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2013-04-20Supports Sourcery CodeBench Mips toolchain directories tree.Simon Atanasyan
Sourcery CodeBench and modern FSF Mips toolchains require a bit more complicated algorithm to calculate headers, libraries and sysroot paths than implemented by Clang driver now. The main problem is that all these paths depend on a set of command line arguments additionally to a target triple value. For example, let $TC is a toolchain installation directory. If we compile big-endian 32-bit mips code, crtbegin.o is in the $TC/lib/gcc/mips-linux-gnu/4.7.2 folder and the toolchain's linker requires --sysroot=$TC/mips-linux-gnu/libc argument. If we compile little-endian 32-bit soft-float mips code, crtbegin.o is in the $TC/lib/gcc/mips-linux-gnu/4.7.2/soft-float/el folder and the toolchain's linker requires --sysroot=$TC/mips-linux-gnu/libc/soft-float/el argument. 1. Calculate MultiarchSuffix using all necessary command line options and use this MultiarchSuffix to detect crtbegin.o location in the GCCInstallationDetector::ScanLibDirForGCCTriple() routine. 2. If a user does not provide --sysroot argument to the driver explicitly, calculate new sysroot value based on command line options. Then use this calculated sysroot path: a. To populate a file search paths list in the Linux::Linux() constructor. b. To find Mips toolchain specific include headers directories in the Linux::AddClangSystemIncludeArgs() routine. c. To provide -–sysroot argument for a linker. Note: - The FSF's tree slightly differs (folder names) and is not supported yet. - New addExternCSystemIncludeIfExits() routine is a temporary solution. I plan to move path existence check to the addExternCSystemInclude() routine by a separate commit. The patch reviewed by Rafael Espindola. http://llvm-reviews.chandlerc.com/D644 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179934 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-20[analyzer] Ensure BugReporterTracking works on regions with pointer arithmeticAnna Zaks
Introduce a new helper function, which computes the first symbolic region in the base region chain. The corresponding symbol has been used for assuming that a pointer is null. Now, it will also be used for checking if it is null. This ensures that we are tracking a null pointer correctly in the BugReporter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179916 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-20[analyzer] Flip printPretty and printPrettyAsExpr as per suggestion from ↵Anna Zaks
Jordan (r179572) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179915 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19[libclang] Make sure the preable does not truncate comments.Argyrios Kyrtzidis
rdar://13647445 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179907 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19Note that we support (and in fact have supported since the dawn of time itself)Richard Smith
C++1y binary literals. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179883 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19[ms-inline asm] The parsing of C++ identifiers is a task of the front-end ↵Chad Rosier
parser, not the asm parser. As such, begin moving the parsing logic in that direction. This patch is just a temporary hack until the real frontend parser can be hooked up. Part of rdar://13663589 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179882 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19Emit the underlying type in the debug info for all kinds of fixed enumsAdrian Prantl
instead of only C++11-scoped-with-class-tag enums. rdar://problem/13463793 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179879 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19Keep the parentheses in #pragma message (partial revert of r179771).Andy Gibbs
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179862 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19C++11 support is now feature-complete.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179861 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19Avoid names like __in that conflict with SAL in builtin headersReid Kleckner
Microsoft's Source Annotation Language (SAL) defines a bunch of keywords for annotating the inputs and outputs of functions. Empty definitions for the keywords are provided by <stdlib.h> -> <crtdefs.h> -> <sal.h>. This makes it basically impossible to include MSVC's stdlib.h and Clang's *mmintrin.h headers at the same time if they have variables named __in. As a workaround, I've renamed those variables. This fixes the Modules/compiler_builtins.m test which was XFAILed, presumably due to this conflict. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179860 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19Implement CodeGen for C++11 thread_local, following the Itanium ABI ↵Richard Smith
specification as discussed on cxx-abi-dev. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179858 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19[analyzer] Call proper callback for const regions escaped other then on call.Anton Yartsev
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179846 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19Revert "PR14606: Debug info for using directives/DW_TAG_imported_module"Eric Christopher
This reverts commit r179837 as it seems to be causing test failures. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179839 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19PR14606: Debug info for using directives/DW_TAG_imported_moduleDavid Blaikie
More changes later for using declarations/DW_TAG_imported_declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179837 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19Give CGDebugInfo::getContextDescriptor a more specific return typeDavid Blaikie
Not that the DI* hierarchy is terribly type safe, but this makes the contract a little clearer I think. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179835 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Objective-C++: Enable passing of modern C++11 style Fariborz Jahanian
initialized temporaries to objc++ methods. // rdar://12788429 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179818 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Add comment to describe cleverness.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179806 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Comment parsing: simplify code. As a side effect, this also silences GCC'sDmitri Gribenko
-Wunitnitialized warning. Patch by Rui Ueyama. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179794 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Objective-C parsing [qoi]: Provide good recovery whenFariborz Jahanian
