Add implementations of the MSVC barrier intrinsics

Summary:
These are deprecated in VS 2012 according to MSDN.  They don't actually
compile down to any code.  They prevent the compiler from reordering
memory accesses across the barrier, which is what a memory-clobbering
volatile asm does.

Reviewers: echristo

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1954

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192860 91177308-0d34-0410-b5e6-96231b3b80d8
Add the context that a function was created in as the context for the
function, not the context of the context.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192862 91177308-0d34-0410-b5e6-96231b3b80d8
Add support to the Clang driver for forwarding all of gfortran's flags
to GCC when asked to compile a fortran input.

This fixes a regression with essentially every Fortran compile since we
started rejecting unknown flags. Also moves a mis-classified gfortran
flag into the nicely documented set.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192867 91177308-0d34-0410-b5e6-96231b3b80d8
This is now passing. Uncomment and close out PR6281.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192869 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: update docs
update docs for no_sanitize_thread attribute and blacklist



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192872 91177308-0d34-0410-b5e6-96231b3b80d8
Follow-up to r192822: fix Clang assertion when building with -fexceptions

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192875 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unicode characters, trailing whitespace from test case


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192877 91177308-0d34-0410-b5e6-96231b3b80d8
[mips][msa] Added most of the remaining builtins

Includes:
and.v, bmnz.v, bmz.v, bnz.[bhwdv], bz.[bhwdv], cfcmsa, ctcmsa, fcaf,
fcor, fcueq, fcul[et], fcun, fcune, fsaf, fsueq, fsul[et], fsun, fsune, ftrunc
hadd_[su].[hwd], hsub_[su].[hwd], insert.[bhw], insve.[bhw], ld.[bhwd],
move.v, nor.v, or.v, srar.[bhwd], srari.[bhwd], srlr.[bhwd], srlri.[bhwd],
st.[bhwd], subsus_u.[bhwd], subsuu_s.[bhwd], vshf.[bhwd], xor.v



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192896 91177308-0d34-0410-b5e6-96231b3b80d8
[mips][msa] Update -mmsa help text and removed the hidden flag to better match conventions used by other targets



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192898 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Added -mfp64 and -mfp32 options.

These options specify 64-bit FP registers and 32-bit FP registers respectively.

When using -mfp32, the FPU has 16x double-precision registers overlapping with
the 32x single-precision registers (each double-precision register overlaps
two single-precision registers).

When using -mfp64, the FPU has 32x double-precision registers overlapping with
the 32x single-precision registers (each double-precision register overlaps
with one single-precision register and has an additional 32-bits).

MSA requires -mfp64.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192899 91177308-0d34-0410-b5e6-96231b3b80d8
Rename some functions for consistency.

Every other function in Redeclarable.h was using Decl instead of Declaration.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192900 91177308-0d34-0410-b5e6-96231b3b80d8
clang-cl: Add support for asm listings (/FA and /Fa)

This adds support for outputing the assembly to a file during compilation.
It does this by changing the compilation pipeling to not use the integrated
assembler, and keep the intermediate assembler file.

Differential Revision: http://llvm-reviews.chandlerc.com/D1946

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192902 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64] Add support for NEON scalar three register different instruction
class.  The instruction class includes the signed saturating doubling
multiply-add long, signed saturating doubling multiply-subtract long, and
the signed saturating doubling multiply long instructions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192909 91177308-0d34-0410-b5e6-96231b3b80d8
Consumed analysis: fix ICE in handling of loop source locations.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192911 91177308-0d34-0410-b5e6-96231b3b80d8
Fix missed exception spec checks and crashes

Delayed exception specification checking for defaulted members and virtual
destructors are both susceptible to mutation during iteration so we need to
process the worklists fully.

This resolves both accepts-invalid and rejects-valid issues and moreover fixes
potential invalid memory access as the contents of the vectors change during
iteration and recursive template instantiation.

This patch also adds two assertions at end of TU to ensure no specs are left
unchecked as was happenning before the fix, plus a test case from Marshall Clow
for the defaulted member crash extracted from the libcxx headers.

Reviewed by Richard Smith.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192914 91177308-0d34-0410-b5e6-96231b3b80d8
Make .asm a valid extension for assembly files

This is a common extension on Windows, and now clang will assemble them
instead of treating them as linker input which is the default for unknown
file types.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192919 91177308-0d34-0410-b5e6-96231b3b80d8
Revert "Fix missed exception spec checks and crashes"

The changes caused the sanitizer bot to hang:
  http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/2311

Needs investigation.

This reverts commit r192914.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192921 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-cxxabi] Error out on virtual function memptrs

These are uncommon and this is better than miscompiling.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192923 91177308-0d34-0410-b5e6-96231b3b80d8
Consumed analysis: update to previous test case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192926 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC migrator. In infering NS_ENUM/NS_OPTIONS
macros, prefer the typedef immediately following the
enum declaration to the one preceeding it.
// rdar://15200915


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192927 91177308-0d34-0410-b5e6-96231b3b80d8