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2009-11-17Adjust format attribute index for implicit object arguments. Fixes PR5521.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89113 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-16First part of changes to eliminate problems with cv-qualifiers andDouglas Gregor
sugared types. The basic problem is that our qualifier accessors (getQualifiers, getCVRQualifiers, isConstQualified, etc.) only look at the current QualType and not at any qualifiers that come from sugared types, meaning that we won't see these qualifiers through, e.g., typedefs: typedef const int CInt; typedef CInt Self; Self.isConstQualified() currently returns false! Various bugs (e.g., PR5383) have cropped up all over the front end due to such problems. I'm addressing this problem by splitting each qualifier accessor into two versions: - the "local" version only returns qualifiers on this particular QualType instance - the "normal" version that will eventually combine qualifiers from this QualType instance with the qualifiers on the canonical type to produce the full set of qualifiers. This commit adds the local versions and switches a few callers from the "normal" version (e.g., isConstQualified) over to the "local" version (e.g., isLocalConstQualified) when that is the right thing to do, e.g., because we're printing or serializing the qualifiers. Also, switch a bunch of Context.getCanonicalType(T1).getUnqualifiedType() == Context.getCanonicalType(T2).getQualifiedType() expressions over to Context.hasSameUnqualifiedType(T1, T2) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88969 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30warn about returning the address of a label.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85576 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-23Eliminate QualifiedDeclRefExpr, which captured the notion of aDouglas Gregor
qualified reference to a declaration that is not a non-static data member or non-static member function, e.g., namespace N { int i; } int j = N::i; Instead, extend DeclRefExpr to optionally store the qualifier. Most clients won't see or care about the difference (since QualifierDeclRefExpr inherited DeclRefExpr). However, this reduces the number of top-level expression types that clients need to cope with, brings the implementation of DeclRefExpr into line with MemberExpr, and simplifies and unifies our handling of declaration references. Extended DeclRefExpr to (optionally) store explicitly-specified template arguments. This occurs when naming a declaration via a template-id (which will be stored in a TemplateIdRefExpr) that, following template argument deduction and (possibly) overload resolution, is replaced with a DeclRefExpr that refers to a template specialization but maintains the template arguments as written. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84962 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-20Remove default argument for ImpCastExprToType. Add appropriate argument Eli Friedman
to all callers. Switch a few other users of CK_Unknown to proper cast kinds. Note that there are still some situations where we end up with CK_Unknown; they're pretty easy to find with grep. There are still a few missing conversion kinds, specifically pointer/int/float->bool and the various combinations of real/complex float/int->real/complex float/int. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84623 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25Fix checking for a null pointer constant when the expression itself isDouglas Gregor
value-dependent. Audit (and fixed) all calls to Expr::isNullPointerConstant() to provide the correct behavior with value-dependent expressions. Fixes PR5041 and a crash in libstdc++ <locale>. In the same vein, properly compute value- and type-dependence for ChooseExpr. Fixes PR4996. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82748 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-23implement support for __builtin_eh_return_data_regno on x86-32 and x86-64.Chris Lattner
This implements PR5034 and rdar://6836445. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82614 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-22Revert "Switch a few clients over to StringLiteral::getString.", this is ↵Daniel Dunbar
breaking some projects, but I don't have a test case yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82539 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-22Switch a few clients over to StringLiteral::getString.Daniel Dunbar
- Switching all of them out-of-my-current-scope-of-interest, sorry. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82515 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-21Change all the Type::getAsFoo() methods to specializations of Type::getAs().John McCall
Several of the existing methods were identical to their respective specializations, and so have been removed entirely. Several more 'leaf' optimizations were introduced. The getAsFoo() methods which imposed extra conditions, like getAsObjCInterfacePointerType(), have been left in place. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82501 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-12Remove unnecessary ASTContext parameter from FunctionDecl::isBuiltinIDDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81590 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Remove tabs, and whitespace cleanups.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81346 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08reject returning a block expr even when it has parens and casts in the way.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81176 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Eliminate CXXAdornedMemberExpr entirely. Instead, optionally allocateDouglas Gregor
space within the MemberExpr for the nested-name-specifier and its source range. We'll do the same thing with explicitly-specified template arguments, assuming I don't flip-flop again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80642 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Rename CXXQualifiedMemberExpr -> CXXAdornedMemberExpr, since we willDouglas Gregor
also be adding explicit template arguments as an additional "adornment". No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80628 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31PR4836, part 1: add Sema support for __builtin_isnan and friends; they Eli Friedman
are apparently used by Solaris libc despite the fact that clang claims to be compatible with gcc 4.2, which doesn't support them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26When a member reference expression includes a qualifier on the memberDouglas Gregor
name, e.g., x->Base::f() retain the qualifier (and its source range information) in a new subclass of MemberExpr called CXXQualifiedMemberExpr. Provide construction, transformation, profiling, printing, etc., for this new expression type. When a virtual function is called via a qualified name, don't emit a virtual call. Instead, call that function directly. Mike, could you add a CodeGen test for this, too? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80167 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26update to CXXFunctionalCastExpr to support ir-gen forFariborz Jahanian
type convesions of class objects [class.conv]. WIP. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80127 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17Initial patch to support definitions of id and Class from headers in ↵David Chisnall
Objective-C code. This currently breaks test/SemaObjC/id-isa-ref.m and issues some spurious warnings when you attempt to assign a struct objc_class* value to a Class variable. The test case probably should fail as it's written, because without the definition of Class the compiler should not assume struct objc_class* is a valid receiver type, but it's left broken because it would be nice if we could get that passing too for the special case of isa. Approved by snaroff. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79248 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-16Move builtin call checking out into a separate function, make ↵Anders Carlsson
CheckFunctionCall and CheckBlockCall return bool instead. No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79157 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12Fix a fixme by allocating ShuffleVectorExprs in the ContextNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78780 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-07More CastKind work.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78415 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06add support for FreeBSD's format(printf0,x,y) attribute; allows null format ↵Ryan Flynn
string. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78276 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-04Canonicalize else.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78102 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Add CK_DerivedToBase and use it PerformObjectMemberConversion.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77652 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Change uses of:Ted Kremenek
Type::getAsReferenceType() -> Type::getAs<ReferenceType>() Type::getAsRecordType() -> Type::getAs<RecordType>() Type::getAsPointerType() -> Type::getAs<PointerType>() Type::getAsBlockPointerType() -> Type::getAs<BlockPointerType>() Type::getAsLValueReferenceType() -> Type::getAs<LValueReferenceType>() Type::getAsRValueReferenceType() -> Type::getAs<RValueReferenceType>() Type::getAsMemberPointerType() -> Type::getAs<MemberPointerType>() Type::getAsReferenceType() -> Type::getAs<ReferenceType>() Type::getAsTagType() -> Type::getAs<TagType>() And remove Type::getAsReferenceType(), etc. This change is similar to one I made a couple weeks ago, but that was partly reverted pending some additional design discussion. With Doug's pending smart pointer changes for Types, it seemed natural to take this approach. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Per offline discussion with Steve Naroff, add back Type::getAsXXXType() methodsTed Kremenek
until Doug Gregor's Type smart pointer code lands (or more discussion occurs). These methods just call the new Type::getAs<XXX> methods, so we still have reduced implementation redundancy. Having explicit getAsXXXType() methods makes it easier to set breakpoints in the debugger. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16Add member template 'Type::getAs<T>', which converts a Type* to a respective T*.Ted Kremenek
This method is intended to eventually replace the individual Type::getAsXXXType<> methods. The motivation behind this change is twofold: 1) Reduce redundant implementations of Type::getAsXXXType() methods. Most of them are basically copy-and-paste. 2) By centralizing the implementation of the getAs<Type> logic we can more smoothly move over to Doug Gregor's proposed canonical type smart pointer scheme. Along with this patch: a) Removed 'Type::getAsPointerType()'; now clients use getAs<PointerType>. b) Removed 'Type::getAsBlockPointerTypE()'; now clients use getAs<BlockPointerType>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30Remove the ASTContext parameter from the attribute-related methods of Decl.Argyrios Kyrtzidis
The implementations of these methods can Use Decl::getASTContext() to get the ASTContext. This commit touches a lot of files since call sites for these methods are everywhere. I used pre-tokenized "carbon.h" and "cocoa.h" headers to do some timings, and there was no real time difference between before the commit and after it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74501 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-28Move the check for vprintf* functions inside of SemaCheckStringLiteral. ↵Anders Carlsson
Fixes PR4470. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74413 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27Implement support for the format_arg attribute. Fixes PR4442.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74369 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18Move the static DeclAttrs map into ASTContext. Fixes <rdar://problem/6983177>.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-02PR4142: Add %m format string specifier.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72726 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-25tweak non-null check to put the caret on the function, but underline theChris Lattner
argument. This avoids the argument from being silenced when the argument is the NULL macro, which is defined in a system header. This also makes the output a bit nicer, e.g.: t.c:8:3: warning: null passed to a callee which requires a non-null argument func1(NULL, cp2, i1); ^ ~~~~ vs something like: t.c:8:10: warning: argument is null where non-null is required func1(NULL, cp2, i1); ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72393 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-21Check on null arguments in the presense of nonnull attribute.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72219 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-20add header to be built by gcc 4.3 on Linux.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72158 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-19Template instantiation for __builtin_shufflevector.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72139 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-18more printf attribute on block declaration andFariborz Jahanian
checking when block is envoked. In progress. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72039 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13Fix <rdar://problem/6880975> [format string] Assertion failed: (Arg < ↵Ted Kremenek
NumArgs && "Arg access out of range!"). For format string checking, only check the type of the format specifier for non-vararg functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71672 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13add support for __sync_nand_and_fetch and __sync_fetch_and_nand,Chris Lattner
rdar://6880573 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71636 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08Fix the atomics sema code to convert operands to the argument typesChris Lattner
of the underlying _N builtin, not the the type of the pointee of the actual type. This ensures that atomics involving pointers end up using the correct integer type when they are resolved, avoiding aborts in codegen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71218 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08reimplement __sync_* builtins to be variadic and to follow the sameChris Lattner
semantic rules that gcc and icc use. This implements the variadic and concrete versions as builtins and has sema do the disambiguation. There are probably a bunch of details to finish up but this seems like a large monotonic step forward :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71212 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-03Fix silly mistake that was breaking tests. Sorry for any inconvenience.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70664 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-03Add Sema support for __builtin_setjmp/__builtin_longjmp. The primary Eli Friedman
reason for adding these is to error out in CodeGen when trying to generate them instead of silently emitting a call to a non-existent function. (Note that it is not valid to lower these to setjmp/longjmp; in addition to that lowering being different from the intent, setjmp and longjmp require a larger buffer.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70658 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29implement -Wformat-security properly, which is enabled by default.Chris Lattner
This enables one specific class of non-literal format warnings. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70368 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29code simplification, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70367 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29minor code cleanupChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70361 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17Fixup semantic analysis for nested blocks, and allow block literalMike Stump
expressions that can be of static duration to be returned. Radar 6786551 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69331 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15Fix <rdar://problem/6786597> varargs not supported for Blocks under clang.Steve Naroff
Teach Sema::SemaBuiltinVAStart() about blocks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69201 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13Move/update recent FIXME (wrt UTF-8 checking for ObjC @-strings).Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68982 91177308-0d34-0410-b5e6-96231b3b80d8
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