Objective-C dictionary literals has bad syntax for the separator. // rdar://10679157 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179784 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18[CMake] Create the directory before creating the link to the clang headers.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179782 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18[analyzer] Refine 'nil receiver' diagnostics to mention the name of the ↵Ted Kremenek
method not called. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179776 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Dropped the parentheses for #pragma message and its kin in the -E output ↵Andy Gibbs
generator. This was a suggestion by Jordan Rose since the documented format for these pragmas is without the parentheses. At the same time, I've increased test coverage too for the preprocessed output. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179771 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18[analyzer] "Force" LazyCompoundVals on bind when they are simple enough.Jordan Rose
The analyzer uses LazyCompoundVals to represent rvalues of aggregate types, most importantly structs and arrays. This allows us to efficiently copy around an entire struct, rather than doing a memberwise load every time a struct rvalue is encountered. This can also keep memory usage down by allowing several structs to "share" the same snapshotted bindings. However, /lookup/ through LazyCompoundVals can be expensive, especially since they can end up chaining back to the original value. While we try to reuse LazyCompoundVals whenever it's safe, and cache information about this transitivity, the fact is it's sometimes just not a good idea to perpetuate LazyCompoundVals -- the tradeoffs just aren't worth it. This commit changes RegionStore so that binding a LazyCompoundVal to struct will do a memberwise copy if the struct is simple enough. Today's definition of "simple enough" is "up to N scalar members" (see below), but that could easily be changed in the future. This is enough to bring the test case in PR15697 back down to a manageable analysis time (within 20% of its original time, in an unfair test where the new analyzer is not compiled with LTO). The actual value of "N" is controlled by a new -analyzer-config option, 'region-store-small-struct-limit'. It defaults to "2", meaning structs with zero, one, or two scalar members will be considered "simple enough" for this code path. It's worth noting that a more straightforward implementation would do this on load, not on bind, and make use of the structure we already have for this: CompoundVal. A long time ago, this was actually how RegionStore modeled aggregate-to-aggregate copies, but today it's only used for compound literals. Unfortunately, it seems that we've special-cased LazyCompoundVal in certain places (such as liveness checks) but failed to similarly special-case CompoundVal in all of them. Until we're confident that CompoundVal is handled properly everywhere, this solution is safer, since the entire optimization is just an implementation detail of RegionStore. <rdar://problem/13599304> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179767 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18[analyzer] Don't crash if we cache out after making a temporary region.Jordan Rose
A C++ overloaded operator may be implemented as an instance method, and that instance method may be called on an rvalue object, which has no associated region. The analyzer handles this by creating a temporary region just for the evaluation of this call; however, it is possible that /by creating the region/, the analyzer ends up in a previously-explored state. In this case we don't need to continue along this path. This doesn't actually show any behavioral change now, but it starts being used with the next commit and prevents an assertion failure there. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179766 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Specify that we're parsing ms-style inline assembly.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179762 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Reject asm output constraints that consist of modifiers only.Benjamin Kramer
Fixes PR15759. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179756 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18[Parser] Handle #pragma pack/align inside C structs.Argyrios Kyrtzidis
Fixes PR13580. Patch by Serge Pavlov! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179743 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Switch the note order for -Woverloaded-shift-op-parentheses so that the noteRichard Trieu
with the silence fix-it comes first. This is more consistent with the rest of the warnings in -Wparentheses. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179742 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18[analyzer] Tweak getDerefExpr more to track DeclRefExprs to references.Anna Zaks
In the committed example, we now see a note that tells us when the pointer was assumed to be null. This is the only case in which getDerefExpr returned null (failed to get the dereferenced expr) throughout our regression tests. (There were multiple occurrences of this one.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179736 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17[analyzer] Improve dereferenced expression tracking for MemberExpr with a ↵Anna Zaks
dot and non-reference base git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179734 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17[analyzer] Gain more precision retrieving the right SVal by specifying the ↵Anna Zaks
type of the expression. Thanks to Jordan for suggesting the fix. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179732 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17[analyzer] Allow TrackConstraintBRVisitor to work when the value it’s ↵Anna Zaks
tracking is not live in the last node of the path We always register the visitor on a node in which the value we are tracking is live and constrained. However, the visitation can restart at a node, later on the path, in which the value is under constrained because it is no longer live. Previously, we just silently stopped tracking in that case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179731 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17[Modules] Use global index to improve typo correction performanceArgyrios Kyrtzidis
Typo correction for an unqualified name needs to walk through all of the identifier tables of all modules. When we have a global index, just walk its identifier table only. rdar://13425732 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179730 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Add support for gcc's spelling of -fcolor-diagnostics.Nico Weber
See http://gcc.gnu.org/onlinedocs/gcc/Language-Independent-Options.html git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179728 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17[document parsing]: When tag declaration (but not definition!) Fariborz Jahanian
