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2013-01-30[analyzer] Model trivial copy/move ctors with an aggregate bind.Jordan Rose
This is faster for the analyzer to process than inlining the constructor and performing a member-wise copy, and it also solves the problem of warning when a partially-initialized POD struct is copied. Before: CGPoint p; p.x = 0; CGPoint p2 = p; <-- assigned value is garbage or undefined After: CGPoint p; p.x = 0; CGPoint p2 = p; // no-warning This matches our behavior in C, where we don't see a field-by-field copy. <rdar://problem/12305288> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173951 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Documentation: fix link to ExecuteAction(), which was previously typoed asJames Dennett
"ExecutionAction()". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173948 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Comment parsing: resolve more named character referencesDmitri Gribenko
This reimplements r173850 with a better approach: (1) use a TableGen-generated matcher instead of doing a linear search; (2) avoid allocations for new strings by converting code points to string iterals with TableGen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173931 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
2013-01-30Semantic analysis and CodeGen support for C11's _Noreturn. This is modeled asRichard Smith
an attribute for consistency with our other noreturn mechanisms. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173898 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Unresolved lookups can have using declarations that refer toDouglas Gregor
unresolved using declarations. Fixes PR14768 / <rdar://problem/13030296>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173883 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
2013-01-30Provide a fixit for constexpr non-static data members.David Blaikie
If the member has an initializer, assume it was probably intended to be static and suggest/recover with that. If the member doesn't have an initializer, assume it was probably intended to be const instead of constexpr and suggest that. (if the attempt to apply these changes fails, don't make any suggestion & produce the same diagnostic experience as before. The only case where this can come up that I know of is with a mutable constexpr with an initializer, since mutable is incompatible with static (but it's already incompatible with const anyway)) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173873 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] Remove actual ImplicitExternC member variable.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173860 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[Doc parsing] Patch to parse Doxygen-supported HTML character Fariborz Jahanian
references to their UTIF-8 encoding. Reviewed offline by Doug. // rdar://12392215 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173850 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
2013-01-29Move -Wstatic-float-init fixit into a note & don't recover as if constexprDavid Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173841 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Move the token annotator into separate files.Daniel Jasper
No functional changes. Also removed experimental-warning from all of clang-format's files, as it is no longer accurate. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173830 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29[driver] Refactor the driver so that a failing commands doesn't preventChad Rosier
subsequent commands from being executed. The diagnostics generation isn't designed for this use case, so add a note to fix this in the very near future. For now, just generated the diagnostics for the first failing command. Part of rdar://12984531 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173825 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Allow all parameters on next line for function calls in Chrome.Daniel Jasper
The style guide only forbids this for function declarations. So, now someFunction( aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaa); Is allowed in Chromium mode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173806 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Add a diagnostic for an OpenCL kernel with a pointer pointer argument.Joey Gouly
Also refactor the surrounding code a little. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173791 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Produce a diagnostic if alignas is applied to an expression. Neither C11 norRichard Smith
C++11 allows that. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173789 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Downgrade 'attribute ignored when parsing type' from error to warning, to matchRichard Smith
the diagnostic's warn_ name. Switch some places (notably C++11 attributes) which really wanted an error over to a different diagnostic. Finally, suppress the diagnostic entirely for __ptr32, __ptr64 and __w64, to avoid producing diagnostics in important system headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173788 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Implement C++11 [dcl.align]p1 and C11 6.7.5/2 rules for alignas and _Alignas.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173779 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Propagate the spelling list index for an attribute across template ↵Richard Smith
instantiation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173768 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Treat alignas and _Alignas as keyword attributes. This allows us toRichard Smith
pretty-print them properly (modulo the more general badness in alignment attribute printing). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173752 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Actually remove the hack which was blocking the Borland-style attributes fromRichard Smith
working, and add the missing attribute spellings. This brings _pascal, _fastcall, _stdcall and _cdecl to life in -fborland-extensions mode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173749 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Replace AS_MSTypespec with AS_Keyword, for representing any attribute spelledRichard Smith
as a keyword. Rationalize existing attributes to use it as appropriate, and to not lie about some __declspec attributes being GNU attributes. In passing, remove a gross hack which was discarding attributes which we could handle. This results in us actually respecting the __pascal keyword again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173746 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Abstract the behavior of when to use base-class tail padding.John McCall
