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* Implement -working-directory.Argyrios Kyrtzidis2010-11-031-2/+26
| | | | | | | | | | | | | | | | | | | 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
* Substantially revise how clang computes the visibility of a declaration toJohn McCall2010-10-221-6/+6
| | | | | | | | more closely parallel the computation of linkage. This gets us to a state much closer to what gcc emits, modulo bugs, which will undoubtedly arise in abundance. llvm-svn: 117147
* Reorganize predefined macros for all Windows targets.Michael J. Spencer2010-10-211-0/+3
| | | | | | | | | | This adds an option to set the _MSC_VER macro without recompiling. This is very useful when testing compatibility with the Windows SDK and c++stdlib headers. -fmsc-version=<version> (defaults to VS2003 (1300)) llvm-svn: 116999
* Fix Whitespace.Michael J. Spencer2010-10-211-13/+13
| | | | llvm-svn: 116990
* "Fix" bogus idempotent operations warning due to loop unrolling not ↵Ted Kremenek2010-10-181-1/+1
| | | | | | | | | | unrolling enough loops to show that an invariant doesn't hold. This fix is to increase the loop unrolling count to 4, which experiments show doesn't typically impact analysis time. The real fix is to modify the IdempotentOperationsChecker to suppress warnings where an analysis point could be preceded by a point where we gave up due to loop unrolling. llvm-svn: 116769
* Wire up the -fstrict-aliasing and -fno-strict-aliasing optionsDan Gohman2010-10-141-0/+1
| | | | | | to CodeGenOption flags. llvm-svn: 116530
* Introduce command line option -error-on-deserialized-decl that is ↵Argyrios Kyrtzidis2010-10-141-0/+6
| | | | | | | | | | accompanied by a name and emits an error if a declaration with this name is deserialized from PCH. This is for testing, to make sure that we don't deserialize stuff needlessly. llvm-svn: 116505
* Introduce command line option -dump-deserialized-decls which is used to ↵Argyrios Kyrtzidis2010-10-141-0/+1
| | | | | | print the PCH decls that got deserialized, for testing purposes. llvm-svn: 116503
* Eliminate the (de-)serialization of code completion results, now thatDouglas Gregor2010-10-111-4/+0
| | | | | | libclang does not support out-of-process code completion. llvm-svn: 116253
* Eliminate -fdiagnostics-binary and all of the infrastructure forDouglas Gregor2010-10-111-3/+0
| | | | | | | | emitting diagnostics in a binary form to be consumed by libclang, since libclang no longer does any of its work out-of-process, making this code dead. Besides, this stuff never worked at 100% anyway. llvm-svn: 116250
* Declare argv parameters as const char* const* instead of to char** to ↵Axel Naumann2010-10-111-2/+2
| | | | | | clarify that they are not modified, and to allow for string literals as arguments. llvm-svn: 116200
* Implement -fshort-enums (rdar://8490496).Argyrios Kyrtzidis2010-10-081-0/+1
| | | | llvm-svn: 116020
* Introduce -flimit-debug-info.Devang Patel2010-09-301-0/+1
| | | | | | In this experimental mode try avoiding debug info emission for classes as much as possible. The goal is to reduce size of produced debuginfo without reducing quality of debug info in general. This is a work in progress. llvm-svn: 115188
* Added two new command line arguments:Marcin Swiderski2010-09-301-0/+2
| | | | | | | -cfg-add-implicit-dtors - sets CFG::BuildOptions::AddImplicitDtors for AnalysisCosumer to true, -cfg-add-initializers - sets CFG::BuildOptions::AddInitializers for AnalysisCosumer to true. llvm-svn: 115142
* Add a -ftrapv-handler= option which allows a handler to invoke instead of ↵David Chisnall2010-09-171-2/+11
| | | | | | simply aborting when a signed operation overflows. This mirrors the (GCC-incompatible) behaviour from clang 1.0 and 1.1 when -ftrapv was specified, but allows the handler to be defined for each compilation unit. llvm-svn: 114192
* Added AnalyzerStatsChecker, a path sensitive check that reports visitation ↵Tom Care2010-09-101-0/+3
| | | | | | statistics about analysis. Running clang with the -analyzer-stats flag will emit warnings containing the information. We can then run a postanalysis script to take this data and give useful information about how much the analyzer missed in a project. llvm-svn: 113568
