Commit Graph

39 Commits

Author SHA1 Message Date
Chris Lattner 57b21f9f10 clean up this code a bit, no functionality change
llvm-svn: 23609
2005-10-03 07:22:07 +00:00
Chris Lattner 5f096e2847 Break the body of the loop out into a new method
llvm-svn: 23606
2005-10-03 04:47:08 +00:00
Chris Lattner 469652752c adjust to new live variables interface
llvm-svn: 22992
2005-08-23 23:42:17 +00:00
Misha Brukman 584ed83d4a * Order #includes alphabetically
* Remove commented-out debug printouts

llvm-svn: 21707
2005-05-05 23:45:17 +00:00
Misha Brukman 774511633d Convert tabs to spaces
llvm-svn: 21439
2005-04-22 04:01:18 +00:00
Misha Brukman 835702a094 Remove trailing whitespace
llvm-svn: 21420
2005-04-21 22:36:52 +00:00
Reid Spencer 7c16caa336 Changes For Bug 352
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
2004-09-01 22:55:40 +00:00
Chris Lattner 2d75978bc6 Update live intervals more accurately for PHI elim. This slightly reduces
the live intervals for some registers.

llvm-svn: 15125
2004-07-23 05:27:43 +00:00
Chris Lattner 84b93bb107 costmetic changes
llvm-svn: 15118
2004-07-22 23:05:12 +00:00
Chris Lattner aef6c2a350 There is no need to store the MBB along with the MI any more, we can now
ask instructions for their parent.

llvm-svn: 14998
2004-07-19 07:04:55 +00:00
Chris Lattner a74cf5a7d9 Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead)
llvm-svn: 14997
2004-07-19 06:55:21 +00:00
Chris Lattner 6c375e4926 Start using MBB numbers directly instead of going through the live variables
map.

llvm-svn: 14518
2004-07-01 04:29:47 +00:00
Chris Lattner 2150542af9 Adjust to new TargetMachine interface
llvm-svn: 13956
2004-06-02 05:57:12 +00:00
Chris Lattner 6307b8d061 Fix a really nasty bug from my changes on Monday to PHIElim. These changes
broke obsequi and a lot of other things.  It all boiled down to MBB being
overloaded in an inner scope and me confusing it with the one in the outer
scope.  Ugh!

llvm-svn: 13517
2004-05-12 21:47:57 +00:00
Chris Lattner 24f200ad7b Switch this from using an std::map to using a DenseMap. This speeds up
phi-elimination from 0.6 to 0.54s on kc++.

llvm-svn: 13454
2004-05-10 19:17:36 +00:00
Chris Lattner 39a1e0a33e Use a new VRegPHIUseCount to compute uses of PHI values by other phi values
in the basic block being processed.  This fixes PhiElimination on kimwitu++
from taking 105s to taking a much more reasonable 0.6s (in a debug build).

llvm-svn: 13453
2004-05-10 19:06:37 +00:00
Chris Lattner a2f7b9bddc Now that we use an ilist of machine instructions, iterators are more robust
than before.  Because this is the case, we can compute the first non-phi
instruction once when de-phi'ing a block.  This shaves ~4s off of
phielimination of _Z7yyparsev in kimwitu++ from 109s -> 105s.  There are
still much more important gains to come.

llvm-svn: 13452
2004-05-10 18:47:18 +00:00
Chris Lattner 8c0bc68910 Operate on the Machine CFG instead of on the LLVM CFG
llvm-svn: 13302
2004-05-01 21:24:39 +00:00
Chris Lattner acccf32aa3 MachineBasicBlock::remove should not modify the iterator passed in
llvm-svn: 12571
2004-03-31 21:59:29 +00:00
Chris Lattner 43df6c268b Finegrainify namespacification
llvm-svn: 11757
2004-02-23 18:38:20 +00:00
Alkis Evlogimenos af2de4848e 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).

llvm-svn: 11748
2004-02-23 18:14:48 +00:00
Alkis Evlogimenos 5a92240270 Use newly added next() and prior() utility functions.
llvm-svn: 11430
2004-02-14 01:18:34 +00:00
Alkis Evlogimenos 8cdd0215bf Remove getAllocatedRegNum(). Use getReg() instead.
llvm-svn: 11393
2004-02-13 21:01:20 +00:00
Alkis Evlogimenos 80da865f77 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.

llvm-svn: 11340
2004-02-12 02:27:10 +00:00
Chris Lattner 5dd5be3ec3 Do not use MachineOperand::isVirtualRegister either!
llvm-svn: 11283
2004-02-10 21:12:22 +00:00
Alkis Evlogimenos aaba4639f8 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.

llvm-svn: 10461
2003-12-14 13:24:17 +00:00
Brian Gaeke 960707c335 Put all LLVM code into the llvm namespace, as per bug 109.
llvm-svn: 9903
2003-11-11 22:41:34 +00:00
John Criswell 482202a601 Added LLVM project notice to the top of every C++ source file.
Header files will be on the way.

llvm-svn: 9298
2003-10-20 19:43:21 +00:00
Chris Lattner 414832fea6 Const correctness fixes
llvm-svn: 7349
2003-07-26 23:24:56 +00:00
Chris Lattner a7c5e0fba3 Fix bug: Jello/2003-06-04-bzip2-bug.ll
llvm-svn: 6624
2003-06-05 17:15:04 +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 1103e8349d Use a kill, not a dead definition, update comment
llvm-svn: 6131
2003-05-12 17:37:30 +00:00
Chris Lattner 51ae817fd6 * Keep LiveVariable information more up-to-date and consistent
* *** Finally mark values that are inputs to PHIs as killed when appropriate.
   This should make the generated code quite a bit better.  For example, the
   local-ra will not have to spill PHI inputs at the end of predecessor BB's
   anymore.

llvm-svn: 6117
2003-05-12 14:28:28 +00:00
Chris Lattner 2e50ac75a0 Fix bug where we could iterate off the end of a basic block
llvm-svn: 6116
2003-05-12 14:26:38 +00:00
Chris Lattner bd854dafec Fix N^2 algorithm
llvm-svn: 6112
2003-05-12 04:08:54 +00:00
Chris Lattner 00ee7cfa83 * Fix several comments
* Update LiveVar info better, fixing bug: Jello/2003-05-11-PHIRegAllocBug.ll

llvm-svn: 6110
2003-05-12 03:55:21 +00:00
Chris Lattner 176866caed Fix problems with empty basic blocks
llvm-svn: 5326
2003-01-16 18:06:43 +00:00
Chris Lattner b4d58d7f9e Rename MachineInstrInfo -> TargetInstrInfo
llvm-svn: 5272
2003-01-14 22:00:31 +00:00
Chris Lattner cab0b442f2 New files
llvm-svn: 5262
2003-01-13 20:01:16 +00:00