Jakob Stoklund Olesen
fa796dd720
Teach antidependency breakers to use RegisterClassInfo.
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No functional change was intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133202 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16 21:56:21 +00:00
Devang Patel
e29e8e100e
Update DBG_VALUEs while breaking anti dependencies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132487 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02 21:26:52 +00:00
Mikhail Glushenkov
35edc42f98
Typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125232 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09 22:55:48 +00:00
Andrew Trick
bc4bd92d52
Fix PostRA antidependence breaker.
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Avoid using the same register for two def operands or and earlyclobber
def and use operand. This fixes PR8986 and improves on the prior fix
for rdar://problem/8959122.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125089 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-08 17:39:46 +00:00
Andrew Trick
4638852696
Fixes <rdar://problem/8612856>: During postRAsched, the antidependence
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breaker needs to check all definitions of the antidepenent register to
avoid multiple defs of the same new register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118032 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-02 18:16:45 +00:00
Bill Wendling
9c2a034730
Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister. This time
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make sure to allocate enough space in the std::vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108449 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 19:58:14 +00:00
Chris Lattner
7fa889b946
revert bill's patches in an attempt to fix the buildbot.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108419 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 06:51:46 +00:00
Bill Wendling
f7f72bc1ea
Use std::vector instead of a hard-coded array. The length of that array could
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get *very* large, but we only need it to be the size of thenumber of pregs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108411 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 05:56:32 +00:00
Evan Cheng
46df4eb46e
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.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106091 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16 07:35:02 +00:00
Dan Gohman
66db3a0f10
Make BreakAntiDependencies' SUnits argument const, and make the Begin
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and End arguments by-value rather than by-reference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101830 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19 23:11:58 +00:00
Jim Grosbach
80c2b0d9ef
Anti-dependency breaking needs to be careful regarding instructions with
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multiple register definitions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92864 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-06 22:21:25 +00:00
Jim Grosbach
2973b57093
80 column and whitespace cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92837 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-06 16:48:02 +00:00
David Goodwin
557bbe6b5d
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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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89471 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 19:32:48 +00:00
David Goodwin
4de099d8ca
Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85939 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 20:57:50 +00:00
David Goodwin
82c7248518
Make AntiDepReg.h internal.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85412 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 18:29:54 +00:00
David Goodwin
e10deca33e
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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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85166 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:31:16 +00:00
David Goodwin
2e7be612d5
Break anti-dependence breaking out into its own class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85127 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 16:59:04 +00:00
