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1965 Commits

Author SHA1 Message Date
Alkis Evlogimenos
b9df133d67 Revert last night's changes as they broke some tests. Will remerge parts of the patch. 
llvm-svn: 11029
 2004-01-31 14:37:41 +00:00
Alkis Evlogimenos
c0db519832 Several performance enhancements and cleanups from Chris. 
Simplification of LiveIntervals::Interval::overlaps() and addition of
examples to overlaps() and liveAt() to make them clearer.

llvm-svn: 11028
 2004-01-31 04:56:07 +00:00
Chris Lattner
bb4d6f00f9 Add a new pointsToConstantMemory method to the AliasAnalysis interface 
which can be implemented to improve the quality of mod-ref information.

llvm-svn: 11020
 2004-01-30 22:15:41 +00:00
Chris Lattner
8671a315d5 Add a new lazily constructed mapping from Idx's the MBB they represent 
llvm-svn: 11017
 2004-01-30 22:08:09 +00:00
Brian Gaeke
9cf840250b Give clients of MachineFunctionPrinter the ability to specify a banner and 
choose an ostream.

llvm-svn: 11016
 2004-01-30 21:53:46 +00:00
Misha Brukman
64f7595915 Doxygenify comments. 
llvm-svn: 11014
 2004-01-30 17:22:50 +00:00
Chris Lattner
fc239578ad Keep track of all of the globals inserted into the scalar map 
llvm-svn: 10995
 2004-01-28 03:01:22 +00:00
Chris Lattner
268db40292 Pull the ScalarMap out into something that is more structured than what we had 
before.  This allows us to have a place to implement optimizations in a
structured way.

llvm-svn: 10994
 2004-01-28 02:42:12 +00:00
Chris Lattner
2ead39d5c8 Minor tweaks 
llvm-svn: 10983
 2004-01-27 21:49:42 +00:00
Chris Lattner
16a5e6bf33 Add comments, allow DSNode "copy ctor" to ignore outgoing links, add more 
structured access to the globals list, add a couple helper methods.

llvm-svn: 10982
 2004-01-27 21:49:25 +00:00
Chris Lattner
95d03595ae * cloneReachable* and clonePartiallyInto are not obsolete 
* Make AssertNodeInGraph not be HORRIBLY time consuming
* Eliminate the dead mergeInGlobalsGraph method
*** Add the definition for the new ReachabilityCloner class

llvm-svn: 10981
 2004-01-27 21:48:35 +00:00
Alkis Evlogimenos
2a8df1739b 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.

llvm-svn: 10973
 2004-01-23 13:37:51 +00:00
Chris Lattner
de6ca7bf30 Add new flag, other minor modifications 
llvm-svn: 10969
 2004-01-23 01:42:32 +00:00
Chris Lattner
99f9b84640 Fix grammar 
llvm-svn: 10968
 2004-01-23 01:42:16 +00:00
Alkis Evlogimenos
b4745bda05 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.

llvm-svn: 10965
 2004-01-22 23:08:45 +00:00
Chris Lattner
a72f3a387a Eliminated the CompletedNodes argument to the cloneReachable* methods. This 
map was only used to implement a marginal GlobalsGraph optimization, and it
actually slows the analysis down (due to the overhead of keeping it), so just
eliminate it entirely.

llvm-svn: 10955
 2004-01-22 16:56:13 +00:00
Chris Lattner
7348bd20b1 It doesn't make sense for one side to be const, but not the other. 
llvm-svn: 10952
 2004-01-22 16:08:51 +00:00
Chris Lattner
5f0e00c8b2 Remove const qualifier (all Value*'s are nonconst in DSA, so it's not clear 
why this one was)

Add new method proto

llvm-svn: 10950
 2004-01-22 15:26:52 +00:00
Chris Lattner
f2a7d96dde Specialize std::swap correctly 
llvm-svn: 10949
 2004-01-22 15:26:15 +00:00
Misha Brukman
38664cbb8b To materialize a module, you need to know what functions NEED to be read and 
which ones don't, which is state that the parent class doesn't know without
knowing the implementation. Let the children classes implement
materializeModule().

