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path: root/lib/Sema/SemaCast.cpp
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2013-03-28Provide a fixit to static_cast for reinterpret_casts within a class hierarchy.Jordan Rose
The suggestion was already in the text of the note; this just adds the actual fixit and the appropriate test cases. Patch by Alexander Zinenko! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178274 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27Make the -Wreinterpret-base-class logic safe against invalidJohn McCall
declarations at any point. Patch by Alexander Zinenko, and report by Richard Smith. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178098 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-22Warn about attempts to reinterpret_cast between two types that areJohn McCall
hierarchy-related at a possibly nonzero offset. Patch by Alexander Zinenko! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177698 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22objective-C arg: provide fixit support whenFariborz Jahanian
c++'s named cast need be replaced for bridge casting. // rdar://12788838 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175923 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Diagnose loads of 'half' l-values in OpenCL.John McCall
Patch by Joey Gouly! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174928 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
2013-01-02s/CPlusPlus0x/CPlusPlus11/gRichard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171367 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13objc: DOn't complain if a (SEL) expression is typecastFariborz Jahanian
to (SEL). Fixes // rdar://12859590 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170058 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort all of Clang's files under 'lib', and fix up the broken headersChandler Carruth
uncovered. This required manually correcting all of the incorrect main-module headers I could find, and running the new llvm/utils/sort_includes.py script over the files. I also manually added quite a few missing headers that were uncovered by shuffling the order or moving headers up to be main-module-headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169237 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16Implement GCC's -Wint-to-pointer-cast.David Blaikie
This implementation doesn't warn on anything that GCC doesn't warn on with the exception of templates specializations (GCC doesn't warn, Clang does). The specific skipped cases (boolean, constant expressions, enums) are open for debate/adjustment if anyone wants to demonstrate that GCC is being overly conservative here. The only really obvious false positive I found was in the Clang regression suite's MPI test - apparently MPI uses specific flag values in pointer constants. (eg: #define FOO (void*)~0) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166039 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23Now that ASTMultiPtr is nothing more than a array reference, make it a ↵Benjamin Kramer
MutableArrayRef. This required changing all get() calls to data() and using the simpler constructors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162501 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23Rip out remnants of move semantic emulation and smart pointers in Sema.Benjamin Kramer
These were nops for quite a while and only lead to confusion. ASTMultiPtr now behaves like a proper dumb array reference. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162475 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17c: implement gcc's -Wbad-function-cast which warnsFariborz Jahanian
on unsafe cast of a c-function call. This is a C-only option. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162109 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-16objective-C: deprecate casts of ObjC's SELFariborz Jahanian
expressions except to void, void * and their qualified versions. // rdar://12107381 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162036 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-16Add correct parenthesis range to CXXConstructExprs insideDaniel Jasper
CXXFunctionalCastExprs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160252 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Fix Sema and IRGen for atomic compound assignment so it has the right ↵Eli Friedman
semantics when promotions are involved. (As far as I can tell, this only affects some edge cases.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158591 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-07Detecting illegal instantiations of abstract types when using a ↵Aaron Ballman
function-style cast. Fixed PR12658. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156271 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04Move Sema::RequireCompleteType() and Sema::RequireCompleteExprType()Douglas Gregor
off PartialDiagnostic. PartialDiagnostic is rather heavyweight for something that is in the critical path and is rarely used. So, switch over to an abstract-class-based callback mechanism that delays most of the work until a diagnostic is actually produced. Good for ~11k code size reduction in the compiler and 1% speedup in -fsyntax-only on the code in <rdar://problem/11004361>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156176 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-29PR9546, DR1268: A prvalue cannot be reinterpret_cast to an rvalue referenceRichard Smith
type. But a glvalue can be reinterpret_cast to either flavor of reference. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155789 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-11Unify naming of LangOptions variable/get function across the Clang stack ↵David Blaikie
(Lex to AST). The member variable is always "LangOpts" and the member function is always "getLangOpts". Reviewed by Chris Lattner git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-06Add clang support for new Objective-C literal syntax for NSDictionary, NSArray,Ted Kremenek
NSNumber, and boolean literals. This includes both Sema and Codegen support. Included is also support for new Objective-C container subscripting. My apologies for the large patch. It was very difficult to break apart. The patch introduces changes to the driver as well to cause clang to link in additional runtime support when needed to support the new language features. Docs are forthcoming to document the implementation and behavior of these features. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152137 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-25ArrayRef'ize various functions in the AST/Parser/Sema.Ahmed Charles
