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111 Commits

Author SHA1 Message Date
Hal Finkel
485162e321 Have AliasSet::aliasesUnknownInst use pointer TBAA info when available 
llvm-svn: 150249
 2012-02-10 15:52:39 +00:00
Eli Friedman
e18709e5b2 Atomic load/store support in LICM. 
llvm-svn: 137648
 2011-08-15 20:52:09 +00:00
Eli Friedman
8c5930556f Minor simplification. 
llvm-svn: 136202
 2011-07-27 01:02:25 +00:00
Eli Friedman
2da127e60a Fix AliasSetTracker so that it doesn't make any assumptions about instructions it doesn't know about (like the atomic instructions I'm adding). 
llvm-svn: 136198
 2011-07-27 00:46:46 +00:00
Eli Friedman
d3b1c5df33 PR9604; try to deal with RAUW updates correctly in the AST. I'm not convinced 
it's completely safe to cache the AST across LICM runs even with this fix,
but this fix can't hurt.

llvm-svn: 129198
 2011-04-09 06:55:46 +00:00
Dan Gohman
9e03ffc789 Update this code to handle PartialAlias as MayAlias. 
llvm-svn: 121508
 2010-12-10 19:40:47 +00:00
Dan Gohman
97ce60bfa4 Don't forget the TBAA info, if available. 
llvm-svn: 118842
 2010-11-11 21:27:26 +00:00
Dan Gohman
1308376ebf Teach LICM and AliasSetTracker about AccessesArgumentsReadonly. 
llvm-svn: 118618
 2010-11-09 19:58:21 +00:00
Dan Gohman
befe1767ff Reapply r116831 and r116839, converting AliasAnalysis to use 
uint64_t, plus fixes for places I missed before.

llvm-svn: 116875
 2010-10-19 22:54:46 +00:00
Dan Gohman
de3c49438f Revert r116831 and r116839, which are breaking selfhost builds. 
llvm-svn: 116858
 2010-10-19 21:06:16 +00:00
Dan Gohman
03f86df2e5 Change AliasAnalysis and its clients to use uint64_t instead of unsigned 
for representing object sizes, for consistency with other parts of LLVM.

llvm-svn: 116831
 2010-10-19 18:00:02 +00:00
Owen Anderson
46990c17f7 Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which 
must be called in the pass's constructor.  This function uses static dependency declarations to recursively initialize
the pass's dependencies.

Clients that only create passes through the createFooPass() APIs will require no changes.  Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.

I have tested this with all standard configurations of clang and llvm-gcc on Darwin.  It is possible that there are problems
with the static dependencies that will only be visible with non-standard options.  If you encounter any crash in pass
registration/creation, please send the testcase to me directly.

llvm-svn: 116820
 2010-10-19 17:21:58 +00:00
Dan Gohman
8b332ffb8c Make the representation of AliasSets explicitly differentiate 
between "not known yet" and "known no tbaa info" so that it
can merge them properly.

llvm-svn: 116767
 2010-10-18 23:31:47 +00:00
Dan Gohman
6efd04961b Don't pass the raw invalid pointer used to represent conflicting 
TBAA information to AliasAnalysis.

llvm-svn: 116751
 2010-10-18 21:28:00 +00:00
Dan Gohman
64affb7be2 Make AliasSetTracker TBAA-aware, enabling TBAA-enabled LICM. 
llvm-svn: 116743
 2010-10-18 20:44:50 +00:00
Owen Anderson
63f757463c Begin adding static dependence information to passes, which will allow us to 
perform initialization without static constructors AND without explicit initialization
by the client.  For the moment, passes are required to initialize both their
(potential) dependencies and any passes they preserve.  I hope to be able to relax
the latter requirement in the future.

llvm-svn: 116334
 2010-10-12 19:48:12 +00:00
Owen Anderson
69cbf2e8b7 Now with fewer extraneous semicolons! 
llvm-svn: 115996
 2010-10-07 22:25:06 +00:00
Benjamin Kramer
b63bf8cf9b Don't print two "0x" prefixes. Use a raw_ostream overload instead of llvm::format. 
llvm-svn: 112479
 2010-08-30 14:46:53 +00:00
Chris Lattner
9e35d96cea two changes: 1) make AliasSet hold the list of call sites with an 
assertingvh so we get a violent explosion if the pointer dangles.

2) Fix AliasSetTracker::deleteValue to remove call sites with
   by-pointer comparisons instead of by-alias queries.  Using
   findAliasSetForCallSite can cause alias sets to get merged
   when they shouldn't, and can also miss alias sets when the
   call is readonly.

