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
e4a4147c87
Reserve a goodly amount of room for the vectors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108448 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 19:41:20 +00:00
38306d53f9
Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108440 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 18:43:09 +00:00
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
75a5b71208
Fix headers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108413 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 06:05:18 +00:00
e010409cab
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 the number of pregs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108412 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 06:04:38 +00:00
7e1b566322
Convert the last use of getPhysicalRegisterRegClass and remove it.
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AggressiveAntiDepBreaker should not be using getPhysicalRegisterRegClass. An
instruction might be using a register that can only be replaced with one from
a subclass of getPhysicalRegisterRegClass.
With this patch we use getMinimalPhysRegClass. This is correct, but
conservative. We should check the uses of the register and select the
largest register class that can be used in all of them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108122 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 02:55:34 +00:00
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
086723d244
Not all entries in the range will have an SUnit. Check for that when looking
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for debug information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105324 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 15:29:36 +00:00
533934e06e
Update debug information when breaking anti-dependencies. rdar://7759363
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105300 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 23:48:44 +00:00
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
347fa3fa26
Tidy whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100904 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09 21:38:26 +00:00
518bb53485
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09 19:54:29 +00:00
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
5393b25234
Change errs() to dbgs().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92093 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24 00:14:25 +00:00
990d285765
<rdar://problem/7453528>. Track only physical registers that are valid for the target.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90970 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-09 17:18:22 +00:00
2601329106
<rdar://problem/6721894>. Allow multiple registers to be renamed together (super and sub) if necessary to break an anti-dependence.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89722 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-24 00:59:08 +00:00
00621efb40
Restructure code to allow renaming of multiple-register groups for anti-dep breaking.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89511 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 23:33:54 +00:00
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
3e72d301e0
Fix a couple of problems with maintaining liveness information for antidep breaking.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89404 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 23:12:37 +00:00
87d21b92fc
Allow target to specify regclass for which antideps will only be broken along the critical path.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 19:52:48 +00:00
12dd99dc30
Rename registers to break output dependencies in addition to anti-dependencies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87015 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 19:08:21 +00:00
0855dee564
Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86628 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 00:15:47 +00:00
7040d6e2f5
Fix bug in aggressive antidep breaking; liveness was not updated correctly for regions that do not have antidep candidates.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86172 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 21:06:09 +00:00
98f2f1aff8
Replace std::map.at() with std::map[].
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86102 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 01:45:50 +00:00
54097836f3
Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 01:19:35 +00:00
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
5b3c308970
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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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-29 23:30:59 +00:00
67a8a7b3bd
Fix a couple of bugs in aggressive anti-dep breaking.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85522 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-29 19:17:04 +00:00
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
348777110a
Add aggressive anti-dependence breaker. Currently it is not the default for any target. Enable with -break-anti-dependencies=all.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85145 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 19:32:42 +00:00
