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681 Commits

Author SHA1 Message Date
Alkis Evlogimenos
5327801fb8 Use newly added API in MRegisterInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16060 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-26 22:22:38 +00:00
Chris Lattner
8bdf87d1d8 All targets are now allowed to have their own MachineFunctionInfo objects, 
also, make getInfo do some checking and cast to the appropriate concrete type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15903 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-18 18:13:16 +00:00
Chris Lattner
b6e678b1c8 Alkis pointed out that this is not a character (we actually support strings) 
and as such, we should use self revealing names.  Hey, makes sense to me!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15896 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-18 02:22:34 +00:00
Chris Lattner
30bad4af40 new method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15895 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 21:38:51 +00:00
Chris Lattner
bfddc2030a Add support for alignment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15888 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 19:14:29 +00:00
Misha Brukman
274ba03f49 Ultra-doxygenify some function header comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15884 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 17:52:36 +00:00
Chris Lattner
75585268a7 Allow targets to specify a comment character 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15879 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 16:26:36 +00:00
Chris Lattner
800ade1e19 Add missing \t 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15871 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 06:48:34 +00:00
Chris Lattner
46d6126e66 Add some hooks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15867 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 06:36:27 +00:00
Chris Lattner
af2bf0ab30 We now allow targets to use any prefix they want for global symbols. Lets 
hear it for ".".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15863 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 06:06:19 +00:00
Chris Lattner
f1cb795394 Some asmweriters want an _ prefix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15844 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 02:28:12 +00:00
Chris Lattner
a80ba71efe Initial implementation of the asmprinter base class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15838 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 23:15:22 +00:00
Chris Lattner
2fcd451a5e Fit into 80 lines, add a gross hack for MachineFunctionInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15832 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 22:35:26 +00:00
Chris Lattner
5a6074053d These files now live in lib/Target/SparcV9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15831 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 21:56:15 +00:00
Chris Lattner
913cbd65dc Remove helper method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15776 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 22:02:36 +00:00
Alkis Evlogimenos
706515727c Clean up whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15490 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 09:46:56 +00:00
Alkis Evlogimenos
1a8ea01f01 Convert indentation to 2 spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15489 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 09:46:26 +00:00
Brian Gaeke
826b19b4ec These headers have been moved/merged into other files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15477 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:37:56 +00:00
Chris Lattner
36c29dbbee New pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15367 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 09:59:14 +00:00
Chris Lattner
f24d879520 Expose some helpful methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15366 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 09:59:04 +00:00
Chris Lattner
dc4a4922d3 Add some machine CFG related stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15352 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 01:59:11 +00:00
Chris Lattner
d3a205eab5 Make a method const, no functionality changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15193 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 06:23:01 +00:00
Alkis Evlogimenos
3f86193cd2 Remove implementation of operator= and make it private so that it is 
not used accidentally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15172 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 18:55:15 +00:00
Alkis Evlogimenos
a1613db62f Change std::map<unsigned, LiveInterval*> into a std::map<unsigned, 
LiveInterval>. This saves some space and removes the pointer
indirection caused by following the pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15167 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 11:44:15 +00:00
Chris Lattner
4df98e546d Completely eliminate the intervals_ list. instead, the r2iMap_ maintains 
ownership of the intervals.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15155 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 03:32:06 +00:00
Chris Lattner
0f4c076140 Add a new differingRegisterClasses method 
make overlapsAliases take pointers instead of references
fix indentation


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15153 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 02:53:43 +00:00
Chris Lattner
abf295fc6c Little stuff: 
* Fix comment typeo
* add dump() methods
* add a few new methods like getLiveRangeContaining, removeRange & joinable
  (which is currently the same as overlaps)
* Remove the unused operator==

Bigger change:

* In LiveInterval, instead of using a boolean isDefinedOnce to keep track of
  if there are > 1 definitions in a particular interval, keep a counter,
  NumValues to keep track of exactly how many there are.
* In LiveRange, add a new ValId element to indicate which of the numbered
  values each LiveRange belongs to.   We now no longer merge LiveRanges if
  they are of differing value ID's even if they are neighbors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15152 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 02:52:23 +00:00
Chris Lattner
f35fef7060 More minor changes: 
* Inline some functions
 * Eliminate some comparisons from the release build

This is good for another .3 on gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15144 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 21:24:19 +00:00
Chris Lattner
b26c215c05 Change addRange and join to be a little bit smarter. In particular, we don't 
want to insert a new range into the middle of the vector, then delete ranges
one at a time next to the inserted one as they are merged.

Instead, if the inserted interval overlaps, just start merging.  The only time
we insert into the middle of the vector is when we don't overlap at all.  Also
delete blocks of live ranges if we overlap with many of them.

