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Commit Graph

746 Commits

Author SHA1 Message Date
Chris Lattner
5dca2ea4bc Simplify code, eliminating the need for the X86 isVoid target instr flag
llvm-svn: 7534
2003-08-03 21:51:45 +00:00
Chris Lattner
77691b2c54 Set debug types
llvm-svn: 7533
2003-08-03 21:47:31 +00:00
Chris Lattner
eba995d624 Remove using decl
llvm-svn: 7531
2003-08-03 20:24:29 +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
1414fba288 All constant-evaluation code now unified into
TargetInstrInfo::ConvertConstantToIntType().

llvm-svn: 7390
2003-07-29 19:50:12 +00:00
Vikram S. Adve
b58f52ab45 1. Bug fix: Don't use branch operand reg. as temp. reg. when
spilling values used by an instruction in the delay slot of the branch
   (which will eventually be moved before the branch).
2. Bug fix:  Delete the delay slot instr, not the branch instr, when
   moving delay slot instr. out!!!!
3. Move code to insert caller-saves moved here from SparcRegInfo:
   it is now machine-independent.

llvm-svn: 7389
2003-07-29 19:49:21 +00:00
Vikram S. Adve
42005e62b0 Add const version of getLiveRangeForValue().
llvm-svn: 7386
2003-07-29 19:38:22 +00:00
Vikram S. Adve
52859278d1 Code to insert caller-saves moved here from SparcRegInfo: it is now
machine-independent.
Fix problem with using branch operand reg. as temp. reg. when
spilling values used by an instruction in the delay slot of the branch
(which will eventually be moved before the branch).

llvm-svn: 7385
2003-07-29 19:37:41 +00:00
Chris Lattner
92dfc1ed32 Making this code const-correct would be a pain, so I'll hack it.
llvm-svn: 7350
2003-07-26 23:29:51 +00:00
Chris Lattner
2d6049baaf Const correctness fixes
llvm-svn: 7349
2003-07-26 23:24:56 +00:00
Chris Lattner
e39696972d Be const correct
llvm-svn: 7348
2003-07-26 23:23:41 +00:00
Chris Lattner
792286a084 Hrm, another necesary one :(
llvm-svn: 7347
2003-07-26 23:22:19 +00:00
Chris Lattner
ecc0501a97 Remove #include
llvm-svn: 7342
2003-07-26 23:01:04 +00:00
Chris Lattner
9224631d6b Remove extraneous #includes
llvm-svn: 7341
2003-07-26 23:00:29 +00:00
Vikram S. Adve
57eb4ab6bc (1) Change the way unused regs. are marked and found to consider regType
info (since multiple reg types may share the same reg class).
(2) Remove machine-specific regalloc. methods that are no longer needed.
    In particular, arguments and return value from a call do not need
    machine-specific code for allocation.
(3) Rename TargetRegInfo::getRegType variants to avoid unintentional
    overloading when an include file is omitted.

llvm-svn: 7329
2003-07-25 21:06:09 +00:00
Vikram S. Adve
714fee31fd Remove unused field. Change the way unused regs. are marked and
found to consider regType info (since multiple reg types may share
the same reg class, e.g., single and double on Sparc).

llvm-svn: 7327
2003-07-25 21:00:13 +00:00
Chris Lattner
9c569f48a0 Remove unnecessary casts
llvm-svn: 7250
2003-07-23 15:17:51 +00:00
Chris Lattner
c1049acba1 Random cleanups
llvm-svn: 7247
2003-07-23 14:59:40 +00:00
Chris Lattner
67138b2c59 Remove using decl
llvm-svn: 7246
2003-07-23 14:55:59 +00:00
Vikram S. Adve
d8b600cb85 Values stored in CallArgsDescriptor cannot be const.
llvm-svn: 7156
2003-07-10 19:46:15 +00:00
Vikram S. Adve
b1496585b6 isMarkedForSpill() should be const.
llvm-svn: 7155
2003-07-10 19:45:28 +00:00
Vikram S. Adve
6aa3abf7fa Change interface to MachineInstr::substituteValue to specify more precisely
which args can be substituted: defsOnly, defsAndUses or usesOnly.

llvm-svn: 7154
2003-07-10 19:45:07 +00:00
Vikram S. Adve
0b23c58179 Print out all neighbors in interference graph, not just higher-numbered ones.
llvm-svn: 7153
2003-07-10 19:43:33 +00:00
Vikram S. Adve
00f3778923 Several fixes to handling of int CC register:
(1) An int CC live range must be spilled if there are any interferences,
    even if no other "neighbour" in the interf. graph has been allocated
    that reg. yet.  This is actually true of any class with only one reg!

