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643 Commits

Author SHA1 Message Date
Vikram S. Adve
5cdb12f958 Minor changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6470 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-31 07:41:54 +00:00
Vikram S. Adve
f3d3ca18b5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6469 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-31 07:41:24 +00:00
Vikram S. Adve
3497782f38 Allow explicit physical registers for implicit operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6468 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-31 07:39:06 +00:00
Vikram S. Adve
7952d6088e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6467 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-31 07:37:05 +00:00
Vikram S. Adve
d0d06ad4f3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6465 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-31 07:32:01 +00:00
Misha Brukman
88ba25444c When converting virtual registers to immediate constants, change the opcode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6452 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-30 20:36:27 +00:00
Misha Brukman
da3a8b19ce Added saveBBreferences() for BasicBlock resolution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6451 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-30 20:32:45 +00:00
Guochun Shi
139f0c279d so far everything compiles 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6423 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-30 00:17:09 +00:00
Misha Brukman
eae77de869 Correctly write out binary data as chars, before they're cast to ints. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6385 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-28 18:27:19 +00:00
Misha Brukman
3432d1d1d5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6379 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-27 22:43:19 +00:00
Vikram S. Adve
5f2180c533 (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".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6341 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-27 00:05:23 +00:00
Misha Brukman
6b77ec4156 Cleaned up code layout. No functional changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6304 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-22 21:49:18 +00:00
Misha Brukman
c2312df45c Kill `using' directives. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6301 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-22 21:24:35 +00:00
Chris Lattner
b52e0241c0 Use a kill, not a dead definition, update comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6131 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-12 17:37:30 +00:00
Chris Lattner
572c770668 * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6117 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-12 14:28:28 +00:00
Chris Lattner
a13f0d3f41 Fix bug where we could iterate off the end of a basic block 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6116 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-12 14:26:38 +00:00
Chris Lattner
fb2cb69dc5 * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6115 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-12 14:24:00 +00:00
Chris Lattner
98719d7cdc Fix N^2 algorithm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6112 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-12 04:08:54 +00:00
Chris Lattner
927ce5dfae * Fix several comments 
* Update LiveVar info better, fixing bug: Jello/2003-05-11-PHIRegAllocBug.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6110 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-12 03:55:21 +00:00
Chris Lattner
d5725631c5 Fix tab infestation! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6109 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-12 03:54:14 +00:00
Chris Lattner
e0e72177c0 Allow const functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6056 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-09 03:27:41 +00:00
Chris Lattner
fd33fb8726 Add methods for stub function generation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6054 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-08 21:54:18 +00:00
Chris Lattner
5cdfbad72d Add a vector to keep track of which registers are allocatable. Remove FIXMEs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6015 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-07 20:08:36 +00:00
Chris Lattner
dff780f046 Re-add gross hack, it's still necessary. :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6012 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-06 21:44:54 +00:00
Chris Lattner
82a4d207aa Remove hideously nasty hack 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6011 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-06 21:32:39 +00:00
Misha Brukman
15b55e20cc Debug output should go to cerr, not cout, because that's where bytecode goes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6002 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-04 22:51:30 +00:00
Chris Lattner
b589bf7d77 Fix a bug which occurred with empty basic blocks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5982 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-02 18:44:42 +00:00
Chris Lattner
f98358efc7 Minor cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5976 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-01 21:18:47 +00:00
Chris Lattner
2ee82e05e3 Remove unneccesary &* 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5871 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-23 16:36:11 +00:00
Misha Brukman
63e04f3ccb Just some code beautification changes I had sitting around in my tree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5859 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-22 23:00:08 +00:00
Misha Brukman
2c821cc06e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5769 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-10 19:19:23 +00:00
Misha Brukman
8baa01c1d7 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5768 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-09 21:51:34 +00:00
Guochun Shi
6fbe5fbce1 change the include file names and some class names to make it compile 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5764 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-06 23:56:19 +00:00
Guochun Shi
f1c154f5e6 *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5755 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-27 17:57:44 +00:00
Chris Lattner
9085d8a9a9 Print machine frame objects with the frame offset intrinsic to the machine 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5329 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-16 18:35:57 +00:00
Chris Lattner
0416d2a70a Fix problems with empty basic blocks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5326 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-16 18:06:43 +00:00
Chris Lattner
f85249ca73 Arg, fix bugs in previous checkin... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5322 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-16 02:24:20 +00:00
Chris Lattner
78d6db5627 Add assertion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5321 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-16 02:22:08 +00:00
Chris Lattner
4ac7d7302b * Insert prolog/epilog code before rewriting indexes 
* Fix calculation of frame offsets when there is an offset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5318 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 22:52:34 +00:00
Chris Lattner
795ba6cabd Move sparc specific code into the Sparc backend 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5317 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 21:36:50 +00:00
Chris Lattner
9d4ed15c9e Adjust to new interfaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5314 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 21:14:01 +00:00
Chris Lattner
af3cdcf9b0 Move headers around 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5312 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 21:02:16 +00:00
Chris Lattner
4cfd622252 Header is moved into local directory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5311 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 21:00:02 +00:00
Chris Lattner
c7c7b7ab75 Fix bug in previous checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5310 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 20:32:15 +00:00
Chris Lattner
c520feb6f0 Add new method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5309 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 20:28:36 +00:00
Chris Lattner
4309e736c1 #include RegClass.h explicitly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5307 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 19:57:07 +00:00
Chris Lattner
abb9c08a05 Remvoe dependency on RegClass.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5306 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 19:56:21 +00:00
Chris Lattner
a9b19b9002 Prune #includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5303 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 19:48:13 +00:00
Chris Lattner
0412077faf Minor changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5302 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 19:47:53 +00:00
Chris Lattner
b66fdc2934 Remove obsolete ctor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5301 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 19:47:02 +00:00
Chris Lattner
1531b63421 Remove dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5298 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 19:22:38 +00:00
Chris Lattner
f6ee49fcf0 Use buildmi not MI ctor directly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5293 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 18:08:07 +00:00
Chris Lattner
92ba2aaa58 Rename llvm/Analysis/LiveVar/FunctionLiveVarInfo.h -> llvm/CodeGen/FunctionLiveVarInfo.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5284 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-14 23:05:08 +00:00
Chris Lattner
8143d8f91a Move llvm/Analysis/LiveVar/ValueSet.h to CodeGen/ValueSet.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5282 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-14 22:56:37 +00:00
Chris Lattner
3501feab81 Rename MachineInstrInfo -> TargetInstrInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5272 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-14 22:00:31 +00:00
Chris Lattner
bc40e898e1 New files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5262 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-13 20:01:16 +00:00
Chris Lattner
80a0478bbb * Use the PHI Elimination pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5220 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-13 00:26:08 +00:00
Chris Lattner
91a452b382 * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5219 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-13 00:25:40 +00:00
Chris Lattner
f00a3f905e Convert to MachineFunctionPass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5218 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-13 00:23:41 +00:00
Chris Lattner
8d95ef4973 Add support for 3 new forms of MachineOperand 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5217 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-13 00:23:24 +00:00
Chris Lattner
4d149cdae1 Add support for constant pool 
Add helper methods for MachineFrameInfo