This patch speeds up joining by .7 seconds on a large testcase, but more
importantly gets all of the range adding code into addRangeFrom.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15141 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 19:38:44 +00:00
Chris Lattner
e6ad392802 New helper method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15138 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 18:39:12 +00:00
Chris Lattner
4dc54ae0d9 Speedup debug builds a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15137 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 18:38:52 +00:00
Chris Lattner
ebd7e6c54d Instead of searching for a live interval pair, search for a location. This gives 
a very modest speedup of .3 seconds compiling 176.gcc (out of 20s).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15136 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 18:13:24 +00:00
Chris Lattner
a3b8b5c0e0 Rename LiveIntervals.(cpp|h) -> LiveIntervalAnalysis.(cpp|h) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15135 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 17:56:30 +00:00
Chris Lattner
fb449b9ea5 Pull the LiveRange and LiveInterval classes out of LiveIntervals.h (which 
will soon be renamed) into their own file.  The new file should not emit
DEBUG output or have other side effects.  The LiveInterval class also now
doesn't know whether its working on registers or some other thing.

In the future we will want to use the LiveInterval class and friends to do
stack packing.  In addition to a code simplification, this will allow us to
do it more easily.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15134 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 17:49:16 +00:00
Chris Lattner
ec2bc64505 Improve comments a bit 
Use an explicit LiveRange class to represent ranges instead of an std::pair.
This is a minor cleanup, but is really intended to make a future patch simpler
and less invasive.

Alkis, could you please take a look at LiveInterval::liveAt?  I suspect that
you can add an operator<(unsigned) to LiveRange, allowing us to speed up the
upper_bound call by quite a bit (this would also apply to other callers of
upper/lower_bound).  I would do it myself, but I still don't understand that
crazy liveAt function, despite the comment. :)

Basically I would like to see this:
    LiveRange dummy(index, index+1);
    Ranges::const_iterator r = std::upper_bound(ranges.begin(),
                                                ranges.end(),
                                                dummy);

Turn into:
    Ranges::const_iterator r = std::upper_bound(ranges.begin(),
                                                ranges.end(),
                                                index);


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15130 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 08:24:23 +00:00
Chris Lattner
fe1630b43e Force coallescing of live ranges that have a single definition, even if they 
interfere.  Because these intervals have a single definition, and one of them
is a copy instruction, they are always safe to merge even if their lifetimes
interfere.  This slightly reduces the amount of spill code, for example on
252.eon, from:

 12837 spiller               - Number of loads added
  7604 spiller               - Number of stores added
  5842 spiller               - Number of register spills
 18155 liveintervals         - Number of identity moves eliminated after coalescing

to:

  12754 spiller               - Number of loads added
   7585 spiller               - Number of stores added
   5803 spiller               - Number of register spills
  18262 liveintervals         - Number of identity moves eliminated after coalescing

The much much bigger win would be to merge intervals with multiple definitions
(aka phi nodes) but this is not that day.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15124 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 05:26:05 +00:00
Alkis Evlogimenos
910d0d6066 Add Iterative scan register allocator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15068 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 08:24:35 +00:00
Chris Lattner
1c5c0444f1 Split joinIntervals into two methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15003 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 14:08:10 +00:00
Chris Lattner
c49c872a1a Fix comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15002 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 13:28:39 +00:00
Chris Lattner
81e26ce1da Delete 4 methods, make clients use hte mark* methods directly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14999 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 07:52:25 +00:00
Chris Lattner
74de8b1b26 There is no need to store the MBB along with the MI any more, we can now 
ask instructions for their parent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14998 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 07:04:55 +00:00
Chris Lattner
472405e0dc Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14997 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 06:55:21 +00:00
Chris Lattner
73d4adfb1e Remove the DefBlock element of VarInfo. DefBlock is always DefInst->getParent() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14996 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 06:26:50 +00:00
Chris Lattner
6b92906010 fill comment to 80 cols 
remove map that is not needed


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14988 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 02:13:59 +00:00
Alkis Evlogimenos
71bf404e9b Add viewCFG() and viewCFGOnly() APIs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14679 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-08 00:47:58 +00:00
Chris Lattner
8b708e4752 Add a new pass for code generators to use 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14562 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-02 05:44:13 +00:00
Chris Lattner
61e4cb3605 Now that we have happy mappings from MBBs->numbers, use them instead of keeping 
a LV private map


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14522 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-01 06:14:57 +00:00
Chris Lattner
25d8039bd6 Change the implementation of the autonumbering for MBB's a bit to provide 
the reverse mapping as well as the mapping from MBB->unsigned


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14519 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-01 06:01:36 +00:00
Chris Lattner
ea104df2b1 This class is no longer an annotation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14437 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-27 18:50:49 +00:00
Chris Lattner
4aa5b2affb Add a map of MachineCodeForInstruction objects to MachineFunctionInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14436 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-27 18:50:30 +00:00
Chris Lattner
159286d60d Make it obvious that this file is bad bad bad 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14432 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-27 18:21:20 +00:00
Tanya Lattner
b140762a45 Made a fix so that you can print out MachineInstrs that belong to a MachineBasicBlock that is not yet attached to a MachineFunction. This change includes changing the third operand (TargetMachine) to a pointer for the MachineInstr::print function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14389 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 00:13:11 +00:00
Chris Lattner
418da55c89 Rename Interval class to LiveInterval to avoid conflicting with the already 
existing llvm::Interval class.