(2) SparcIntCCRegClass::colorIGNode sets the color even if the LR must
    be spilled so that the machine-independent spill code doesn't have to
    make the machine-dependent decision of which CC name to use based on
    operand type: %xcc or %icc.  (These are two halves of the same
register.)

(3) LR->isMarkedForSpill() is no longer the same as LR->hasColor().
    These should never have been the same, and this is necessary now for #2.

(4) All RDCCR and WRCCR instructions are directly generated with the
    phony number for %ccr so that EmitAssembly/EmitBinary doesn't have to
    deal with this.

llvm-svn: 7152
2003-07-10 19:42:55 +00:00
Vikram S. Adve
d7b18ee501 Choose register instead of immediate for ConstantExpr in ChooseRegOrImmed.
llvm-svn: 7112
2003-07-06 20:33:21 +00:00
Vikram S. Adve
293af7edb6 Minor beautification: fold a couple of lines of code.
llvm-svn: 7054
2003-07-02 01:24:00 +00:00
Vikram S. Adve
daa346c89a A def. operand of a machine instruction may be an ordinary Value*,
not just an Instruction*, at least in one unfortunate case:
the first operand to the va_arg instruction.
Modify ValueToDefVecMap to map from Value*, not Instruction*.

llvm-svn: 7052
2003-07-02 01:16:01 +00:00
John Criswell
258dfc0319 Merged in autoconf branch. This provides configuration via the autoconf
system.

llvm-svn: 7014
2003-06-30 21:59:07 +00:00
Chris Lattner
6c12776232 Remove a ton of extraneous #includes
llvm-svn: 6842
2003-06-22 03:08:05 +00:00
Chris Lattner
493103ea3b Actually, change it to use explicit new/delete, which is more likely to be
optimized INTO an alloca

llvm-svn: 6727
2003-06-16 22:29:09 +00:00
Chris Lattner
c32989e03a Remove two using decls
Remove usage of alloca

llvm-svn: 6725
2003-06-16 22:18:28 +00:00
Brian Gaeke
4681b27a92 Isolate machine-dependent use of <alloca.h> in "Support/Alloca.h",
so that we can easily change its use to be conditional on the result of
an autoconf test later.

llvm-svn: 6723
2003-06-16 21:54:01 +00:00
John Criswell
4781723de6 Included assert.h so that the code compiles under newer versions of GCC.
llvm-svn: 6682
2003-06-11 14:01:36 +00:00
Guochun Shi
77b04a417a add some comments
add a function ModuloScheduling::dumpFinalSchedule() to print out final schedule

llvm-svn: 6677
2003-06-10 20:04:30 +00:00
Guochun Shi
36a4257c48 add an brief instruction what this pass is
llvm-svn: 6676
2003-06-10 20:03:39 +00:00
Guochun Shi
385c1556a9 a simple introduction to this pass
llvm-svn: 6675
2003-06-10 20:02:16 +00:00
Guochun Shi
8783d79b8b cleaned code
add some comments

llvm-svn: 6674
2003-06-10 19:09:00 +00:00
Guochun Shi
7868d0f43e delete useless functions
add comment

llvm-svn: 6673
2003-06-08 23:16:07 +00:00
Guochun Shi
24ac61d239 change DEBUG to DEBUG_PRINT
llvm-svn: 6672
2003-06-08 20:40:47 +00:00
Misha Brukman
ba5c703619 Do not hastily change the Opcode from 'r' to 'i' type if we're not actually
SETTING the operand to be an immediate or have verified that one of the operands
is really a SignExtended or Unextended immediate value already, which warrants
an 'i' opcode.

llvm-svn: 6662
2003-06-07 02:34:43 +00:00
Chris Lattner
060e5e326b Fix bug: Jello/2003-06-04-bzip2-bug.ll
llvm-svn: 6624
2003-06-05 17:15:04 +00:00
Misha Brukman
b126ea43eb I have finally seen the light. The code to change the opcode must live higher in
the loop, and in both cases. In the first case, it is a VReg that is a constant
so it may be actually converted to a constant. In the second case, it is already
a constant, but then if it doesn't change its type (e.g. to become a register
and have the value loaded from memory if it is too large to live in its
instruction field), we must change the opcode BEFORE the 'continue', otherwise
we miss the opportunity.

