5a2849e166
Fix uninitialized variable warning.
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Also move 'default' case next to a real case to help compiler optimize in
non-Debug builds.
No functionality change.
llvm-svn: 110435
2010-08-06 07:43:46 +00:00
f216f69ad9
Work in progress, cleaning up MergeFuncs.
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Further clean up the comparison function by removing overly generalized
"domains".
Remove all understanding of ELF aliases and simplify folding code and comments.
llvm-svn: 110434
2010-08-06 07:21:30 +00:00
bda59bd247
Revert r110396 to fix buildbots.
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llvm-svn: 110410
2010-08-06 00:23:35 +00:00
755aceb5d0
Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static
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ID member as the sole unique type identifier. Clean up APIs related to this change.
llvm-svn: 110396
2010-08-05 23:42:04 +00:00
4674dd6cf5
Give JumpThreading+LVI a long-form cl::opt so that it's easier to toggle the default.
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llvm-svn: 110384
2010-08-05 22:11:31 +00:00
9f2bca02d7
Experiments show that we can safely increase our unrolling threshold without unduly impacting code size, particularly
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since unrolling is not enabled at -Os.
llvm-svn: 110233
2010-08-04 18:32:46 +00:00
ba81fc16a5
Fix whitespace.
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llvm-svn: 110223
2010-08-04 17:43:57 +00:00
839c972102
Fix a comment.
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llvm-svn: 110181
2010-08-04 01:16:35 +00:00
5442c71f2e
Thread const correctness through a bunch of AliasAnalysis interfaces and
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eliminate several const_casts.
Make CallSite implicitly convertible to ImmutableCallSite.
Rename the getModRefBehavior for intrinsic IDs to
getIntrinsicModRefBehavior to avoid overload ambiguity with CallSite,
which happens to be implicitly convertible to bool.
llvm-svn: 110155
2010-08-03 21:48:53 +00:00
3619660529
Make instcombine set explicit alignments on load or store
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instructions with alignment 0, so that subsequent passes don't
need to bother checking the TargetData ABI size manually.
llvm-svn: 110128
2010-08-03 18:20:32 +00:00
ddaaf40d24
Add an atomic lowering pass
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llvm-svn: 110113
2010-08-03 16:19:16 +00:00
35e8a6209d
Use unary + instead of a separate local variable for working
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around std::min vs static const friction.
llvm-svn: 110112
2010-08-03 16:15:50 +00:00
8f306a779b
Re-apply the infamous r108614, with a fix pointed out by Dirk Steinke.
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llvm-svn: 110036
2010-08-02 09:32:13 +00:00
40b31ad3ee
Prefix `next' iterator operation with `llvm::'.
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Fixes potential ambiguity problems on VS 2010.
Patch by nobled!
llvm-svn: 110029
2010-08-02 06:00:15 +00:00
c1b09c8644
Fix a -Wreorder warning.
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llvm-svn: 110022
2010-08-02 05:43:46 +00:00
f52bd9cc33
Work in progress.
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Start cleaning up MergeFunctions to look more like the rest of LLVM. The
primary change here is to move the methods responsible for comparison into the
new FunctionComparator object. Some comments added. There's more to do.
llvm-svn: 110021
2010-08-02 05:23:03 +00:00
0b636a24c7
Speculatively revert r108614, "Another attempt at getting the clang self-host to
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like my instcombine patch.", in an attempt to fix Clang i386 bootstrap.
- Also PR7719.
llvm-svn: 109953
2010-07-31 19:51:11 +00:00
40f18838b7
The BlockExtractorPass() constructor was not reading the BlockFile and that was
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exactly what bugpoint expected it to do.
There was also only one user of
BlockExtractorPass(const std::vector<BasicBlock*> &B), so just remove it and
make BlockExtractorPass read BlockFile.
This fixes bugpoint's block extraction.
Nick, please review.
llvm-svn: 109936
2010-07-31 00:32:17 +00:00
d566d2c7b5
Move MaximumAlignment to be a member of the Value class.
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llvm-svn: 109891
2010-07-30 21:07:05 +00:00
299c6dfcbf
Add missing newline to debug statement.
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llvm-svn: 109886
2010-07-30 20:27:01 +00:00
0428a61e45
PR7750: !CExpr->isNullValue() only properly computes whether CExpr is nonnull
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if CExpr is a ConstantInt.
llvm-svn: 109773
2010-07-29 18:03:33 +00:00
62f0aac99d
simplify by using CallSite constructors; virtually eliminates CallSite::get from the tree
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llvm-svn: 109687
2010-07-28 22:50:26 +00:00
a7e5a24093
Define a maximum supported alignment value for load, store, and
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alloca instructions (constrained by their internal encoding),
and add error checking for it. Fix an instcombine bug which
generated huge alignment values (null is infinitely aligned).
