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.
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llvm-svn: 46813
2008-02-06 08:00:32 +00:00
Owen Anderson
1078560f26
Reg alloc doesn't really need LiveVariables.
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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
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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
Evan Cheng
a637a9c2f5
Replace std::vector<bool> with BitVector.
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llvm-svn: 46104
2008-01-17 00:35:26 +00:00
Chris Lattner
f83aae613c
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
Owen Anderson
2e866e9cdf
Update CodeGen for MRegisterInfo --> TargetInstrInfo changes.
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llvm-svn: 45673
2008-01-07 01:35:56 +00:00
Owen Anderson
e6856128ab
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
Chris Lattner
96167aa93c
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
Chris Lattner
ad9a6ccb83
Remove attribution from file headers, per discussion on llvmdev.
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llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Evan Cheng
8464a0bf00
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
Evan Cheng
58b387dfb0
Remove redundant foldMemoryOperand variants and other code clean up.
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llvm-svn: 44517
2007-12-02 08:30:39 +00:00
Evan Cheng
fdd01c99f2
Add missing paratheses.
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llvm-svn: 43227
2007-10-22 19:42:28 +00:00
Evan Cheng
5c0f03bce4
Correctly handle implcit def / use operands.
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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
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certain linkers...
llvm-svn: 36944
2007-05-08 19:02:46 +00:00
Devang Patel
cd45427a87
Drop 'const'
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llvm-svn: 36662
2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162
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
Devang Patel
38a66bc82e
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
Evan Cheng
7f44e880dc
Match MachineFunction::UsedPhysRegs changes.
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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.
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llvm-svn: 34302
2007-02-15 05:59:24 +00:00
Chris Lattner
a24a3aaa94
rename DenseMap to IndexedMap.
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llvm-svn: 33749
2007-02-01 05:32:05 +00:00
Chris Lattner
a975b95adb
Eliminate static ctors from Statistics
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llvm-svn: 32698
2006-12-19 22:41:21 +00:00
Bill Wendling
23b8b13c9d
Removing even more <iostream> includes.
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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
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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.
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llvm-svn: 31806
2006-11-17 02:09:07 +00:00
Evan Cheng
3ba3e10448
Match live variable changes.
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llvm-svn: 31762
2006-11-15 20:55:15 +00:00
Evan Cheng
013597778d
Add implicit def / use operands to MachineInstr.
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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
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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
Chris Lattner
d269774664
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
Chris Lattner
a531dd1879
This fixes Benchmarks/Prolangs-C/unix-smail
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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
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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
Evan Cheng
82fabe541b
Only call isUse/isDef on register operands
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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.
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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
Chris Lattner
2a9da0da7b
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
Chris Lattner
33bd5dcfb7
s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
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llvm-svn: 29911
2006-08-27 12:54:02 +00:00
Jim Laskey
6d121090d3
Final polish on machine pass registries.
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llvm-svn: 29471
2006-08-02 12:30:23 +00:00
Jim Laskey
b92b14f422
Introducing plugable register allocators and instruction schedulers.
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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.
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llvm-svn: 29250
2006-07-21 21:15:20 +00:00
Andrew Lenharth
bf871a2ad5
80 cols
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llvm-svn: 29221
2006-07-20 17:43:27 +00:00
Andrew Lenharth
c1074954fb
Reduce number of exported symbols
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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
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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
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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
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llvm-svn: 28102
2006-05-04 17:52:23 +00:00
Chris Lattner
aafc339b4e
Add explicit #includes of <iostream>
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llvm-svn: 25515
2006-01-22 23:41:00 +00:00
Chris Lattner
82596272da
Nuke noop copies.
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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
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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
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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
7e3441972b
adjust to new live variables interface
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llvm-svn: 22992
2005-08-23 23:42:17 +00:00
Misha Brukman
774e55c446
Remove trailing whitespace
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llvm-svn: 21420
2005-04-21 22:36:52 +00:00
Chris Lattner
cc22be2981
Update this pass to set PhysRegsUsed info in MachineFunction.
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llvm-svn: 19792
2005-01-23 22:51:56 +00:00
Chris Lattner
a361504a90
Clean up the MachineBasicBlock.h file, percolating #includes into this file.
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Patch contributed by Morten Ofstad
llvm-svn: 17251
2004-10-26 15:35:58 +00:00