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path: root/lib/Frontend/InitPreprocessor.cpp
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2012-02-05Basic: import SmallString<> into clang namespaceDylan Noblesmith
(I was going to fix the TODO about DenseMap too, but that would break self-host right now. See PR11922.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149799 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-16Some improvements to the handling of C11 atomic types:David Chisnall
- Add atomic-to/from-nonatomic cast types - Emit atomic operations for arithmetic on atomic types - Emit non-atomic stores for initialisation of atomic types, but atomic stores and loads for every other store / load - Add a __atomic_init() intrinsic which does a non-atomic store to an _Atomic() type. This is needed for the corresponding C11 stdatomic.h function. - Enables the relevant __has_feature() checks. The feature isn't 100% complete yet, but it's done enough that we want people testing it. Still to do: - Make the arithmetic operations on atomic types (e.g. Atomic(int) foo = 1; foo++;) use the correct LLVM intrinsic if one exists, not a loop with a cmpxchg. - Add a signal fence builtin - Properly set the fenv state in atomic operations on floating point values - Correctly handle things like _Atomic(_Complex double) which are too large for an atomic cmpxchg on some platforms (this requires working out what 'correctly' means in this context) - Fix the many remaining corner cases git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148242 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-03Add a "Modules" language option, which subsumes the previousDouglas Gregor
"AutoModuleImport" preprocessor option and is tied to -fmodules. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147448 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-03Teach the frontend to provide the builtin preprocessor defines forChandler Carruth
-ffast-math. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147440 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-28Add a target hook for FLT_EVAL_METHOD and use it to set the value on x86 ↵Benjamin Kramer
with sse disabled. x87 math evaluates everything with 80 bits precision, so we have to set FLT_EVAL_METHOD to "2". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147311 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-23Give C11's __STDC_VERSION__ the final value.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147222 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-23Mass rename C1x references to C11. The name hasn't proliferated like "C++0x" ↵Benjamin Kramer
so this patch is surprisingly small. Also drop -Wc1x-extensions in favor of -Wc11-extensions. I don't think we need to keep this around for compatibility. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147221 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09Move a free function from the Frontend library into the Lex library asChandler Carruth
part of HeaderSearch. This function just normalizes filenames for use inside of a synthetic include directive, but it is used in both the Frontend and Serialization libraries so it needs a common home. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146227 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28Give __STDC_VERSION__ the value 201001L when we're in C1x mode. TheDouglas Gregor
committee hasn't set a value for __STDC_VERSION__ yet, so this is a placeholder. But at least it's > 199901L. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143245 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-19Define __STDC__ in -fms-extensions mode; defining it is consistent with gcc, ↵Eli Friedman
and not defining it causes the system headers on multiple platforms to break with -fms-extensions because they assume the lack of a definition of __STDC__ implies a traditional (pre-ANSI) preprocessor. PR10324 and <rdar://problem/10313809> . git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142554 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-27Remove the egregious hack that made Objective-C++ ARC work with olderDouglas Gregor
versions of libc++. Newer versions of libc++ know how to deal with ARC properly. Fixes <rdar://problem/10062179>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140651 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-25Rename Diagnostic to DiagnosticsEngine as per issue 5397David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20Remove __WCHAR_UNSIGNED__ and anything that used it.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140155 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-17Rename LangOptions::Microsoft to LangOptions::MicrosoftExt to make it clear ↵Francois Pichet
that this flag must be used only for Microsoft extensions and not emulation; to avoid confusion with the new LangOptions::MicrosoftMode flag. Many of the code now under LangOptions::MicrosoftExt will eventually be moved under the LangOptions::MicrosoftMode flag. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139987 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Add an experimental flag -fauto-module-import that automatically turnsDouglas Gregor
#include or #import direcctives of framework headers into module imports of the corresponding framework module. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139860 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Switch LangOptions over to a .def file that describes header of theDouglas Gregor
language options. Use that .def file to declare the LangOptions class and initialize all of its members, eliminating a source of annoying initialization bugs. AST serialization changes are next up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12Only predefine the __EXCEPTIONS macro if C++ exceptions are turned on.Douglas Gregor
Only predefine the OBJC_ZEROCOST_EXCEPTIONS macro if Objective-C exceptions are turned on. Fixes PR10910. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139496 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner
LLVM.h imports them into the clang namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-19Implement a __WCHAR_UNSIGNED__ macro and use it to include WCHAR_MIN andSean Hunt
WCHAR_MAX in limits.h, thus solving the problem where the system header thinks it knows better. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135455 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06Change the driver's logic about Objective-C runtimes: abstract out aJohn McCall
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134453 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-05Don't define __CONSTANT_CFSTRINGS__ with -fno-constant-cfstrings issue.Fariborz Jahanian
