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2012-01-27Introduce module attributes into the module map grammar, along with aDouglas Gregor
single attribute ("system") that allows us to mark a module as being a "system" module. Each of the headers that makes up a system module is considered to be a system header, so that we (for example) suppress warnings there. If a module is being inferred for a framework, and that framework directory is within a system frameworks directory, infer it as a system framework. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149143 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-27Due to a bug, -Wno-everything works like -Weverything. Fix the bug by havingArgyrios Kyrtzidis
-Wno-everything remap all warnings to ignored. We can now use "-Wno-everything -W<warning>" to ignore all warnings except specific ones. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149121 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26objc-arc: introduce -no-finalize-removal which in gc mode,Fariborz Jahanian
leaves "finalize' behind and in arc mode, does not include it. This allows the migrated source to be compiled in both gc and arc mode. // rdar://10532441 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149079 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26Extend the ExternalASTSource interface to allow the AST source toDouglas Gregor
provide the layout of records, rather than letting Clang compute the layout itself. LLDB provides the motivation for this feature: because various layout-altering attributes (packed, aligned, etc.) don't get reliably get placed into DWARF, the record layouts computed by LLDB from the reconstructed records differ from the actual layouts, and badness occurs. This interface lets the DWARF data drive layout, so we don't need the attributes preserved to get the answer write. The testing methodology for this change is fun. I've introduced a variant of -fdump-record-layouts called -fdump-record-layouts-simple that always has the simple C format and provides size/alignment/field offsets. There is also a -cc1 option -foverride-record-layout=<file> to take the output of -fdump-record-layouts-simple and parse it to produce a set of overridden layouts, which is introduced into the AST via a testing-only ExternalASTSource (called LayoutOverrideSource). Each test contains a number of records to lay out, which use various layout-changing attributes, and then dumps the layouts. We then run the test again, using the preprocessor to eliminate the layout-changing attributes entirely (which would give us different layouts for the records), but supplying the previously-computed record layouts. Finally, we diff the layouts produced from the two runs to be sure that they are identical. Note that this code makes the assumption that we don't *have* to provide the offsets of bases or virtual bases to get the layout right, because the alignment attributes don't affect it. I believe this assumption holds, but if it does not, we can extend LayoutOverrideSource to also provide base offset information. Fixes the Clang side of <rdar://problem/10169539>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149055 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26Introduce 3 new fixit options:Argyrios Kyrtzidis
-fixit-recompile applies fixits and recompiles the result -fixit-to-temporary applies fixits to temporary files -fix-only-warnings">, applies fixits for warnings only, not errors Combining "-fixit-recompile -fixit-to-temporary" allows testing the result of fixits without touching the original sources. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149027 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-25Fix -fmacro-backtrace-limit=0 to show the entire macro backtrace.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148930 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-25Rework the external Sema source's ReadMethodPool() so that it doesn'tDouglas Gregor
return pre-built lists. Instead, it feeds the methods it deserializes to Sema so that Sema can unique them, which keeps the chains shorter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148889 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-25arc migrator: Provide infrastructure to add optionsFariborz Jahanian
specific to migrator. Use its first option to warn migrating from GC to arc when NSAllocateCollectable/NSReallocateCollectable is used. // rdar://10532541 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148887 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-23Improve Lexer::getImmediateMacroName to take into account inner macrosArgyrios Kyrtzidis
of macro arguments. For "MAC1( MAC2(foo) )" and location of 'foo' token it would return "MAC1" instead of "MAC2". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148704 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-23Add support for -fno-optimize-sibling-calls. Currently only implemented in theNick Lewycky
X86 backend in LLVM. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148689 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-21lib/Frontend/InitHeaderSearch.cpp: [Cygwin] Add 4.5.3.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148637 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-21[Cygwin] Abandon Cygwin-1.5 and g++-3. Use g++-4.3 and higher on Cygwin-1.7.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148636 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20More dead code removal (using -Wunreachable-code)David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20Extract the (InputKind, std::string) pair used to describe inputs toDouglas Gregor
the front end into its own class, FrontendInputFile, to make it easier to introduce new per-input data. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148546 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18Refactor: Pull getImmediateMacroName() out of DiagnosticRenderer andAnna Zaks
into Lexer and Preprocessor; making it widely available. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148410 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17[libclang] Make sure Preprocessor is set in ASTUnit during indexing.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148319 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Treat -Wformat=0 as an alias for -Wformat.Hans Wennborg
Fixes PR9195. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148300 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Remove unnecessary default cases in switches over enums.David Blaikie
This allows -Wswitch-enum to find switches that need updating when these enums are modified. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148281 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
2012-01-05When loading an AST file, set SourceManager::MainFileID to the main file of ↵Argyrios Kyrtzidis
the AST file, as suggested by Tom Honermann. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147612 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05When generating includes for all of the headers we found in anDouglas Gregor
umbrella directory, skip includes for any headers that are part of an unavailable module. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147572 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-04Store the submodules of a module in source order, as they are storedDouglas Gregor
in the module map. This provides a bit more predictability for the user, as well as eliminating the need to sort the submodules when serializing them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147564 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
2012-01-03Rename the command-line option for mapping #include/#import over toDouglas Gregor
module imports from -fauto-module-import to -fmodules. The new name will eventually be used to enable modules, and the #include/#import mapping is a crucial part of the feature. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147447 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
2012-01-02Fix PR11685 by implementing -ffast-math and its various friends in theChandler Carruth
