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2012-07-11Emit -verify diagnostics even when we have a fatal error.Jordan Rose
Previously we'd halt at the fatal error as expected, but not actually emit any -verify-related diagnostics. This lets us catch cases that emit a /different/ fatal error from the one we expected. This is implemented by adding a "force emit" mode to DiagnosticBuilder, which will cause diagnostics to immediately be emitted regardless of current suppression. Needless to say this should probably be used /very/ sparingly. Patch by Andy Gibbs! Tests for all of Andy's -verify patches coming soon. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160053 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-10Clear diagnostic counts after processing the diagnostics.Axel Naumann
The consumer might see multiple input files (e.g. for cling) and since r159977 the count is maintained across input files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159995 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-10Allow -verify directives to specify a min and max count, not just "+".Jordan Rose
void f(); // expected-note 0+ {{previous declaration is here}} void g(); // expected-note 0-1 {{previous declaration is here}} The old "+" syntax is still an alias for "1+", and single numbers still work. Patch by Andy Gibbs! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159979 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-10Allow line numbers on -verify directives.Jordan Rose
// expected-warning@10 {{some text}} The line number may be absolute (as above), or relative to the current line by prefixing the number with either '+' or '-'. Patch by Andy Gibbs! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159978 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-10Clean up VerifyDiagnosticsConsumer in preparation for upcoming enhancements.Jordan Rose
Patch by Andy Gibbs! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159977 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-07Re-apply r159875 with fixes.Ted Kremenek
- Split pedantic driver flag test into separate test file, and XFAIL on cygwin,mingw32 - Fix bug in tablegen logic where a missing '{' caused errors to be included in -Wpedantic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159892 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-07Revert rr159875, "Implement -Wpedantic and --no-pedantic to complement ↵NAKAMURA Takumi
-Weverything." It broke several builds. I suspect FileCheck might match assertion failure, even if clang/test/Misc/warning-flags.c passed the test. > 0. Program arguments: bin/./clang -### -pedantic -Wpedantic clang/test/Driver/warning-options.cpp git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159886 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06Implement -Wpedantic and --no-pedantic to complement -Weverything.Ted Kremenek
This patch introduces some magic in tablegen to create a "Pedantic" diagnostic group which automagically includes all warnings that are extensions. This allows a user to suppress specific warnings traditionally under -pedantic used an ordinary warning flag. This also allows users to use #pragma to silence specific -pedantic warnings, or promote them to errors, within blocks of text (just like any other warning). -Wpedantic is NOT an alias for -pedantic. Instead, it provides another way to (a) activate -pedantic warnings and (b) disable them. Where they differ is that -pedantic changes the behavior of the preprocessor slightly, whereas -Wpedantic does not (it just turns on the warnings). The magic in the tablegen diagnostic emitter has to do with computing the minimal set of diagnostic groups and diagnostics that should go into -Wpedantic, as those diagnostics that already members of groups that themselves are (transitively) members of -Wpedantic do not need to be included in the Pedantic group directly. I went back and forth on whether or not to magically generate this group, and the invariant was that we always wanted extension warnings to be included in -Wpedantic "some how", but the bookkeeping would be very onerous to manage by hand. -no-pedantic (and --no-pedantic) is included for completeness, and matches many of the same kind of flags the compiler already supports. It does what it says: cancels out -pedantic. One discrepancy is that if one specifies --no-pedantic and -Weverything or -Wpedantic the pedantic warnings are still enabled (essentially the -W flags win). We can debate the correct behavior here. Along the way, this patch nukes some code in TextDiagnosticPrinter.cpp and CXStoredDiagnostic.cpp that determine whether to include the "-pedantic" flag in the warning output. This is no longer needed, as all extensions now have a -W flag. This patch also significantly reduces the number of warnings not under flags from 229 to 158 (all extension warnings). That's a 31% reduction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159875 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06Add -ffp-contract = { fast | on | off } command line option support.Lang Hames
This flag sets the 'fp-contract' mode, which controls the formation of fused floating point operations. Available modes are: - Fast: Form fused operations anywhere. - On: Form fused operations where allowed by FP_CONTRACT. This is the default mode. - Off: Don't form fused operations (in future this may be relaxed to forming fused operations where it can be proved that the result won't be affected). Currently clang doesn't support the FP_CONTRACT pragma, so the 'On' and 'Off' modes are equivalent. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159794 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06Implement AST classes for comments, a real parser for Doxygen comments and aDmitri Gribenko
very simple semantic analysis that just builds the AST; minor changes for lexer to pick up source locations I didn't think about before. Comments AST is modelled along the ideas of HTML AST: block and inline content. * Block content is a paragraph or a command that has a paragraph as an argument or verbatim command. * Inline content is placed within some block. Inline content includes plain text, inline commands and HTML as tag soup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159790 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-03[libclang] Protect against a race condition where a threadArgyrios Kyrtzidis
may be destroying an ASTUnit while cleanupOnDiskMapAtExit is getting called. rdar://11781241 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Reduce default template instantiation depth to 512; we're blowing outDouglas Gregor
the stack too often with 1024. Fixes <rdar://problem/11678534>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159573 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Add a new libclang completion API to get brief documentation comment that isDmitri Gribenko
