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122 Commits

Author SHA1 Message Date
Dan Gohman
3a4be0fdef Rename MRegisterInfo to TargetRegisterInfo. 
llvm-svn: 46930
 2008-02-10 18:45:23 +00:00
Evan Cheng
6a80462568 Remove remnant of load folding in local register allocator. Patch by Holger Schurig. 
llvm-svn: 46861
 2008-02-07 19:46:55 +00:00
Evan Cheng
1ec748c784 Fix a number of local register allocator issues: PR1609. 
llvm-svn: 46821
 2008-02-06 19:16:53 +00:00
Evan Cheng
8291ab4449 RegAllocaLocal still *requires* LiveVariables since it runs PHIElimination, followed by TwoAddress which requires LiveVariables. We cannot run LiveVariables on non-SSA code. 
llvm-svn: 46813
 2008-02-06 08:00:32 +00:00
Owen Anderson
9a8c890c02 Reg alloc doesn't really need LiveVariables. 
llvm-svn: 46420
 2008-01-27 22:00:00 +00:00
Evan Cheng
54c20b559e When a live virtual register is being clobbered by an implicit def, it is spilled 
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
Evan Cheng
dc5b4c57d7 Replace std::vector<bool> with BitVector. 
llvm-svn: 46104
 2008-01-17 00:35:26 +00:00
Chris Lattner
03ad885039 rename TargetInstrDescriptor -> TargetInstrDesc. 
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
Owen Anderson
0ec92e9d64 Update CodeGen for MRegisterInfo --> TargetInstrInfo changes. 
llvm-svn: 45673
 2008-01-07 01:35:56 +00:00
Owen Anderson
eee14601b1 Move some more instruction creation methods from RegisterInfo into InstrInfo. 
llvm-svn: 45484
 2008-01-01 21:11:32 +00:00
Chris Lattner
a10fff51d9 Rename SSARegMap -> MachineRegisterInfo in keeping with the idea 
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
Chris Lattner
f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Evan Cheng
bb26301864 Add a argument to storeRegToStackSlot and storeRegToAddr to specify whether 
the stored register is killed.

llvm-svn: 44600
 2007-12-05 03:14:33 +00:00
Evan Cheng
f45a1d623c Remove redundant foldMemoryOperand variants and other code clean up. 
llvm-svn: 44517
 2007-12-02 08:30:39 +00:00
Evan Cheng
5163a8f53e Add missing paratheses. 
llvm-svn: 43227
 2007-10-22 19:42:28 +00:00
Evan Cheng
4bf87f1f44 Correctly handle implcit def / use operands. 
llvm-svn: 37740
 2007-06-26 21:05:13 +00:00
Bill Wendling
31fd60ba0c Change names from RA to something unique to get rid of naming conflicts with 
certain linkers...

llvm-svn: 36944
 2007-05-08 19:02:46 +00:00
Devang Patel
8c78a0bff0 Drop 'const' 
llvm-svn: 36662
 2007-05-03 01:11:54 +00:00
Devang Patel
e95c6ad802 Use 'static const char' instead of 'static const int'. 
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
Devang Patel
09f162ca6a Do not use typeinfo to identify pass in pass manager. 
llvm-svn: 36632
 2007-05-01 21:15:47 +00:00
Evan Cheng
0ba174534c Match MachineFunction::UsedPhysRegs changes. 
llvm-svn: 36452
 2007-04-25 22:13:27 +00:00
Evan Cheng
14edd1989b Use BitVector instead of vector<bool> which can be extremely slow. 
llvm-svn: 34302
 2007-02-15 05:59:24 +00:00
Chris Lattner
1003dc72b4 rename DenseMap to IndexedMap. 
llvm-svn: 33749
 2007-02-01 05:32:05 +00:00
Chris Lattner
aee775a6b7 Eliminate static ctors from Statistics 
llvm-svn: 32698
 2006-12-19 22:41:21 +00:00
Bill Wendling
22e978a736 Removing even more <iostream> includes. 
llvm-svn: 32320
 2006-12-07 20:04:42 +00:00
Chris Lattner
700b873130 Detemplatize the Statistic class. The only type it is instantiated with 
is 'unsigned'.

