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2013-03-21Fix a typo.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177626 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-21<rdar://problem/13037793> Allow the names of modules to differ from the name ↵Douglas Gregor
of their subdirectory in the include path. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177621 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20Documentation cleanup for MacroInfo.James Dennett
* Clarify what MacroInfo::isBuiltinMacro means, as it really means something more like "isMagicalMacro" or "requiresProcessingBeforeExpansion" -- the macros defined in "<built-in>" are not considered built-in by this function; * Escape __LINE__ as \__LINE__ in Doxygen comments so that the underscores don't get replaced by *bold* output; * Turn comments in MacroInfo.cpp into non-Doxygen comments, so that they don't result in duplicated/badly formatted Doxygen output; * Clean up a bunch of \brief formatting, and add a \file comment for MacroInfo.h. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177581 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20<rdar://problem/12368093> Extend module maps with a 'conflict' declaration, ↵Douglas Gregor
and warn when a newly-imported module conflicts with an already-imported module. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177577 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20[analyzer] Invalidate regions indirectly accessible through const pointers.Jordan Rose
In this case, the value of 'x' may be changed after the call to indirectAccess: struct Wrapper { int *ptr; }; void indirectAccess(const Wrapper &w); void test() { int x = 42; Wrapper w = { x }; clang_analyzer_eval(x == 42); // TRUE indirectAccess(w); clang_analyzer_eval(x == 42); // UNKNOWN } This is important for modelling return-by-value objects in C++, to show that the contents of the struct are escaping in the return copy-constructor. <rdar://problem/13239826> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177570 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20Objective-C [qoi] more gracefull recovery when Fariborz Jahanian
'}' is missing for the ivar declarations. // rdar://6854840 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177549 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20Remove the Tools DensMap from the toolchain.Rafael Espindola
Each toolchain has a set of tools, but they are all of known types. It can have a linker, an assembler, a "clang" (compile, analyze, ...) a non-clang compiler, etc. Instead of keeping a map, just have member variable for each type of tool. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177479 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20The flag "-coverage-function-names-in-data" is actually backwards -- we doNick Lewycky
emit function names in .gcda files by default, and the flag turns that off! Rename the flag to make it match what it actually does. This keeps the default format compatible with gcc 4.2. Also add a test for this flag. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177475 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20Make clang emit linkage names in debug info for subprograms when coverage infoNick Lewycky
is enabled. Also add a new -test-coverage cc1 flag which makes testing coverage possible and add our first clang-side coverage test. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177470 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20[analyzer] Break cycles (optionally) when trimming an ExplodedGraph.Jordan Rose
Having a trimmed graph with no cycles (a DAG) is much more convenient for trying to find shortest paths, which is exactly what BugReporter needs to do. Part of the performance work for <rdar://problem/13433687>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177468 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20<rdar://problem/10796651> Introduce configuration macros into module maps.Douglas Gregor
Configuration macros are macros that are intended to alter how a module works, such that we need to build different module variants for different values of these macros. A module can declare its configuration macros, in which case we will complain if the definition of a configation macro on the command line (or lack thereof) differs from the current preprocessor state at the point where the module is imported. This should eliminate some surprises when enabling modules, because "#define CONFIG_MACRO ..." followed by "#include <module/header.h>" would silently ignore the CONFIG_MACRO setting. At least it will no longer be silent about it. Configuration macros are eventually intended to help reduce the number of module variants that need to be built. When the list of configuration macros for a module is exhaustive, we only need to consider the settings for those macros when building/finding the module, which can help isolate modules for various project-specific -D flags that should never affect how modules are build (but currently do). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177466 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19Objective-C [qoi]: Provide improved parse diagnostics whenFariborz Jahanian
closing rbrace is missing in an ObjC class declaration. Can do beter than this, but it involves addition of overhead which will be present in correct code. // rdar://6854840 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177435 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19Add a clarifying note when a return statement is rejected becauseJohn McCall
we expect a related result type. rdar://12493140 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177378 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19Remove stray semicolonDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177370 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19Finish refactoring the tool selection logic.Rafael Espindola
The general pattern now is that Foobar::constructTool only creates tools defined in the tools::foobar namespace and then delegates to the parent. The remaining duplicated code is now in the tools themselves. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177368 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19<rdar://problem/13363214> Eliminate race condition between module rebuild ↵Douglas Gregor
