Chris Lattner
7acf9be6c4
move target-independent opcodes out of TargetInstrInfo
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into TargetOpcodes.h. #include the new TargetOpcodes.h
into MachineInstr. Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the
codebase.
llvm-svn: 95687
2010-02-09 19:54:29 +00:00
Jim Grosbach
2101815d36
80 column and whitespace cleanup
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llvm-svn: 92837
2010-01-06 16:48:02 +00:00
David Greene
d91c862004
Change errs() to dbgs().
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llvm-svn: 92093
2009-12-24 00:14:25 +00:00
David Goodwin
2bc2d833ab
<rdar://problem/7453528>. Track only physical registers that are valid for the target.
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llvm-svn: 90970
2009-12-09 17:18:22 +00:00
David Goodwin
7945ead4d8
<rdar://problem/6721894>. Allow multiple registers to be renamed together (super and sub) if necessary to break an anti-dependence.
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llvm-svn: 89722
2009-11-24 00:59:08 +00:00
David Goodwin
d5ef76388e
Restructure code to allow renaming of multiple-register groups for anti-dep breaking.
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llvm-svn: 89511
2009-11-20 23:33:54 +00:00
David Goodwin
8954ccb109
Remove some old experimental code that is no longer needed. Remove additional, speculative scheduling pass as its cost did not translate into significant performance improvement. Minor tweaks.
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llvm-svn: 89471
2009-11-20 19:32:48 +00:00
David Goodwin
b98c542d94
Fix a couple of problems with maintaining liveness information for antidep breaking.
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llvm-svn: 89404
2009-11-19 23:12:37 +00:00
David Goodwin
e1d06f2239
Allow target to specify regclass for which antideps will only be broken along the critical path.
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llvm-svn: 88682
2009-11-13 19:52:48 +00:00
David Goodwin
805a319014
Rename registers to break output dependencies in addition to anti-dependencies.
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llvm-svn: 87015
2009-11-12 19:08:21 +00:00
David Goodwin
538f9c25f8
Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies.
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llvm-svn: 86628
2009-11-10 00:15:47 +00:00
David Goodwin
8a18560a67
Fix bug in aggressive antidep breaking; liveness was not updated correctly for regions that do not have antidep candidates.
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llvm-svn: 86172
2009-11-05 21:06:09 +00:00
David Goodwin
66b5886123
Replace std::map.at() with std::map[].
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llvm-svn: 86102
2009-11-05 01:45:50 +00:00
David Goodwin
5ddf009b51
Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies.
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llvm-svn: 86098
2009-11-05 01:19:35 +00:00
David Goodwin
629a685f05
Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed.
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llvm-svn: 85939
2009-11-03 20:57:50 +00:00
David Goodwin
9a91b1fe3d
Between scheduling regions, correctly maintain anti-dep breaking state so that we don't incorrectly rename registers that span these regions.
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llvm-svn: 85537
2009-10-29 23:30:59 +00:00
David Goodwin
ad8a169be4
Fix a couple of bugs in aggressive anti-dep breaking.
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llvm-svn: 85522
2009-10-29 19:17:04 +00:00
David Goodwin
0b5b62bfcf
Allow the aggressive anti-dep breaker to process the same region multiple times. This is necessary because new anti-dependencies are exposed when "current" ones are broken.
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llvm-svn: 85166
2009-10-26 22:31:16 +00:00
David Goodwin
62dc7a4d93
Add aggressive anti-dependence breaker. Currently it is not the default for any target. Enable with -break-anti-dependencies=all.
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llvm-svn: 85145
2009-10-26 19:32:42 +00:00