llvm-svn: 6602
2003-06-04 04:54:06 +00:00
Misha Brukman
a69a008010 Pass through the emitConstantPool() call to the real emitter.
llvm-svn: 6590
2003-06-03 20:00:49 +00:00
Misha Brukman
7a5eac8485 Moved code to modify the opcode from 'reg' to 'imm' form to a more logical place.
llvm-svn: 6563
2003-06-03 03:18:20 +00:00
Misha Brukman
8871478c0c Moved FInfo.cpp to lib/Target/Sparc as it is Sparc-specific.
llvm-svn: 6554
2003-06-02 23:27:09 +00:00
Chris Lattner
abad1ceca0 Minor cleanups.
This pass should be moved to lib/Target/Sparc since it's sparc specific
It also needs a file comment.

llvm-svn: 6553
2003-06-02 22:57:41 +00:00
Chris Lattner
46e24d4492 Remove usage of noncopyable classes to clean up doxygen output.
In particular these classes are the last that link the noncopyable classes
with the hash_map, vector, and list classes.

llvm-svn: 6552
2003-06-02 22:45:07 +00:00
Chris Lattner
322afbda9d Add #include
llvm-svn: 6550
2003-06-02 22:05:13 +00:00
Misha Brukman
e837bd5b48 Removed a useless ofstream.
llvm-svn: 6547
2003-06-02 20:49:09 +00:00
Guochun Shi
c41e21ef9e compiled with the new SchedGraphCommon
llvm-svn: 6545
2003-06-02 17:48:56 +00:00
Misha Brukman
1407922069 Remove spurious assert()
llvm-svn: 6529
2003-06-02 04:10:41 +00:00
Chris Lattner
3422940bc8 Changes to be compatible with MachineCodeEmitter.h
llvm-svn: 6515
2003-06-01 23:22:11 +00:00
Vikram S. Adve
540655e2ae Minor changes.
llvm-svn: 6470
2003-05-31 07:41:54 +00:00
Vikram S. Adve
d43c10b583 Added MachineCodeForInstruction object as an argument to
TmpInstruction constructors because every TmpInstruction object has
to be registered with a MachineCodeForInstruction to prevent leaks.
This simplifies the user's code.

llvm-svn: 6469
2003-05-31 07:41:24 +00:00
Vikram S. Adve
b2bb0dd8ca Allow explicit physical registers for implicit operands.
llvm-svn: 6468
2003-05-31 07:39:06 +00:00
Vikram S. Adve
2d906f4550 Changes to allow explicit physical register arguments that have been
preallocated.  While reg-to-reg dependences were already handled, this
change required new code for adding edges to/from call instructions.
This was part of the extensive changes to the way code generation occurs
for function call arguments and return values.
See log for CodeGen/PhyRegAlloc.cpp.

llvm-svn: 6467
2003-05-31 07:37:05 +00:00
Vikram S. Adve
194a5862e0 Extensive changes to the way code generation occurs for function
call arguments and return values:
Now all copy operations before and after a call are generated during
selection instead of during register allocation.
The values are copied to virtual registers (or to the stack), but
in the former case these operands are marked with the correct physical
registers according to the calling convention.
Although this complicates scheduling and does not work well with
live range analysis, it simplifies the machine-dependent part of
register allocation.

llvm-svn: 6465
2003-05-31 07:32:01 +00:00
Misha Brukman
b1b8a6732e When converting virtual registers to immediate constants, change the opcode.
llvm-svn: 6452
2003-05-30 20:36:27 +00:00
Misha Brukman
c5a1e94883 Added saveBBreferences() for BasicBlock resolution.
llvm-svn: 6451
2003-05-30 20:32:45 +00:00
Guochun Shi
21f3083978 so far everything compiles
llvm-svn: 6423
2003-05-30 00:17:09 +00:00
Misha Brukman
51eb037b1e Correctly write out binary data as chars, before they're cast to ints.
llvm-svn: 6385
2003-05-28 18:27:19 +00:00
Misha Brukman
4960b8db94 Added a debugging code emitter that prints code to a file, debug to std::cerr,
and passes the real code to a memory-outputting code emitter. This may be
removed at a later point in development.

