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2013-02-24[preprocessor] Use MacroDirective in the preprocessor callbacks to make ↵Argyrios Kyrtzidis
available the full information about the macro (e.g if it was imported and where). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175978 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Add streamed versions of getQualifiedNameAsString.Benjamin Kramer
Move the cold virtual method getNameForDiagnostic out of line. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175966 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Propagate the split dwarf file information through into the backendEric Christopher
and through to the debug info in the module. In order to make the testcase a bit more efficient allow the filename to go through compilation for compile and not assemble jobs and turn off the extract for cases where we don't create an object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175935 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Comment parsing: add CommentOptions to allow specifying custom comment block ↵Dmitri Gribenko
commands Add an ability to specify custom documentation block comment commands via a new class CommentOptions. The intention is that this class will hold future customizations for comment parsing, including defining documentation comments with specific numbers of parameters, etc. CommentOptions instance is a member of LangOptions. CommentOptions is controlled by a new command-line parameter -fcomment-block-commands=Foo,Bar,Baz. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175892 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Add -fbracket-depth=N, analogous to -ftemplate-depth= and -fconstexpr-depth=,Richard Smith
to control the check for the C 5.2.4.1 / C++ [implimits] restriction on nesting levels for parentheses, brackets and braces. Some code with heavy macro use exceeds the default limit of 256, but we don't want to increase it generally to avoid stack overflow on stack-constrained systems. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175855 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-21Teach serialized diagnostics about notes without locations.Ted Kremenek
Along the way, improve a diagnostic for "previous declaration here" for implicit parameters. Fixes <rdar://problem/13211384>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175802 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-21Preprocessor: preserve whitespace in -traditional-cpp mode.Jordan Rose
Note that unlike GNU cpp we currently do not preserve whitespace in macros (even in -traditional-cpp mode). <rdar://problem/12897179> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175778 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20[preprocessor] Split the MacroInfo class into two separate concepts, ↵Argyrios Kyrtzidis
MacroInfo class for the data specific to a macro definition (e.g. what the tokens are), and MacroDirective class which encapsulates the changes to the "macro namespace" (e.g. the location where the macro name became active, the location where it was undefined, etc.) (A MacroDirective always points to a MacroInfo object.) Usually a macro definition (MacroInfo) is where a macro name becomes active (MacroDirective) but splitting the concepts allows us to better model the effect of modules to the macro namespace (also as a bonus it allows better modeling of push_macro/pop_macro #pragmas). Modules can have their own macro history, separate from the local (current translation unit) macro history; MacroDirectives will be used to model the macro history (changes to macro namespace). For example, if "@import A;" imports macro FOO, there will be a new local MacroDirective created to indicate that "FOO" became active at the import location. Module "A" itself will contain another MacroDirective in its macro history (at the point of the definition of FOO) and both MacroDirectives will point to the same MacroInfo object. Introducing the separation of macro concepts is the first part towards better modeling of module macros. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175585 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19Add support for -fvisibility-ms-compat.John McCall
We treat this as an alternative to -fvisibility=<?> which changes the default value visibility to "hidden" and the default type visibility to "default". Expose a -cc1 option for changing the default type visibility, repurposing -fvisibility as the default value visibility option (also setting type visibility from it in the absence of a specific option). rdar://13079314 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175480 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08Excise <cctype> from Clang (except clang-tblgen) in favor of CharInfo.h.Jordan Rose
Nearly all of these changes are one-to-one replacements; the few that aren't have to do with custom identifier validation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174768 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08Never cache the result of a module file lookup.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174744 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07Rename -fmodule-cache-path <blah> to -fmodules-cache-path=<blah> for ↵Douglas Gregor
consistency. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174645 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07Simplify FindExternalVisibleDeclsByName by making it return a bool indicatingRichard Smith
if it found any decls, rather than returning a list of found decls. This removes a returning-ArrayRef-to-deleted-storage bug from MultiplexExternalSemaSource (in code not exercised by any of the clang binaries), reduces the work required in the found-no-decls case with PCH, and importantly removes the need for DeclContext::lookup to be reentrant. No functionality change intended! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174576 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07Be a little more permissive with -fmodules-ignore-macro= by removing ↵Douglas Gregor
everything after the second '=' if it is there. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174567 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07Introduce -fmodules-ignore-macro=NNN to ignore a macro when building/loading ↵Douglas Gregor
modules. The use of this flag enables a modules optimization where a given set of macros can be labeled as "ignored" by the modules system. Definitions of those macros will be completely ignored when building the module hash and will be stripped when actually building modules. The overall effect is that this flag can be used to drastically reduce the number of Eventually, we'll want modules to tell us what set of macros they respond to (the "configuration macros"), and anything not in that set will be excluded. However, that requires a lot of per-module information that must be accurate, whereas this option can be used more readily. Fixes the rest of <rdar://problem/13165109>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174560 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-06Detect when we end up trying to load conflicting module files.Douglas Gregor
