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2012-09-15Use LLVM_DELETED_FUNCTION in place of 'DO NOT IMPLEMENT' comments.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163983 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-15const _Atomic(T) is not an atomic type, so do not allow it as the type 'A' inRichard Smith
C11 7.17's atomic operations. GNU's __atomic_* builtins do allow const-qualified atomics, though (!!) so don't restrict those. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163964 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-14objective-C arc: remove -Warc-abi in its entirety.Fariborz Jahanian
// rdar://10554025 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163917 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Promote the warning about extra qualification on a declaration from aDouglas Gregor
warning to an error. C++ bans it, and both GCC and EDG diagnose it as an error. Microsoft allows it, so we still warn in Microsoft mode. Fixes <rdar://problem/11135644>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163831 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Conditionally parse documentation comments in system headers byTed Kremenek
passing -fretain-comments-from-system-headers. By default, the compiler no longer parses such documentation comments, as they can result in a noticeable compile time/PCH slowdown. Fixes <rdar://problem/11860820>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163778 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12Revert "objective-C: warn under a flag if missing argument"Ted Kremenek
We plan on discussing this more, but we shouldn't have it in the compiler in an incomplete state. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163720 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12Revert "objective-C: warn if selector has nothing but bare"Ted Kremenek
We plan on discussing this more. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163719 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12PR13811: Add a FunctionParmPackExpr node to handle references to functionRichard Smith
parameter packs where the reference is not being expanded but the pack has been. Previously, Clang would segfault in such cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163672 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11objective-C: warn if selector has nothing but bareFariborz Jahanian
':' in its name. // rdar://8366823 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163650 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11objective-C: warn under a flag if missing argumentFariborz Jahanian
name results in unintended selector name. // rdar://12263549 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163634 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Thread-safety analysis: differentiate between two forms of analysis; a preciseDeLesley Hutchins
analysis that may give false positives because it is confused by aliasing, and a less precise analysis that has fewer false positives, but may have false negatives. The more precise warnings are enabled by -Wthread-safety-precise. An additional note clarify the warnings in the precise case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163537 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10objective-C: Improving diagnostocs for missing call toFariborz Jahanian
super's annotated methods. // rdar://6386358 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163517 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-08When a bad UTF-8 encoding or bogus escape sequence is encountered in aRichard Smith
string literal, produce a diagnostic pointing at the erroneous character range, not at the start of the literal. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163459 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-08Format strings: %Ld isn't available on Darwin or Windows.Jordan Rose
This seems to be a GNU libc extension; we offer a fixit to %lld on these platforms. <rdar://problem/11518237> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163452 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07objective-C: introduce __attribute((objc_requires_super)) on methodFariborz Jahanian
in classes. Use it to flag those method implementations which don't contain call to 'super' if they have 'super' class and it has the method with this attribute set. This is wip. // rdar://6386358 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163434 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06Clarified diagnostics for range-based for loops with invalid rangesSam Panzer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163350 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06Enabling the UTF conversion routines that were previously conditionally ↵Enrico Granata
ifdef'ed out. This change is required to support enhancements in the LLDB data formatters git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163331 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06Dont cast away const needlessly. Found by gcc48 -Wcast-qual.Roman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163325 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05Format strings: suggest casts for NS(U)Integer and [SU]Int32 on Darwin.Jordan Rose
These types are defined differently on 32-bit and 64-bit platforms, and trying to offer a fixit for one platform would only mess up the format string for the other. The Apple-recommended solution is to cast to a type that is known to be large enough and always use that to print the value. This should only have an impact on compile time if the format string is incorrect; in cases where the format string matches the definition on the current platform, no warning will be emitted. <rdar://problem/9135072&12164284> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163266 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05Allow disabling of wchar_t type.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163221 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-04Revert r163083 per chandlerc's request.Joao Matos
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163149 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-04Revert r163078 per chandlerc's request.Joao Matos
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163145 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-03Improved the warning for the #@ Microsoft charizing operator. The existing ↵Joao Matos
one misspelled the token as "@#" and didn't capitalize Microsoft. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163113 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-02Implemented parsing and AST support for the MS __leave exception statement. ↵Joao Matos
Also a minor fix to __except printing in StmtPrinter.cpp. Thanks to Aaron Ballman for review. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163083 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-02Include the diagnostic introduced in r163078 in a group.Joao Matos
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163079 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-02Added a diagnostic for mismatched MS inheritance attributes. Also fixed the ↵Joao Matos
incomplete type member pointer size calculation under the MS ABI. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163078 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31Normalize line endings of r163013 (part 2).Joao Matos
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163032 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31Update a warning to point to the DiagGroup created in DiagnosticGroups.tdRichard Trieu