Patch contributed by Vladimir Prus!
http://mail.cs.uiuc.edu/pipermail/llvmbugs/2004-June/000710.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14281 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 13:10:56 +00:00
Chris Lattner
90a62c8d4b Start moving IntrinsicLowering out of VMCore into libcodegen, as per PR346 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14264 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-20 07:40:46 +00:00
Brian Gaeke
0bbcd6bfd1 Add a forwarding method pop_front() that allows you to delete instructions 
from the beginning of a MBB.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14074 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-08 18:52:47 +00:00
Brian Gaeke
777a1cde66 Add a TmpInstruction ctor that doesn't take a MCFI. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14073 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-08 18:52:46 +00:00
Misha Brukman
a7afa37f3c Clarify documentation and use correct doxygen comment form /// vs. // . 
Thanks to Vladimir Prus for corrections.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14009 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-04 14:51:25 +00:00
Alkis Evlogimenos
6924063bf2 Pull Interval class out of LiveIntervals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13910 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 07:46:27 +00:00
Alkis Evlogimenos
26f5a69e52 When spilling an register, introduce a new temporary for each of its 
spills. This allows for more flexibility when allocating registers for
spill code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13907 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 07:24:39 +00:00
Alkis Evlogimenos
f717a05698 Remove defs vector from live intervals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13892 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 16:18:57 +00:00
Tanya Lattner
17fb34bf8c Moved MachineBasicBlock deconstructor to cpp file and removed it from LeakDetector to fix memory leak bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13718 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-24 07:14:35 +00:00
Tanya Lattner
792699c46e Added MachineFunction parent* to MachineBasicBlock. Customized ilist template 
to set the parent when a MachineBasicBlock is added to a MachineFunction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13716 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-24 06:11:51 +00:00
Tanya Lattner
0c63e03e04 Changed clone to be const. 
Changed copy constructor to set parent, prev, and next pointers to null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13706 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-24 03:14:18 +00:00
Tanya Lattner
b5159ed0cb Fixed up my changes to add support for cloning Machine Instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13665 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 20:58:02 +00:00
Tanya Lattner
466b534a57 Adding support to clone MachineInstr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13661 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 19:35:12 +00:00
Brian Gaeke
91ad59d75e Fix a typo in the head-of-file comment. 
Rewrite the comments about the different versions of BuildMI, to
better emphasize their differences.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13642 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 05:04:00 +00:00
Brian Gaeke
da86bdc75c Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13518 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-12 21:57:23 +00:00
Brian Gaeke
f460f1679e Add a NextMBBNumber field w/ incrementing accessor method, for 
function-level unique numbering of MBBs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13513 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-12 21:35:21 +00:00
Brian Gaeke
c07d8d8a26 Add a Number field w/ accessor method, for function-level unique numbering 
of MBBs.

Add non-const MachineBasicBlock::getParent() accessor method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13512 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-12 21:35:20 +00:00
Chris Lattner
43c81f19ee Add support for inserting all prototypes up-front 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13431 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 04:29:49 +00:00
Tanya Lattner
b4b2e9d5a7 Fixed up sched graph. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13428 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 16:14:24 +00:00
Tanya Lattner
5a75c91951 Registering the ModuloScheduling pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13427 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 16:14:02 +00:00
Brian Gaeke
3ec4f261d2 Chris told me to take these assertions out a few days ago, but I forgot to 
check this in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13313 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-02 01:04:52 +00:00
Chris Lattner
96362e9cac Stop LiveVariables from using BasicBlocks as part of the mapping, instead 
use MachineBasicBlocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13300 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-01 21:23:35 +00:00
Chris Lattner
0aef12a7a9 Move the GraphTraits for MachineBasicBlocks to the MachineBasicBlock file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13299 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-01 21:05:34 +00:00
Brian Gaeke
3707241f31 Add pred./succ. list size methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13214 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-28 04:46:35 +00:00
Brian Gaeke
8560af4f5f Move private methods to end of class decl at Chris's request 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13210 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-28 04:15:06 +00:00
Brian Gaeke
61d3d5c06b Fix thinkos that Chris caught for me. 
Make pred mutators private.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13209 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-28 03:59:48 +00:00
Brian Gaeke
76456bc40c Add machine-code CFG support: MachineBasicBlocks may now have their own 
predecessors and successors


