Owen Anderson
6c2f7512a6
Make Loop able to verify that it is in LCSSA-form, and have the LCSSA pass assert
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on this.
llvm-svn: 28738
2006-06-09 18:33:30 +00:00
Owen Anderson
0d9583aa41
Update some comments, and expose LCSSAID in preparation for having other passes
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require LCSSA.
llvm-svn: 28734
2006-06-08 20:02:53 +00:00
Owen Anderson
04f6f0775a
Fix some formatting, and use inLoop() when appropriate.
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llvm-svn: 28694
2006-06-06 04:36:36 +00:00
Owen Anderson
dc8495f4ad
Stop a memory leak, and update some comments.
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llvm-svn: 28693
2006-06-06 04:28:30 +00:00
Owen Anderson
4343713be4
Some more clean-up, and squash an IDF-Phi related bug.
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llvm-svn: 28680
2006-06-04 00:55:19 +00:00
Owen Anderson
1a72d98dd2
Various clean-ups suggested by Chris.
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llvm-svn: 28678
2006-06-04 00:02:23 +00:00
Owen Anderson
b83c3beb44
Fix a bug in Phi-noded insertion. Also, update some comments to reflect what's
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actually going on.
llvm-svn: 28677
2006-06-03 23:22:50 +00:00
Owen Anderson
1b0cd45469
Remove a FIXME that was fixed with my last patch.
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llvm-svn: 28619
2006-06-01 06:07:40 +00:00
Owen Anderson
facd63d07c
More cleanups. Also, add a special case for updating PHI nodes, and
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reimplement getValueDominatingFunction to walk the DominanceTree rather than
just searching blindly.
llvm-svn: 28618
2006-06-01 06:05:47 +00:00
Owen Anderson
aae280d83c
Extract a huge loop into a helper method. Fix a few iterator-invalidation bugs.
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llvm-svn: 28599
2006-05-31 20:55:06 +00:00
Owen Anderson
d46a77c3c8
Add Use replacement. Assuming there is nothing horribly wrong with this, LCSSA
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is now theoretically feature-complete. It has not, however, been thoroughly
test, and is still considered experimental.
llvm-svn: 28529
2006-05-29 01:00:00 +00:00
Owen Anderson
a857559867
Major think-o. Iterate over all live out-of-loop values, and perform the
...
other calculations on each individually, rather than trying to delay it and do
them all at the end.
llvm-svn: 28527
2006-05-28 19:33:28 +00:00
Owen Anderson
703f6baab0
Make LCSSA insert proper Phi nodes throughout the rest of the CFG by computing
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the iterated Dominance Frontier of the loop-closure Phi's. This is the
second phase of the LCSSA pass. The third phase (coming soon) will be to
update all uses of loop variables to use the loop-closure Phi's instead.
llvm-svn: 28524
2006-05-27 18:47:11 +00:00
Owen Anderson
1843c1ee17
A few small clean-ups, and the addition of an LCSSA statistic.
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llvm-svn: 28512
2006-05-27 00:31:37 +00:00
Owen Anderson
d706fc78b2
Fix a copy-and-paste-o that would break some compilers.
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llvm-svn: 28507
2006-05-26 21:19:17 +00:00
Owen Anderson
2414055ac6
Clean up and refactor LCSSA a bunch. It should also run faster now, though
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there's still a lot of work to be done on it.
llvm-svn: 28506
2006-05-26 21:11:53 +00:00
Owen Anderson
93098cfc4c
Skeletal LCSSA pass. This is currently non-functional. Expect functionality
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and documentation updates soo.
llvm-svn: 28495
2006-05-26 13:58:26 +00:00