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151447 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Split reinterpret_casts of member pointers out from CK_BitCast; thisJohn McCall
is general goodness because representations of member pointers are not always equivalent across member pointer types on all ABIs (even though this isn't really standard-endorsed). Take advantage of the new information to teach IR-generation how to do these reinterprets in constant initializers. Make sure this works when intermingled with hierarchy conversions (although this is not part of our motivating use case). Doing this in the constant-evaluator would probably have been better, but that would require a *lot* of extra structure in the representation of constant member pointers: you'd really have to track an arbitrary chain of hierarchy conversions and reinterpretations in order to get this right. Ultimately, this seems less complex. I also wasn't quite sure how to extend the constant evaluator to handle foldings that we don't actually want to treat as extended constant expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150551 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-13Don't route explicit construction via list-initialization through the ↵Sebastian Redl
functional cast code path. It sometimes does the wrong thing, produces horrible error messages, and is just unnecessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150408 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-12Proper initializer list support for new expressions and type construct ↵Sebastian Redl
expressions. Array new still missing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150346 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-12Change the way we store initialization kinds so that all direct inits can ↵Sebastian Redl
distinguish between list and parens form. This allows us to correctly diagnose the last test cases from litb. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150343 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03C++ 5.2.10p2 has a note that mentions that, subject to all other restrictions,Chad Rosier
a cast to the same type is allowed so long as it does not cast away constness. Fix for PR11747. Patch by Aaron Ballman. Reviewed by Eli. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Remove unreachable code in Clang. (replace with llvm_unreachable where ↵David Blaikie
appropriate or when GCC requires it) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148292 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-16Some improvements to the handling of C11 atomic types:David Chisnall
- Add atomic-to/from-nonatomic cast types - Emit atomic operations for arithmetic on atomic types - Emit non-atomic stores for initialisation of atomic types, but atomic stores and loads for every other store / load - Add a __atomic_init() intrinsic which does a non-atomic store to an _Atomic() type. This is needed for the corresponding C11 stdatomic.h function. - Enables the relevant __has_feature() checks. The feature isn't 100% complete yet, but it's done enough that we want people testing it. Still to do: - Make the arithmetic operations on atomic types (e.g. Atomic(int) foo = 1; foo++;) use the correct LLVM intrinsic if one exists, not a loop with a cmpxchg. - Add a signal fence builtin - Properly set the fenv state in atomic operations on floating point values - Correctly handle things like _Atomic(_Complex double) which are too large for an atomic cmpxchg on some platforms (this requires working out what 'correctly' means in this context) - Fix the many remaining corner cases git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148242 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Fix some edge cases with C++ casts and placeholder expressions.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147984 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-29Revert r145244. It causes us to create broken ASTs with missing type informationRichard Smith
for some cast expressions. Original commit message: Removed useless ImplicitCast nodes in explicit cstyle and static casts git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145447 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-28Removed useless ImplicitCast nodes in explicit cstyle and static castsNicola Gigante
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145244 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-15Fixed a cut&paste error introduced in r141336.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144637 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31Add missing lvalue-to-rvalue conversion.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143364 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18-Wc++98-compat and -Wc++98-compat-pedantic warnings for Sema, part 1.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142419 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-17Teach the ARC compiler to not require __bridge casts whenJohn McCall
passing/receiving CF objects at +0 to/from Objective-C methods or audited C functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142219 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-17Add a helper function for determining whether an expressionJohn McCall
has placeholder type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142203 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Catch placeholder types in DefaultLvalueConversionJohn McCall
and DefaultFunctionArrayLvalueConversion. To prevent significant regression for should-this-be-a-call fixits, and to repair some such regression from the introduction of bound member placeholders, make those placeholder checks try to build calls appropriately. Harden the build-a-call logic while we're at it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141738 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Rename SemaCXXCast.cpp to SemaCast.cpp.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141686 91177308-0d34-0410-b5e6-96231b3b80d8
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