llvm-svn: 32279
 2006-12-06 17:46:33 +00:00
Bill Wendling
9d46fcd59c More removal of std::cerr and DEBUG, replacing with DOUT instead. 
llvm-svn: 31806
 2006-11-17 02:09:07 +00:00
Evan Cheng
0ffff1c629 Match live variable changes. 
llvm-svn: 31762
 2006-11-15 20:55:15 +00:00
Evan Cheng
8c9c6d71ed Add implicit def / use operands to MachineInstr. 
llvm-svn: 31633
 2006-11-10 08:43:01 +00:00
Chris Lattner
698000b0da Fix UnitTests/2005-05-12-Int64ToFP.c with llc-beta. In particular, do not 
allow it to go into an infinite loop, filling up the disk!

llvm-svn: 30494
 2006-09-19 18:02:01 +00:00
Chris Lattner
b2e7316b2d Non-allocatable physregs can be killed and dead, but don't treat them as 
safe for later allocation.  This fixes McCat/18-imp with llc-beta.

llvm-svn: 30204
 2006-09-08 20:21:31 +00:00
Chris Lattner
050c64c51d This fixes Benchmarks/Prolangs-C/unix-smail 
llvm-svn: 30198
 2006-09-08 19:11:11 +00:00
Chris Lattner
9b1a6ebf20 Fix a bunch of llc-beta failures on x86 yesterday. Don't allow selection 
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
Evan Cheng
ddfb10b5af Only call isUse/isDef on register operands 
llvm-svn: 30122
 2006-09-05 20:32:06 +00:00
Chris Lattner
7cc20d418b Fix Regression/CodeGen/Generic/2006-09-02-LocalAllocCrash.ll on X86. 
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
Chris Lattner
bd79458b0e When deleting a machine instruction, make sure to remove it from the 
livevariables information.  This fixes several regalloc=local failures on x86

llvm-svn: 30062
 2006-09-03 00:06:08 +00:00
Chris Lattner
3d27be1333 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h| 
llvm-svn: 29911
 2006-08-27 12:54:02 +00:00
Jim Laskey
29e635d3c9 Final polish on machine pass registries. 
llvm-svn: 29471
 2006-08-02 12:30:23 +00:00
Jim Laskey
95eda5b1f3 Introducing plugable register allocators and instruction schedulers. 
llvm-svn: 29434
 2006-08-01 14:21:23 +00:00
Jim Laskey
4b49c23571 Eliminate data relocations by using NULL instead of global empty list. 
llvm-svn: 29250
 2006-07-21 21:15:20 +00:00
Andrew Lenharth
ec104a2b41 80 cols 
llvm-svn: 29221
 2006-07-20 17:43:27 +00:00
Andrew Lenharth
c496b418b5 Reduce number of exported symbols 
llvm-svn: 29220
 2006-07-20 17:28:38 +00:00
Chris Lattner
996795b0dd Use hidden visibility to make symbols in an anonymous namespace get 
dropped.  This shrinks libllvmgcc.dylib another 67K

llvm-svn: 28975
 2006-06-28 23:17:24 +00:00
Chris Lattner
4ff6c1646f Teach the local allocator to know that live-in values (e.g. arguments) are 
live at function entry.  This prevents it from using arg registers for other
purposes before the arguments are used.

llvm-svn: 28809
 2006-06-15 22:21:53 +00:00
Chris Lattner
10d6341618 Move some methods out of MachineInstr into MachineOperand 
llvm-svn: 28102
 2006-05-04 17:52:23 +00:00
Chris Lattner
de02d7727f Add explicit #includes of <iostream> 
llvm-svn: 25515
 2006-01-22 23:41:00 +00:00
Chris Lattner
619dfaa42b Nuke noop copies. 
llvm-svn: 24258
 2005-11-09 18:22:42 +00:00
Chris Lattner
35ecaa76fa Disable some overly-aggressive checking code. This speeds up the local 
allocator from 23s to 11s on kc++ in debug mode.

llvm-svn: 24255
 2005-11-09 05:28:45 +00:00
Chris Lattner
5a6199f387 Change this code ot pass register classes into the stack slot spiller/reloader 
code.  PrologEpilogInserter hasn't been updated yet though, so targets cannot
use this info.

llvm-svn: 23536
 2005-09-30 01:29:00 +00:00
Chris Lattner
469652752c adjust to new live variables interface 
llvm-svn: 22992
 2005-08-23 23:42:17 +00:00