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123 Commits

Author SHA1 Message Date
Evan Cheng
19f684ed72 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
cabaec582f Rename MRegisterInfo to TargetRegisterInfo. 
llvm-svn: 46930
 2008-02-10 18:45:23 +00:00
Evan Cheng
0c6aedd740 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
2091d9a2e8 Fix a number of local register allocator issues: PR1609. 
llvm-svn: 46821
 2008-02-06 19:16:53 +00:00
Evan Cheng
34815d69b2 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
1078560f26 Reg alloc doesn't really need LiveVariables. 
llvm-svn: 46420
 2008-01-27 22:00:00 +00:00
Evan Cheng
8633da0707 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
a637a9c2f5 Replace std::vector<bool> with BitVector. 
llvm-svn: 46104
 2008-01-17 00:35:26 +00:00
Chris Lattner
f83aae613c 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
2e866e9cdf Update CodeGen for MRegisterInfo --> TargetInstrInfo changes. 
llvm-svn: 45673
 2008-01-07 01:35:56 +00:00
Owen Anderson
e6856128ab Move some more instruction creation methods from RegisterInfo into InstrInfo. 
llvm-svn: 45484
 2008-01-01 21:11:32 +00:00
Chris Lattner
96167aa93c 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
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Evan Cheng
8464a0bf00 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
58b387dfb0 Remove redundant foldMemoryOperand variants and other code clean up. 
llvm-svn: 44517
 2007-12-02 08:30:39 +00:00
Evan Cheng
fdd01c99f2 Add missing paratheses. 
llvm-svn: 43227
 2007-10-22 19:42:28 +00:00
Evan Cheng
5c0f03bce4 Correctly handle implcit def / use operands. 
llvm-svn: 37740
 2007-06-26 21:05:13 +00:00
Bill Wendling
a5f8cb0805 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
cd45427a87 Drop 'const' 
llvm-svn: 36662
 2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162 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
38a66bc82e Do not use typeinfo to identify pass in pass manager. 
llvm-svn: 36632
 2007-05-01 21:15:47 +00:00
Evan Cheng
7f44e880dc Match MachineFunction::UsedPhysRegs changes. 
llvm-svn: 36452
 2007-04-25 22:13:27 +00:00
Evan Cheng
28eaad250f Use BitVector instead of vector<bool> which can be extremely slow. 
llvm-svn: 34302
 2007-02-15 05:59:24 +00:00
Chris Lattner
a24a3aaa94 rename DenseMap to IndexedMap. 
llvm-svn: 33749
 2007-02-01 05:32:05 +00:00
Chris Lattner
a975b95adb Eliminate static ctors from Statistics 
llvm-svn: 32698
 2006-12-19 22:41:21 +00:00
Bill Wendling
23b8b13c9d Removing even more <iostream> includes. 
llvm-svn: 32320
 2006-12-07 20:04:42 +00:00
Chris Lattner
a531ce882e 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
dbea653b5d More removal of std::cerr and DEBUG, replacing with DOUT instead. 
llvm-svn: 31806
 2006-11-17 02:09:07 +00:00
Evan Cheng
3ba3e10448 Match live variable changes. 
llvm-svn: 31762
 2006-11-15 20:55:15 +00:00
Evan Cheng
013597778d Add implicit def / use operands to MachineInstr. 
llvm-svn: 31633
 2006-11-10 08:43:01 +00:00
Chris Lattner
66029d909b 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
d269774664 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
a531dd1879 This fixes Benchmarks/Prolangs-C/unix-smail 
llvm-svn: 30198
 2006-09-08 19:11:11 +00:00
Chris Lattner
16e4937a31 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
82fabe541b Only call isUse/isDef on register operands 
llvm-svn: 30122
 2006-09-05 20:32:06 +00:00
Chris Lattner
ff7657a869 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
2a9da0da7b 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
33bd5dcfb7 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h| 
llvm-svn: 29911
 2006-08-27 12:54:02 +00:00
Jim Laskey
6d121090d3 Final polish on machine pass registries. 
llvm-svn: 29471
 2006-08-02 12:30:23 +00:00
Jim Laskey
b92b14f422 Introducing plugable register allocators and instruction schedulers. 
llvm-svn: 29434
 2006-08-01 14:21:23 +00:00
Jim Laskey
085a8477a7 Eliminate data relocations by using NULL instead of global empty list. 
llvm-svn: 29250
 2006-07-21 21:15:20 +00:00
Andrew Lenharth
bf871a2ad5 80 cols 
llvm-svn: 29221
 2006-07-20 17:43:27 +00:00
Andrew Lenharth
c1074954fb Reduce number of exported symbols 
llvm-svn: 29220
 2006-07-20 17:28:38 +00:00
Chris Lattner
496bd3fbf6 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
48823987ff 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
685568510a Move some methods out of MachineInstr into MachineOperand 
llvm-svn: 28102
 2006-05-04 17:52:23 +00:00
Chris Lattner
aafc339b4e Add explicit #includes of <iostream> 
llvm-svn: 25515
 2006-01-22 23:41:00 +00:00
Chris Lattner
82596272da Nuke noop copies. 
llvm-svn: 24258
 2005-11-09 18:22:42 +00:00
Chris Lattner
90e4c8a2a7 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
a9cd99bbc1 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