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13208 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-28 02:16:33 +00:00
Brian Gaeke
fd1bb8b974 Add emitWordAt() - a quick and dirty interface that the machine-dependent 
emitters can use to emit "relocations".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13116 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 17:11:12 +00:00
Brian Gaeke
5a509c8225 Include <string> for compatibility with gcc 3.0.x (the system compiler on 
Debian.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12985 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-16 15:57:14 +00:00
Alkis Evlogimenos
9a8b490735 Add definition list to each live interval. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12791 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-09 18:07:57 +00:00
Brian Gaeke
92eaec932c This file does not appear to be included anywhere. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12777 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-08 19:36:26 +00:00
Brian Gaeke
c326c92ca8 This file is no longer used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12767 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-07 21:01:22 +00:00
Chris Lattner
024e91f6f6 Allow converting a builder to an iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12586 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 04:03:10 +00:00
Brian Gaeke
da44b15125 Add clear() forwarding method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12580 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 22:43:12 +00:00
Chris Lattner
83706a5a3a MachineBasicBlock::remove should not change the iterator passed into it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12569 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 21:58:50 +00:00
Alkis Evlogimenos
9cccb8aec7 Fix bug introduced by yesterday's changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12119 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 18:02:07 +00:00
Brian Gaeke
c54839573c Make MachineOperand's value named 'contents'. Make really, really sure 
it is always completely initialized and copied.
Also, fix up many comments and asserts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12100 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-03 19:07:27 +00:00
Alkis Evlogimenos
5f37502bfb Add the long awaited memory operand folding support for linear scan 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12058 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 20:05:10 +00:00
Chris Lattner
a523cdf1b6 Remove public header. It's been moved to lib/Target/SparcV9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12004 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 19:13:20 +00:00
Chris Lattner
e85f2348c9 Do not use explicit casts that hide the dependence on Instruction being 
annotable


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12000 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 19:02:26 +00:00
Chris Lattner
7598a1a9a8 Remove unneeded #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11978 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:15:56 +00:00
Chris Lattner
6a8a9b4413 Continue Alkis's int64_t cleanup. This makes all of the immediate related 
methods take an int or unsigned value instead of int64_t.

Also, add an 'addImm' method to the MachineInstrBuilder class, because the
fact that the hardware sign or zero extends it does not/should not matter
to the code generator.  Once the old sparc backend is removed the difference
can be eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11976 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:06:49 +00:00
Chris Lattner
c3c106ca59 Add BuildMI variants that take a MBB::iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11975 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 04:55:28 +00:00
Alkis Evlogimenos
bd16ef84bf Make MachineOperand's immediate value an int and save 4 bytes out of 
each MachineOperand. We don't really need an int64_t immediate :-).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11906 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 15:05:28 +00:00
Alkis Evlogimenos
4d0d864be3 Add DenseMap template and actually use it for for mapping virtual regs 
to objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11840 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-25 21:55:45 +00:00
Brian Gaeke
748fba141f FunctionLiveVarInfo.h moved: include/llvm/CodeGen -> lib/Target/Sparc/LiveVar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11804 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-24 19:46:00 +00:00
Alkis Evlogimenos
743d0a1f83 Refactor rewinding code for finding the first terminator of a basic 
block into MachineBasicBlock::getFirstTerminator().

This also fixes a bug in the implementation of the above in both
RegAllocLocal and InstrSched, where instructions where added after the
terminator if the basic block's only instruction was a terminator (it
shouldn't matter for RegAllocLocal since this case never occurs in
practice).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11748 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-23 18:14:48 +00:00
Alkis Evlogimenos
a2f6a408dc Move LiveIntervals.h to lib/CodeGen since it shouldn't be exposed to other parts of the compiler 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11719 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-23 00:50:15 +00:00
Alkis Evlogimenos
890f92328d Move MOTy::UseType enum into MachineOperand. This eliminates the 
switch statements in the constructors and simplifies the
implementation of the getUseType() member function. You will have to
specify defs using MachineOperand::Def instead of MOTy::Def though
(similarly for Use and UseAndDef).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11715 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 19:23:26 +00:00
Alkis Evlogimenos
e33da36cbd Fix silly bug in implementation of getUseType(). Thanks Misha. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11711 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 07:24:19 +00:00
Alkis Evlogimenos
f216421181 When folding memory operands in machine instructions be careful to 
leave register operands with the same use/def flags as the original
instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11709 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 06:54:26 +00:00
Alkis Evlogimenos
7200c6b82a Abstract merging of ranges away from number of slots per instruction. 
Also make it less aggressive as the current implementation breaks in
some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11696 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 04:05:13 +00:00
Alkis Evlogimenos
39a0d5c112 Too many changes in one commit: 
1. LiveIntervals now implement a 4 slot per instruction model. Load,
   Use, Def and a Store slot. This is required in order to correctly
   represent caller saved register clobbering on function calls,
   register reuse in the same instruction (def resues last use) and
   also spill code added later by the allocator. The previous
   representation (2 slots per instruction) was insufficient and as a
   result was causing subtle bugs.