Patch by Jean-Daniel Dupas. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134414 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Rename objc_lifetime -> objc_ownership, and modify diagnostics to talk about ↵Argyrios Kyrtzidis
'ownership', not 'lifetime'. rdar://9477613. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133779 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Define __cplusplus to 201103L when in (non-GNU) C++0x mode.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133437 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Unconditionally #define the ARC ownership qualifiers, instead of #definingJohn McCall
them only on Darwin tool chains. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133112 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Automatic Reference Counting.John McCall
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10__OBJC__ is also a standard predefined macro.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-07The macros defined by the language standard are still available even when theNick Lewycky
-undef flag is passed in. Also __ASSEMBLER__ with -x assembler-with-cpp. (Don't ask.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132708 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-09Add a FIXME.Francois Pichet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-07Temporary preprocessor hack to get around the Microsoft __identifier(x) ↵Francois Pichet
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131051 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28Upgrade Microsoft's __int8, __int16, __int32 and __int64 types from builtin ↵Francois Pichet
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130369 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-23Move all of the logic for __DEPRECATED to the driver based on commentsChandler Carruth
from dgregor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130066 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-23Fix Clang's __DEPRECATED define to be controled by -Wdeprecated. ThisChandler Carruth
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130055 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21PR9772: Fix the definition of WINT_MIN and WINT_MAX on Linux -ffreestanding.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129907 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-31Change Clang's __VERSION__ to include the same basic info as in clang -v.Daniel Dunbar
- Please never ever ever ever write a tool that sniffs this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128599 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19Preprocessor: Don't define __STDC__ in -traditional-cpp mode.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127933 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Add 'OverridenFilesKeepOriginalName' field in SourceManager which if true ↵Argyrios Kyrtzidis
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127289 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24Reimplement DefineTypeSize in terms of APInt. This eliminates someChris Lattner
magic integer arithmetic and allows it to work with types larger than 64 bits. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126365 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23Preserve what the user passed to -include when emitting .d files. Fixes PR8974!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21Replace all uses of PathV1::makeAbsolute with PathV2::fs::make_absolute.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122340 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Implement -cl-fast-relaxed-mathPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120880 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29Merge System into Support.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120297 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23now the FileManager has a FileSystemOpts ivar, stop threadingChris Lattner
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120010 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Implement -working-directory.Argyrios Kyrtzidis
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118203 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-05Tell the VS headers that char16_t and char32_t are keywords, so yvals.h ↵Steven Watanabe
doesn't try to define them as typedefs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113126 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-03First test commit by Francois Pichet. _CRT_SECURE_CPP_OVERLOAD_SECURE_NAMES ↵Francois Pichet
is not a predefined macro, remove it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112953 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Predeclare class type_info in Microsoft mode, from Francois Pichet!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112478 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21Fix typo in comment.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111729 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03PR7795: Fix the definition of __WCHAR_MAX__ with -fshort-wchar.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110126 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03fix some undefined behavior, PR7779.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110116 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Introduce basic support for loading a precompiled preamble whileDouglas Gregor
reparsing an ASTUnit. When saving a preamble, create a buffer larger than the actual file we're working with but fill everything from the end of the preamble to the end of the file with spaces (so the lexer will quickly skip them). When we load the file, create a buffer of the same size, filling it with the file and then spaces. Then, instruct the lexer to start lexing after the preamble, therefore continuing the parse from the spot where the preamble left off. It's now possible to perform a simple preamble build + parse (+ reparse) with ASTUnit. However, one has to disable a bunch of checking in the PCH reader to do so. That part isn't committed; it will likely be handled with some other kind of flag (e.g., -fno-validate-pch). As part of this, fix some issues with null termination of the memory buffers created for the preamble; we were trying to explicitly NULL-terminate them, even though they were also getting implicitly NULL terminated, leading to excess warnings about NULL characters in source files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109445 91177308-0d34-0410-b5e6-96231b3b80d8
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