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22 Commits

Author SHA1 Message Date
Evan Cheng 0d639a28aa Rename TargetSubtarget to TargetSubtargetInfo for consistency. 
llvm-svn: 134259
 2011-07-01 21:01:15 +00:00
Jakob Stoklund Olesen 4f5f84c7e7 Teach antidependency breakers to use RegisterClassInfo. 
No functional change was intended.

llvm-svn: 133202
 2011-06-16 21:56:21 +00:00
Devang Patel f02a376fbc Update DBG_VALUEs while breaking anti dependencies. 
llvm-svn: 132487
 2011-06-02 21:26:52 +00:00
Bill Wendling 030b0286ec Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister. 
llvm-svn: 108440
 2010-07-15 18:43:09 +00:00
Bill Wendling 57681404b0 Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister. 
llvm-svn: 108438
 2010-07-15 18:40:50 +00:00
Chris Lattner c48adb60ca revert bill's patches in an attempt to fix the buildbot. 
llvm-svn: 108419
 2010-07-15 06:51:46 +00:00
Bill Wendling 1f7071a3e4 Fix headers. 
llvm-svn: 108413
 2010-07-15 06:05:18 +00:00
Bill Wendling e7e6ca5c57 Use std::vector instead of a hard-coded array. The length of that array could 
get *very* large, but we only need it to be the size of the number of pregs.

llvm-svn: 108412
 2010-07-15 06:04:38 +00:00
Evan Cheng f128bdcb55 Make post-ra scheduling, anti-dep breaking, and register scavenger (conservatively) aware of predicated instructions. This enables ARM to move if-conversion before post-ra scheduler. 
llvm-svn: 106091
 2010-06-16 07:35:02 +00:00
Dan Gohman 35bc4d46cb Make BreakAntiDependencies' SUnits argument const, and make the Begin 
and End arguments by-value rather than by-reference.

llvm-svn: 101830
 2010-04-19 23:11:58 +00:00
Jim Grosbach eb431da074 80 column and whitespace cleanup 
llvm-svn: 92837
 2010-01-06 16:48:02 +00:00
David Goodwin a45fe67667 <rdar://problem/7453528>. Track only physical registers that are valid for the target. 
llvm-svn: 90970
 2009-12-09 17:18:22 +00:00
David Goodwin 80a03cc0b1 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. 
llvm-svn: 89471
 2009-11-20 19:32:48 +00:00
David Goodwin dd1c6198d4 Fix a couple of problems with maintaining liveness information for antidep breaking. 
llvm-svn: 89404
 2009-11-19 23:12:37 +00:00
David Goodwin b9fe5d5d02 Allow target to specify regclass for which antideps will only be broken along the critical path. 
llvm-svn: 88682
 2009-11-13 19:52:48 +00:00
David Goodwin cf89db135e Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies. 
llvm-svn: 86628
 2009-11-10 00:15:47 +00:00
David Goodwin 7d8878add2 Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies. 
llvm-svn: 86098
 2009-11-05 01:19:35 +00:00
David Goodwin 8501dbbe10 Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed. 
llvm-svn: 85939
 2009-11-03 20:57:50 +00:00
David Goodwin 9f1b2d4619 Fix a couple of bugs in aggressive anti-dep breaking. 
llvm-svn: 85522
 2009-10-29 19:17:04 +00:00
David Goodwin e30ed53c05 Make AntiDepReg.h internal. 
llvm-svn: 85412
 2009-10-28 18:29:54 +00:00
David Goodwin e056d1077e 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. 
llvm-svn: 85166
 2009-10-26 22:31:16 +00:00
David Goodwin de11f36ab7 Add aggressive anti-dependence breaker. Currently it is not the default for any target. Enable with -break-anti-dependencies=all. 
llvm-svn: 85145
 2009-10-26 19:32:42 +00:00