attached to a declaration in the completion string. Since extracting comments isn't free, a new code completion option is introduced. A new code completion option that enables including brief comments into CodeCompletionString should be a, err, code completion option. But because ASTUnit caches global declarations during parsing before even completion consumer is created, the option is duplicated as a translation unit option (in both libclang and ASTUnit, like the option to cache code completion results). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159539 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28When applying a template diff highlighting to a diagnostic message, rememberRichard Trieu
to reapply the bold formatting when needed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159386 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28Fix template type diffing coloring (r159216) when forcing color output to a ↵David Blaikie
file (not a terminal) Reviewed (over the shoulder) by Richard Trieu. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159381 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28Add -ftls-model command-line flag.Hans Wennborg
This allows for setting the default TLS model. (PR9788) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159336 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26Add template type diffing to Clang. This feature will provide a betterRichard Trieu
comparison between two templated types when they both appear in a diagnostic. Type elision will remove indentical template arguments, which can be disabled with -fno-elide-type. Cyan highlighting is applied to the differing types. For more formatting, -fdiagnostic-show-template-tree will output the template type as an indented text tree, with differences appearing inline. Template tree works with or without type elision. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159216 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-22Documentation cleanup: escape \ characters in Doxygen comments as needed.James Dennett
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158968 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-21Remove a goofy CMake hack and use the standard CMake facilities toChandler Carruth
express library-level dependencies within Clang. This is no more verbose really, and plays nicer with the rest of the CMake facilities. It should also have no change in functionality. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158888 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-20Restructure how the driver communicates information about theJohn McCall
target Objective-C runtime down to the frontend: break this down into a single target runtime kind and version, and compute all the relevant information from that. This makes it relatively painless to add support for new runtimes to the compiler. Make the new -cc1 flag, -fobjc-runtime=blah-x.y.z, available at the driver level as a better and more general alternative to -fgnu-runtime and -fnext-runtime. This new concept of an Objective-C runtime also encompasses what we were previously separating out as the "Objective-C ABI", so fragile vs. non-fragile runtimes are now really modelled as different kinds of runtime, paving the way for better overall differentiation. As a sort of special case, continue to accept the -cc1 flag -fobjc-runtime-has-weak, as a sop to PLCompatibilityWeak. I won't go so far as to say "no functionality change", even ignoring the new driver flag, but subtle changes in driver semantics are almost certainly not intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158793 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-19Extend the support for cl-std to include 1.2.Tanya Lattner
Add error checking for the static qualifier which is now allowed in certain situations for OpenCL 1.2. Use the CL version to turn on this feature. Added test case for 1.2 static storage class feature. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158759 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-19Add a -fuse-init-array option to cc1 and map to the UseInitArray targetRafael Espindola
option. On the driver, check if we are using libraries from gcc 4.7 or newer and if so pass -fuse-init-array to the frontend. The crtbegin*.o files in gcc 4.7 no longer call the constructors listed in .ctors, so we have to use .init_array. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158694 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-19Sink definition of IBOutlet, IBOutletCollection, and IBAction intoTed Kremenek
the compiler predefines buffer. These are essentially part of the Objective-C language. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158690 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18Add language std for OpenCL 1.1 and 1.2.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158686 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18Move a few static functions from DiagnosticRenderer.cpp into SourceManager.Matt Beaumont-Gay
This simplifies the code a little bit, since these functions all took a SourceManager parameter and called a bunch of methods on it, and makes the functions available to other users. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158676 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Explicitly build __builtin_va_list.Meador Inge
The target specific __builtin_va_list types are now explicitly built instead of injecting strings into the preprocessor input. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158592 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15[-E] Emit a rewritten _Pragma on its own line.Jordan Rose
1. Teach Lexer that pragma lexers are like macro expansions at EOF. 2. Treat pragmas like #define/#undef when printing. 3. If we just printed a directive, add a newline before any more tokens. (4. Miscellaneous cleanup in PrintPreprocessedOutput.cpp) PR10594 and <rdar://problem/11562490> (two separate related problems) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158571 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Documentation cleanup: escape # in a Doxygen comment.James Dennett
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158554 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14Support -frewrite-includes as an option while preprocessing.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158460 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14Rename -rewrite-includes to -frewrite-includes.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158458 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-13More doxygen/documentation cleanups.James Dennett
