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42 Commits

Author SHA1 Message Date
Vikram S. Adve 45766ab682 (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 a83804a29a 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
Vikram S. Adve 7366fa1aa6 (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 1ff57d914c Adjust to new interfaces 
llvm-svn: 5314
 2003-01-15 21:14:01 +00:00
Chris Lattner a23969b669 #include RegClass.h explicitly 
llvm-svn: 5307
 2003-01-15 19:57:07 +00:00
Chris Lattner b4d58d7f9e Rename MachineInstrInfo -> TargetInstrInfo 
llvm-svn: 5272
 2003-01-14 22:00:31 +00:00
Chris Lattner 6d6d87f3f3 Inline typedef, eliminate unused method 
llvm-svn: 4382
 2002-10-29 17:03:19 +00:00
Chris Lattner 5abe44bb72 Add #includes that were eliminated from headers 
llvm-svn: 4380
 2002-10-29 16:51:05 +00:00
Chris Lattner c9bd2c38a8 Eliminate usage of MachineBasicBlock::get 
llvm-svn: 4344
 2002-10-28 19:22:04 +00:00
Chris Lattner 6a30b02b1d Rename the redundant MachineOperand::getOperandType() to MachineOperand::getType() 
llvm-svn: 4331
 2002-10-28 04:45:29 +00:00
Chris Lattner 9668c8c8db Add #includes now that MachineInstr.h doesn't include llvm/Target/MachineInstrInfo.h 
llvm-svn: 4327
 2002-10-28 02:28:39 +00:00
Chris Lattner 2a3bd1c562 *** empty log message *** 
llvm-svn: 4323
 2002-10-28 02:01:37 +00:00
Chris Lattner 6fc3ca062d *** empty log message *** 
llvm-svn: 4317
 2002-10-28 01:41:27 +00:00
Vikram S. Adve ed2df3ecf8 Live ranges for Return value and return address of a Call are now 
created here, simply by handling all implicit operands (which should
have been done anyway).

llvm-svn: 3969
 2002-09-28 17:05:22 +00:00
Vikram S. Adve e008b2d62e Allow copy coalescing in more cases: if sum of node degrees is more than 
than #available regs, compute the sum excluding duplicates and if that
is less than #regs, go ahead and coalesce.
Add method IGNode::getCombinedDegree to count excluding duplicates.

llvm-svn: 3842
 2002-09-20 00:45:47 +00:00
Vikram S. Adve 0e56b36b53 Break RA_DEBUG option into several levels to get better control over 
debug output.

llvm-svn: 3724
 2002-09-14 23:05:33 +00:00
Vikram S. Adve 1dfb4079b7 MachineInstr* in vector are not const (and never really were) 
because operands may be modified directly to set register.
Also, class MachineCodeForBasicBlock is now an annotation on BasicBlock.

llvm-svn: 2832
 2002-07-08 23:07:26 +00:00
Chris Lattner 113f4f4609 MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2779
 2002-06-25 16:13:24 +00:00
Chris Lattner d5a847057b Eliminate duplicate or unneccesary #include's 
llvm-svn: 2397
 2002-04-29 17:42:12 +00:00
Chris Lattner 62b7fd136e Change references to the Method class to be references to the Function 
class.  The Method class is obsolete (renamed) and all references to it
are being converted over to Function.

llvm-svn: 2144
 2002-04-07 20:49:59 +00:00
Chris Lattner 60a6591d83 Method.h no longer includes BasicBlock.h 
Method::inst_* is now in llvm/Support/InstIterator.h
GraphTraits specializations for BasicBlock and Methods are now in llvm/Support/CFG.h

llvm-svn: 1746
 2002-02-12 21:07:25 +00:00
Chris Lattner ea13e0afa0 Convert operand iterator over to work like an STL iterator 
llvm-svn: 1720
 2002-02-05 06:02:59 +00:00
Chris Lattner d30f989cda * Code Cleanups 
* Removal dependencies on Type.h & remove uses of getTypeID()