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5216 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-13 00:23:03 +00:00
Chris Lattner
7775df1a6c Add support for global address by string and constant pool values 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5215 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-13 00:22:37 +00:00
Chris Lattner
d0f166a486 More renamings of Target/Machine*Info to Target/Target*Info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5204 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-29 03:13:05 +00:00
Chris Lattner
f27eeea54f Rename MachineOptInfo to TargetoptInfo 
Rename MachineCacheInfo to TargetCacheInfo


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5203 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-29 02:50:35 +00:00
Chris Lattner
eb24db9727 Rename FunctionFrameInfo to MachineFrameInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5200 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 21:08:26 +00:00
Chris Lattner
8bd66e6907 Rename MachineFrameInfo to TargetFrameInfo.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5199 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 21:00:25 +00:00
Chris Lattner
58b3328ac7 Initial checkin of Prolog/Epilog code inserter, which is an important part 
of the abstract frame representation


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5198 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 20:43:30 +00:00
Chris Lattner
600dee4aae * 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5196 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 20:42:14 +00:00
Chris Lattner
580f9be7ff * 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5195 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 20:40:43 +00:00
Chris Lattner
10cb79b484 * Add printing support for FrameIndex operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5194 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 20:37:37 +00:00
Chris Lattner
955fad1f99 * A bunch of functionality and data was removed from MachineFunction and put 
into a new MachineFunctionInfo class
* Implement new FunctionFrameInfo class


