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3313 Commits

Author SHA1 Message Date
Dan Gohman
2d7bf8c073 Make LoopPass::getContainedPass return a LoopPass* instead of a Pass* 
and remove casts from all its callers.

llvm-svn: 110848
 2010-08-11 20:34:43 +00:00
Owen Anderson
0692635e68 Improve indentation. 
llvm-svn: 110778
 2010-08-11 04:24:25 +00:00
Dan Gohman
603e66618f When analyzing loop exit conditions combined with and and or, don't 
make any assumptions about when the two conditions will agree on when
to permit the loop to exit. This fixes PR7845.

llvm-svn: 110758
 2010-08-11 00:12:36 +00:00
Dan Gohman
7e49302e9a Rename and reorder the arguments to isImpliedCond, for consistency and clarity. 
llvm-svn: 110750
 2010-08-10 23:46:30 +00:00
Owen Anderson
a095d3fe73 Now that we're using ConstantRange to represent potential values, make use of that represenation to 
create constraints from comparisons other than eq/neq.

llvm-svn: 110742
 2010-08-10 23:20:01 +00:00
Devang Patel
17606414a4 Add missing argument. CreateCompositeTypeEx() users, please verify. 
llvm-svn: 110717
 2010-08-10 20:22:49 +00:00
Owen Anderson
a3a2b79f01 Switch over to using ConstantRange to track integral values. 
llvm-svn: 110714
 2010-08-10 20:03:09 +00:00
Devang Patel
9b12559c4f Do not forget debug info for enums. Use named mdnode to keep track of these types. 
llvm-svn: 110712
 2010-08-10 20:01:20 +00:00
Tobias Grosser
7b96737b7f RegionInfo: Do not assert if a BB is not part of the dominance tree. 
llvm-svn: 110665
 2010-08-10 09:54:35 +00:00
Devang Patel
84f48b5483 Handle TAG_constant for integers. 
llvm-svn: 110656
 2010-08-10 07:11:13 +00:00
Devang Patel
8d0c79694e Refactor. 
llvm-svn: 110607
 2010-08-09 21:39:24 +00:00
Owen Anderson
cdd7cdc49a Add ConstantRange information to the debugging output. 
llvm-svn: 110598
 2010-08-09 20:50:46 +00:00
Owen Anderson
f2fea95f2f Reapply r110396, with fixes to appease the Linux buildbot gods. 
llvm-svn: 110460
 2010-08-06 18:33:48 +00:00
Dan Gohman
da3f592fb3 Implement a proper getModRefInfo for va_arg. 
llvm-svn: 110458
 2010-08-06 18:24:38 +00:00
Dan Gohman
ec36b4cd9c Be more conservative in the face of volatile. 
llvm-svn: 110456
 2010-08-06 18:11:28 +00:00
Dan Gohman
a4a3f3b27b Fix a comment. 
llvm-svn: 110455
 2010-08-06 18:10:45 +00:00
Dan Gohman
1c3a757427 Move all the logic for function attributes and call attributes out of the 
AliasAnalysis base class and into BasicAliasAnalyais. This avoids confusion
about where such logic is happening when there are other AliasAnalysis
implementations present.

Move the logic for translating two-callsite getModRefInfo queries into
other AliasAnalysis queries out of BasicAliasAnalysis and into the
AliasAnalysis base class, as it is useful for other AliasAnalysis
implementations.

llvm-svn: 110421
 2010-08-06 01:25:49 +00:00
Owen Anderson
8ec30386ee Fix botched revert. 
llvm-svn: 110416
 2010-08-06 00:36:20 +00:00
Owen Anderson
aadd8a89ca Revert r110396 to fix buildbots. 
llvm-svn: 110410
 2010-08-06 00:23:35 +00:00
Dan Gohman
c2e608a099 Fix 80-column violations. 
llvm-svn: 110401
 2010-08-05 23:48:14 +00:00
Owen Anderson
b9762c07cb Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static 
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
Dan Gohman
9135b410fe Implement AccessesArguments checking in the two-callsite form 
of BasicAA::getModRefInfo. This allows BasicAA to say that two
memset calls to non-aliasing memory locations don't interfere.

llvm-svn: 110393
 2010-08-05 23:34:50 +00:00
Dan Gohman
db40449189 Yes, we can do better, but this is not the place for it. 
llvm-svn: 110391
 2010-08-05 23:23:32 +00:00
Owen Anderson
86690fa988 Add the beginnings of infrastructure for range tracking. 
llvm-svn: 110388
 2010-08-05 22:59:19 +00:00
Owen Anderson
68ee87e057 Split the tag and value members of LVILatticeVal in preparation for expanding the lattice to something that won't fit in two bits. 
llvm-svn: 110383
 2010-08-05 22:10:46 +00:00
Dan Gohman
7260387710 Fix memdep's code for reasoning about dependences between two calls. A Ref 
response from getModRefInfo is not useful here. Instead, check for identical
calls only in the NoModRef case.