2. Fixes in spill code generation. This was the major cause of
   failures in the test suite.

3. Linear scan now has core support for folding memory operands. This
   is untested and not enabled (the live interval update function does
   not attempt to fold loads/stores in instructions).

4. Lots of improvements in the debugging output of both live intervals
   and linear scan. Give it a try... it is beautiful :-)

In summary the above fixes all the issues with the recent reserved
register elimination changes and get the allocator very close to the
next big step: folding memory operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11654 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 06:15:40 +00:00
Chris Lattner
da8ab2ea45 ADd a method for when an instruction moves 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11626 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 18:28:22 +00:00
Chris Lattner
5e61fa9519 Add a MachineBasicBlock::getParent() method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11622 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 16:13:54 +00:00
Alkis Evlogimenos
52f8f56ef4 Move unused typedefs in private section. Add method to return interval 
given a register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11608 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 23:14:52 +00:00
Chris Lattner
9b2c31c5cb eliminate a pair of really inefficient methods now that noone uses them 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11579 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 16:45:22 +00:00
Alkis Evlogimenos
7093d37304 Add LiveIntervals::Interval::empty() member function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11520 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 05:14:37 +00:00
Alkis Evlogimenos
aad5c05051 Add LeakDetection to MachineInstr. 
Move out of line member functions of MachineBasicBlock to
MachineBasicBlock.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11497 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 07:17:43 +00:00
Alkis Evlogimenos
843b160a20 Eliminate the use of spill (reserved) registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11476 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 10:24:21 +00:00
Chris Lattner
46ccf6d382 finegrainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11469 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 05:52:36 +00:00
Alkis Evlogimenos
be766c7246 Remove getAllocatedRegNum(). Use getReg() instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11393 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-13 21:01:20 +00:00
Alkis Evlogimenos
903b22cd51 Mark MachineBasicBlock::operator[] deprecated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11392 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-13 20:05:56 +00:00
Alkis Evlogimenos
87af94b291 Add getNumVirtualRegs(). 
Whitespace cleanups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11388 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-13 18:07:06 +00:00
Brian Gaeke
f13a3f4dd1 Include <iosfwd>. 
Add prototypes for MachineBasicBlock's dump() and print() methods.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11365 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-13 04:40:15 +00:00
Alkis Evlogimenos
94dc07728f Move ilist_trairs<MachineInstr> in MachineBasicBlock. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11358 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 19:12:03 +00:00
Alkis Evlogimenos
ab8672c8bb Add parent pointer to MachineInstr that points to owning 
MachineBasicBlock. Also change opcode to a short and numImplicitRefs
to an unsigned char so that overall MachineInstr's size stays the
same.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11357 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 18:49:07 +00:00
Chris Lattner
2a90ba6017 Rename the opCode instance variable to Opcode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11348 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 16:09:53 +00:00
Chris Lattner
9fc77d1358 Remove a dead field from MachineInstr! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11347 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 16:05:03 +00:00
Brian Gaeke
0eda78a372 Add one more doxygen comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11344 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 04:26:49 +00:00
Brian Gaeke
56aa531f93 Express one of MachineOperand's many constructors in terms of another, by means of default arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11343 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 04:15:00 +00:00
Brian Gaeke
2d58f0691e Remove these MachineOpCodeFlags and their accessor - they are never set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11341 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 04:00:55 +00:00
Alkis Evlogimenos
c0b9dc5be7 Change MachineBasicBlock's vector of MachineInstr pointers into an 
ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 02:27:10 +00:00
Brian Gaeke
cd0b3a90aa Remove getOpCode(). Help doxygenify some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11338 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 01:34:03 +00:00
Chris Lattner
d6b5e5f637 Urg, the X86 backend DOES use virtual register operands. :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11288 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-10 21:43:11 +00:00
Chris Lattner
376ad9fa9f Remove and simplify some of the bewildering collection of isFOORegister 
methods which have strangely different semantics in different backends,
and noone knew what any did.

