Release build: guard dump functions with "ifndef NDEBUG"

No functional change.

llvm-svn: 163344

Stop casting away const qualifier needlessly.

llvm-svn: 163258

Reduce use list thrashing by using DenseMap's find_as for maps with ValueHandle keys.

No functionality change.

llvm-svn: 159497

Have AliasSet::aliasesUnknownInst use pointer TBAA info when available

llvm-svn: 150249

Atomic load/store support in LICM.

llvm-svn: 137648

Minor simplification.

llvm-svn: 136202

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

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

Update this code to handle PartialAlias as MayAlias.

llvm-svn: 121508

Don't forget the TBAA info, if available.

llvm-svn: 118842

Teach LICM and AliasSetTracker about AccessesArgumentsReadonly.

llvm-svn: 118618

Reapply r116831 and r116839, converting AliasAnalysis to use
uint64_t, plus fixes for places I missed before.

llvm-svn: 116875

Revert r116831 and r116839, which are breaking selfhost builds.

llvm-svn: 116858

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

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

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

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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

Don't pass the raw invalid pointer used to represent conflicting
TBAA information to AliasAnalysis.

llvm-svn: 116751

Make AliasSetTracker TBAA-aware, enabling TBAA-enabled LICM.

llvm-svn: 116743

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, pas

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

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Now with fewer extraneous semicolons!

llvm-svn: 115996

Don't print two "0x" prefixes. Use a raw_ostream overload instead of llvm::format.

llvm-svn: 112479

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
b

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

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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
PR75

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

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more cleanup

llvm-svn: 112401

clean this up

llvm-svn: 112400