Reapply r110270, and strengthen it to compensate for the memdep changes.
When both calls are readonly, there is no dependence between them.

llvm-svn: 110382
 2010-08-05 22:09:15 +00:00
Dan Gohman
c42ed0aa91 Revert r110270 for now. It appears to uncover a memdep bug. 
llvm-svn: 110293
 2010-08-05 00:43:10 +00:00
Dan Gohman
fc6b043376 The trouble with testing for "ModRef" and "NoModRef" is that 
one is a suffix of the other, and FileCheck accepts superstrings.
Adjust the output to avoid this problem.

llvm-svn: 110280
 2010-08-04 23:37:55 +00:00
Dan Gohman
dcb6099f9e The two-callsite form of AliasAnalysis::getModRefInfo is documented 
to return Ref if the left callsite only reads memory read or written
by the right callsite; fix BasicAliasAnalysis to implement this.

Add AliasAnalysisEvaluator support for testing the two-callsite
form of getModRefInfo.

llvm-svn: 110270
 2010-08-04 22:56:29 +00:00
Dan Gohman
bafce59252 Fix a minor bug which resulted in intermediate calculations 
using wider types than are necessary.

llvm-svn: 110241
 2010-08-04 19:52:50 +00:00
Torok Edwin
967fc5164f Add a missing function. 
llvm-svn: 110195
 2010-08-04 11:42:45 +00:00
Dan Gohman
aac19e4ffe Remove PointerAccessInfo, which nothing was using. 
llvm-svn: 110167
 2010-08-03 23:08:10 +00:00
Dan Gohman
a087b90950 Thread const correctness through a bunch of AliasAnalysis interfaces and 
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
Dan Gohman
3ea223305c The singular of "indices" is "index". 
llvm-svn: 110135
 2010-08-03 20:23:52 +00:00
Dan Gohman
b0d9b03b13 Delete an unused function. 
llvm-svn: 110134
 2010-08-03 20:20:56 +00:00
Dan Gohman
10d085dcba Make AliasAnalysis::getModRefInfo conservative in the face of volatility. 
llvm-svn: 110120
 2010-08-03 17:27:43 +00:00
Dan Gohman
03b02a1ee1 Fix a typo Devang noticed. 
llvm-svn: 110115
 2010-08-03 16:48:31 +00:00
Michael J. Spencer
5878996848 Fix CMake build 
llvm-svn: 110097
 2010-08-03 02:38:20 +00:00
Dan Gohman
6604a72154 Introduce a symbolic constant for ~0u for use with AliasAnalysis. 
llvm-svn: 110091
 2010-08-03 01:03:11 +00:00
Dan Gohman
e0489ffe8e Add a convenient form of AliasAnalysis::alias for the case where the sizes 
are unknown.

llvm-svn: 110090
 2010-08-03 00:56:30 +00:00
Dan Gohman
68ac0492a4 Make SCEVUnknown a CallbackVH, so that it can be notified directly 
of Value deletions and RAUWs, instead of relying on ScalarEvolution's
Scalars map being notified, as that's complicated at best, and
insufficient in general.

This means SCEVUnknown needs a non-trivial destructor, so introduce
a mechanism to allow ScalarEvolution to locate all the SCEVUnknowns.

llvm-svn: 110086
 2010-08-02 23:49:30 +00:00
Dan Gohman
9d80b87a4d Sketch up a preliminary Type-Based Alias Analysis implementation. 
llvm-svn: 110077
 2010-08-02 23:11:01 +00:00
Dan Gohman
abb2503036 Add a lint check for indirectbr with no successors. 
llvm-svn: 110074
 2010-08-02 23:06:43 +00:00
Devang Patel
f18faa5945 Add explicit constructors. Patch by Renato Golin. 
llvm-svn: 110072
 2010-08-02 22:51:46 +00:00
Dan Gohman
213f64b54c Fix namespace polution. 
llvm-svn: 110056
 2010-08-02 18:50:06 +00:00
Oscar Fuentes
4742c01c2a Prefix next' iterator operation with llvm::'. 
Fixes potential ambiguity problems on VS 2010.

Patch by nobled!

llvm-svn: 110029
 2010-08-02 06:00:15 +00:00
Owen Anderson
e1aed29cca Add an initial implementation of PHI translation for LazyValueInfo. This involves rolling back some 
of my earlier data structure improvements until I can ensure that there are no iterator invalidation problems.

llvm-svn: 109935
 2010-07-30 23:59:40 +00:00
Owen Anderson
4e6f48d705 Revert my last two patches to LVI, which recent changes have exposed a miscompilation in. 
llvm-svn: 109889
 2010-07-30 20:56:07 +00:00
Eric Christopher
6a1da7b4a5 Speculatively revert r109705 since it seems to be causing some build bot 
angst.

llvm-svn: 109718
 2010-07-29 01:25:38 +00:00
Dan Gohman
ea1486b53c Factor out some of the code for updating old SCEVUnknown values, and 
extend it to handle the case where multiple RAUWs affect a single
SCEVUnknown.

Add a ScalarEvolution unittest to test for this situation.

llvm-svn: 109705
 2010-07-29 00:17:55 +00:00