ff9362a8da
Add SCCP support for constant folding calls, implementing:
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test/Regression/Transforms/SCCP/calltest.ll
llvm-svn: 12921
2004-04-13 19:43:54 +00:00
69193f93b6
Support getelementptr instructions which use uint's to index into structure
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types and can have arbitrary 32- and 64-bit integer types indexing into
sequential types.
llvm-svn: 12653
2004-04-05 01:30:19 +00:00
7a7b114871
Do not try to optimize PHI nodes with incredibly high degree. This reduces SCCP
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time from 615s to 1.49s on a large testcase that has a gigantic switch statement
that all of the blocks in the function go to (an intepreter).
llvm-svn: 12442
2004-03-16 19:49:59 +00:00
59db22dcd4
Add sccp support for select instructions
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llvm-svn: 12318
2004-03-12 05:52:44 +00:00
538fee7aa2
Since 'load null' is undefined, we can make it do whatever we want. Returning
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a zero value is the most likely way to cause further simplification, so we do it.
llvm-svn: 12197
2004-03-07 22:16:24 +00:00
76b2ff4ded
Adjustments to support the new ConstantAggregateZero class
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llvm-svn: 11474
2004-02-15 05:55:15 +00:00
1b7d4d7b63
Don't use ConstantExpr::getShift anymore
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llvm-svn: 10791
2004-01-12 19:08:43 +00:00
0fe5b32c01
Use constantexprs for casts. Eliminate use of the ConstantHandling interfaces
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llvm-svn: 10779
2004-01-12 17:43:40 +00:00
fe992d4332
Fix fairly severe bug in my last checking where we treated all unfoldable
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constants as being "true" when evaluating branches. This was introduced
because we now create constantexprs for the constants instead of failing the
fold.
llvm-svn: 10778
2004-01-12 17:40:36 +00:00
49f74522ec
* Implement minor performance optimization for the getelementptr case
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* Implement SCCP of load instructions, implementing Transforms/SCCP/loadtest.ll
This allows us to fold expressions like "foo"[2], even if the pointer is only
a conditional constant.
llvm-svn: 10767
2004-01-12 04:29:41 +00:00
05fe6847a8
Implement SCCP/phitest.ll
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llvm-svn: 10763
2004-01-12 03:57:30 +00:00
49525f8cf4
Finegrainify namespacification
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llvm-svn: 10725
2004-01-09 06:02:20 +00:00
960707c335
Put all LLVM code into the llvm namespace, as per bug 109.
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llvm-svn: 9903
2003-11-11 22:41:34 +00:00
482202a601
Added LLVM project notice to the top of every C++ source file.
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Header files will be on the way.
llvm-svn: 9298
2003-10-20 19:43:21 +00:00
f0fc9be634
ADd support for the new varargs instructions
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llvm-svn: 9225
2003-10-18 05:56:52 +00:00
8b2bd4ed47
Fix spelling.
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llvm-svn: 9027
2003-10-10 17:57:28 +00:00
35e56e7372
Update comment
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llvm-svn: 8965
2003-10-08 16:56:11 +00:00
0bbbe5d4c8
Use a set to keep track of which edges have been noticed as executable already
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to avoid reprocessing PHI nodes needlessly. This speeds up the big bad PHI
testcase 43%: from 104.9826 to 73.5157s
llvm-svn: 8964
2003-10-08 16:55:34 +00:00
7324f7cd03
Minor fixes here and there
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llvm-svn: 8963
2003-10-08 16:21:03 +00:00
71ac22ffb5
Avoid building data structures we don't really need. This improves the runtime
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of a test that Bill Wendling sent me from 228.5s to 105s. Obviously there is
more improvement to be had, but this is a nice speedup which should be "felt"
by many programs.
llvm-svn: 8962
2003-10-08 15:47:41 +00:00
9c58cf6d03
Add support for the unwind instruction
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llvm-svn: 8408
2003-09-08 18:54:55 +00:00
df741d62de
Fix bug: SCCP/2003-08-26-InvokeHandling.ll
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llvm-svn: 8152
2003-08-27 01:08:35 +00:00
7eb05a170a
Spell `necessary' correctly.
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llvm-svn: 7944
2003-08-18 14:43:39 +00:00
8abcd56c74
DEBUG got moved to Support/Debug.h
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llvm-svn: 7492
2003-08-01 22:15:03 +00:00
7e270580c8
Fix bug: SCCP/2003-06-24-OverdefinedPHIValue.ll
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llvm-svn: 6883
2003-06-24 20:29:52 +00:00
373086db75
Hopefully, the final fix for `[Pp]ropogate'.