This can happen when one abuses precompiled headers by passing more -D options when using a precompiled hedaer than when it was built. This is intentionally permitted by precompiled headers (and is exploited by some build environments), but causes problems for modules. First part of <rdar://problem/13165109>, detecting when something when horribly wrong. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174554 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05[frontend] Don't put a PCH/PTH filename into the set of includes in the ↵Argyrios Kyrtzidis
preprocessor options; since only one of them is allowed in command-line, process them separately. Otherwise, if more than one is specified in the command-line, one is processed normally and the others are going to be treated and included as header files. Related to radar://13140508 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174385 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05TextDiagnostic.cpp: Suppress a warning to use ptrdiff_t on i686-clang. ↵NAKAMURA Takumi
[-Wsign-compare] git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174353 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01For ModuleLoader::makeModuleVisible() also pass the source location where theArgyrios Kyrtzidis
module import occurred. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174191 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Diagnostics: Clarify name of line-length-limiting constant in r173976.Jordan Rose
Thanks, Sean. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173981 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Diagnostics: if a line is longer than 4096 characters, don't print it.Jordan Rose
Specifically, don't print snippets, caret diagnostics, or ranges for lines over 4096 characters. We copy the line around a few times in our diagnostics machinery, and we have to print a caret line that's just as long. This uses a lot of memory just to create a poor user experience as we print out a line much too long for anyone to read...or spend extra energy trying to fit it to -fmessage-length. <rdar://problem/13106850> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173976 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30[analyzer] Make shallow mode more shallow.Anna Zaks
Redefine the shallow mode to inline all functions for which we have a definite definition (ipa=inlining). However, only inline functions that are up to 4 basic blocks large and cut the max exploded nodes generated per top level function in half. This makes shallow faster and allows us to keep inlining small functions. For example, we would keep inlining wrapper functions and constructors/destructors. With the new shallow, it takes 104s to analyze sqlite3, whereas the deep mode is 658s and previous shallow is 209s. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173958 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30[analyzer] Use analyzer config for max-inlinable-size option.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173957 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Move UTF conversion routines from clang/lib/Basic to llvm/lib/SupportDmitri Gribenko
This is required to use them in TableGen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173924 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Don't warn about Unicode characters in -E mode.Jordan Rose
People use the C preprocessor for things other than C files. Some of them have Unicode characters. We shouldn't warn about Unicode characters appearing outside of identifiers in this case. There's not currently a way for the preprocessor to tell if it's in -E mode, so I added a new flag, derived from the PreprocessorOutputOptions. This is only used by the Unicode warnings for now, but could conceivably be used by other warnings or even behavioral differences later. <rdar://problem/13107323> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173881 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30[Frontend] Factor AddUnmappedPath() out of AddPath() and simplify.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173871 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30[Frontend] Remove HeaderSearchOptions::Entry::IsInternal, which is unused.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173866 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30[Frontend] Add an ExternCSystem include entry group.Daniel Dunbar
- The only group where it makes sense for the "ExternC" bit is System, so this simplifies having to have the extra isCXXAware (or ImplicitExternC, depending on what code you talk to) bit caried around. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173859 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29[Frontend] Make the include dir group independent from the "use sysroot" bit.Daniel Dunbar
- This slightly decouples the path handling, since before the group sometimes dominated the "use sysroot" bit, but it was still passed in via the API. - No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173855 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29[Frontend] Rename a member variable to clarify its intent.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173854 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29[Frontend] Factor out helper function, for clarity.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173853 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29[ubsan] Implement the -fcatch-undefined-behavior flag using a trappingChad Rosier
implementation; this is much more inline with the original implementation (i.e., pre-ubsan) and does not require run-time library support. The trapping implementation can be invoked using either '-fcatch-undefined-behavior' or '-fsanitize=undefined-trap -fsanitize-undefined-trap-on-error', with the latter being preferred. Eventually, the -fcatch-undefined-behavior' flag will be removed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173848 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Enable the global module index by default. Introduce theDouglas Gregor
-fno-modules-global-index -cc1 option to allow one to disable the index for performance testing purposes, but with a 10% win in -fsyntax-only time, there is no reason a user would do this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173707 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Fix the indentation of the first line of preprocessor outputHal Finkel
