.org/115296

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1943 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-05-14 07:38:44 +00:00
erik.corry@gmail.com
9a9e09ee73 Unbreak IA32 generated code coverage.
Review URL: http://codereview.chromium.org/100156

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1814 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-04-29 11:04:28 +00:00
lrn@chromium.org
a4d756a1c8 Move backend specific files to separate directories.
Move ia32 and arm specific files to subdirectories to make it easier to add more backends.

Review URL: http://codereview.chromium.org/92068


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1782 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-04-23 12:06:38 +00:00