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601 Commits

Author SHA1 Message Date
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