* Frontend: Add -cxx-system-include option which can be used to specify anDaniel Dunbar2010-09-091-0/+6
| | | | | | | explicit list for the C++ system include directories at the -cc1 level, as an alternative to the horrible AddDefaultCPlusPlusIncludePaths(). llvm-svn: 113505
* Add support for Borland extensions via option -fborland-extensionsDawn Perchik2010-09-021-0/+3
| | | | | | (original patch r112791 was reverted due to a bug). llvm-svn: 112915
* Reverting rev 112791 - apparently -fborland-extensions is on all the time?!Dawn Perchik2010-09-021-3/+0
| | | | llvm-svn: 112797
* Add support for Borland extensions via option -fborland-extensionsDawn Perchik2010-09-021-0/+3
| | | | llvm-svn: 112791
* Straighten out target triples provided on the command lineDuncan Sands2010-08-301-1/+2
| | | | | | before using them. llvm-svn: 112468
* Frontend: Add basic -H support.Daniel Dunbar2010-08-241-2/+5
| | | | | | | - I didn't implement the GCC "multiple include guard" detection parts, because it doesn't seem useful or obvious. llvm-svn: 111983
* correct the -isystem option to not add the -isysroot path. Only the weirdChris Lattner2010-08-241-6/+7
| | | | | | -iwithsysroot flag should do that. This fixes rdar://8345942 llvm-svn: 111979
* Implement -iwithsysroot, an apple extension which is a close cousin of -isystem.Chris Lattner2010-08-241-1/+1
| | | | | | | Instead of implementing -isystem, I accidentally implemented this cousin. Next up is to implement -isystem right. llvm-svn: 111966
* Abstract out member-pointer creation. I'm really unhappy about the currentJohn McCall2010-08-221-6/+4
| | | | | | | | duplication between the constant and non-constant paths in all of this. Implement ARM ABI semantics for member pointer constants and conversion. llvm-svn: 111772
* Add machine-parseable Fix-It output as part of diagnostics, under theDouglas Gregor2010-08-191-0/+3
| | | | | | flag -fdiagnostics-parseable-fixits, from Eelis van der Weegen! llvm-svn: 111557
* Rename the ASTReader header files.Sebastian Redl2010-08-181-1/+1
| | | | llvm-svn: 111474
* Rename PCHReader to ASTReader.Sebastian Redl2010-08-181-1/+1
| | | | llvm-svn: 111467
* Reintroduce the serialization library, with fixed dependencies.Sebastian Redl2010-08-171-1/+1
| | | | llvm-svn: 111279
* Revert Sebastian's build-breaking patch.Douglas Gregor2010-08-171-1/+1
| | | | llvm-svn: 111265
* Create a new Serialization module that contains all the PCH code, and will ↵Sebastian Redl2010-08-171-1/+1
| | | | | | contain all the module code in the future. Update the Makefiles, CMake projects and the Xcode project. I hope I did everything right for Xcode. No functionality change. llvm-svn: 111258
* Add two options for playing with modules.Sebastian Redl2010-08-161-0/+8
| | | | llvm-svn: 111166
* Extend the code-completion caching infrastructure to include globalDouglas Gregor2010-08-151-0/+4
| | | | | | | | | | | | | | | | | | declarations (in addition to macros). Each kind of declaration maps to a certain set of completion contexts, and the ASTUnit completion logic introduces the completion strings for those declarations if the actual code-completion occurs in one of the contexts where it matters. There are a few new code-completion-context kinds. Without these, certain completions (e.g., after "using namespace") would need to suppress all global completions, which would be unfortunate. Note that we don't get the priorities right for global completions, because we don't have enough type information. We'll need a way to compare types in an ASTContext-agnostic way before this can be implemented. llvm-svn: 111093
* Add a new cc1 option -fix-what-you-can which when combined with the fix-it modeNick Lewycky2010-08-131-0/+3
| | | | | | will apply all fixes even when there were other errors in the file. llvm-svn: 111020
* Just disable the hidden-visibility optimization for now by hiding it behindJohn McCall2010-08-121-0/+1
| | | | | | | | a -cc1 option. The Darwin linker complains about mixed visibility when linking gcc-built objects with clang-built objects, and the optimization isn't really that valuable. Platforms with less ornery linkers can feel free to enable this. llvm-svn: 110979
* Frontend: Add -target-linker-version, for specifying the version string of theDaniel Dunbar2010-08-111-1/+6