llvm-svn: 6379
2003-05-27 22:43:19 +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
Misha Brukman
daf2cc3c48 Cleaned up code layout. No functional changes.
llvm-svn: 6304
2003-05-22 21:49:18 +00:00
Misha Brukman
7d91017b21 Kill `using' directives.
llvm-svn: 6301
2003-05-22 21:24:35 +00:00
Chris Lattner
a4fe60d3c1 Use a kill, not a dead definition, update comment
llvm-svn: 6131
2003-05-12 17:37:30 +00:00
Chris Lattner
e78921f048 * Keep LiveVariable information more up-to-date and consistent
* *** Finally mark values that are inputs to PHIs as killed when appropriate.
   This should make the generated code quite a bit better.  For example, the
   local-ra will not have to spill PHI inputs at the end of predecessor BB's
   anymore.

llvm-svn: 6117
2003-05-12 14:28:28 +00:00
Chris Lattner
ce4b5cd9bf Fix bug where we could iterate off the end of a basic block
llvm-svn: 6116
2003-05-12 14:26:38 +00:00
Chris Lattner
a8497e3094 * Keep the BBMap around as long as the pass is live
* Change getVarInfo to take real virtual register numbers and offset them
  itself.  This has caused me so much grief, it's not even funny.

llvm-svn: 6115
2003-05-12 14:24:00 +00:00
Chris Lattner
3ab77b0589 Fix N^2 algorithm
llvm-svn: 6112
2003-05-12 04:08:54 +00:00
Chris Lattner
30e6616afa * Fix several comments
* Update LiveVar info better, fixing bug: Jello/2003-05-11-PHIRegAllocBug.ll

llvm-svn: 6110
2003-05-12 03:55:21 +00:00
Chris Lattner
738ee6f0fd Fix tab infestation!
llvm-svn: 6109
2003-05-12 03:54:14 +00:00
Chris Lattner
3160b1235e Allow const functions
llvm-svn: 6056
2003-05-09 03:27:41 +00:00
Chris Lattner
a24e816c31 Add methods for stub function generation
llvm-svn: 6054
2003-05-08 21:54:18 +00:00
Chris Lattner
d3d53723a2 Add a vector to keep track of which registers are allocatable. Remove FIXMEs
llvm-svn: 6015
2003-05-07 20:08:36 +00:00
Chris Lattner
15d2a1b0b9 Re-add gross hack, it's still necessary. :(
llvm-svn: 6012
2003-05-06 21:44:54 +00:00
Chris Lattner
bfeffcec97 Remove hideously nasty hack
llvm-svn: 6011
2003-05-06 21:32:39 +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
8f2c71cae2 Fix a bug which occurred with empty basic blocks
llvm-svn: 5982
2003-05-02 18:44:42 +00:00
Chris Lattner
00a12b165a Minor cleanup
llvm-svn: 5976
2003-05-01 21:18:47 +00:00
Chris Lattner
3e687b8b65 Remove unneccesary &*
llvm-svn: 5871
2003-04-23 16:36:11 +00:00
Misha Brukman
1d82003535 Just some code beautification changes I had sitting around in my tree.
llvm-svn: 5859
2003-04-22 23:00:08 +00:00
Misha Brukman
127a46eeba Fixed compilation errors, command-line argument declarations, cleaned up code to
look nicer and removed useless stuff.

Also renamed a few variables, moved them into namespaces, converted outputting
to a file into a print to std::cerr with a DEBUG() guard, as all passes should
do anyway.

No functional changes have been made. However, this code now compiles.

llvm-svn: 5769
2003-04-10 19:19:23 +00:00
Misha Brukman
1db4cefc28 Made the code readable:
* Lines must be wrapped at 80 chars. This is a hard limit.
* Consistent style on functions, braces, if, for, etc. Code must be readable.