Getting rid of these ALSO allows the dependence of MachineInstr.h on
MRegisterInfo.h to be removed, which makes me much happier, and probably
alkis too.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11287 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-10 21:21:17 +00:00
Chris Lattner
9f42dd5472 Eliminate MachineOperand::isPhysicalRegister. The X86 backend should use 
MRegisterInfo::isPhysicalRegister(MO.getReg()) and the Sparc backend should
use isMachineRegister()


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11279 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-10 20:42:11 +00:00
Chris Lattner
b2e5db94cf Simplify condition, this does not change the predicate at all though 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11275 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-10 20:30:40 +00:00
Brian Gaeke
f7ecb9548d SchedGraph doesn't need to be friends with SchedGraphNodeCommon anymore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11240 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-09 18:43:06 +00:00
Alkis Evlogimenos
14be64018f Modify the two address instruction pass to remove the duplicate 
operand of the instruction and thus simplify the register allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11124 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 22:17:40 +00:00
Brian Gaeke
fc1f6e835c Include <iosfwd> and <string> instead of <iostream>. 
Take away the default iostream argument of createMachineFunctionPrinterPass(),
at Chris's request.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11121 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 21:41:10 +00:00
Alkis Evlogimenos
4e7854407c When an instruction like: A += B had both A and B virtual registers 
spilled, A was loaded from its stack location twice. This fixes the bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11093 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-03 01:13:07 +00:00
Alkis Evlogimenos
9fe7602862 Revert changes. Will implement this using a different set of primitives 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11091 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-02 23:08:58 +00:00
Alkis Evlogimenos
782ce955b2 Add MachineOperand::setDef() and MachineOperand::setUse() so that the 
TwoAddressInstructionPass can correctly update use/def information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11086 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-02 21:55:18 +00:00
Alkis Evlogimenos
08cec00588 Merge safe parts from last night's buggy commit. These do not break 
any test cases :-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11032 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-31 19:59:32 +00:00
Alkis Evlogimenos
4d46e1e521 Revert last night's changes as they broke some tests. Will remerge parts of the patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11029 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-31 14:37:41 +00:00
Alkis Evlogimenos
32bdd4ea65 Several performance enhancements and cleanups from Chris. 
Simplification of LiveIntervals::Interval::overlaps() and addition of
examples to overlaps() and liveAt() to make them clearer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11028 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-31 04:56:07 +00:00
Chris Lattner
43549f710a Add a new lazily constructed mapping from Idx's the MBB they represent 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11017 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-30 22:08:09 +00:00
Brian Gaeke
09caa3751f Give clients of MachineFunctionPrinter the ability to specify a banner and 
choose an ostream.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11016 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-30 21:53:46 +00:00
Alkis Evlogimenos
79b0c3f0b9 Fix failing test cases with joined live intervals. It turns out that 
when joining we need to check if we overlap with the second interval
or any of its aliases.

Also make joining intervals the default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10973 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-23 13:37:51 +00:00
Alkis Evlogimenos
e88280a422 Add option to join live intervals. Two intervals are joined if there 
is a move between two registers, at least one of the registers is
virtual and the two live intervals do not overlap.

This results in about 40% reduction in intervals, 30% decrease in the
register allocators running time and a 20% increase in peephole
optimizations (mainly move eliminations).

The option can be enabled by passing -join-liveintervals where
appropriate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10965 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-22 23:08:45 +00:00
Tanya Lattner
a105c802b2 Moved iterators to common file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10925 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-20 17:49:42 +00:00
Alkis Evlogimenos
3b02cbe752 Fold open interval ends handling into 
LiveIntervals::Interval::expiredAt() and simplify regalloc code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10894 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-16 20:17:05 +00:00
Alkis Evlogimenos
f5f1689ed2 Use a list instead of a vector to store intervals. This will be needed 
when we join intervals and one of the two will need to be removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10892 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-16 16:06:59 +00:00
Alkis Evlogimenos
1a119e2410 Remove allocatable registers vector. It is already provided by 
LiveVariables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10830 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-13 22:10:43 +00:00
Alkis Evlogimenos
b08bdc4a16 Make LiveVariables::HandlePhysRegUse and 
LiveVariables::HandlePhysRegDef private they use information that is
not in memory when LiveVariables finishes the analysis.