is part of the decl-specifier-seq of some other declaration, it doesn't get comment. // rdar://12390371 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179722 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Fix off-by-one error in #pragma clang system_header.Jordan Rose
The system_header pragma (from GCC) is implemented using line notes in the source manager. However, a line note's line number specifies the number not for the current line, but for the next line. This was making all line numbers appear off by one after the pragma. Reported by Andy Gibbs, uncovered during r179677. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179709 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17PR15755: don't drop parameter packs when dropping parameters with defaultRichard Smith
arguments in the formation of a candidate set of inheriting constructors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179708 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Sema: Remove unused variable.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179701 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17[analyzer] Don't warn for returning void expressions in void blocks.Jordan Rose
This was slightly tricky because BlockDecls don't currently store an inferred return type. However, we can rely on the fact that blocks with inferred return types will have return statements that match the inferred type. <rdar://problem/13665798> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179699 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Unified token breaking logic: support for line comments.Alexander Kornienko
Summary: Added BreakableLineComment, moved common code from BreakableBlockComment to newly added BreakableComment. As a side-effect of the rewrite, found another problem with escaped newlines and had to change code which removes trailing whitespace from line comments not to break after this patch. Reviewers: klimek, djasper Reviewed By: klimek CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D682 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179693 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17DR974: Lambdas can have default arguments.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179688 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Implemented #pragma GCC warning/error in the same mould as #pragma message.Andy Gibbs
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179687 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Set SRet flags properly in '-cxx-abi microsoft'.Timur Iskhodzhanov
Also, - abstract out the indirect/in memory/in registers decisions into the CGCXXABI - fix handling of empty struct arguments for '-cxx-abi microsoft' - add/fix tests git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179681 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Fix PR15291: noreturn adjustment in overload resolution for function ↵Douglas Gregor
templates, from Alexander Zinenko! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179680 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Extended VerifyDiagnosticConsumer to also verify source file for diagnostic.Andy Gibbs
VerifyDiagnosticConsumer previously would not check that the diagnostic and its matching directive referenced the same source file. Common practice was to create directives that referenced other files but only by line number, and this led to problems such as when the file containing the directive didn't have enough lines to match the location of the diagnostic in the other file, leading to bizarre file formatting and other oddities. This patch causes VerifyDiagnosticConsumer to match source files as well as line numbers. Therefore, a new syntax is made available for directives, for example: // expected-error@file:line {{diagnostic message}} This extends the @line feature where "file" is the file where the diagnostic is generated. The @line syntax is still available and uses the current file for the diagnostic. "file" can be specified either as a relative or absolute path - although the latter has less usefulness, I think! The #include search paths will be used to locate the file and if it is not found an error will be generated. The new check is not optional: if the directive is in a different file to the diagnostic, the file must be specified. Therefore, a number of test-cases have been updated with regard to this. This closes out PR15613. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179677 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Add warning group -Woverloaded-shift-op-parentheses to -Wparentheses. ThisRichard Trieu
will fire on code such as: cout << x == 0; which the compiler will intrepret as (cout << x) == 0; This warning comes with two fixits attached to notes, one for parentheses to silence the warning, and another to evaluate the comparison first. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179662 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Correct the range returned by ParmVarDecl::getSourceRange(), for parameters ↵Argyrios Kyrtzidis
in ObjC methods with postfix types. For a parameter in a method like this: -(int)methodWithFn:(void (*)(int *p))fn; we would return the source range of the type and not include the parameter name. Fixes rdar://13668626. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179660 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Use the extra info in global method pool to speed up looking for ObjC ↵Argyrios Kyrtzidis
overridden methods. When we are in a implementation, we check the global method pool whether there were category methods with the same selector. If there were none (common case) we don't need to do lookups for overridden methods again. Note that for an interface method (if we don't encounter its implementation), it is considered that it overrides methods that were declared before it, not for category methods introduced after it. This is tradeoff in favor of performance, since it is expensive to do lookups in case there was a category, and moving the global method pool to ASTContext (so we can check it) would increase complexity. rdar://13508196 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179654 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17In ASTContext::getOverriddenMethods, call ↵Argyrios Kyrtzidis
overridden_methods_begin/overridden_methods_end directly. This avoids unnecessary Decl::getASTContext() invocations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179653 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Enhance the ObjC global method pool to record whether there were 0, 1, or >= ↵Argyrios Kyrtzidis
2 methods (with a particular selector) inside categories. This is done by extending ObjCMethodList (which is only used by the global method pool) to have 2 extra bits of information. We will later take advantage of this info in global method pool for the overridden methods calculation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179652 91177308-0d34-0410-b5e6-96231b3b80d8
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