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5193 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 20:37:16 +00:00
Chris Lattner
e90fcb739a Frame info moved out of MachineFunction into a seperate object 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5192 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 20:35:34 +00:00
Chris Lattner
ff863ba610 Adjust to simpler spill interface 
Only spill and reload caller saved registers that are actually modified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5145 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-25 05:05:46 +00:00
Chris Lattner
5124aec32f Adjustments to work with the simpler spill interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5144 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-25 05:04:20 +00:00
Chris Lattner
831fdcf017 Remove dependency on SSARegMap.h by MachineFunction.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5143 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-25 05:03:22 +00:00
Chris Lattner
0eb172cc4a Substantial fixes to live range handling, fixing several problems, getting 
strtol to not miscompile, and fixing bug: 2002-12-23-LocalRAProblem.llx


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5132 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-24 00:04:55 +00:00
Chris Lattner
e500864619 Fix compilation on GCC 2.96 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5113 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-23 23:44:04 +00:00
Chris Lattner
82bee0f2c8 * Fix several register aliasing bugs 
* Add a new option to eliminate spilling of registers that are only used
  within a basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5106 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-18 08:14:26 +00:00
Chris Lattner
aed967cc9e Implicit defs/uses list may be empty. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5103 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-18 01:11:14 +00:00
Chris Lattner
e7d361d15a Use new reginfo interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5099 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-17 04:19:40 +00:00
Chris Lattner
86c69a6cbe Add prolog/epilog spills/reloads to counters 
Move X86 specific alignment gunk to X86 files


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5096 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-17 03:16:10 +00:00
Chris Lattner
ae64043737 Fix many bugs, regallocator now saves callee-save registers instead of target 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5093 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-17 02:50:10 +00:00
Chris Lattner
c21be922bf * Fix a gross X86 hack that was intended to avoid allocating SP and BP 
* Implement register alias set support


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5082 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-16 17:44:42 +00:00
Chris Lattner
69c198863d Keep the stack frame aligned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5081 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-16 17:42:40 +00:00
Chris Lattner
b74e83c898 Initial checkin of "local" register allocator. Bugs are still present. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5078 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-16 16:15:28 +00:00
Chris Lattner
1d62cea90b Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator. 
Remvoe some dead code


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5070 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-16 14:37:00 +00:00
Chris Lattner
b167c04e62 Some simpliciations to the spill/reload interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5067 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 23:01:26 +00:00
Chris Lattner
8ed9eb5ca3 Simplify PHI node elimination significantly by doing it as a prepass to 
register allocation


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5066 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 22:39:53 +00:00
Chris Lattner
9f366d7ab6 Variety of small or trivial simplifications to the code, completely eliminated 
the dependence on PhysRegClassMap


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5064 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 22:19:19 +00:00
Chris Lattner
f605055994 Remove unused savePhysRegToStack method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5061 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 21:33:51 +00:00
Chris Lattner
01b08c59b4 Localize a map, remove another 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5060 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 21:24:30 +00:00
Chris Lattner
8233e2fe01 Give simple reg allocator a nice Pass Name 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5058 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 21:13:12 +00:00
Chris Lattner
15f96db4d9 Add a big assert making sure 2 address instructions are formed right 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5057 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 21:02:20 +00:00
Chris Lattner
3f91ad7ba7 Fix a problem that occurs when PHI nodes have multiple entries for the same predecessor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5055 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 20:48:03 +00:00
Chris Lattner
da7e453aac Grab bag of minor cleanups. Export some statistics about the number of 
spills and reloads emitted


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5054 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 20:36:09 +00:00
Chris Lattner
2109f502d6 Implement printing of MBB arguments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5053 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 20:35:25 +00:00
Chris Lattner
198ab640bb Simplify interfaces used by regalloc to insert code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5052 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 20:06:35 +00:00
Chris Lattner
c2db1a95df * Simplify code a bit by breaking the PHI node handling stuff out into a seperate 
function from normal regalloc code
* Make the regalloc for a block a function instead of part of runOnMachineBB, which
  makes it easier to see what's going on in runOnMBB.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5051 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 19:51:14 +00:00
Chris Lattner
9593fb1503 * Remove some unneccesary instance variables 
* Make allocateStackSpaceFor only allocate the right amount of space


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5048 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 19:07:34 +00:00
Chris Lattner
dd444f9242 pull inverse reg class mapping into a class that is sharable and out of the 
target register description classes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5045 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 18:38:59 +00:00