| | | | | | linker in use. llvm-svn: 110871
* Make -funroll-loops turn on loop unrolling in the optimizer insteadEric Christopher2010-08-071-3/+7
| | | | | | of just ignoring it. llvm-svn: 110525
* Removed IdempotentOperationChecker from default analysis and returned back ↵Tom Care2010-08-061-0/+3
| | | | | | | | | to a flag (-analyzer-check-idempotent-operations) - Added IdempotentOperationChecker to experimental analyses for testing purposes - Updated test cases to explictly call the checker llvm-svn: 110482
* Add -cc1 option '-unoptimized-cfg' to toggle using a CFG (for static ↵Ted Kremenek2010-08-031-0/+1
| | | | | | analysis) that doesn't prune CFG edges. llvm-svn: 110087
* Implement -fno-validate-pch at the -cc1 level, which suppresses mostDouglas Gregor2010-07-271-1/+2
| | | | | | | | | | | | | | | of the usual consistency checks used to determine when a precompiled header is incompatible with the translation unit it's being loaded into. Enable this option when loading a precompiled preamble, because the preamble loader will be performing all of this checking itself. Enable the preamble-based test now that it's working. This option is also useful for debugging Clang's PCH (<rdar://problem/7532213>). llvm-svn: 109475
* Introduce basic support for loading a precompiled preamble whileDouglas Gregor2010-07-261-0/+17
| | | | | | | | | | | | | | | | | | | | | | | 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. llvm-svn: 109445
* Eliminate the "minimal" and printing parser actions, which only everDouglas Gregor2010-07-261-6/+0
| | | | | | | worked for C anyway. Also kills the -cc1 options -parse-noop and -parse-print-callbacks. llvm-svn: 109392
* Introduce a new lexer function to compute the "preamble" of a file,Douglas Gregor2010-07-201-0/+3
| | | | | | | | | which is the part of the file that contains all of the initial comments, includes, and preprocessor directives that occur before any of the actual code. Added a new -print-preamble cc1 action that is only used for testing. llvm-svn: 108913
* Improved false positive rate for the idempotent operations checker and moved ↵Tom Care2010-07-161-4/+0
| | | | | | | | | | it into the default path-sensitive analysis options. - Added checks for static local variables, self assigned parameters, and truncating/extending self assignments - Removed command line option (now default with --analyze) - Updated test cases to pass with idempotent operation warnings llvm-svn: 108550
* Introduce -f{no-}spell-checking options to enable/disableDouglas Gregor2010-07-091-0/+1
| | | | | | | spell-checking. By default, spell-checking is enabled for Clang (obviously) but disabled in CIndex for performance reasons. llvm-svn: 107992
* Add a frontend option -chained-pch and don't pass an active PCH reader to ↵Sebastian Redl2010-07-091-0/+3
| | | | | | the PCH writer if it is not set, preventing creation of chained PCH files. Since the reader is so far unused, effectively no functionality change. llvm-svn: 107936
* Added a path-sensitive idempotent operation checker ↵Tom Care2010-07-061-0/+4
| | | | | | | | | | | | | | | | | | | (-analyzer-idempotent-operation). Finds idempotent and/or tautological operations in a path sensitive context, flagging operations that have no effect or a predictable effect. Example: { int a = 1; int b = 5; int c = b / a; // a is 1 on all paths } - New IdempotentOperationChecker class - Moved recursive Stmt functions in r107675 to IdempotentOperationChecker - Minor refactoring of SVal to allow checking for any integer - Added command line option for check - Added basic test cases llvm-svn: 107706
* Driver/IRgen: Add support for -momit-leaf-frame-pointer.Daniel Dunbar2010-07-011-0/+3
| | | | llvm-svn: 107367
* Implement support for -fwrapv, rdar://7221421Chris Lattner2010-06-261-4/+10
| | | | | | | | | | | | As part of this, pull together trapv handling into the same enum. This also add support for NSW multiplies. This also makes PCH disagreement on overflow behavior silent, since it really doesn't matter except for warnings and codegen (no macros get defined etc). llvm-svn: 106956
* implement support for -finstrument-functions, patch by NelsonChris Lattner2010-06-221-0/+2
| | | | | | Elhage! llvm-svn: 106507
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