instead of referring to the flag name. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163027 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31Improved MSVC __interface support by adding first class support for it, ↵Joao Matos
instead of aliasing to "struct" which had some incorrect behaviour. Patch by David Robins. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163013 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31Change the representation of builtin functions in the ASTEli Friedman
(__builtin_* etc.) so that it isn't possible to take their address. Specifically, introduce a new type to represent a reference to a builtin function, and a new cast kind to convert it to a function pointer in the operand of a call. Fixes PR13195. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162962 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-30objective-C ARC: under -Wexplicit-ownership-type diagnose thoseFariborz Jahanian
method parameter types which are reference to an objective-C pointer to object with no explicit ownership. // rdar://10907090 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162959 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-30Add -Wduplicate-enum warning. Clang will emit this warning when an implicitlyRichard Trieu
initiated enum constant has the same value as another enum constant. For instance: enum test { A, B, C = -1, D, E = 1 }; Clang will warn that: A and D both have value 0 B and E both have value 1 A few exceptions are made to keep the noise down. Enum constants which are initialized to another enum constant, or an enum constant plus or minus 1 will not trigger this warning. Also, anonymous enums are not checked. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162938 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-30Change -analyzer-config to use '=' as the key-value separator, and onlyTed Kremenek
support the '-analyzer-config key=val' variant. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162891 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-29Reversing the logic since C99 mode is actually not an extension. Also, ↵Aaron Ballman
changing the group to the singular to match the diagnostic better. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162838 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-29Add new -cc1 driver option -analyzer-config, which allows one to specifyTed Kremenek
a comma separated collection of key:value pairs (which are strings). This allows a general way to provide analyzer configuration data from the command line. No clients yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162827 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28Splitting the duplicated decl spec extension warning into two: one is an ↵Aaron Ballman
ExtWarn and the other a vanilla warning. This addresses PR13705, where const char const * wouldn't warn unless -pedantic was specified under the right conditions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162793 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28Warn about suspicious implicit conversions from floating point to boolHans Wennborg
This warns in two specific situations: 1) For potentially swapped function arguments, e.g. void foo(bool, float); foo(1.7, false); 2) Misplaced brackets around function call arguments, e.g. bool InRange = fabs(a - b < delta); Where the last argument in a function call is implicitly converted from bool to float, and the function returns a float which gets implicitly converted to bool. Patch by Andreas Eckleder! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162763 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Add a new base class, AsmStmt, for the GCCAsmStmt and MSAsmStmtChad Rosier
classes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162691 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27Support MIPS DSP Rev2 intrinsics.Simon Atanasyan
The patch reviewed by Akira Hatanaka. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162669 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27Tweak the ARC-requires-10.6 diagnostic according to Jordan's review.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162651 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-25[ms-inline asm] As part of a larger refactoring, rename AsmStmt to GCCAsmStmt.Chad Rosier
No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162632 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[ms-inline asm] Change the -fenable-experimental-ms-inline-asm option from a Chad Rosier
CodeGen option to a LangOpt option. In turn, hoist the guard into the parser so that we avoid the new (and fairly unstable) Sema/AST/CodeGen logic. This should restore the behavior of clang to that prior to r158325. <rdar://problem/12163681> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162602 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-22Make ceil/floor/nearbyint/rint/round const even with -fmath-errno.Benjamin Kramer
The conditions described by POSIX can never happen with IEEE-754 floats. When the function is const we can emit a single sse4.1 instruction for it, without losing anything :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162379 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-22Math builtin definition tweaks.Benjamin Kramer
There were missed optimizations when the system headers didn't have attributes in place, specifically: - Add copysign, exp2, log2, nearbyint, rint and trunc to the list. These are functions that get inlined by LLVM's optimizer, but only when they have the right attributes. - Mark copysign, fabs, fmax, fmin and trunc const unconditionally. Previously these were only const with -fno-math-errno, but they never set errno per POSIX. For ceil/floor/nearbyint/round I'm not aware of any implementation that sets errno, but POSIX says it may signal overflow so I left them alone for now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162375 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21Switch some realignment calculations over to llvm::RoundUpToAlignment.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162297 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21Screw around with ObjCRuntime some more, changing theJohn McCall
diagnostics for bad deployment targets and adding a few more predicates. Includes a patch by Jonathan Schleifer to enable ARC for ObjFW. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162252 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21Better diagnostics for range-based for loops with bad range types.Sam Panzer
The old error message stating that 'begin' was an undeclared identifier is replaced with a new message explaining that the error is in the range expression, along with which of the begin() and end() functions was problematic if relevant. Additionally, if the range was a pointer type or defines operator*, attempt to dereference the range, and offer a FixIt if the modified range works. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162248 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-20Better wording for reference self-initialization warning.Hans Wennborg
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162198 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17c: privide deprecated warning when __private_extern__ storageFariborz Jahanian
specifier is unsed in a declaration; as it may not make the symbol local to linkage unit as intended. Suggest using "hidden" visibility attribute instead. // rdar://7703982 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162138 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17Remove -Wbad-function-cast from -Wall.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162117 91177308-0d34-0410-b5e6-96231b3b80d8