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2013-01-24Add a fixit for \U1234 -> \u1234.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173371 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24Handle universal character names and Unicode characters outside of literals.Jordan Rose
This is a missing piece for C99 conformance. This patch handles UCNs by adding a '\\' case to LexTokenInternal and LexIdentifier -- if we see a backslash, we tentatively try to read in a UCN. If the UCN is not syntactically well-formed, we fall back to the old treatment: a backslash followed by an identifier beginning with 'u' (or 'U'). Because the spelling of an identifier with UCNs still has the UCN in it, we need to convert that to UTF-8 in Preprocessor::LookUpIdentifierInfo. Of course, valid code that does *not* use UCNs will see only a very minimal performance hit (checks after each identifier for non-ASCII characters, checks when converting raw_identifiers to identifiers that they do not contain UCNs, and checks when getting the spelling of an identifier that it does not contain a UCN). This patch also adds basic support for actual UTF-8 in the source. This is treated almost exactly the same as UCNs except that we consider stray Unicode characters to be mistakes and offer a fixit to remove them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173369 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Don't check lines beginning with '#', since they could contain a path with ↵Bill Wendling
the unexpected word in them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173307 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Add some semantic checks for OpenCL. Variadic macros, VLAs and bitfields are ↵Joey Gouly
not supported. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172732 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Suppress all -Wunused-value warnings from macro body expansions.Matt Beaumont-Gay
This is inspired by a number of false positives in real code, including PR14968. I've added test cases reduced from these false positives to test/Sema/unused-expr.c, as well as corresponding test cases that pass the offending expressions as arguments to a no-op macro to ensure that we do warn there. This also removes my previous tweak from r166522/r166534, so that we warn on unused cast expressions in macro arguments. There were several test cases that were using -Wunused-value to test general diagnostic emission features; I changed those to use other warnings or warn on a macro argument expression. I stared at the test case for PR14399 for a while with Richard Smith and we believe the new test case exercises the same codepaths as before. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172696 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16No longer crashing with an assert when __has_include or __has_include_next ↵Aaron Ballman
is used outside of a preprocessor directive. This fixes PR14837. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172639 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09[PreprocessingRecord] A macro expansion can be reported out-of-order in ↵Argyrios Kyrtzidis
cases when there are macro expansions inside macro arguments where the arguments are not expanded in the same order as listed; don't assert that all macro expansions are in source order. rdar://12397063 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172018 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Make sure clang puts tokens from different files on separate lines in "-E ↵Eli Friedman
-P" mode. <rdar://problem/12774044> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171944 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Make __has_include a bit more resilient in the presence of macros. ↵Eli Friedman
<rdar://problem/12748859>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171939 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02s/CXX0X/CXX11/g, except for __GNU_EXPERIMENTAL_CXX0X__, and update a few ↵Richard Smith
nearby 'C++0x' comments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171372 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19[preprocessor] When "merging" macro argument tokens into one SLocEntry chunk,Argyrios Kyrtzidis
make sure they came from the same kind of FileIDs. Thanks to Abramo Bagnara for providing the test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170616 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-14[preprocessor] For errors at a function macro invocation, also includeArgyrios Kyrtzidis
a note about where the macro is defined. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170228 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12Don't warn about disabled macro expansion if we see the name of a ↵Richard Smith
function-like macro which isn't immediately followed by '('. FreeBSD's stdio.h #defines foo(x) to (foo)(x), apparently. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169960 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06Disable clang/test/Preprocessor/macro-multiline.c for now, while ↵NAKAMURA Takumi
investigating lit.ShUtil.parser. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169458 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-17Prevent premature macro expansion in __has_builtin, __has_feature,Andy Gibbs
__has_attribute, __has_extension, making them behave more akin to conventional macros. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168268 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-17Made the "expected string literal" diagnostic more expressiveAndy Gibbs
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168267 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-17Refactored duplicate string literal lexing code within Preprocessor, into aAndy Gibbs
common LexStringLiteral function. In doing so, some consistency problems have been ironed out (e.g. where the first token in the string literal was lexed with macro expansion, but subsequent ones were not) and also an erroneous diagnostic has been corrected. LexStringLiteral is complemented by a FinishLexStringLiteral function which can be used in the situation where the first token of the string literal has already been lexed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168266 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-17Fix handling of invalid uses of the __has_warning builtin macroAndy Gibbs