Also update the TwoAddressInstructionPass to not use this interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10755 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-11 09:18:45 +00:00
Chris Lattner
f70e0c216c Clean up a lot of the code I added yesterday by exposing the IntrinsicLowering 
implementation from the TargetMachine directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10636 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-28 21:23:38 +00:00
Alkis Evlogimenos
26bfc08b80 Add coalescing to register allocator. A hint is added to each interval 
which denotes the register we would like to be assigned to (virtual or
physical). In register allocation, if this hint exists and we can map
it to a physical register (it is either a physical register or it is a
virtual register that already got assigned to a physical one) we use
that register if it is available instead of a random one in the free
pool.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10634 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-28 17:58:18 +00:00
Chris Lattner
09c692bcef add argument 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10625 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-28 09:42:49 +00:00
Chris Lattner
624affb56f ABC's must have virtual dtors! Shame on me! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10624 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-28 08:55:50 +00:00
Chris Lattner
8a1931a942 Move header into top-level llvm dir 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10622 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-28 08:30:07 +00:00
Chris Lattner
3f52c1561d Add new interface that allows removal of some code from the code generators, 
provides for future extensibility, might help the LLVA project avoid having to
hack their own LLI, and provides support required for the experimental Venus
project.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10620 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-28 08:19:13 +00:00
Alkis Evlogimenos
6b4edbaaf9 Change weight into a float so that we can take into account the 
nesting level when computing it. Right now the allocator uses:

    w = sum_over_defs_uses( 10 ^ nesting level );


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10569 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-21 20:19:10 +00:00
Alkis Evlogimenos
169cfd0196 Add support for inactive intervals. This effectively reuses registers 
for live ranges that fall into assigned registers' holes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10566 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-21 05:43:40 +00:00
Chris Lattner
3e200e6c3b Rearrange code, indent for the namespace, add the createMachineFunctionPrinterPass 
to passes.h, and add the machien destruction pass to Passes.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10557 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-20 10:18:58 +00:00
Chris Lattner
73c1366ee2 Remove sparc specific passes from public headers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10552 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-20 09:15:21 +00:00
Chris Lattner
61838824c2 Remove a horrible API 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10551 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-20 09:15:01 +00:00
Alkis Evlogimenos
4c080863de Remove TwoAddressInstruction from the public headers and add an ID 
instead, since this pass doesn't expose any state to its users.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10520 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-18 22:40:24 +00:00
Alkis Evlogimenos
71499ded4d Add TwoAddressInstructionPass to handle instructions that have two or 
more operands and the two first operands are constrained to be the
same. The pass takes an instruction of the form:

        a = b op c

and transforms it into:

        a = b
        a = a op c

and also preserves live variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10512 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-18 13:06:04 +00:00
Alkis Evlogimenos
485ec3c21e Rename LiveIntervals::expired() to LiveIntervals::expiredAt(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10511 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-18 08:56:11 +00:00
Alkis Evlogimenos
dd2cc65f34 Handle multiple virtual register definitions gracefully. 
Move some of the longer LiveIntervals::Interval method out of the
header and add debug information to them. Fix bug and simplify range
merging code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10509 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-18 08:48:48 +00:00
Alkis Evlogimenos
721b4e5715 I wonder how this didn't cause any tests to fail... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10462 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-14 13:30:19 +00:00
Alkis Evlogimenos
4d7af65903 Change interface of MachineOperand as follows: 
a) remove opIsUse(), opIsDefOnly(), opIsDefAndUse()
    b) add isUse(), isDef()
    c) rename opHiBits32() to isHiBits32(),
              opLoBits32() to isLoBits32(),
              opHiBits64() to isHiBits64(),
              opLoBits64() to isLoBits64().

