David Goodwin
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557bbe6b5d
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89471 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-11-20 19:32:48 +00:00 |
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David Goodwin
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3e72d301e0
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Fix a couple of problems with maintaining liveness information for antidep breaking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89404 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-11-19 23:12:37 +00:00 |
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David Goodwin
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87d21b92fc
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Allow target to specify regclass for which antideps will only be broken along the critical path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88682 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-11-13 19:52:48 +00:00 |
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David Goodwin
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0855dee564
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Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86628 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-11-10 00:15:47 +00:00 |
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David Goodwin
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54097836f3
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Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86098 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-11-05 01:19:35 +00:00 |
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David Goodwin
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4de099d8ca
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Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85939 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-11-03 20:57:50 +00:00 |
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David Goodwin
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67a8a7b3bd
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Fix a couple of bugs in aggressive anti-dep breaking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85522 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-10-29 19:17:04 +00:00 |
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David Goodwin
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82c7248518
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Make AntiDepReg.h internal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85412 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-10-28 18:29:54 +00:00 |
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David Goodwin
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e10deca33e
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85166 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-10-26 22:31:16 +00:00 |
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David Goodwin
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348777110a
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Add aggressive anti-dependence breaker. Currently it is not the default for any target. Enable with -break-anti-dependencies=all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85145 91177308-0d34-0410-b5e6-96231b3b80d8
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2009-10-26 19:32:42 +00:00 |
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