Implement a __WCHAR_UNSIGNED__ macro and use it to include WCHAR_MIN and
WCHAR_MAX in limits.h, thus solving the problem where the system header
thinks it knows better.

llvm-svn: 135455

Change the driver's logic about Objective-C runtimes: abstract out a
structure to hold inferred information, then propagate each invididual
bit down to -cc1. Separate the bits of "supports weak" an

Change the driver's logic about Objective-C runtimes: abstract out a
structure to hold inferred information, then propagate each invididual
bit down to -cc1. Separate the bits of "supports weak" and "has a native
ARC runtime"; make the latter a CodeGenOption.

The tool chain is still driving this decision, because it's the place that
has the required deployment target information on Darwin, but at least it's
better-factored now.

llvm-svn: 134453

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Don't define __CONSTANT_CFSTRINGS__ with -fno-constant-cfstrings issue.
Patch by Jean-Daniel Dupas.

llvm-svn: 134414

Rename objc_lifetime -> objc_ownership, and modify diagnostics to talk about 'ownership', not 'lifetime'.

rdar://9477613.

llvm-svn: 133779

Define __cplusplus to 201103L when in (non-GNU) C++0x mode.

llvm-svn: 133437

Unconditionally #define the ARC ownership qualifiers, instead of #defining
them only on Darwin tool chains.

llvm-svn: 133112

Automatic Reference Counting.

Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation c

Automatic Reference Counting.

Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.

llvm-svn: 133103

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__OBJC__ is also a standard predefined macro.

llvm-svn: 132855

The macros defined by the language standard are still available even when the
-undef flag is passed in. Also __ASSEMBLER__ with -x assembler-with-cpp. (Don't
ask.)

llvm-svn: 132708

Add a FIXME.

llvm-svn: 131108

Temporary preprocessor hack to get around the Microsoft __identifier(x) extension.
http://msdn.microsoft.com/en-us/library/hzc8ytsz(v=VS.100).aspx

Microsoft doc claims this is a C++/CLI feature but

Temporary preprocessor hack to get around the Microsoft __identifier(x) extension.
http://msdn.microsoft.com/en-us/library/hzc8ytsz(v=VS.100).aspx

Microsoft doc claims this is a C++/CLI feature but it is really always enabled.
This removes 2 error when parsing MFC code with clang.

llvm-svn: 131051

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Upgrade Microsoft's __int8, __int16, __int32 and __int64 types from builtin defines to real types.

Otherwise statements like:
__int64 var = __int64(0);

would be expanded to:
long long var = lon

Upgrade Microsoft's __int8, __int16, __int32 and __int64 types from builtin defines to real types.

Otherwise statements like:
__int64 var = __int64(0);

would be expanded to:
long long var = long long(0);

and fail to compile.

llvm-svn: 130369

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Move all of the logic for __DEPRECATED to the driver based on comments
from dgregor.

llvm-svn: 130066

Fix Clang's __DEPRECATED define to be controled by -Wdeprecated. This
matches GCC behavior which libstdc++ uses to limit #warning-based
messages about deprecation.

The machinery involves threading t

Fix Clang's __DEPRECATED define to be controled by -Wdeprecated. This
matches GCC behavior which libstdc++ uses to limit #warning-based
messages about deprecation.

The machinery involves threading this through a new '-fdeprecated-macro'
flag for CC1. The flag defaults to "on", similarly to -Wdeprecated. We
turn the flag off in the driver when the warning is turned off (modulo
matching some GCC bugs). We record this as a language option, and key
the preprocessor on the option when introducing the define.

A separate flag rather than a '-D' flag allows us to properly represent
the difference between C and C++ builds (only C++ receives the define),
and it allows the specific behavior of following -Wdeprecated without
potentially impacting the set of user-provided macro flags.

llvm-svn: 130055

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PR9772: Fix the definition of WINT_MIN and WINT_MAX on Linux -ffreestanding.

llvm-svn: 129907

Change Clang's __VERSION__ to include the same basic info as in clang -v.
- Please never ever ever ever write a tool that sniffs this.

llvm-svn: 128599

Preprocessor: Don't define __STDC__ in -traditional-cpp mode.

llvm-svn: 127933

Add 'OverridenFilesKeepOriginalName' field in SourceManager which if true the SourceManager
should report the original file name for contents of files that were overriden by other files,
otherwise it

Add 'OverridenFilesKeepOriginalName' field in SourceManager which if true the SourceManager
should report the original file name for contents of files that were overriden by other files,
otherwise it should report the name of the new file. Default is true.

Also add similar field in PreprocessorOptions and pass similar parameter in ASTUnit::LoadFromCommandLine.

llvm-svn: 127289

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Reimplement DefineTypeSize in terms of APInt. This eliminates some
magic integer arithmetic and allows it to work with types larger
than 64 bits.

llvm-svn: 126365

Preserve what the user passed to -include when emitting .d files. Fixes PR8974!

llvm-svn: 126334

Replace all uses of PathV1::makeAbsolute with PathV2::fs::make_absolute.

llvm-svn: 122340

Implement -cl-fast-relaxed-math

llvm-svn: 120880

Merge System into Support.

llvm-svn: 120297

now the FileManager has a FileSystemOpts ivar, stop threading
FileSystemOpts through a ton of apis, simplifying a lot of code.
This also fixes a latent bug in ASTUnit where it would invoke
methods on

now the FileManager has a FileSystemOpts ivar, stop threading
FileSystemOpts through a ton of apis, simplifying a lot of code.
This also fixes a latent bug in ASTUnit where it would invoke
methods on FileManager without creating one in some code paths
in cindextext.

llvm-svn: 120010

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Implement -working-directory.

When -working-directory is passed in command line, file paths are resolved relative to the specified directory.
This helps both when using libclang (where we can't requ

Implement -working-directory.

When -working-directory is passed in command line, file paths are resolved relative to the specified directory.
This helps both when using libclang (where we can't require the user to actually change the working directory)
and to help reproduce test cases when the reproduction work comes along.

--FileSystemOptions is introduced which controls how file system operations are performed (currently it just contains
the working directory value if set).
--FileSystemOptions are passed around to various interfaces that perform file operations.
--Opening & reading the content of files should be done only through FileManager. This is useful in general since
file operations will be abstracted in the future for the reproduction mechanism.

FileSystemOptions is independent of FileManager so that we can have multiple translation units sharing the same
FileManager but with different FileSystemOptions.

Addresses rdar://8583824.

llvm-svn: 118203

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