ff510a58c2
Revert previous patch. Still breaking things.
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llvm-svn: 30698
2006-10-03 07:26:07 +00:00
7cb6809c25
Another attempt at making ArgPromotion smarter. This patch no longer breaks Burg.
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llvm-svn: 30657
2006-09-28 23:02:22 +00:00
9482cc5b16
revert previous two patches. They cause miscompilation of MultiSource/Applications/Burg
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llvm-svn: 30397
2006-09-15 17:24:45 +00:00
edadd3faee
Revert my previous work on ArgumentPromotion. Further investigation has revealed these
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changes to be incorrect. They just weren't showing up in any of our current testcases.
llvm-svn: 30385
2006-09-15 05:22:51 +00:00
19b80e76df
Make ArgumentPromotion handle recursive functions that pass pointers in their recursive calls.
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llvm-svn: 30057
2006-09-02 21:19:44 +00:00
c2d3d3112e
eliminate RegisterOpt. It does the same thing as RegisterPass.
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llvm-svn: 29925
2006-08-27 22:42:52 +00:00
c597b8a55e
Make iostream #inclusion explicit
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llvm-svn: 25514
2006-01-22 23:32:06 +00:00
d0525a29d1
Preserve calling conventions when doing IPO
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llvm-svn: 21798
2005-05-09 01:05:50 +00:00
324d2eedb2
preserve the tail marker
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llvm-svn: 21734
2005-05-06 06:46:58 +00:00
b1c9317bb4
Remove trailing whitespace
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llvm-svn: 21427
2005-04-21 23:48:37 +00:00
531f9e92d4
This mega patch converts us from using Function::a{iterator|begin|end} to
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using Function::arg_{iterator|begin|end}. Likewise Module::g* -> Module::global_*.
This patch is contributed by Gabor Greif, thanks!
llvm-svn: 20597
2005-03-15 04:54:21 +00:00
46fa04b531
Fix VS warnings.
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llvm-svn: 19382
2005-01-08 19:45:31 +00:00
9fa7f0ae0a
Remove debugging code
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llvm-svn: 17719
2004-11-13 23:32:53 +00:00
244031d306
Argument promotion transforms functions to unconditionally load their
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argument pointers. This is only valid to do if the function already
unconditionally loaded an argument or if the pointer passed in is known
to be valid. Make sure to do the required checks.
This fixed ArgumentPromotion/control-flow.ll and the Burg program.
llvm-svn: 17718
2004-11-13 23:31:34 +00:00
4f2cf030e8
'Pass' should now not be derived from by clients. Instead, they should derive
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from ModulePass. Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.
llvm-svn: 16436
2004-09-20 04:48:05 +00:00
9864df96ba
Add comment
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llvm-svn: 16400
2004-09-19 01:05:16 +00:00
37b6c4f2d2
Convert this pass to be a CallGraphSCCPass instead of a Pass, which eliminates
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the worklist and makes it more efficient. This does not change functionality
at all.
llvm-svn: 16390
2004-09-18 00:34:13 +00:00
5065b240c8
Fix typo in comment
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llvm-svn: 16384
2004-09-17 03:58:39 +00:00
7c16caa336
Changes For Bug 352
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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
83cae64faf
bug 122:
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- Excise dead CPR procesing.
llvm-svn: 14944
2004-07-18 00:23:51 +00:00
1c676f76b6
Make order of argument addition deterministic. In particular, the layout
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of ConstantInt objects in memory used to determine which order arguments
were added in in some cases.
llvm-svn: 14276
2004-06-21 00:07:58 +00:00
254f8f8ad5
Fairly substantial changes to update the alias analysis we are querying as
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we make the transformation. This allows us to use interprocedural alias
analyses successfully.
llvm-svn: 13691
2004-05-23 21:21:17 +00:00
fe6f2e3e80
Implement ArgumentPromotion/aggregate-promote.ll
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This allows pointers to aggregate objects, whose elements are only read, to
be promoted and passed in by element instead of by reference. This can
enable a LOT of subsequent optimizations in the caller function.
It's worth pointing out that this stuff happens a LOT of C++ programs, because
objects in templates are generally passed around by reference. When these
templates are instantiated on small aggregate or scalar types, however, it is
more efficient to pass them in by value than by reference.
This transformation triggers most on C++ codes (e.g. 334 times on eon), but
does happen on C codes as well. For example, on mesa it triggers 72 times,
and on gcc it triggers 35 times. this is amazingly good considering that
we are using 'basicaa' so far.
llvm-svn: 12202
2004-03-08 01:04:36 +00:00
cc544e57f3
Implement: ArgumentPromotion/chained.ll
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llvm-svn: 12200
2004-03-07 22:52:53 +00:00
64b8d697ad
Fix another minor bug, exposed by perlbmk
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llvm-svn: 12198
2004-03-07 22:43:27 +00:00
6770842b67
Fix a minor bug and turn debug output into, well, debug output.
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llvm-svn: 12195
2004-03-07 21:54:50 +00:00
483ae01c9c
New LLVM pass: argument promotion. This version only handles simple scalar
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variables.
llvm-svn: 12193
2004-03-07 21:29:54 +00:00
Evan Cheng