e669884749
Preserve the DominanceFrontier analysis in the LoopDeletion pass.
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llvm-svn: 65359
2009-02-24 01:21:53 +00:00
e591411fd6
LoopDeletion needs to inform ScalarEvolution when a loop is deleted,
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so that ScalarEvolution doesn't hang onto a dangling Loop*, which
could be a problem if another Loop happens to get allocated at the
same address.
llvm-svn: 65323
2009-02-23 17:10:29 +00:00
7f39e2d85a
Change create*Pass factory functions to return Pass* instead of
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LoopPass*.
- Although less precise, this means they can be used in clients
without RTTI (who would otherwise need to include LoopPass.h, which
eventually includes things using dynamic_cast). This was the
simplest solution that presented itself, but I am happy to use a
better one if available.
llvm-svn: 58010
2008-10-22 23:32:42 +00:00
a79db30d28
Tidy up several unbeseeming casts from pointer to intptr_t.
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llvm-svn: 55779
2008-09-04 17:05:41 +00:00
abd8f41c81
Use use_empty() instead of getNumUses(), avoiding a use list traversal.
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llvm-svn: 52651
2008-06-23 23:23:49 +00:00
f4aece5976
Remove debugging code.
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llvm-svn: 51666
2008-05-29 08:15:48 +00:00
ad5f211b48
Clean ups for loop deletion based on Chris' feedback.
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Also, use SCEV to determine the trip count of the loop, which is more powerful
and accurate that Loop::getTripCount.
llvm-svn: 51179
2008-05-16 04:32:45 +00:00
d78c400b5b
Clean up the use of static and anonymous namespaces. This turned up
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several things that were neither in an anonymous namespace nor static
but not intended to be global.
llvm-svn: 51017
2008-05-13 00:00:25 +00:00
829046b0b4
Improve pass documentation and comments.
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Patch by Matthijs Kooijman!
llvm-svn: 50861
2008-05-08 17:46:35 +00:00
0e1ab4a9be
We need to update PHIs containing the exiting block, not the exit block. We really should come up with better names for these.
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llvm-svn: 50770
2008-05-06 20:55:16 +00:00
0ced13ccd9
This condition got inverted accidentally.
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llvm-svn: 50473
2008-04-30 07:16:33 +00:00
e674600266
A lot of cleanups and documentation improvements, as well as a few corner case fixes. Most
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of this was suggested by Chris.
llvm-svn: 50441
2008-04-29 20:59:33 +00:00
2306a1e098
Rename DeadLoopElimination to LoopDeletion, part 2.
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llvm-svn: 50437
2008-04-29 20:06:54 +00:00
e9f05bd1f0
Rename DeadLoopElimination to LoopDeletion, part one.
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llvm-svn: 50436
2008-04-29 19:58:07 +00:00
Dan Gohman