Fix "warning: fallthrough annotation does not directly precede switch label" in lambdas.

Summary: This patch fixes http://llvm.org/PR17864 - "warning: fallthrough annotation does not directly precede switch label" in lambdas.

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: rnk, cfe-commits

Differential Revision: http://reviews.llvm.org/D4258

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211599 91177308-0d34-0410-b5e6-96231b3b80d8
Use lowercase windows.h for mingw cross compilation.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211604 91177308-0d34-0410-b5e6-96231b3b80d8
Allow static_assert inside an anonymous union; fixes PR20021 as well as implements C++ Issue 1940.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211606 91177308-0d34-0410-b5e6-96231b3b80d8
Add new debug kind LocTrackingOnly.

Summary:
This new debug emission kind supports emitting line location
information in all instructions, but stops code generation
from emitting debug info to the final output.

This mode is useful when the backend wants to track source
locations during code generation, but it does not want to
produce debug info. This is currently used by optimization
remarks (-Rpass, -Rpass-missed and -Rpass-analysis).

When one of the -Rpass flags is used, the front end will enable
location tracking, only if no other debug option is enabled.

To prevent debug information from being generated, a new debug
info kind LocTrackingOnly causes DIBuilder::createCompileUnit() to
not emit the llvm.dbg.cu annotation. This blocks final code generation
from generating debug info in the back end.

Depends on D4234.

Reviewers: echristo, dblaikie

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4235

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211610 91177308-0d34-0410-b5e6-96231b3b80d8
Objective-C. When we use @selector(save:), etc. there may be more 
than one method with mismatched type of same selector name. 
clang issues a warning to point this out since it may cause 
undefined behavior. There are cases though that some APIs 
don't care about user methods and such warnings are perceived as 
noise. This patch allows users to add paren delimiters around
selector name to turn off such warnings. So, @selector((save:)) will
turn off the warning. It also provides 'fixit' so user knows 
what to do. // rdar://16458579


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211611 91177308-0d34-0410-b5e6-96231b3b80d8
Fix test added in r211610 so it doesn't race on output file creation.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211615 91177308-0d34-0410-b5e6-96231b3b80d8
[Driver][Mips] Support mips64-linux-gnuabi64 / mips64el-linux-gnuabi64 target triples.

The patch fixes the bug #19869.
http://llvm.org/bugs/show_bug.cgi?id=19869

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211619 91177308-0d34-0410-b5e6-96231b3b80d8
Simplify optimization-remark.c test following r211610

With LocTrackingOnly there's no longer a user-facing distinction so the NDEBUG
checks can go away. (Except maybe column info, but -verify only checks line
numbers anyway.)

Also add a RUN line to validate the traditional !LocTrackingOnly case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211622 91177308-0d34-0410-b5e6-96231b3b80d8
Add directory_iterator for (non-recursive) iteration of VFS directories

The API is based on sys::fs::directory_iterator, but it allows iterating
over overlays and the yaml-based VFS.  For now, it isn't used by
anything (except its tests).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211623 91177308-0d34-0410-b5e6-96231b3b80d8
Use appropriate default PIE settings for OpenBSD.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211624 91177308-0d34-0410-b5e6-96231b3b80d8
Disable the bits of r211623 that broke the bots

Part of my test seems to rely on iterator bits that I didn't implement,
at least in the gcc bots. Disabling while I investigate.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211625 91177308-0d34-0410-b5e6-96231b3b80d8
Correctly Load Mixed FP-GP Variadic Arguments for x86-64.

According to the x86-64 ABI, structures with both floating point and
integer members are split between floating-point and general purpose
registers, and consecutive 32-bit floats can be packed into a single
floating point register.

In the case of variadic functions these are stored to memory and the position
recorded in the va_list. This was already correctly implemented in
llvm.va_start.

The problem is that the code in clang for implementing va_arg was reading
floating point registers from the wrong location.

Patch by Thomas Jablin.

Fixes PR20018.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211626 91177308-0d34-0410-b5e6-96231b3b80d8
Fix missing C++ mode comment

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211630 91177308-0d34-0410-b5e6-96231b3b80d8
Add R600 builtin codegen.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211631 91177308-0d34-0410-b5e6-96231b3b80d8
Forgot to add file in r211631

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211632 91177308-0d34-0410-b5e6-96231b3b80d8
Fix test issues from r211623 and remove test-only API

1) missing iterator bits needed by libstdc++4.7
Using find_if was convenient, but since operator++ wasn't a good
interface anyway, I just replaced with a range-based for loop and
removed operator++ from the directory_iterator class.

2) stop relying on order of iterating real files

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211633 91177308-0d34-0410-b5e6-96231b3b80d8
Provide a better diagnostic when braces are put before the identifier.

When a user types:
  int [4] foo;
assume that the user means:
  int foo[4];

Update the information for 'foo' to prevent additional errors, and provide
a fix-it hint to move the brackets to the correct location.

Additionally, suggest parens for types that require it, such as:
  int [4] *foo;
to:
  int (*foo)[4];


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211641 91177308-0d34-0410-b5e6-96231b3b80d8
Merge handleDLLImportAttr and handleDLLExportAttr into one function.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211647 91177308-0d34-0410-b5e6-96231b3b80d8
MS ABI: Ignore dll attributes on partial template specializations

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211648 91177308-0d34-0410-b5e6-96231b3b80d8
Split tests for __if_exists out into their own file

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211649 91177308-0d34-0410-b5e6-96231b3b80d8