and the global module index. The global module index was querying the file manager for each of the module files it knows about at load time, to prune out any out-of-date information. The file manager would then cache the results of the stat() falls used to find that module file. Later, the same translation unit could end up trying to import one of the module files that had previously been ignored by the module cache, but after some other Clang instance rebuilt the module file to bring it up-to-date. The stale stat() results in the file manager would trigger a second rebuild of the already-up-to-date module, causing failures down the line. The global module index now lazily resolves its module file references to actual AST reader module files only after the module file has been loaded, eliminating the stat-caching race. Moreover, the AST reader can communicate to its caller that a module file is missing (rather than simply being out-of-date), allowing us to simplify the module-loading logic and allowing the compiler to recover if a dependent module file ends up getting deleted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177367 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18documentation comment parsing. Added couple of Fariborz Jahanian
top-level HeaderDoc tags @functiongroup and @methodgroup to doc. tags recognized. // rdar://12379114 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177358 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Diagnose uses of 'alignof' on functions in -pedantic mode.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177354 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18[analyzer] Replace uses of assume() with isNull() in BR visitors.Jordan Rose
Also, replace a std::string with a SmallString. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177352 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Add missing diagnostic for a nested-name-specifier on a free-standing type ↵Richard Smith
definition. Bump some related diagnostics from warning to extension in C++, since they're errors there. Add some missing checks for function specifiers on non-function declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177335 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Bring inheriting constructor implementation up-to-date with current defectRichard Smith
reports, and implement implicit definition of inheriting constructors. Remaining missing features: inheriting constructor templates, implicit exception specifications for inheriting constructors, inheriting constructors from dependent bases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177320 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Centralize the recording of which tools have been constructed.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177319 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Remove unused argument.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177303 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Pass an ArgList to every toolchain constructor. Remove the useIntegratedAsRafael Espindola
argument. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177301 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Inline ShouldUseIntegratedAssembler and move the documentation toRafael Espindola
useIntegratedAs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177300 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Refactor a bit of duplicated code to useIntegratedAs.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177299 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Remove unused argument.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177293 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Remove unused argument.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177287 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18ObjCDictionaryElements are pod-like.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177282 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-16[analyzer] Model trivial copy/move assignment operators with a bind as well.Jordan Rose
r175234 allowed the analyzer to model trivial copy/move constructors as an aggregate bind. This commit extends that to trivial assignment operators as well. Like the last commit, one of the motivating factors here is not warning when the right-hand object is partially-initialized, which can have legitimate uses. <rdar://problem/13405162> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177220 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-16Remove -Wspellcheck and replace it with a diagnostic option.Argyrios Kyrtzidis
Thanks to Richard S. for pointing out that the warning would show up with -Weverything. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177218 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-16[analyzer] Eliminate InterExplodedGraphMap class and NodeBackMap typedef.Jordan Rose
...in favor of this typedef: typedef llvm::DenseMap<const ExplodedNode *, const ExplodedNode *> InterExplodedGraphMap; Use this everywhere the previous class and typedef were used. Took the opportunity to ArrayRef-ize ExplodedGraph::trim while I'm at it. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177215 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-15<rdar://problem/13426257> Introduce SDKSettings.plist as an input file ↵Douglas Gregor
dependency for PCH/modules. When we're building a precompiled header or module against an SDK on Darwin, there will be a file SDKSettings.plist in the sysroot. Since stat()'ing every system header on which a module or PCH file depends is performance suicide, we instead stat() just SDKSettings.plist. This hack works well on Darwin; it's unclear how we want to handle this on other platforms. If there is a canonical file, we should use it; if not, we either have to take the performance hit of stat()'ing system headers repeatedly or roll the dice by not checking anything. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177194 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-15Silence anonymous type in anonymous union warnings.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177133 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-14Don't try to typo-correct 'super' in an objc method.Argyrios Kyrtzidis
This created 2 issues: 1) Performance issue, since typo-correction with PCH/modules is rather expensive. 2) Correctness issue, since if it managed to "correct" 'super' then bogus compiler errors would be emitted, like this: 3.m:8:3: error: unknown type name 'super'; did you mean 'super1'? super.x = 0; ^~~~~ super1 t3.m:5:13: note: 'super1' declared here typedef int super1; ^ t3.m:8:8: error: expected identifier or '(' super.x = 0; ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177126 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-14[analyzer] Change the way in which IDC Visitor decides to kick in and make ↵Anna Zaks