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llvm-svn: 6251
2003-05-20 21:01:22 +00:00
b02697210e
Handle va_arg instruction correctly
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llvm-svn: 6030
2003-05-08 02:50:13 +00:00
3c98276168
Fix major problem with PHI node traversal: rechecking PHIs should go into
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the visit function. The worklist is for when their lattice value changes.
llvm-svn: 5927
2003-04-25 03:35:10 +00:00
cccc5c76c8
Minor non-functional changes:
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* Spell propagate right
* Improve performance of phi node handling
* Delete using directive
* Other minor changes
llvm-svn: 5920
2003-04-25 02:50:03 +00:00
889f620841
Remove unnecesary &*'s
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llvm-svn: 5872
2003-04-23 16:37:45 +00:00
669c6cf459
Make sure to _delete_ memory allocated by worklists
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llvm-svn: 4523
2002-11-04 02:54:22 +00:00
632df28deb
Fix spelling of `propagate'.
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llvm-svn: 4423
2002-10-29 23:06:16 +00:00
820d971233
- Rename AnalysisUsage::preservesAll to getPreservesAll & preservesCFG to
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setPreservesCFG to be less confusing.
llvm-svn: 4255
2002-10-21 20:00:28 +00:00
bf3a099a62
Updates to work with recent Statistic's changes:
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* Renamed StatisticReporter.h/cpp to Statistic.h/cpp
* Broke constructor to take two const char * arguments instead of one, so
that indendation can be taken care of automatically.
* Sort the list by pass name when printing
* Make sure to print all statistics as a group, instead of randomly when
the statistics dtors are called.
* Updated ProgrammersManual with new semantics.
llvm-svn: 4002
2002-10-01 22:38:41 +00:00
dd6522e7a0
- Implement SCCP of getelementptr instructions
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- Implement SCCP of globals into ConstantExprs hopefully opening new
opportunities for more SCCP.
llvm-svn: 3555
2002-08-30 23:39:00 +00:00
dfb3a2cd07
Eliminated the MemAccessInst class, folding contents into GEP class.
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llvm-svn: 3487
2002-08-22 23:37:20 +00:00
0f4093938a
Remove extra #includes
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llvm-svn: 3322
2002-08-14 18:17:32 +00:00
6e1a1b1289
Remove support for unary operators
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llvm-svn: 3318
2002-08-14 17:53:45 +00:00
c8b7092e54
* Add support for different "PassType's"
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* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Add support for different "PassType's"
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Remove getPassName implementations from various subclasses
llvm-svn: 3113
2002-07-26 21:12:46 +00:00
b28b680155
*** empty log message ***
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llvm-svn: 3016
2002-07-23 18:06:35 +00:00
113f4f4609
MEGAPATCH checkin.
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For details, See: docs/2002-06-25-MegaPatchInfo.txt
llvm-svn: 2779
2002-06-25 16:13:24 +00:00
71cbd42b98
Use the new DEBUG(x) macro to allow debugging code to be enabled on the commandline
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llvm-svn: 2713
2002-05-22 17:17:27 +00:00
a482d52ff4
Fix bug: test/Regression/Transforms/SCCP/2002-05-21-InvalidSimplify.ll
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Improperly handling edges... by not marking them alive properly
llvm-svn: 2707
2002-05-22 16:07:20 +00:00
b710b1fb22
Fix bug: test/Regression/Transforms/SCCP/2002-05-20-MissedIncomingValue.ll
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That was causing a miscompilation of strtol/atoi plus others
llvm-svn: 2669
2002-05-20 20:48:03 +00:00
0b18c1d64e
Add support for printing out statistics information when -stats is added to
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the command line
llvm-svn: 2601
2002-05-10 15:38:35 +00:00
b4cfa7ff97
Merge all individual .h files into a single Scalar.h file
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llvm-svn: 2537
2002-05-07 20:03:00 +00:00
3d86d49604
Add #include no longer included by llvm/Transforms/Scalar/ConstantProp.h
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llvm-svn: 2517
2002-05-07 18:11:30 +00:00
d66a6e33e9
* Convert InstWorkList to vector instead of set, because on big programs it
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is empirically faster by a noticable margin, even though duplicates can
happen.
llvm-svn: 2511
2002-05-07 04:29:32 +00:00
940daedc22
Implement constant propogation of shift instructions
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llvm-svn: 2471
2002-05-06 03:01:37 +00:00
7b80b53ab9
Ok, really it only takes me 3 times to get this right!
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Now use #if 0 instead of #ifdef 0
llvm-svn: 2448
2002-05-02 21:49:50 +00:00
Chris Lattner