This results to much more readable code, for example compare
"op.opIsDef() || op.opIsDefAndUse()" to "op.isDef()" a pattern used
very often in the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10461 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-14 13:24:17 +00:00
Alkis Evlogimenos
4c214d2bf0 Ignore non-allocatable physical registers in live interval analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10449 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-13 11:11:02 +00:00
Alkis Evlogimenos
b27ef248f5 Move operator<<(std::ostream&, const LiveInterval&) out of the header file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10290 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-05 10:38:28 +00:00
Chris Lattner
786a518f47 Add some "useful" methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10277 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-01 05:30:29 +00:00
Alkis Evlogimenos
ff0cbe175d Merging the linear scan register allocator in trunk. It currently passes most tests under test/Programs/SingleSource/Benchmarks/Shootout so development will continue on trunk. The allocator is not enabled by default. You will need to pass -regallo=linearscan to lli or llc to use it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10103 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-20 03:32:25 +00:00
Brian Gaeke
d0fde30ce8 Put all LLVM code into the llvm namespace, as per bug 109. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-11 22:41:34 +00:00
Chris Lattner
d97487d1e0 Actually share constants local to a function! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9417 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-23 16:29:12 +00:00
Chris Lattner
5f7e61d226 Add a new map 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9311 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-20 20:55:13 +00:00
John Criswell
6fbcc26f14 Added LLVM copyright header (for lack of a better term). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9304 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-20 20:19:47 +00:00
Brian Gaeke
661ab811d8 This file has funny include guards and funny extra whitespace. 
Make this file less funny.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9186 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-16 23:43:35 +00:00
Chris Lattner
ea2c1dcb7c We'll need this soon as well 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9145 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-15 22:09:46 +00:00
Alkis Evlogimenos
185a7ab2ed Forward declare class Type since it is used in this class and Type.h is not included 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8958 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-08 04:45:45 +00:00
Alkis Evlogimenos
7237ecef13 Moved enum and command-line option in separate file. Also added function that returns the user selected register allocator to the caller. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8819 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-02 16:57:49 +00:00
Alkis Evlogimenos
eed462b685 Change llc command line for register allocators 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8815 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-02 06:13:19 +00:00
Chris Lattner
e5d1a22ef2 Forward declare a class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8797 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-09-30 20:15:40 +00:00
Chris Lattner
799e0802b2 This got merged into Passes.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8796 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-09-30 20:15:32 +00:00
Chris Lattner
086610926f Include the sparc register in this file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8794 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-09-30 20:14:43 +00:00
Chris Lattner
48486893f4 Standardize header file comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8782 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-09-30 18:37:50 +00:00
Chris Lattner
c36e4f465c Fix header comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8779 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-09-30 18:12:25 +00:00
Chris Lattner
697ebcadbf Fix header, remove dead decl 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8777 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-09-30 18:06:51 +00:00
Chris Lattner
5259f8d030 Fix header file comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8776 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-09-30 18:05:30 +00:00
Chris Lattner
5ab12b579e Remove header files that were privatized 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8307 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-09-01 20:33:38 +00:00
Chris Lattner
1a3350d6cd This file is never #included 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8300 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-09-01 20:19:31 +00:00
Tanya Lattner
f68b8a2dee Moved index in BB to common graph class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8175 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-28 15:31:28 +00:00
Tanya Lattner
d04087cce6 *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8161 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-27 15:52:23 +00:00
Tanya Lattner
1796cb7fbc Cleaned up the code (spacing, not needed headers) and changed ostream function. Also made some functions inline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8154 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-27 02:45:08 +00:00
Tanya Lattner
0320b1406e SchedGraphCommon header file. Contains class definition for SchedGraphCommon which is used by SchedGraph and ModuloSchedGraph (coming soon). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8149 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-25 23:12:23 +00:00
Chris Lattner
b274d4a38b Add missing #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8063 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-22 23:08:55 +00:00
Misha Brukman
ef6a6a69ff The word dependent' has no a'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8030 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-21 22:14:26 +00:00
Chris Lattner
f4f5f8bcaa Add support for basic blocks, unary/binary unspecs, conditional branches, ... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7874 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-15 04:52:51 +00:00
Brian Gaeke
bf3c4cfaad Factory methods for function passes now return type FunctionPass *. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7839 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-14 06:09:32 +00:00
Brian Gaeke
19df3876e6 Factory methods for FunctionPasses now return type FunctionPass *. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7823 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-13 18:18:15 +00:00
Vikram S. Adve
906cd975df Make MInst2LVSetBI and MInst2LVSetAI be hash_maps instead of maps. 
Add some comments and non-const methods to fix constness problems.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7797 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-12 23:39:08 +00:00
Chris Lattner
cacf462915 Initial checkin of SelectionDAG header file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7716 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-11 14:56:26 +00:00
Chris Lattner
3314d8d656 There was no reason for these to be bit-fields, they just need to be unique. 
Also, add an isVoid item


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7659 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-07 00:17:00 +00:00
Chris Lattner
5e8b77e375 Completely eliminate the per-machine-instruction regsUsed set. 
This substantially shrinks the size of each machine instruction, which should
make allocation faster and the cache footprint of the machine code lighter.

Here are some timings for code generation of the larger benchmarks we have.
This are timings of code generation phases of the X86 JIT, when compiled in
debug mode:

		Before	After	Diff
164.gzip:
  InstSel	0.0878	0.0722	-21.6%
  RegAlloc	0.2031	0.1757	-15.6%
  TOTAL		0.5585	0.4999	-11.7%
Ptrdist-bc:
  InstSel	0.0878	0.0722	-21.6%
  RegAlloc	0.2070	0.1933	- 7.1%
  TOTAL		0.6972	0.6464	- 7.9%
197.parser:
  InstSel	0.2148	0.2148	- 0.0%
  RegAlloc	0.4941	0.4277	-15.5%
  TOTAL		1.3749	1.2851	- 7.0%
175.vpr:
  InstSel	0.2519	0.2109	-19.4%
  RegAlloc	0.5976	0.5663	- 5.5%
  TOTAL		1.6933	1.6347	- 3.5%
254.gap:
  InstSel	1.1328	0.9921	-14.2%
  RegAlloc	2.6933	2.4804	- 8.6%
  TOTAL		7.7871	7.2499	- 7.4%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7622 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-05 22:39:13 +00:00