45d4475fe5
Make the local register allocator compute (purely local) liveness information for itself
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rather than depending on LiveVariables. This decreases compile time from:
0.5909s (LV + Regalloc) to 0.421s (just regalloc).
llvm-svn: 53256
2008-07-08 22:24:50 +00:00
427412e7c8
Teach local register allocator to deal with landing pad MBB's.
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llvm-svn: 51647
2008-05-28 17:22:32 +00:00
d78c400b5b
Clean up the use of static and anonymous namespaces. This turned up
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several things that were neither in an anonymous namespace nor static
but not intended to be global.
llvm-svn: 51017
2008-05-13 00:00:25 +00:00
be3d44c3cb
Remove #include<map> from LiveVariables.h. Not referenced.
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llvm-svn: 49099
2008-04-02 17:23:50 +00:00
6325446666
Refactor code. Remove duplicated functions that basically do the same thing as
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findRegisterUseOperandIdx, findRegisterDefOperandIndx. Fix some naming inconsistencies.
llvm-svn: 47927
2008-03-05 00:59:57 +00:00
811153a551
If we reload a virtual register that's already been assigned, we want to mark
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that instruction as its "last use". This fixes PR1925.
llvm-svn: 47758
2008-02-29 18:52:01 +00:00
d7a258d325
Rename PrintableName to Name.
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llvm-svn: 47629
2008-02-26 21:47:57 +00:00
c24ea4fb41
Change "Name" to "AsmName" in the target register info. Gee, a refactoring tool
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would have been a Godsend here!
llvm-svn: 47625
2008-02-26 21:11:01 +00:00
52c15b3e6d
Really really bad local register allocator bug. On X86, it was never using ESI, EDI, and EBP because of a bug in RALocal::isPhysRegAvailable(). For example, when
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it checks if ESI is available, it then looks at registers aliases to ESI. SIL is marked -2 (not allocatable) but isPhysRegAvailable() incorrectly assumes it is in use and returns false for ESI.
llvm-svn: 47499
2008-02-22 20:30:53 +00:00
a1977d32f0
Add debugging printfs.
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llvm-svn: 47496
2008-02-22 19:57:06 +00:00
18991d78fa
Fix newly-introduced 4.3 warnings
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llvm-svn: 47375
2008-02-20 12:07:57 +00:00
ad4d57a2f5
Determine whether a spill kills the register it's spilling before insertion rather than trying to undo the kill marker afterwards.
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llvm-svn: 46953
2008-02-11 08:30:52 +00:00
3a4be0fdef
Rename MRegisterInfo to TargetRegisterInfo.
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llvm-svn: 46930
2008-02-10 18:45:23 +00:00
6a80462568
Remove remnant of load folding in local register allocator. Patch by Holger Schurig.
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llvm-svn: 46861
2008-02-07 19:46:55 +00:00
1ec748c784
Fix a number of local register allocator issues: PR1609.
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llvm-svn: 46821
2008-02-06 19:16:53 +00:00
8291ab4449
RegAllocaLocal still *requires* LiveVariables since it runs PHIElimination, followed by TwoAddress which requires LiveVariables. We cannot run LiveVariables on non-SSA code.
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llvm-svn: 46813
2008-02-06 08:00:32 +00:00
9a8c890c02
Reg alloc doesn't really need LiveVariables.
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llvm-svn: 46420
2008-01-27 22:00:00 +00:00
54c20b559e
When a live virtual register is being clobbered by an implicit def, it is spilled
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and the spill is its kill. However, if the local allocator has determined the
register has not been modified (possible when its value was reloaded), it would
not issue a restore. In that case, mark the last use of the virtual register as
kill.
llvm-svn: 46111
2008-01-17 02:08:17 +00:00
dc5b4c57d7
Replace std::vector<bool> with BitVector.
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llvm-svn: 46104
2008-01-17 00:35:26 +00:00
03ad885039
rename TargetInstrDescriptor -> TargetInstrDesc.
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Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.
llvm-svn: 45695
2008-01-07 07:27:27 +00:00
0ec92e9d64
Update CodeGen for MRegisterInfo --> TargetInstrInfo changes.
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llvm-svn: 45673
2008-01-07 01:35:56 +00:00
eee14601b1
Move some more instruction creation methods from RegisterInfo into InstrInfo.
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llvm-svn: 45484
2008-01-01 21:11:32 +00:00
a10fff51d9
Rename SSARegMap -> MachineRegisterInfo in keeping with the idea
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that "machine" classes are used to represent the current state of
the code being compiled. Given this expanded name, we can start
moving other stuff into it. For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.