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168265 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-17Add missing features for misc x86 CPUs to CPU feature translation. Patch by ↵Eli Friedman
Jung-uk Kim. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168239 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-16CPP Output: Do not emit an enter file marker for the main file.Daniel Dunbar
- This diverges from gcc, and confuses tools (like dtrace) which track # line markers as a way to determine which content is in the context of the main file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168128 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Suppress elided variadic macro argument extension diagnostic for macros usingEli Friedman
the related comma pasting extension. In certain cases, we used to get two diagnostics for what is essentially one extension. This change suppresses the first diagnostic in certain cases where we know we're going to print the second diagnostic. The diagnostic is redundant, and it can't be suppressed in the definition of the macro because it points at the use of the macro, so we want to avoid printing it if possible. The implementation works by detecting constructs which look like comma pasting at the time of the definition of the macro; this information is then used when the macro is used. (We can't actually detect whether we're using the comma pasting extension until the macro is actually used, but we can detecting constructs which will be comma pasting if the varargs argument is elided.) <rdar://problem/12292192> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167907 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Add clang support of RTM from TSXMichael Liao
- New options '-mrtm'/'-mno-rtm' are added to enable/disable RTM feature - Builtin macro '__RTM__' is defined if RTM feature is enabled - RTM intrinsic header is added and introduces 3 new intrinsics, namely '_xbegin', '_xend', and '_xabort'. - 3 new builtins are added to keep compatible with gcc, namely '__builtin_ia32_xbegin', '__builtin_ia32_xend', and '__builtin_ia32_xabort'. - Test cases for pre-defined macro and new intrinsic codegen are added. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167665 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Make __LDBL_MAX__ etc. have the correct type on targets where long ↵Eli Friedman
double/double/etc. have the same format. PR14285. Based on patch by Jeroen Dobbelaere. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167649 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09Improved support for removing the comma preceding __VA_ARGS__ where __VA_ARGS__Andy Gibbs
is empty in a variadic macro expansion. This fixes a divergence in support for the ", ## __VA_ARGS__" GCC extension which differed in behaviour when in strict C99 mode (note: there is no change in behaviour has been made in the gnu99 mode that clang uses by default). In addition, there is improved support for the Microsoft alternative extension ", __VA_ARGS__". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167613 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-27Reverted back the changes made in 166868 and in 166869Mahesha S
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166871 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-27Feature:Mahesha S
OpenMP support. Sub-Feature: Support for "#pragma omp ..." registration with Preprocessor. Files Changed/Added: * include/clang/Basic/DiagnosticGroups.td (C) * include/clang/Basic/DiagnosticParseKinds.td (C) * include/clang/Basic/TokenKinds.def (C) * include/clang/Parse/Parser.h (C) * lib/Parse/Parser.cpp (C) Test Cases Changed/Added: * test/Preprocessor/pragma_omp.c (A) * test/Preprocessor/pragma_omp_ignored_warning.c (A) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166869 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25Correct test inovocations to use %clang_cc1 rather than direct invocation ↵David Tweed
(so that it can have additional options set when trying to debug issues causing regressions). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166681 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22Fix for PR13334. This prevents crashes that result from badly formedRichard Trieu
expressions involving __has_include git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166438 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19Prior to adding the new "expected-no-diagnostics" directive to ↵Andy Gibbs
VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166280 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-01[clang-tests] Changed relative paths to absolute paths in run command for ↵Michael Gottesman
annotate-macro-args.m, get-cursor-macro-args.m, import_self.c. This fixes make check-all failures when make -C is used to run the tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164978 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-26Allow -MF to be used in combination with -E -M or -E -MM.Benjamin Kramer
Fixes PR13851. Patch by Dimitry Andric! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164717 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-26Revert r163022, it caused PR13924.Nico Weber
Add a test for PR13924. Do not revert the test added in r163022, it surprisingly still passes even after reverting the code changes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164672 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-20The keywords "true" and "false" shouldn't warn under -Wundef.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164279 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-08Add some ARM EABI preprocessor builtins testsAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163467 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31Normalize line endings of r163022.Joao Matos
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163023 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31Emulate MSVC's preprocessor macro argument separator behavior by not ↵Joao Matos
