cmake: Add LLVM_HOSTTRIPLE. For now, it is same as TARGET_TRIPLE.
llvm-svn: 160609

Apple LWG 2067: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3318.html#2067 .  This is the only actionable change that has been made to the C++ draft since C++11.  In general it has not been decided exactly how libc++ will track changes made to C++11.  New features and design changes will probably be #ifdef'd, especially if they are not backwards compatible.  Defects and 'dumb mistakes' are more likely to just be put in.  Decisions on telling one from the other will be made on a case by case basis.

llvm-svn: 160608

llvm-svn: 160607

llvm-svn: 160606

llvm-svn: 160605

llvm-svn: 160604

llvm-svn: 160603

r160529 that was subsequently reverted. The fix was to not call
GV->eraseFromParent() right before the caller does the same. The existing
testcases already caught this bug if run under valgrind.

llvm-svn: 160602

This pass no longer requires that the global pointer value be saved to the
stack or register since it uses bal instruction to compute branch distance.

llvm-svn: 160601

llvm-svn: 160600

llvm-svn: 160599

llvm-svn: 160598

Test case will be added later when long branch patch is checked in.

llvm-svn: 160597

to returned by expressions, by removing the
__cxa_atexit call that would normally cause these
objects to be destroyed.  This also prevents many
errors of the form

Couldn't rewrite one of the arguments of a function call
error: Couldn't materialize struct: Structure hasn't been laid out yet

<rdar://problem/11309402>

llvm-svn: 160596

by index.  This is useful if the user does not document all arguments, and we
can't find a particular argument by index via :nth-of-type() CSS selector.

llvm-svn: 160595

llvm-svn: 160594

llvm-svn: 160593

llvm-svn: 160592

(lldb) file hello\ world

correctly.
<rdar://problem/11093911>

llvm-svn: 160591

llvm-svn: 160590

baby steps toward fixing some problems with inbound GEPs that overflow, as discussed 2 months ago or so.
Make sure we do not emit index computations with NSW flags so that we dont get an undef value if the GEP overflows

llvm-svn: 160589

branch address printing in the x86 disassembler.

<rdar://problem/11925357>

llvm-svn: 160588

move the bounds checking pass to the instrumentation folder, where it belongs. I dunno why in the world I dropped it in the Scalar folder in the first place.
No functionality change.

llvm-svn: 160587

Under AAPCS, long double is the same as double, which means it should be
allowed as part of a homogeneous aggregate.

llvm-svn: 160586

llvm-svn: 160585

Remove unused private member variable uncovered by the recent changes to clang's -Wunused-private-field.

llvm-svn: 160584

Remove unused private member variables uncovered by the recent changes to clang's -Wunused-private-field.

llvm-svn: 160583

llvm-svn: 160582

llvm-svn: 160581

llvm-svn: 160580

llvm-svn: 160579

Add "vAttachOrWait" to debugserver, so you can implement "attach to the process if it exists OR wait for it" without race conditions.  Use that in lldb.

llvm-svn: 160578

HTML fragment.

For testing, c-index-test now has even more output:
* HTML rendering of a comment
* comment AST tree dump in S-expressions like Comment::dump(), but implemented
* with libclang APIs.

llvm-svn: 160577

llvm-svn: 160576

LiveRangeEdit::foldAsLoad() can eliminate a register by folding a load
into its only use. Only do that when the load is safe to move, and it
won't extend any live ranges.

This fixes PR13414.

llvm-svn: 160575

llvm-svn: 160574

assembly.  

By default, we don't emit IR for MS-style inline assembly (see r158833 as to 
why).  This is strictly for testing purposes and should not be enabled with the
expectation that things will work.  This is a temporary flag and will be removed
once MS-style inline assembly is fully supported.

llvm-svn: 160573

CI's name, and then used the StringRef pointing at its old name. I'm
fixing it by storing the name in a std::string, and hoisting the
renaming logic to happen always. This is nicer anyways as it will allow
the upgraded IR to have the same names as the input IR in more cases.

Another bug found by AddressSanitizer. Woot.

llvm-svn: 160572

PHIElimination splits critical edges when it predicts it can resolve
interference and eliminate copies. It doesn't split the edge if the
interference wouldn't be resolved anyway because the phi-use register is
live in the critical edge anyway.

Teach PHIElimination to split loop exiting edges with interference, even
if it wouldn't resolve the interference. This removes the necessary
copies from the loop, which is still an improvement from injecting the
copies into the loop.

The test case demonstrates the improvement. Before:

LBB0_1:
  cmpb  $0, (%rdx)
  leaq  1(%rdx), %rdx
  movl  %esi, %eax
  je  LBB0_1

After:

LBB0_1:
  cmpb  $0, (%rdx)
  leaq  1(%rdx), %rdx
  je  LBB0_1

  movl  %esi, %eax

llvm-svn: 160571

No longer assuming the number of prototype arguments is always less than the number of formal parameters for a variadic function call.

llvm-svn: 160570