For fun, I added a comedy "actually obey the C++11 POD rules" option which nobody is allowed to use. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173744 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Finish semantic analysis for [[carries_dependency]] attribute.Richard Smith
This required plumbing through a new flag to determine whether a ParmVarDecl is actually a parameter of a function declaration (as opposed to a function typedef etc, where the attribute is prohibited). Weirdly, this attribute (just like [[noreturn]]) cannot be applied to a function type, just to a function declaration (and its parameters). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173726 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Undo my re-wording of the "ARC forbids Objective-C objects in ..."Douglas Gregor
error. Jordan is right. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173713 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Forbid the use of objects in unions in Objective-C++ ARC. FixesDouglas Gregor
<rdar://problem/13098104>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173708 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
2013-01-28ASTReader and profiling statistics indicate that implementing a methodDouglas Gregor
pool in the global module index is not worthwhile. Update comments to limit the scope of the global module index to identifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173705 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Add some more ASTReader statistics for global method pool lookups.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173702 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Back out r173689. It doesn't matter when we're building with Clang anyway.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173693 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Eliminate memory allocation from most invocations ofDouglas Gregor
ModuleManager::visit() by keeping a free list of the two data structures used to store state (a preallocated stack and a visitation number vector). Improves -fsyntax-only performance for my modules test case by 2.8%. Modules has pulled ahead by almost 10% with the global module index. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173692 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Don't put a function's return type on its own line in Google style.Daniel Jasper
This would be against the style guide: http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Function_Declarations_and_Definitions#Function_Declarations_and_Definitions Not sure what to do as a last resort if the function signature does not fit onto a single line in Google style .. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173690 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Note that SrcMgr::SLocEntry's are POD-like, so SmallVector can do aDouglas Gregor
better job with them. Shaves off 0.7% of -fparse-only time for a modules test case. Sure makes you wonder... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173689 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Print warning instead of error if optional ASan features are enabled w/o ↵Alexey Samsonov
specifying -fsanitize=address git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173670 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Add a -pedantic warning: an anonymous union within an anonymous union is notRichard Smith
permitted in standard C++, despite being silently accepted by many (all?) major C++ implementations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173643 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-27PR15067: Don't assert when a UCN appears in a C90 file.Jordan Rose
Unfortunately, we can't accept the UCN as an extension because we're required to treat it as two tokens for preprocessing purposes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173622 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Added ASTContext methods getIntPtrType and getUIntPtrType.Enea Zaffanella
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173581 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Constify getOptionalExplicitTemplateArgs()Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173575 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Constify some getters of DesignatedInitExprDmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173574 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Give a more informative error message when the dot or arrow operator is usedRichard Trieu
on a type. Currently, it gives a generic "expected unqualified-id" error. The new error message is "cannot use (dot|arrow) operator on a type". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173556 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Highlight various parts of the AST dump with color. Colors are controlled byRichard Trieu
-f(no-)color-diagnostics. In addition, dumpColor() function calls are added to force color printing. No structural changes to -ast-dump. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173548 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26[analyzer] bugreporter::getDerefExpr now takes a Stmt, not an ExplodedNode.Jordan Rose
This allows it to be used in places where the interesting statement doesn't match up with the current node. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173546 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26[analyzer] Add 'prune-paths' config option to disable path pruning.Jordan Rose
This should be used for testing only. Path pruning is still on by default. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173545 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26[analyzer] Rename PruneNullReturnPaths to SuppressNullReturnPaths.Jordan Rose
"Prune" is the term for eliminating pieces of a path that are not relevant to the user. "Suppress" means don't show that path at all. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173544 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Since we're stuck with realpath for the header <-> module mapping,Douglas Gregor
factor the realpath calls into FileManager::getCanonicalName() so we can cache the results of this epically slow operation. 5% speedup on my modules test, and realpath drops out of the profile. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173542 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Comment parsing: actually check for a block command after "\param x"Dmitri Gribenko
This fixes PR15068. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173539 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Preserve Sema::UndefinedInternals across PCH boundaries. FixesNick Lewycky
-Wundefined-internal warnings with PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173538 91177308-0d34-0410-b5e6-96231b3b80d8
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