Update all the clients to match.
This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.
llvm-svn: 45467
2007-12-31 04:13:23 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
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llvm-svn: 45418
2007-12-29 20:36:04 +00:00
bb26301864
Add a argument to storeRegToStackSlot and storeRegToAddr to specify whether
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the stored register is killed.
llvm-svn: 44600
2007-12-05 03:14:33 +00:00
f45a1d623c
Remove redundant foldMemoryOperand variants and other code clean up.
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llvm-svn: 44517
2007-12-02 08:30:39 +00:00
5163a8f53e
Add missing paratheses.
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llvm-svn: 43227
2007-10-22 19:42:28 +00:00
4bf87f1f44
Correctly handle implcit def / use operands.
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llvm-svn: 37740
2007-06-26 21:05:13 +00:00
31fd60ba0c
Change names from RA to something unique to get rid of naming conflicts with
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certain linkers...
llvm-svn: 36944
2007-05-08 19:02:46 +00:00
8c78a0bff0
Drop 'const'
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llvm-svn: 36662
2007-05-03 01:11:54 +00:00
e95c6ad802
Use 'static const char' instead of 'static const int'.
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Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.
llvm-svn: 36652
2007-05-02 21:39:20 +00:00
09f162ca6a
Do not use typeinfo to identify pass in pass manager.
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llvm-svn: 36632
2007-05-01 21:15:47 +00:00
0ba174534c
Match MachineFunction::UsedPhysRegs changes.
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llvm-svn: 36452
2007-04-25 22:13:27 +00:00
14edd1989b
Use BitVector instead of vector<bool> which can be extremely slow.
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llvm-svn: 34302
2007-02-15 05:59:24 +00:00
1003dc72b4
rename DenseMap to IndexedMap.
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llvm-svn: 33749
2007-02-01 05:32:05 +00:00
aee775a6b7
Eliminate static ctors from Statistics
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llvm-svn: 32698
2006-12-19 22:41:21 +00:00
22e978a736
Removing even more <iostream> includes.
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llvm-svn: 32320
2006-12-07 20:04:42 +00:00
700b873130
Detemplatize the Statistic class. The only type it is instantiated with
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is 'unsigned'.
llvm-svn: 32279
2006-12-06 17:46:33 +00:00
9d46fcd59c
More removal of std::cerr and DEBUG, replacing with DOUT instead.
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llvm-svn: 31806
2006-11-17 02:09:07 +00:00
0ffff1c629
Match live variable changes.
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llvm-svn: 31762
2006-11-15 20:55:15 +00:00
8c9c6d71ed
Add implicit def / use operands to MachineInstr.
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llvm-svn: 31633
2006-11-10 08:43:01 +00:00
698000b0da
Fix UnitTests/2005-05-12-Int64ToFP.c with llc-beta. In particular, do not
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allow it to go into an infinite loop, filling up the disk!
llvm-svn: 30494
2006-09-19 18:02:01 +00:00
b2e7316b2d
Non-allocatable physregs can be killed and dead, but don't treat them as
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safe for later allocation. This fixes McCat/18-imp with llc-beta.
llvm-svn: 30204
2006-09-08 20:21:31 +00:00
050c64c51d
This fixes Benchmarks/Prolangs-C/unix-smail
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llvm-svn: 30198
2006-09-08 19:11:11 +00:00
9b1a6ebf20
Fix a bunch of llc-beta failures on x86 yesterday. Don't allow selection
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of unallocatable registers, just because an alias is allocatable. We were
picking registers like SIL just because ESI was being used.
llvm-svn: 30197
2006-09-08 19:03:30 +00:00
ddfb10b5af
Only call isUse/isDef on register operands
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llvm-svn: 30122
2006-09-05 20:32:06 +00:00
7cc20d418b
Fix Regression/CodeGen/Generic/2006-09-02-LocalAllocCrash.ll on X86.
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Just because an alias of a register is available, it doesn't mean that we
can arbitrarily evict the register.
llvm-svn: 30064
2006-09-03 07:15:37 +00:00
bd79458b0e
When deleting a machine instruction, make sure to remove it from the
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livevariables information. This fixes several regalloc=local failures on x86
llvm-svn: 30062
2006-09-03 00:06:08 +00:00
3d27be1333
s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
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llvm-svn: 29911
2006-08-27 12:54:02 +00:00
29e635d3c9
Final polish on machine pass registries.
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llvm-svn: 29471
2006-08-02 12:30:23 +00:00
Owen Anderson