The -E output from clang did not produce the correct indentation on the first line. This is because MoveToLine returned false, and when this happens, the regular process for producing initial indentation is skipped. Thanks to Eli for suggesting a way to simplify this to a one-line change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173657 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25[Frontend] Remove another IsUserSpecified member variable that is now unused.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173412 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25[Frontend] Drop the isUserSupplied argument to InitHeaderSearch, it is unused.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173411 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25[Frontend] The -iwithprefix option belongs in the After category, according toDaniel Dunbar
GCC docs. - Found by inspection. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173410 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25[Lex] Remove DirectoryLookup.UserSpecified, which is unused.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173409 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Implement the reader of the global module index and wire it into theDouglas Gregor
AST reader. The global module index tracks all of the identifiers known to a set of module files. Lookup of those identifiers looks first in the global module index, which returns the set of module files in which that identifier can be found. The AST reader only needs to look into those module files and any module files not known to the global index (e.g., because they were (re)built after the global index), reducing the number of on-disk hash tables to visit. For an example source I'm looking at, we go from 237844 total identifier lookups into on-disk hash tables down to 126817. Unfortunately, this does not translate into a performance advantage. At best, it's a wash once the global module index has been built, but that's ignore the cost of building the global module index (which is itself fairly large). Profiles show that the global module index code is far less efficient than it should be; optimizing it might give enough of an advantage to justify its continued inclusion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173405 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Rename the -cc1 option "-generate-module-index" toDouglas Gregor
"-fmodules-global-index" and expand its behavior to include both the use and generation of the global module index. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173404 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24[analyzer] Replace "-analyzer-ipa" with "-analyzer-config ipa".Anna Zaks
The idea is to eventually place all analyzer options under "analyzer-config". In addition, this lays the ground for introduction of a high-level analyzer mode option, which will influence the default setting for IPAMode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173385 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Implement the writer side of the global module index. Douglas Gregor
The global module index is a "global" index for all of the module files within a particular subdirectory in the module cache, which keeps track of all of the "interesting" identifiers and selectors known in each of the module files. One can perform a fast lookup in the index to determine which module files will have more information about entities with a particular name/selector. This information can help eliminate redundant lookups into module files (a serious performance problem) and help with creating auto-import/auto-include Fix-Its. The global module index is created or updated at the end of a translation unit that has triggered a (re)build of a module by scraping all of the .pcm files out of the module cache subdirectory, so it catches everything. As with module rebuilds, we use the file system's atomicity to synchronize. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173301 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Use 'const Decl *' throughout code completion in SemaDmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173277 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Add a new LangOpt NativeHalfType. This option allows for native half/fp16Joey Gouly
operations (as opposed to storage only half/fp16). Also add some semantic checks for OpenCL half types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173254 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Documentation cleanup: fixing documentation for FrontendAction.James Dennett
* Fix a typo, s/BeginSourceAction/BeginSourceFile/, so that the documentation for FrontendAction::BeginSourceFileAction links correctly to BeginSourceFile; * Add some basic \file documentation for FrontendAction.h; * More use of "\brief" instead of repeating the name of the entity being documented; * Stop using Doxygen-style "///" comments in FrontendAction.cpp, as they were polluting the documentation for BeginSourceFile; * Drop incorrect "\see" markup that broke Doxygen's formatting; * Other minor documentation fixes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173213 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22[ms-inline asm] Remove the -fenable-experimental-ms-inline-asm flag. MS-styleChad Rosier
inline assembly can be enable with -fasm-blocks or -fms-extensions alone. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173186 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-21[ASTUnit] Unlike LoadFromCommandLine, LoadFromCompilerInvocation causes a ↵Argyrios Kyrtzidis
crash if Precompilepreamble is set to true because there is no FileManager at that point. Patch by Hurcan Solter! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173071 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-20Add top-level Clang flag -f(no-)sanitize-address-zero-base-shadow that makes ↵Alexey Samsonov
AddressSanitizer use bottom of the address space for the shadow memory. On Linux it can be used with -fPIE/-pie to improve performance. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172974 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-20Nuke SetUpBuildDumpLog.Sean Silva
Also, it was the only reason that `argc` and `argv` were being passed into createDiagnostics, so remove those parameters and clean up callers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172945 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-20Fix what appears to be a copy-paste error.Sean Silva
This looks like it was copied from SetUpBuildDumpLog, which dumps to the file `DiagOpts->DumpBuildInformation`. There is another member `DiagOpts->DiagnosticLogFile` which appears to be unused. The fact that this feature doesn't even print to the output file specified on the command line makes me think that it should be ripped out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172944 91177308-0d34-0410-b5e6-96231b3b80d8
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