considering commas from nested macro expansions as argument separators. Fixes parsing of VS 2012 headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163022 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-30Make preprocessor act in a GCC-compatible fashion when a macro is redefinedRichard Smith
within its own argument list. The original definition is used for the immediate expansion, but the new definition is used for any subsequent occurences within the argument list or after the expansion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162906 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-29Define __mips64 / __mips64__ macros for MIPS 64-bit targets.Simon Atanasyan
The patch suggested by Brad Smith. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162858 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-29Fixed a problem with #pragma push_macro/pop_macro implementation.Alexander Kornienko
Summary: The problem was with the following sequence: #pragma push_macro("long") #undef long #pragma pop_macro("long") in case when "long" didn't represent a macro. Fixed crash and removed code duplication for #undef/pop_macro case. Added regression tests. Reviewers: doug.gregor, klimek Reviewed By: doug.gregor CC: cfe-commits, chapuni Differential Revision: http://llvm-reviews.chandlerc.com/D31 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162845 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-29Define _MIPS_ARCH and _MIPS_ARCH_<cpu name> macros for MIPS targets.Simon Atanasyan
The patch suggested by Logan Chien. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162840 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-13c: small refactoring of checking for __attribute__(const))Fariborz Jahanian
per Richard's comment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161786 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-10Frontend: define _LP64 in a target-independent wayDylan Noblesmith
Instead of adding it to each individual subclass in Targets.cpp, simply check the appropriate target values. Where before it was only on x86_64 and ppc64, it's now also defined on mips64 and nvptx64. Also add a bunch of negative tests to ensure it is *not* defined on any other architectures while we're here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161685 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-08Preprocessor: fix __OPTIMIZE_SIZE__ and -OzDylan Noblesmith
Add some tests for __OPTIMIZE_SIZE__ and __NO_INLINE__, removing the superfluous copies in the target-specific tests, since it's target-independent. This uncovered a bug in the handling of -Oz: it would attempt to store the value 2 in the 1-bit bitfield OptimizeSize, leaving a value of 0 and never defining __OPTIMIZE_SIZE__. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161495 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-27Preprocessor: add __BYTE_ORDER__ predefined macroDylan Noblesmith
The __BYTE_ORDER__ predefined macro was added in GCC 4.6: http://gcc.gnu.org/onlinedocs/gcc-4.6.0/cpp/Common-Predefined-Macros.html It's used like the following: #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ ... #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ ... #else #error insane architecture like the pdp-11 #endif There's a similar macro, __FLOAT_WORD_ORDER__, but it looks like it mainly exist to accommodate fairly obscure architectures and ARM's old FPA instructions, so it doesn't seem nearly as useful. The tests are updated to check for the correct(at least, based on clang's current output) value of the macro on each target. So now the suite will catch bugs like the one fixed in r157626. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160879 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-27test/Preprocessor: add NVPTX predefine testsDylan Noblesmith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160866 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-19Define __FINITE_MATH_ONLY__ based on -ffast-math and -ffinite-math-only.Bob Wilson
This macro was being unconditionally set to zero, preceded by a FIXME comment. This fixes <rdar://problem/11845441>. Patch by Michael Gottesman! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160491 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-11Start testing some commented-out cases of badly-formed __has_include.Jordan Rose
Filed PR13334 for the cases that cause the compiler to crash, and PR13335 for the cases where we should be recovering more gracefully. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160070 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-11Allow -verify directives to be filtered by preprocessing.Jordan Rose
This is accomplished by making VerifyDiagnosticsConsumer a CommentHandler, which then only reads the -verify directives that are actually in live blocks of code. It also makes it simpler to handle -verify directives that appear in header files, though we still have to manually reparse some files depending on how they are generated. This requires some test changes. In particular, all PCH tests now have their -verify directives outside the "header" portion of the file, using the @line syntax added in r159978. Other tests have been modified mostly to make it clear what is being tested, and to prevent polluting the expected output with the directives themselves. Patch by Andy Gibbs! (with slight modifications) The new Frontend/verify-* tests exercise the functionality of this commit, as well as r159978, r159979, and r160053 (Andy's other -verify enhancements). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160068 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-07Wire up -mrdrnd for X86.Benjamin Kramer
For some reason GCC decided to call the feature rdrnd instead of rdrand, which requires translating it for LLVM. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159897 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-05MIPS: Define __mips_dsp_rev / __mips_dspr2 / __mips_dsp macrosSimon Atanasyan
if -mdsp or -mdspr2 options are provided. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159774 91177308-0d34-0410-b5e6-96231b3b80d8
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