David Goodwin
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b98c542d94
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Fix a couple of problems with maintaining liveness information for antidep breaking.
llvm-svn: 89404
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2009-11-19 23:12:37 +00:00 |
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David Goodwin
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e1d06f2239
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Allow target to specify regclass for which antideps will only be broken along the critical path.
llvm-svn: 88682
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2009-11-13 19:52:48 +00:00 |
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David Goodwin
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538f9c25f8
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Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies.
llvm-svn: 86628
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2009-11-10 00:15:47 +00:00 |
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David Goodwin
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5ddf009b51
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Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies.
llvm-svn: 86098
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2009-11-05 01:19:35 +00:00 |
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David Goodwin
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629a685f05
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Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed.
llvm-svn: 85939
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2009-11-03 20:57:50 +00:00 |
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David Goodwin
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ad8a169be4
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Fix a couple of bugs in aggressive anti-dep breaking.
llvm-svn: 85522
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2009-10-29 19:17:04 +00:00 |
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David Goodwin
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ae4f8e01b0
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Make AntiDepReg.h internal.
llvm-svn: 85412
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2009-10-28 18:29:54 +00:00 |
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David Goodwin
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0b5b62bfcf
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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
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2009-10-26 22:31:16 +00:00 |
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David Goodwin
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62dc7a4d93
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Add aggressive anti-dependence breaker. Currently it is not the default for any target. Enable with -break-anti-dependencies=all.
llvm-svn: 85145
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2009-10-26 19:32:42 +00:00 |
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