Soon we won't need to compute live intervals for physical registers.

llvm-svn: 158865

Filter out physreg candidates with regunit interferrence.
Also compute regmask interference more efficiently.

llvm-svn: 158864

Actually intercept free() to ensure that the deallocations caused by other functions directly calling it are routed to our allocator.
For the allocations that do not belong to any malloc zone check whether they're padded with a pointer to ASan's CFAllocator. If so, free the original (unpadded) pointer.
This should fix AddressSanitizerMac.NSURLDeallocation and issue 70.

llvm-svn: 158863

As Nadav pointed out the first implementation was obscure.

llvm-svn: 158862

llvm-svn: 158861

places.  I've turned this off for the GNU runtimes --- I don't know if
they support weak class import, but it's easy enough for them to opt in.

Also tweak a comment per review by Jordan.

llvm-svn: 158860

* Escape < characters in Doxygen comments as needed;
* Add \code...\endcode around code examples;
* Remove an incorrect use of Doxygen's \arg command.

llvm-svn: 158859

llvm-svn: 158858

That is a DenseMap iterator keyed by pointers, so the iteration order is
nondeterministic.

I would like to replace the DenseMap with an IndexedMap which doesn't
allow iteration.

llvm-svn: 158856

llvm-svn: 158855

Added test with sizeof conditions (relies on to-be-implemented functionality of CFG, discussion: http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20120507/057370.html)

llvm-svn: 158854

Now that this is a C-only warning, we can use "static" instead of "internal
linkage", which is a term developers are probably more familiar with.
This makes for a better warning message. The warning name was changed to match,
since "internal linkage" is not mentioned in the warning text anymore.

llvm-svn: 158853

* Many fixes for \brief summaries (adding some, and making others shorter);
* Don't try to explicit tell Doxygen a namespace name (and particularly
  don't get it wrong);
* Typo fix: instantitions -> instantiations;
* Slightly more use of \pre for documenting preconditions.

llvm-svn: 158852

Similar to r156661. This should be beneficial performance wise and
hopefully, resolve a RecursiveASTVisitor crash that we are seeing in the
wild, but are incapable of reproducing.

llvm-svn: 158851

This commits sets the grounds for more aggressive use after free
checking. We will use the Relinquished sate to denote that someone
else is now responsible for releasing the memory.

llvm-svn: 158850

llvm-svn: 158849

llvm-svn: 158847

that are generated by TableGen and are already available in
MipsGenRegisterInfo.inc. Suggested by Jakob Stoklund Olesen.

Also, fix bug in function DecodeAFGR64RegisterClass.

Patch by Vladimir Medic. 

llvm-svn: 158846

Remove unused ASTContext& arg in RawCommentList::addComment, as pointed out by Chandler in commit message for r158807.

llvm-svn: 158845

llvm-svn: 158844

llvm-svn: 158843

in microsoft mode. Fixes PR12701.

The code for this was already in 2 of the 3 branches of a
conditional and missing in the 3rd branch, so lift it above
the conditional.

llvm-svn: 158842

llvm-svn: 158841

This is supported by gcc and clang, but guarded by a macro for MSVC 2008.

The extern template declaration is not necessary but generally good
form. It can avoid extra instantiations of the template methods
defined inline.

The EXTERN_TEMPLATE_INSTANTIATION macro could probably be generalized to
handle multiple template parameters if someone thinks it's worthwhile.

llvm-svn: 158840

Add users of a MERGE_VALUE node to the worklist to process again when the node is removed.  Sorry, no test case.  Foudn it by inspection of the code

llvm-svn: 158839

llvm-svn: 158837

It's very easy for anonymous external linkage to propagate in C++ through
return types and parameter types. Likewise, it's possible that a template
containing an inline function is only used with parameters that have internal
linkage. Actually diagnosing where the internal linkage comes from is fairly
difficult (both to locate and then to print nicely). Finally, since we only
have one translation unit available, we can't even prove that any of this
violates the ODR.

This warning needs better-defined behavior in C++ before it can really go in.

Rewording of the C warning (which /is/ specified by C99) coming shortly.

llvm-svn: 158836

error was asserting on anything that included Windows.h.  MS-style inline asm is
still dropped, but at least now we're not completely silent about it.

llvm-svn: 158833

CreateEnumType doesn't participate in caching so the descriptor for the enum
gets recomputed for every reference of an element of an enum, only to get
discarded when it gets turned into an MDNode.

No functionality change except performance.

llvm-svn: 158832

Regunit live ranges are computed on demand, so when mi-sched calls
handleMove, some regunits may not have live ranges yet.

That makes updating them easier: Just skip the non-existing ranges. They
will be computed correctly from the rescheduled machine code when they
are needed.

llvm-svn: 158831

llvm-svn: 158830

replace usage of EmitGEPOffset() with TargetData::getIndexedOffset() when the GEP offset is known to be constant.
With this change, we avoid relying on the IR Builder to constant fold the operations.

No functionality change intended.

llvm-svn: 158829

change in behavior. // rdar://11671080

llvm-svn: 158828

llvm-svn: 158827

Rose and Richard Smith for catching these.

llvm-svn: 158826

llvm-svn: 158823

The test case for this will come with the PPC indexed preinc loads commit.

llvm-svn: 158822

llvm-svn: 158821

llvm-svn: 158820

llvm-svn: 158819