Commit Graph

123 Commits

Author SHA1 Message Date
Evan Cheng ad4d57a2f5 Determine whether a spill kills the register it's spilling before insertion rather than trying to undo the kill marker afterwards.
llvm-svn: 46953
2008-02-11 08:30:52 +00:00
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