llvm-svn: 1718
 2002-02-05 03:52:29 +00:00
Chris Lattner 101a5d9197 Must include SetOperations to do set_* 
llvm-svn: 1716
 2002-02-05 03:35:53 +00:00
Chris Lattner b0af9cdbda * Eliminate the LiveVarSet class, making applyTranferFuncForMInst a static 
function in the one .cpp file that uses it.  Use ValueSet's instead.
* Prepare to delete LiveVarSet.h & LiveVarSet.cpp
* Eliminate the ValueSet class, making all old member functions into global
  templates that will eventually be moved to Support.
* Eliminate some irrelevant const's

llvm-svn: 1712
 2002-02-05 02:52:05 +00:00
Chris Lattner 30e8fb69c5 * Code Cleanups 
* Introduce RAV to allow stream I/O instead of using printValue

llvm-svn: 1710
 2002-02-05 01:43:49 +00:00
Chris Lattner 83a8434eb2 * Add #includes removed from headers 
* ValueSet interface converted from add/remove to insert/erase
* Minor cleanups

llvm-svn: 1689
 2002-02-04 16:36:59 +00:00
Chris Lattner 49562d8442 Add #includes neccesary since they were removed from .h files 
llvm-svn: 1675
 2002-02-04 05:56:09 +00:00
Chris Lattner 7f74a56e24 Changes to build successfully with GCC 3.02 
llvm-svn: 1503
 2002-01-20 22:54:45 +00:00
Ruchira Sasanka 8c2d8256a9 Added destructors and comments. 
Added correct spill candidate selection logic.

llvm-svn: 1493
 2002-01-07 19:19:18 +00:00
Chris Lattner 2413b160ec Renamed inst_const_iterator -> const_inst_iterator 
Renamed op_const_iterator   -> const_op_iterator
Renamed PointerType::getValueType() -> PointerType::getElementType()

llvm-svn: 1408
 2001-12-04 00:03:30 +00:00
Ruchira Sasanka 31305c0d57 Coalesing bug fix - now checks for the same regType instead of the same 
regClass since FP class has two reg Types.

llvm-svn: 1236
 2001-11-10 00:20:24 +00:00
Ruchira Sasanka 09d7a2a496 Corrected call interference bug 
llvm-svn: 916
 2001-10-19 17:21:03 +00:00
Ruchira Sasanka 5b8971f418 Added support for caller saving 
llvm-svn: 847
 2001-10-16 01:23:19 +00:00
Chris Lattner f3f1e452ea Output to cerr rather than cout so that debug info doesn't mess up assembly generation 
llvm-svn: 840
 2001-10-15 18:15:27 +00:00
Ruchira Sasanka 2a6cc8300d updated suggesting/coloring of call & return args & implicit operands. 
Changed added instr to a deque (from a vector)

llvm-svn: 831
 2001-10-15 16:26:38 +00:00
Ruchira Sasanka 7c10e086eb --corrected coalescing test: coalsed only if two are of the same reg class 
llvm-svn: 729
 2001-10-12 17:48:18 +00:00
Ruchira Sasanka e3b9faddad --added suggesting colors; call/ret arg handling 
llvm-svn: 670
 2001-09-30 23:11:59 +00:00
Chris Lattner 1bec3bd0a4 * REMOVE extraneous debug info if DEBUG_RA is not set 
* Spell PhyRegAlloc right.

llvm-svn: 645
 2001-09-19 16:09:04 +00:00
Ruchira Sasanka 1f331f258b -- updated printing 
llvm-svn: 631
 2001-09-18 22:43:57 +00:00
Ruchira Sasanka 6fd9532e54 fixed printing messages 
llvm-svn: 590
 2001-09-15 19:06:58 +00:00
Ruchira Sasanka 808568eafc *** empty log message *** 
llvm-svn: 580
 2001-09-14 21:18:34 +00:00