This fixes undefined behavior noticed by John Regehr.
llvm-svn: 109643
2010-07-28 20:12:04 +00:00
9cd20bf792
When user code intentionally dereferences null, the alignment of the
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dereference is theoretically infinite. Put a cap on the computed
alignment to avoid overflow, noticed by John Regehr.
llvm-svn: 109596
2010-07-28 17:14:23 +00:00
f0084e1333
simplify
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llvm-svn: 109589
2010-07-28 15:52:43 +00:00
0a970698da
use Value* constructor of CallSite to create potentially improper site, and test that
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llvm-svn: 109581
2010-07-28 14:28:18 +00:00
f159085414
recommit simplification (r109502, backed out r109509); seems to innocent
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llvm-svn: 109510
2010-07-27 16:44:23 +00:00
5f91b7cf3e
back out this too to restore the bots
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llvm-svn: 109509
2010-07-27 15:56:07 +00:00
7b0a5fd2a5
simplify: CallSite::get --> CallSite constructor
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llvm-svn: 109506
2010-07-27 15:02:37 +00:00
7527b2ed5c
simplify
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llvm-svn: 109502
2010-07-27 13:31:22 +00:00
aa7f66ba67
Add an initial implementation of LazyValueInfo updating for JumpThreading. Disabled for now.
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llvm-svn: 109424
2010-07-26 18:48:03 +00:00
0141c13b22
Remove LCSSA's bogus dependence on LoopSimplify and LoopSimplify's bogus
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dependence on DominanceFrontier. Instead, add an explicit DominanceFrontier
pass in StandardPasses.h to ensure that it gets scheduled at the right
time.
Declare that loop unrolling preserves ScalarEvolution, and shuffle some
getAnalysisUsages.
This eliminates one LoopSimplify and one LCCSA run in the standard
compile opts sequence.
llvm-svn: 109413
2010-07-26 18:11:16 +00:00
a7908ae369
Preserve ScalarEvolution in the loop unroller.
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llvm-svn: 109412
2010-07-26 18:02:06 +00:00
65b257c9d2
Use DominatorTree::properlyDominates instead of dominates with an
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explicit inequality check.
llvm-svn: 109401
2010-07-26 17:37:36 +00:00
31f73ef210
A block dominates itself, by definition.
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llvm-svn: 109400
2010-07-26 17:35:32 +00:00
7bc0443f2b
Revert this because we can't clone cyclic MDNodes which are creating during a
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build of llvm-gcc.
llvm-svn: 109355
2010-07-24 20:54:02 +00:00
14b69d59dd
Whether function-local or not, a MDNode may reference a Function in which case
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it needs to be mapped to refer to the function in the new module, not the old
one. Fixes PR7700.
llvm-svn: 109353
2010-07-24 19:43:25 +00:00
5fa3813329
Speculatively revert 109117
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llvm-svn: 109132
2010-07-22 18:44:00 +00:00
59f9970ba5
keep in 80 cols
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llvm-svn: 109122
2010-07-22 17:18:03 +00:00
fac440cfb6
Map MDNode correctly.
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A non function local MDNode can have an operand which is cloned by MapValue().
llvm-svn: 109117
2010-07-22 16:35:00 +00:00
dde79d8f1a
mass elimination of reliance on automatic iterator dereferencing
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llvm-svn: 109103
2010-07-22 13:36:47 +00:00
84012a93ef
simplify
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llvm-svn: 109101
2010-07-22 13:07:39 +00:00
b8686360a1
do not access arguments via low-level interface, do not multiply dereference use_iterators
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llvm-svn: 109100
2010-07-22 13:04:32 +00:00
10bb1f5462
pass dereferenced iterator to dyn_cast
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llvm-svn: 109099
2010-07-22 11:48:35 +00:00
36f25dfd33
pass dereferenced iterator to dyn_cast
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llvm-svn: 109098
2010-07-22 11:43:44 +00:00
3e44ea1917
undo 80 column trespassing I caused
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llvm-svn: 109092
2010-07-22 10:37:47 +00:00
2637cc1a38
Make NamedMDNode not be a subclass of Value, and simplify the interface
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for creating and populating NamedMDNodes.
llvm-svn: 109061
2010-07-21 23:38:33 +00:00
a57b97e7e7
Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
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llvm-svn: 109045
2010-07-21 22:09:45 +00:00
afbe4a7a10
Make this code a little more readable.
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llvm-svn: 108968
2010-07-20 23:49:44 +00:00
7373bd9973
Use DebugLocs instead of MDNodes.
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llvm-svn: 108967
2010-07-20 23:49:05 +00:00
Nick Lewycky