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Commit Graph

77 Commits

Author SHA1 Message Date
Chris Lattner
82e85c8c5f Fix bug: Jello/2003-08-23-RegisterAllocatePhysReg.ll
llvm-svn: 8095
2003-08-23 23:49:42 +00:00
Chris Lattner
972c03e264 Fix bug: Jello/2003-08-15-AllocaAssertion.ll
llvm-svn: 7916
2003-08-17 18:01:15 +00:00
Brian Gaeke
797d0f0aeb Fix typo in comment
llvm-svn: 7906
2003-08-15 21:19:25 +00:00
Brian Gaeke
77c65be59e Factory methods for FunctionPasses now return type FunctionPass *.
llvm-svn: 7823
2003-08-13 18:18:15 +00:00
Chris Lattner
297f7d2451 Fix bugs handling ESP in alloca references
llvm-svn: 7591
2003-08-05 04:13:58 +00:00
Chris Lattner
6fece1bf61 Revert previous change, and be really anal about what physical registers can do.
llvm-svn: 7588
2003-08-05 00:49:09 +00:00
Chris Lattner
0e8197ad06 Don't bother calculating info unless its needed. May reduce number of stack slots created.
llvm-svn: 7584
2003-08-04 23:42:37 +00:00
Chris Lattner
8934560bd3 * Fix spelling of 'necessary'
* Add a lot more DEBUG output, which is better structured than before
* Fix bug: Jello/2003-08-04-PhysRegLiveFailure.llx

llvm-svn: 7583
2003-08-04 23:36:39 +00:00
Chris Lattner
77691b2c54 Set debug types
llvm-svn: 7533
2003-08-03 21:47:31 +00:00
Chris Lattner
a18bb98cf5 Wrap at 80 columns
llvm-svn: 7503
2003-08-03 13:49:03 +00:00
Chris Lattner
1baa706ab7 Move DEBUG to Debug.h
llvm-svn: 7497
2003-08-01 22:21:34 +00:00
Vikram S. Adve
681b3c77fa (1) Added special register class containing (for now) %fsr.
Fixed spilling of %fcc[0-3] which are part of %fsr.

(2) Moved some machine-independent reg-class code to class TargetRegInfo
    from SparcReg{Class,}Info.

(3) Renamed MachienOperand::opIsDef to MachineOperand::opIsDefOnly()
    and related functions and flags.  Fixed several bugs where only
    "isDef" was being checked, not "isDefAndUse".

llvm-svn: 6341
2003-05-27 00:05:23 +00:00
Chris Lattner
738ee6f0fd Fix tab infestation!
llvm-svn: 6109
2003-05-12 03:54:14 +00:00
Misha Brukman
cf277f9143 Debug output should go to cerr, not cout, because that's where bytecode goes.
llvm-svn: 6002
2003-05-04 22:51:30 +00:00
Chris Lattner
3228091a65 Fix problems with empty basic blocks
llvm-svn: 5326
2003-01-16 18:06:43 +00:00
Chris Lattner
b27d60ccf1 Rename MachineInstrInfo -> TargetInstrInfo
llvm-svn: 5272
2003-01-14 22:00:31 +00:00
Chris Lattner
eb2bc51e49 * Convert to use LiveVariable analysis
* Convert to use PHIElimination pass
* Don't spill values which have just been reloaded (big win reducing spills)
* Add experimental support for eliminating spills before TwoAddress
  instructions.  It currently is broken so it is #ifdef'd out.
* Use new "is terminator" flag on instructions instead of looking for
  branches and returns explicitly.

llvm-svn: 5219
2003-01-13 00:25:40 +00:00
Chris Lattner
500e45fe72 Rename FunctionFrameInfo to MachineFrameInfo
llvm-svn: 5200
2002-12-28 21:08:26 +00:00
Chris Lattner
239563061c * Convert to be a MachineFunctionPass instance
* Use new FunctionFrameInfo object to manage stack slots instead of doing
  it directly
* Adjust to new MRegisterInfo API
* Don't take a TM as a ctor argument
* Don't keep track of which callee saved registers are modified
* Don't emit prolog/epilog code or spill/restore code for callee saved regs
* Use new allocation_order_begin/end iterators to simplify dramatically the
  logic for picking registers to allocate
* Machine PHI nodes can no longer contain constant arguments

llvm-svn: 5195
2002-12-28 20:40:43 +00:00
Chris Lattner
3a506e6f14 Adjust to simpler spill interface
Only spill and reload caller saved registers that are actually modified.

llvm-svn: 5145
2002-12-25 05:05:46 +00:00
Chris Lattner
7888f74224 Substantial fixes to live range handling, fixing several problems, getting
strtol to not miscompile, and fixing bug: 2002-12-23-LocalRAProblem.llx

llvm-svn: 5132
2002-12-24 00:04:55 +00:00
Chris Lattner
5ddc4b5f94 * Fix several register aliasing bugs
* Add a new option to eliminate spilling of registers that are only used
  within a basic block.

llvm-svn: 5106
2002-12-18 08:14:26 +00:00
Chris Lattner
c6ac5c70c6 Use new reginfo interface
llvm-svn: 5099
2002-12-17 04:19:40 +00:00
Chris Lattner
e66a7e80c3 Add prolog/epilog spills/reloads to counters
Move X86 specific alignment gunk to X86 files

llvm-svn: 5096
2002-12-17 03:16:10 +00:00
Chris Lattner
8dd15fd26c Fix many bugs, regallocator now saves callee-save registers instead of target
llvm-svn: 5093
2002-12-17 02:50:10 +00:00
Chris Lattner
cdcde16ad0 * Fix a gross X86 hack that was intended to avoid allocating SP and BP
* Implement register alias set support

llvm-svn: 5082
2002-12-16 17:44:42 +00:00
Chris Lattner
d44868a709 Initial checkin of "local" register allocator. Bugs are still present.
llvm-svn: 5078
2002-12-16 16:15:28 +00:00