declaration is a reference. rdar://10749990

llvm-svn: 149733

llvm-svn: 149732

Suppress the used-but-not-defined warning for static data members while I look into a rather nasty bug in the new odr-use marking code.

llvm-svn: 149731

llvm-svn: 149730

  The recent support for potential constant expressions exposed a bug in the
  implementation of libstdc++4.6, where numeric_limits<int>::min() is defined
  as (int)1 << 31, which isn't a constant expression. Disable the 'constexpr
  function never produces a constant expression' error inside system headers
  to compensate.

llvm-svn: 149729

llvm-svn: 149728

They are not used any more. Simply use SlotIndex() to get an invalid
index.

llvm-svn: 149727

llvm-svn: 149726

llvm-svn: 149725

llvm-svn: 149724

llvm-svn: 149723

llvm-svn: 149722

Idea by Jean-Daniel Dupas.

llvm-svn: 149721

Remove __attribute__((weak)) on function prototype.  It has a different meaning on prototypes then it does on definitions.  It is not needed on the prototype and causes build failures for static codegen

llvm-svn: 149720

llvm-svn: 149719

Still left: explicit captures in lambdas need to cause implicit capture, and I need to take a look at the diagnostics for some cases.

llvm-svn: 149718

llvm-svn: 149717

llvm-svn: 149716

Calls that use register mask operands don't have implicit defs for
returned values.  The register mask operand handles the call clobber,
but it always behaves like a set of dead defs.

Add live implicit defs for any implicitly defined physregs that are
actually used.

llvm-svn: 149715

llvm-svn: 149714

When adding the {-1, -1} entry to the DFAStateInputTable, we
need to increment the index used to populate the DFAStateEntryTable.
Otherwise, the entry table will be off by one for each transition
after the {-1, -1} entry. PR11908.

llvm-svn: 149713

llvm-svn: 149712

__gxx_personality_v0 and __cxa_call_unexpected are complete on darwin and I *think* linux (not positive), but still unimplemented on arm.

llvm-svn: 149711

llvm-svn: 149710

llvm-svn: 149709

SelectionDAG has 4 different ways of passing physreg defs to users.
Collect all of the uses at the same time, and pass all of them to
MI->setPhysRegsDeadExcept() to mark the remaining defs dead.

The setPhysRegsDeadExcept() function will soon add the required
implicit-defs to instructions with register mask operands.

llvm-svn: 149708

llvm-svn: 149707

llvm-svn: 149706

llvm-svn: 149705

llvm-svn: 149704

size. Otherwise, we can end up with bogus layouts.

llvm-svn: 149703

Pushed optimization back up.  Crash disappeared with compiler upgrade.  Assumed to be due to compiler bug.

llvm-svn: 149702

llvm-svn: 149701

Fixing issues where synthetic children providers for STL containers std::list and std::map where not doing their job properly

llvm-svn: 149700

llvm-svn: 149698

template without a corresponding parameter pack, don't immediately
substitute the alias template. This is under discussion in the C++
committee, and may become ill-formed, but for now we match GCC.

llvm-svn: 149697

llvm-svn: 149696

Also, in C, call this a C11 extension rather than a GNU extension.

llvm-svn: 149695

The type-legalizer often scalarizes code. One of the common patterns is extract-and-truncate.
In this patch we optimize this pattern and convert the sequence into extract op of a narrow type.
This allows the BUILD_VECTOR dag optimizations to construct efficient shuffle operations in many cases.

llvm-svn: 149692

AddressSanitizer: simplify RoundUpToPowerOfTwo/clz; add a couple of CHECKs for real_X calls. Patch by timurrrr@google.com

llvm-svn: 149687