llvm-svn: 10942
 2004-01-21 22:54:10 +00:00
Misha Brukman
26b6be3053 If you call abort(), #include <cstdlib> 
llvm-svn: 10941
 2004-01-21 22:50:12 +00:00
Brian Gaeke
4838716cc4 Regenerated using autoconf-2.57 and autoheader-2.57. 
llvm-svn: 10934
 2004-01-21 19:39:29 +00:00
Chris Lattner
3910d21d01 Move SlotCalculator.h from include/llvm to include/llvm/Analysis 
llvm-svn: 10930
 2004-01-20 19:50:12 +00:00
Tanya Lattner
33079fad04 Moved iterators to common file. 
llvm-svn: 10925
 2004-01-20 17:49:42 +00:00
Chris Lattner
64a4d5c1e4 add a method proto, make a method not inline 
llvm-svn: 10921
 2004-01-20 00:54:47 +00:00
Chris Lattner
d9e314f73e Add enum for compaction table. 
llvm-svn: 10916
 2004-01-18 21:09:23 +00:00
Chris Lattner
695d454b4f Add support for representing the "compaction table" 
Change protected members to private.  Nothing should subclass SlotCalculator

llvm-svn: 10912
 2004-01-18 21:03:49 +00:00
Chris Lattner
9108f1462c fix copy-and-pasto 
llvm-svn: 10907
 2004-01-17 22:48:06 +00:00
Chris Lattner
c5d5cc7b8f Revision of Brian's threading support library to be a bit more generic and 
platform independent.  This code is completely untested (but never used),
and needs autoconf support for detecting pthreads, but it's a start, and
deletes two emails from my inbox.  :)

llvm-svn: 10906
 2004-01-17 19:54:29 +00:00
Alkis Evlogimenos
38f0f867b3 Fold open interval ends handling into 
LiveIntervals::Interval::expiredAt() and simplify regalloc code.

llvm-svn: 10894
 2004-01-16 20:17:05 +00:00
Alkis Evlogimenos
61db3621bd 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.

llvm-svn: 10892
 2004-01-16 16:06:59 +00:00
Brian Gaeke
1c65ca3a84 Remove configure support for endianness checking, the need for which 
Chris has helpfully expunged.

llvm-svn: 10873
 2004-01-15 06:22:37 +00:00
Chris Lattner
0184383aa7 Remove ENDIAN_* support. LLVM does not need it anymore. 
llvm-svn: 10872
 2004-01-15 06:13:58 +00:00
Chris Lattner
4a78294f54 Remove broken doxygen comments 
llvm-svn: 10869
 2004-01-15 04:37:10 +00:00
Chris Lattner
71acf2763d Improve comments, add support for remembering the constants strings that 
are to be emitted.

llvm-svn: 10866
 2004-01-14 23:37:43 +00:00
Chris Lattner
7ad2ec9e20 add support for -- for symmetry 
llvm-svn: 10865
 2004-01-14 23:37:22 +00:00
Chris Lattner
599ab961c4 Add new ConstantArray::isString(), as the conditions for using getString() 
are complex enough to check that it should be a seperate method.

While I'm here, improve ConstantArray::getNullValue a bit, though the
FIXME is still quite valid.

llvm-svn: 10850
 2004-01-14 17:06:21 +00:00
Chris Lattner
bcd7372d19 The only clients of the slot calculator are now the asmwriter and bcwriter. 
Since this really only makes sense for these two, change hte instance variable
to reflect whether we are writing a bytecode file or not.  This makes it
reasonable to add bcwriter specific stuff to it as necessary.

llvm-svn: 10837
 2004-01-14 02:49:34 +00:00
Alkis Evlogimenos
c73c31a496 Remove allocatable registers vector. It is already provided by 
LiveVariables.

llvm-svn: 10830
 2004-01-13 22:10:43 +00:00
Brian Gaeke
fafbbe908d Regenerated using autoheader-2.57. 
llvm-svn: 10817
 2004-01-13 07:09:57 +00:00
Chris Lattner
ebdd628dbf Add new method 
llvm-svn: 10809
 2004-01-12 23:18:06 +00:00
Chris Lattner
f6f9aafee4 Move this file to lib/VMCore 
llvm-svn: 10804
 2004-01-12 20:47:29 +00:00
Chris Lattner
0c243f5c04 Eliminate a lot of out-of-date comments, and all of the wierd overloaded 
operator constant folding stuff.

llvm-svn: 10803
 2004-01-12 20:43:44 +00:00
Chris Lattner
cf1d9df549 The getShift method is no obsolete 
llvm-svn: 10797
 2004-01-12 19:37:26 +00:00
Chris Lattner
98a45667fb llvm::ConstantFoldInstruction 
llvm-svn: 10787
 2004-01-12 18:25:56 +00:00
Chris Lattner
28e5347635 Move prototype of llvm::ConstantFoldInstruction 
llvm-svn: 10786
 2004-01-12 18:25:44 +00:00
Alkis Evlogimenos
ef7c077e63 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.

llvm-svn: 10755
 2004-01-11 09:18:45 +00:00
Chris Lattner
95db39508d Minor cleanup 
llvm-svn: 10752
 2004-01-10 21:40:29 +00:00
Chris Lattner
852fe1861f Remove standard C file wrapper 
llvm-svn: 10746
 2004-01-10 19:15:00 +00:00
Chris Lattner
362ac0817b Remove wrapper for standard C file, use <cstdlib> instead 
llvm-svn: 10745
 2004-01-10 19:12:44 +00:00