No functional changes have been made, even though I added a new typedef.

llvm-svn: 5768
2003-04-09 21:51:34 +00:00
Guochun Shi
478533bb86 change the include file names and some class names to make it compile
llvm-svn: 5764
2003-04-06 23:56:19 +00:00
Guochun Shi
9ba51857c1 *** empty log message ***
llvm-svn: 5755
2003-03-27 17:57:44 +00:00
Chris Lattner
1d35ac61ce Print machine frame objects with the frame offset intrinsic to the machine
llvm-svn: 5329
2003-01-16 18:35:57 +00:00
Chris Lattner
3228091a65 Fix problems with empty basic blocks
llvm-svn: 5326
2003-01-16 18:06:43 +00:00
Chris Lattner
76fc0fcfa5 Arg, fix bugs in previous checkin...
llvm-svn: 5322
2003-01-16 02:24:20 +00:00
Chris Lattner
ba0f68ad4a Add assertion
llvm-svn: 5321
2003-01-16 02:22:08 +00:00
Chris Lattner
52c6c50212 * Insert prolog/epilog code before rewriting indexes
* Fix calculation of frame offsets when there is an offset.

llvm-svn: 5318
2003-01-15 22:52:34 +00:00
Chris Lattner
301e1307d2 Move sparc specific code into the Sparc backend
llvm-svn: 5317
2003-01-15 21:36:50 +00:00
Chris Lattner
4846297632 Adjust to new interfaces
llvm-svn: 5314
2003-01-15 21:14:01 +00:00
Chris Lattner
7f6d496ab0 Move headers around
llvm-svn: 5312
2003-01-15 21:02:16 +00:00
Chris Lattner
53a41beb57 Header is moved into local directory
llvm-svn: 5311
2003-01-15 21:00:02 +00:00
Chris Lattner
ec5237b2fe Fix bug in previous checkin
llvm-svn: 5310
2003-01-15 20:32:15 +00:00
Chris Lattner
405c4eb45e Add new method
llvm-svn: 5309
2003-01-15 20:28:36 +00:00
Chris Lattner
e5a3e82de5 #include RegClass.h explicitly
llvm-svn: 5307
2003-01-15 19:57:07 +00:00
Chris Lattner
c5e832b829 Remvoe dependency on RegClass.h
llvm-svn: 5306
2003-01-15 19:56:21 +00:00
Chris Lattner
760b144cf9 Prune #includes
llvm-svn: 5303
2003-01-15 19:48:13 +00:00
Chris Lattner
c934e3fa5f Minor changes
llvm-svn: 5302
2003-01-15 19:47:53 +00:00
Chris Lattner
cfa7a8f9a2 Remove obsolete ctor
llvm-svn: 5301
2003-01-15 19:47:02 +00:00
Chris Lattner
4c178a5732 Remove dead code
llvm-svn: 5298
2003-01-15 19:22:38 +00:00
Chris Lattner
c7ffc9b9e3 Use buildmi not MI ctor directly
llvm-svn: 5293
2003-01-15 18:08:07 +00:00
Chris Lattner
07b0e49989 Rename llvm/Analysis/LiveVar/FunctionLiveVarInfo.h -> llvm/CodeGen/FunctionLiveVarInfo.h
llvm-svn: 5284
2003-01-14 23:05:08 +00:00
Chris Lattner
57b5e8891e Move llvm/Analysis/LiveVar/ValueSet.h to CodeGen/ValueSet.h
llvm-svn: 5282
2003-01-14 22:56:37 +00:00
Chris Lattner
b27d60ccf1 Rename MachineInstrInfo -> TargetInstrInfo
llvm-svn: 5272
2003-01-14 22:00:31 +00:00
Chris Lattner
76e5849ba6 New files
llvm-svn: 5262
2003-01-13 20:01:16 +00:00
Chris Lattner
0e9b41cd57 * Use the PHI Elimination pass
llvm-svn: 5220
2003-01-13 00:26:08 +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
e9bef83e93 Convert to MachineFunctionPass
llvm-svn: 5218
2003-01-13 00:23:41 +00:00
Chris Lattner
acef9340fe Add support for 3 new forms of MachineOperand
llvm-svn: 5217
2003-01-13 00:23:24 +00:00
Chris Lattner
ed14156bf6 Add support for constant pool
Add helper methods for MachineFrameInfo

llvm-svn: 5216
2003-01-13 00:23:03 +00:00
Chris Lattner
93ba1b8b05 Add support for global address by string and constant pool values
llvm-svn: 5215
2003-01-13 00:22:37 +00:00
Chris Lattner
dfa3c21f1c More renamings of Target/Machine*Info to Target/Target*Info
llvm-svn: 5204
2002-12-29 03:13:05 +00:00
Chris Lattner
bff4411f3a Rename MachineOptInfo to TargetoptInfo
Rename MachineCacheInfo to TargetCacheInfo