sure it attaches in the given edge case In the test case below, the value V is not constrained to 0 in ErrorNode but it is in node N. So we used to fail to register the Suppression visitor. We also need to change the way we determine that the Visitor should kick in because the node N belongs to the ExplodedGraph and might not be on the BugReporter path that the visitor sees. Instead of trying to match the node, turn on the visitor when we see the last node in which the symbol is ‘0’. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177121 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-14Fix an unused variable warning from Clang by sinking a dyn_cast into anChandler Carruth
isa and a cast inside the assert. The efficiency concern isn't really important here. The code should likely be cleaned up a bit more, especially getting a message into the assert. Please review Rafael. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177053 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-14Add support for the 'endian' attribute for OpenCL.Joey Gouly
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177035 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-14Avoid computing the linkage too early. Don't invalidate it.Rafael Espindola
Before this patch we would compute the linkage lazily and cache it. When the AST was modified in ways that could change the value, we would invalidate the cache. That was fairly brittle, since any code could ask for the a linkage before the correct value was available. We should change the API to one where the linkage is computed explicitly and trying to get it when it is not available asserts. This patch is a first step in that direction. We still compute the linkage lazily, but instead of invalidating a cache, we assert that the AST modifications didn't change the result. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176999 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-13[Modules] Don't eagerly load and associate all the module header files.Argyrios Kyrtzidis
In a module-enabled Cocoa PCH file, we spend a lot of time stat'ing the headers in order to associate the FileEntries with their modules and support implicit module import. Use a more lazy scheme by enhancing HeaderInfoTable to store extra info about the module that a header belongs to, and associate it with its module only when there is a request for loading the header info for a particular file. Part of rdar://13391765 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176976 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-13[Modules] Resolve top-headers of modules lazily.Argyrios Kyrtzidis
This allows resolving top-header filenames of modules to FileEntries when we need them, not eagerly. Note that that this breaks ABI for libclang functions clang_Module_getTopLevelHeader / clang_Module_getNumTopLevelHeaders but this is fine because they are experimental and not widely used yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176975 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-12Revert "Revert r166370 and r166540 now that Xcode 4.6 has been available for ↵Bob Wilson
a while." This reverts commit 176887. Nico asked for more time to move to Xcode 4.6. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176892 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-12Objective-C: Issue warning in couple of obscure casesFariborz Jahanian
when property autosynthesis does not synthesize a property. When property is declared 'readonly' in a super class and is redeclared 'readwrite' in a subclass. When a property autosynthesis causes it to share 'ivar' with another property. // rdar://13388503 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176889 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-12Revert r166370 and r166540 now that Xcode 4.6 has been available for a while.Bob Wilson
Those changes were added as a temporary workaround for Xcode 4.5 passing the -Wno-arc-abi option. Xcode 4.6 does not pass that option so this should no longer be necessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176887 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-12Revert "Disallow using -fmodules with -no-integrated-as."Ted Kremenek
Per comment from Benjamin Kramer, this isn't portable (yet). I'll come up with a better fix. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176876 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-11Disallow using -fmodules with -no-integrated-as.Ted Kremenek
Modules enables features such as auto-linking, and we simply do not want to support a matrix of subtly enabled/disabled features depending on whether or not a user is using the integrated assembler. It isn't clear if this is the best place to do this check. For one thing, these kind of errors are not caught by the serialized diagnostics. Fixes <rdar://problem/13289240> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176826 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-11Add -Wc99-compat warning for C11 unicode string and character literals.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176817 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-09Handle _Pragma on a u8, u, or U string literal per the C11 specification. AlsoRichard Smith
handle raw string literals here. C++11 doesn't yet specify how they will behave, but discussion on core suggests that we should just strip off everything but the r-char-sequence. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176779 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-09Remove unused diagnostic.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176774 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-09[analyzer] Make Suppress IDC checker aware that it might not start from the ↵Anna Zaks
same node it was registered at The visitor used to assume that the value it’s tracking is null in the first node it examines. This is not true. If we are registering the Suppress Inlined Defensive checks visitor while traversing in another visitor (such as FindlastStoreVisitor). When we restart with the IDC visitor, the invariance of the visitor does not hold since the symbol we are tracking no longer exists at that point. I had to pass the ErrorNode when creating the IDC visitor, because, in some cases, node N is neither the error node nor will be visible along the path (we had not finalized the path at that point and are dealing with ExplodedGraph.) We should revisit the other visitors which might not be aware that they might get nodes, which are later in path than the trigger point. This suppresses a number of inline defensive checks in JavaScriptCore. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176756 91177308-0d34-0410-b5e6-96231b3b80d8