Clang driver. This involves a bunch of silly option parsing code to try to carefully emulate GCC's options. Currently, this takes a conservative approach, and unless all of the unsafe optimizations are enabled, none of them are. The fine grained control doesn't seem particularly useful. If it ever becomes useful, we can add that to LLVM first, and then expose it here. This also fixes a few tiny bugs in the flag management around -fhonor-infinities and -fhonor-nans; the flags now form proper sets both for enabling and disabling, with the last flag winning. I've also implemented a moderately terrifying GCC feature where a language change is also provided by the '-ffast-math' flag by defining the __FAST_MATH__ preprocessor macro. This feature is tracked and serialized in the frontend but it isn't used yet. A subsequent patch will add the preprocessor macro and tests for it. I've manually tested that codegen appears to respect this, but I've not dug in enough to see if there is an easy way to test codegen options w/o relying on the particulars of LLVM's optimizations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147434 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-01Eliminate ObjCForwardProtocolDecl, which is redundant now thatDouglas Gregor
ObjCProtocolDecl modules forward declarations properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147415 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-31Implement support for module requirements, which indicate the languageDouglas Gregor
features needed for a particular module to be available. This allows mixed-language modules, where certain headers only work under some language variants (e.g., in C++, std.tuple might only be available in C++11 mode). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147387 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
2011-12-27Eliminate ObjCClassDecl, which is redundant now that ObjCInterfaceDeclDouglas Gregor
covers both declarations (@class) and definitions (@interface) of an Objective-C class. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147299 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-25Remove unused variables.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147260 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
2011-12-23Let CompilerInvocation initialization indicate failureDylan Noblesmith
This fixes the FIXMEs in ParseAnalyzeArgs. (Also a precursor to moving the analyzer into an AST plugin.) For consistency, do the same with AssemblerInvocation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147218 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22remove unneeded config.h includesDylan Noblesmith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147195 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-20Update the CMake build for r146959's new files.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146967 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-20Unweaken vtables as per ↵David Blaikie
http://llvm.org/docs/CodingStandards.html#ll_virtual_anch git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146959 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-20Detect when mapping a #include/#import over to a submodule ends upDouglas Gregor
hitting a submodule that was never actually created, e.g., because that header wasn't parsed. In such cases, complain (because the module's umbrella headers don't cover everything) and fall back to including the header. Later, we'll add a warning at module-build time to catch all such cases. However, this fallback is important to eliminate assertions in the ASTWriter when this happens. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146933 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-17Frontend/VerifyDiagnosticConsumer.cpp: Fix an expression that had side-effect.NAKAMURA Takumi
It had been causing test "Misc/diag-verify.cpp" failure on ms cl.exe. The emission was ordered unexpectedly as below; First) error: 'error' diagnostics seen but not expected: Second) error: 'error' diagnostics expected but not seen: git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-17Refactor SerializeDiagnosticsPrinter to using DiagnosticRenderer. This ↵Ted Kremenek
gives us comparative diagnostics to TextDiagnosticPrinter. This certainly can be cleaned up a bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146820 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-17Refactor 'TextDiagnostic' to have a parent class 'DiagnosticRenderer' which ↵Ted Kremenek
handles the policy of how diagnostics are lowered/rendered, while TextDiagnostic handles the actual pretty-printing. This is a first part of reworking SerializedDiagnosticPrinter to use the same inclusion-stack/macro-expansion logic as TextDiagnostic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146819 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-16C++11 constexpr: Add note stacks containing backtraces if constant evaluationRichard Smith
fails within a call to a constexpr function. Add -fconstexpr-backtrace-limit argument to driver and frontend, to control the maximum number of notes so produced (default 10). Fix APValue printing to be able to pretty-print all APValue types, and move the testing for this functionality from a unittest to a -verify test now that it's visible in clang's output. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146749 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-16Fixup to the relaxed diagnostic verification option r146633.Anna Zaks
We should exit when matching the '+' even if nothing was found to prevent searching for all UNIT_MAX items. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146747 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15Revert r146646 that was a mistake, and make the intended change in the right ↵Argyrios Kyrtzidis
file. Log: [libclang] Try to unbreak mingw build. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146647 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15[libclang] Try to unbreak mingw build.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146646 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15<climits> has UINT_MAX, not <limits>.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146638 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15Another fixit for r146633 (to make debian-fnt bot happy), try including ↵Anna Zaks
limits instead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146637 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15Fixit for r146633. Make sure UINT_MAX is defined on all platforms.Anna Zaks
(Attempt to turn debian-fnt buildbot back to green.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146635 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15Add support for matching one or more (aka regex +) diagnostic messages with ↵Anna Zaks
-verify. Ex: // expected-warning + {{tainted} git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146633 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15Modify how the -verify flag works. Currently, the verification string andRichard Trieu
diagnostic message are compared. If either is a substring of the other, then no error is given. This gives rise to an unexpected case: // expect-error{{candidate function has different number of parameters}} will match the following error messages from Clang: candidate function has different number of parameters (expected 1 but has 2) candidate function has different number of parameters It will also match these other error messages: candidate function function has different number of parameters number of parameters This patch will change so that the verification string must be a substring of the diagnostic message before accepting. Also, all the failing tests from this change have been corrected. Some stats from this cleanup: 87 - removed extra spaces around verification strings 70 - wording updates to diagnostics 40 - extra leading or trailing characters (typos, unmatched parens or quotes) 35 - diagnostic level was included (error:, warning:, or note:) 18 - flag name put in the warning (-Wprotocol) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146619 91177308-0d34-0410-b5e6-96231b3b80d8
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