Chris Lattner
90ea78edba
If a block is made dead, make sure to promptly remove it.
...
llvm-svn: 11799
2004-02-24 16:09:21 +00:00
Chris Lattner
a2ab489135
Implement SimplifyCFG/switch_switch_fold.ll
...
This case occurs many times in various benchmarks, especially when combined
with the previous patch. This allows it to get stuff like:
if (X == 4 || X == 3)
if (X == 5 || X == 8)
and
switch (X) {
case 4: case 5: case 6:
if (X == 4 || X == 5)
llvm-svn: 11797
2004-02-24 07:23:58 +00:00
Chris Lattner
3cd98f054a
Rearrange code a bit
...
llvm-svn: 11793
2004-02-24 05:54:22 +00:00
Chris Lattner
6f4b45acf5
Implement: test/Regression/Transforms/SimplifyCFG/switch_create.ll
...
This turns code like this:
if (X == 4 | X == 7)
and
if (X != 4 & X != 7)
into switch instructions.
llvm-svn: 11792
2004-02-24 05:38:11 +00:00
Chris Lattner
e42732e75f
Implement test/Regression/Transforms/SimplifyCFG/UncondBranchToReturn.ll,
...
see the testcase for the reasoning.
llvm-svn: 11496
2004-02-16 06:35:48 +00:00
Chris Lattner
18d1f19fba
Implement SimplifyCFG/PhiEliminate.ll
...
Having a proper 'select' instruction would allow the elimination of a lot
of the special case cruft in this patch, but we don't have one yet.
llvm-svn: 11307
2004-02-11 03:36:04 +00:00
Chris Lattner
838b845781
The hasConstantReferences predicate always returns false.
...
llvm-svn: 11301
2004-02-11 01:17:07 +00:00
Chris Lattner
fae8ab3088
rename the "exceptional" destination of an invoke instruction to the 'unwind' dest
...
llvm-svn: 11202
2004-02-08 21:44:31 +00:00
Chris Lattner
df3c342a4c
Finegrainify namespacification
...
llvm-svn: 10727
2004-01-09 06:12:26 +00:00
Brian Gaeke
960707c335
Put all LLVM code into the llvm namespace, as per bug 109.
...
llvm-svn: 9903
2003-11-11 22:41:34 +00:00
John Criswell
482202a601
Added LLVM project notice to the top of every C++ source file.
...
Header files will be on the way.
llvm-svn: 9298
2003-10-20 19:43:21 +00:00
Misha Brukman
8b2bd4ed47
Fix spelling.
...
llvm-svn: 9027
2003-10-10 17:57:28 +00:00
Chris Lattner
04ecefe232
Eliminate support for the llvm.unwind intrinisic, using the Unwind instruction instead
...
llvm-svn: 8411
2003-09-08 19:44:26 +00:00
Chris Lattner
3f5823f131
Implement SimplifyCFG/InvokeEliminate.ll
...
llvm-svn: 8126
2003-08-24 18:36:16 +00:00
Chris Lattner
031340a551
Fix bug: SimplifyCFG/2003-08-17-BranchFoldOrdering.ll
...
llvm-svn: 7921
2003-08-17 19:41:53 +00:00
Chris Lattner
edc8c54e16
Fix bug: SimplifyCFG/2003-08-05-InvokeCrash.ll
...
Fix bug: SimplifyCFG/2003-08-05-MishandleInvoke.ll
llvm-svn: 7599
2003-08-05 16:27:44 +00:00
Chris Lattner
889f620841
Remove unnecesary &*'s
...
llvm-svn: 5872
2003-04-23 16:37:45 +00:00
Chris Lattner
569a57f9ff
Fix bug: SimplifyCFG/2003-03-07-DominateProblem.ll
...
llvm-svn: 5722
2003-03-07 18:13:41 +00:00
Chris Lattner
e54d214fcb
Implement CFGSimplify/PhiBlockMerge*.ll
...
llvm-svn: 5702
2003-03-05 21:36:33 +00:00
Chris Lattner
31116bafed
Implement testcase CFGSimplify/EqualPHIEdgeBlockMerge.ll
...
llvm-svn: 5699
2003-03-05 21:01:52 +00:00
Misha Brukman
632df28deb
Fix spelling of `propagate'.
...
llvm-svn: 4423
2002-10-29 23:06:16 +00:00
Chris Lattner
a704ac8a66
Changes to support PHINode::removeIncoming changes
...
llvm-svn: 4079
2002-10-08 21:36:33 +00:00
Chris Lattner
d6dcd8ec32
Fix bug: SimplifyCFG/2002-09-24-PHIAssertion.ll
...
llvm-svn: 3913
2002-09-24 16:09:17 +00:00
Chris Lattner
5325c5f340
Minor cleanups
...
llvm-svn: 3904
2002-09-24 00:09:26 +00:00
Chris Lattner
1cec4d90cd
Allow folding of basic blocks that have PHI nodes in them, fixing "bug":
...
test/Regression/Transforms/SimplifyCFG/2002-06-24-PHINode.ll
llvm-svn: 3128
2002-07-29 21:26:30 +00:00
Chris Lattner
fda72b1aad
*** empty log message ***
...
llvm-svn: 2777
2002-06-25 16:12:52 +00:00
Chris Lattner
466a049b67
Add implementation of SimplifyCFG
...
llvm-svn: 2701
2002-05-21 20:50:24 +00:00