llvm-svn: 5203
2002-12-29 02:50:35 +00:00
Chris Lattner
500e45fe72 Rename FunctionFrameInfo to MachineFrameInfo
llvm-svn: 5200
2002-12-28 21:08:26 +00:00
Chris Lattner
2407294a41 Rename MachineFrameInfo to TargetFrameInfo.h
llvm-svn: 5199
2002-12-28 21:00:25 +00:00
Chris Lattner
0ca1e472f2 Initial checkin of Prolog/Epilog code inserter, which is an important part
of the abstract frame representation

llvm-svn: 5198
2002-12-28 20:43:30 +00:00
Chris Lattner
c10678de64 * 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

* Use a bitvector to keep track of registers used instead of a set
* Fix problem where explicitly referenced registers would be added to
  regsused set and never removed

llvm-svn: 5196
2002-12-28 20:42:14 +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
831939c09a * Add printing support for FrameIndex operands
llvm-svn: 5194
2002-12-28 20:37:37 +00:00
Chris Lattner
64b1ad63c1 * A bunch of functionality and data was removed from MachineFunction and put
into a new MachineFunctionInfo class
* Implement new FunctionFrameInfo class

llvm-svn: 5193
2002-12-28 20:37:16 +00:00
Chris Lattner
6ce5c54520 Frame info moved out of MachineFunction into a seperate object
llvm-svn: 5192
2002-12-28 20:35:34 +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
1f19acbda7 Adjustments to work with the simpler spill interface
llvm-svn: 5144
2002-12-25 05:04:20 +00:00
Chris Lattner
10edd6367e Remove dependency on SSARegMap.h by MachineFunction.h
llvm-svn: 5143
2002-12-25 05:03:22 +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
7abe5199b3 Fix compilation on GCC 2.96
llvm-svn: 5113
2002-12-23 23:44:04 +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
bb2e7ec2b1 Implicit defs/uses list may be empty.
llvm-svn: 5103
2002-12-18 01:11:14 +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
0ede83ee56 Keep the stack frame aligned.
llvm-svn: 5081
2002-12-16 17:42:40 +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
Chris Lattner
064dd4ef95 Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator.
Remvoe some dead code

llvm-svn: 5070
2002-12-16 14:37:00 +00:00
Chris Lattner
93b0272717 Some simpliciations to the spill/reload interface
llvm-svn: 5067
2002-12-15 23:01:26 +00:00
Chris Lattner
6a2d7bef14 Simplify PHI node elimination significantly by doing it as a prepass to
register allocation

llvm-svn: 5066
2002-12-15 22:39:53 +00:00
Chris Lattner
ebb82f7f96 Variety of small or trivial simplifications to the code, completely eliminated
the dependence on PhysRegClassMap

llvm-svn: 5064
2002-12-15 22:19:19 +00:00
Chris Lattner
370918a2db Remove unused savePhysRegToStack method
llvm-svn: 5061
2002-12-15 21:33:51 +00:00
Chris Lattner
35ceaa7322 Localize a map, remove another
llvm-svn: 5060
2002-12-15 21:24:30 +00:00
Chris Lattner
f499e065be Give simple reg allocator a nice Pass Name
llvm-svn: 5058
2002-12-15 21:13:12 +00:00
Chris Lattner
da3e75b117 Add a big assert making sure 2 address instructions are formed right
llvm-svn: 5057
2002-12-15 21:02:20 +00:00
Chris Lattner
e8acf72d80 Fix a problem that occurs when PHI nodes have multiple entries for the same predecessor
llvm-svn: 5055
2002-12-15 20:48:03 +00:00
Chris Lattner
234abaea18 Grab bag of minor cleanups. Export some statistics about the number of
spills and reloads emitted

llvm-svn: 5054
2002-12-15 20:36:09 +00:00
Chris Lattner
dd307412c4 Implement printing of MBB arguments
llvm-svn: 5053
2002-12-15 20:35:25 +00:00
Chris Lattner
4214ac384a Simplify interfaces used by regalloc to insert code
llvm-svn: 5052
2002-12-15 20:06:35 +00:00