This reduces the number of warnings generated by Doxygen by about 100 (roughly 10%). Issues addressed: (1) Primarily, backslash-escaped "@foo" and "#bah" in Doxygen comments when they're not supposed to be Doxygen commands or links, and similarly for "<baz>" when it's not intended as as HTML tag; (2) Changed some \t commands (which don't exist) to \c ("to refer to a word of code", as the Doxygen manual says); (3) \precondition becomes \pre; (4) When touching comments, deleted a couple of spurious spaces in them; (5) Changed some \n and \r to \\n and \\r; (6) Fixed one tiny typo: #pragms -> #pragma. This patch touches documentation/comments only. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158422 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-13Add -isystem-prefix and -ino-system-prefix arguments, which can be used toRichard Smith
override whether headers are system headers by checking for prefixes of the header name specified in the #include directive. This allows warnings to be disabled for third-party code which is found in specific subdirectories of include paths. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158418 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-11Const'ify CompilerInvocation::toArgs().Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158298 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-08If fixits appear to overlap, move the second one over in the output.Jordan Rose
This occurs when you have two insertions and the first one is so long that the second fixit's column is before the first fixit ends. The edits themselves don't actually overlap, but our command-line preview does. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158229 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-08[libclang] Don't crash when saving a PCH from a prefix headerArgyrios Kyrtzidis
that does not exist. rdar://11607033 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158193 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Revert Decl's iterators back to pointer value_type rather than reference ↵David Blaikie
value_type In addition, I've made the pointer and reference typedef 'void' rather than T* just so they can't get misused. I would've omitted them entirely but std::distance likes them to be there even if it doesn't use them. This rolls back r155808 and r155869. Review by Doug Gregor incorporating feedback from Chandler Carruth. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158104 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Add a -rewrite-includes option, which is similar to -rewrite-macros, but ↵David Blaikie
only expands #include directives. Patch contributed by Lubos Lunak (l.lunax@suse.cz). Review by Matt Beaumont-Gay (matthewbg@google.com). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158093 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Zap the /Za compiler switch from MSVC projects, the option is considered ↵Francois Pichet
harmful even by Microsoft people and clang won't build using the MSVC 2012 RC if not removed. Only 1 minor code change was necessary: can't use cdecl as variable name anymore. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158063 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-29Fix indenting.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157628 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-25ensure value passed to is space is representable as unsigned charSeth Cantrell
if the value isn't an unsigned char or EOF behavior is undefined (and on Windows there's an assertion) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157445 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-24fix Bug 12924Seth Cantrell
http://llvm.org/bugs/show_bug.cgi?id=12924 This issue was that the source location was pointing to a non-printable character and so CaretEnd was pointing one _column_ past the caret but not one _character_ past the caret. So the conversion between column and byte locations wasn't working (because the conversion is only valid from the first column or byte of a character). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157372 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-22wire -fbounds-checking to the new LLVM bounds checking passNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157262 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-21[driver] When creating the compiler invocation out of command-lineArgyrios Kyrtzidis
arguments, force use of clang frontend for the driver. Fixes rdar://11356765. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157205 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-16Pulls diagnostics for temp file handling into the common diagnostic kinds.Manuel Klimek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156947 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-16Tweek r156937 a bit so that the suggestions are correct.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156938 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-16Warn about -Wno-foo where foo is an unknown warning option. This is helpful Chad Rosier
for subtle misspellings such as -Wno-unused-command-line-arguments instead of -Wno-unused-command-line-argument. Also fix the diagnostic messages to properly handle -Wno- options. Previously, the positive version was always emitted (i.e., -Wfoo was emitted for -Wno-foo). rdar://11461500 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156937 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-11For final output files create them with mode 0664 to match otherEric Christopher
compilers and expected defaults. Part of rdar://11325849 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156592 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-10Fix an assertion hit when the serialized diagnostics writer receive a diagnosticArgyrios Kyrtzidis
from the frontend when the location is invalid and the SourceManager null. Instead of keeping the SourceManager object in DiagnosticRenderer, propagate it to the calls accordingly (as reference when it is expected to not be null, or pointer when it may be null). This effectively makes DiagnosticRenderer not tied to a specific SourceManager, removing a hack from TextDiagnosticPrinter. rdar://11386874 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-08add -fbounds-checking option.Nuno Lopes
When enabled, clang generates bounds checks for array and pointers dereferences. Work to follow in LLVM's backend. OK'ed by Chad; thanks for the review. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156431 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04Add a predefine __WINT_UNSIGNED__, similar to __WCHAR_UNSIGNED__, and test ↵James Molloy
them both for ARM and X86. Use this to fully fix Sema/format-strings.c for non-x86 platforms. Reviewed by Chandler on IRC. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156169 91177308-0d34-0410-b5e6-96231b3b80d8
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