#2 fixes PR6889, which only repros with a .c file :(

llvm-svn: 112452
 2010-08-29 18:42:23 +00:00
Chris Lattner
c8947a83e3 when merging two alias sets, the result set is volatile if either 
of the sets is volatile.  We were dropping the volatile bit of the
merged in set, leading (luckily) to assertions in cases like 
PR7535.  I cannot produce a testcase that repros with opt, but this
is obviously correct.

llvm-svn: 112402
 2010-08-29 04:14:47 +00:00
Chris Lattner
741da104b4 more cleanup 
llvm-svn: 112401
 2010-08-29 04:13:43 +00:00
Chris Lattner
db816c533c clean this up 
llvm-svn: 112400
 2010-08-29 04:06:55 +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
Owen Anderson
aadd8a89ca Revert r110396 to fix buildbots. 
llvm-svn: 110410
 2010-08-06 00:23:35 +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
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
Gabor Greif
6dc7dec8c1 simplify 
llvm-svn: 109577
 2010-07-28 10:46:09 +00:00
Owen Anderson
f8addbb0a1 Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 
llvm-svn: 109045
 2010-07-21 22:09:45 +00:00
David Greene
dafe3d88d6 Change dbgs() back to errs() as Chris requested. 
llvm-svn: 92073
 2009-12-23 22:49:57 +00:00
David Greene
b7dde86ae2 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92029
 2009-12-23 19:27:59 +00:00
Chris Lattner
b6ecd40652 Remove the AliasAnalysis::getMustAliases method, which is dead. 
The hasNoModRefInfoForCalls isn't worth it as a filter because 
basicaa provides m/r info and everything chains to it, so remove
it.

llvm-svn: 89599
 2009-11-22 16:01:44 +00:00
Chris Lattner
7585c1f162 remove unneeded checks of isFreeCall 
llvm-svn: 85866
 2009-11-03 05:35:19 +00:00
Victor Hernandez
0f662a7acf Rename MallocFreeHelper as MemoryBuiltins 
llvm-svn: 85286
 2009-10-27 20:05:49 +00:00
Victor Hernandez
6c86b93663 Rename MallocHelper as MallocFreeHelper, since it now also identifies calls to free() 
llvm-svn: 85181
 2009-10-26 23:58:56 +00:00
Victor Hernandez
673c036bc7 Remove FreeInst. 
Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.

llvm-svn: 85176
 2009-10-26 23:43:48 +00:00
Nick Lewycky
2b8400628d Remove includes of Support/Compiler.h that are no longer needed after the 
VISIBILITY_HIDDEN removal.

llvm-svn: 85043
 2009-10-25 06:57:41 +00:00
Nick Lewycky
711c726c97 Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces. 
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.

llvm-svn: 85042
 2009-10-25 06:33:48 +00:00
Chris Lattner
ea2bfd7a9f eliminate the std::ostream form of WriteAsOperand and update clients. 
This also updates dominator related stuff.

llvm-svn: 79825
 2009-08-23 05:17:37 +00:00
Dan Gohman
173cfdc02f Fix some problems with ASTCallbackVH in its use as a DenseMap key. 
llvm-svn: 77696
 2009-07-31 18:21:48 +00:00
Dan Gohman
30dfed41b8 Use CallbackVH in AliasSetTracker to avoid getting stuck with 
dangling Value*s.

llvm-svn: 77623
 2009-07-30 20:21:41 +00:00
Dan Gohman
acc5d6eaae Make AliasAnalysis and related classes use 
getAnalysisIfAvailable<TargetData>().

llvm-svn: 77028
 2009-07-25 00:48:42 +00:00
Torok Edwin
f955a6ef49 llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640
 2009-07-14 16:55:14 +00:00
Torok Edwin
ae8a3ff177 assert(0) -> LLVM_UNREACHABLE. 
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379
 2009-07-11 20:10:48 +00:00
Devang Patel
94dbbb5768 getEntryFor() may invalidate DenseMap iterator. 
Walking an invalidated iterator is not a good idea.

llvm-svn: 68047
 2009-03-30 18:34:47 +00:00
Chris Lattner
d5dd4590b5 reimplement AliasSetTracker in terms of DenseMap instead of hash_map, 
hopefully no functionality change.

llvm-svn: 66398
 2009-03-09 05:11:09 +00:00
Zhou Sheng
1e7e86fec4 Ignore the debug info intrinsics when adding instructions into alias sets. 
llvm-svn: 65934
 2009-03-03 06:02:04 +00:00
Dan Gohman
e1f9be27bc Tidy up several unbeseeming casts from pointer to intptr_t. 
llvm-svn: 55779
 2008-09-04 17:05:41 +00:00
Chris Lattner
5a09a5fb88 Free and vaarg are not really volatile. 
llvm-svn: 51407
 2008-05-22 03:23:06 +00:00
Chris Lattner
821dc30131 Fix PR2346 by marking vaarg as volatile so that licm doesn't try to 
hoist them.

llvm-svn: 51356
 2008-05-20 22:05:28 +00:00
Dan Gohman
bab18cae46 Clean up the use of static and anonymous namespaces. This turned up 
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