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path: root/lib/AST/Expr.cpp
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2010-02-03Numerous changes to selector handling:David Chisnall
- Don't use GlobalAliases with non-0 GEPs (GNU runtime) - this was unsupported and LLVM will be generating errors if you do it soon. This also simplifies the code generated by the GNU runtime a bit. - Make GetSelector() return a constant (GNU runtime), not a load of a store of a constant. - Recognise @selector() expressions as valid static initialisers (as GCC does). - Add methods to GCObjCRuntime to emit selectors as constants (needed for using @selector() expressions as constants. These need implementing for the Mac runtimes - I couldn't figure out how to do this, they seem to require a load. - Store an ObjCMethodDecl in an ObjCSelectorExpr so that we can get at the type information for the selector. This is needed for generating typed selectors from @selector() expressions (as GCC does). Ideally, this information should be stored in the Selector, but that would be an invasive change. We should eventually add checks for common uses of @selector() expressions. Possibly adding an attribute that can be applied to method args providing the types of a selector so, for example, you'd do something like this: - (id)performSelector: __attribute__((selector_types(id, SEL, id)))(SEL) withObject: (id)object; Then, any @selector() expressions passed to the method will be check to ensure that it conforms to this signature. We do this at run time on the GNU runtime already, but it would be nice to do it at compile time on all runtimes. - Made @selector() expressions emit type info if available and the runtime supports it. Someone more familiar with the Mac runtime needs to implement the GetConstantSelector() function in CGObjCMac. This currently just assert()s. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95189 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Remove abstract expression kinds from the StmtClass enum. Update a few usersJohn McCall
appropriately. Call out a few missing cases in the expression mangler. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95176 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01In C++, an initializer on a variable doesn't necessarily mean it's the ↵Sebastian Redl
definition. With that in mind, rename getDefinition to getAnyInitializer (to distinguish it from getInit) and reimplement it in terms of isThisDeclarationADefinition. Update all code to use this new function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94999 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-31Diagnose binding a non-const reference to a vector element.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29Fix reference binding of const lvalue references to bit-fields, whichDouglas Gregor
requires a temporary. Previously, we were building an initialization sequence that bound to the bit-field as if it were a real lvalue. Note that we previously (and still) diagnose binding of non-const references to bit-fields, as we should. There's no real way to test that this code is correct, since reference binding does not *currently* have any representation in the AST. This fix should make it easier for that to happen, so I've verified this fix with... Added InitializationSequence::dump(), to print an initialization sequence for debugging purposes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94826 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29Add an CXXBindReferenceExpr (not used just yet).Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94791 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-15When determining whether a DeclRefExpr is value-dependent when itDouglas Gregor
references a const variable of integral type, the initializer may be in a different declaration than the one that name-lookup saw. Find the initializer anyway. Fixes PR6045. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93514 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-06Move the allocation of designators in DesignatedInitExpr to theDouglas Gregor
ASTContext. Fixes <rdar://problem/7495428>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92867 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-30Make sure to explicitly pass type/value dependence to Expr constructor. ThisEli Friedman
caught several cases where we were not doing the right thing. I'm not completely sure all cases are being handled correctly, but this should be an improvement. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92281 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-27Fix for PR5872. Add static specifier and const/volatile qualifiers to member ↵Sam Weinig
functions in __PRETTY_FUNCTION__ predefined expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92171 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24support the warn_unused_result in C++ class methodsNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92095 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-21indentation fixChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91807 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-20fix PR4010: add support for the warn_unused_result for function pointersNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91803 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-19A CXXExprWithTemporaries expression is an lvalue if its subexpressionDouglas Gregor
is an lvalue. Fixes PR5787. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91765 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15Diagnose attempting to assign to a sub-structure of an ivarFariborz Jahanian
using objective-c property. (fixes radar 7449707) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91474 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-14Improve template instantiation for object constructions in several ways:Douglas Gregor
- During instantiation, drop default arguments from constructor and call expressions; they'll be recomputed anyway, and we don't want to instantiate them twice. - Rewrote the instantiation of variable initializers to cope with non-dependent forms properly. Together, these fix a handful of problems I introduced with the switch to always rebuild expressions from the source code "as written." git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91315 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-12Un-namespace-qualify llvm_unreachable. It's a macro, so the qualification gaveJeffrey Yasskin
no extra safety anyway. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91207 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-11Patch to allow C-style cast from 'void *' to block pointer type.Fariborz Jahanian
(fixes radar 7465023). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91171 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-09Code gen for ObjCIsaExpr AST used as lvalue.Fariborz Jahanian
(fixes radar 7457534). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90995 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-08Added a missing case to a switch statement.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90902 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-08DeclRefExpr stores a ValueDecl internally.John McCall
Template instantiation can re-use DeclRefExprs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90848 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-06Don't print a void return type for C++ constructors and destructors when ↵Sam Weinig
generating a predefined expr for them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90725 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-04Make the type of the Decl referred to by a MemberExpr a bit more precise.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90549 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03Add recursion guards to ice-checking and evaluation for declrefs, so weEli Friedman
don't infinitely recurse for cases we can't evaluate. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90480 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02r90313, in which OverloadedFunctionDecl is removed and never spoken of again.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90313 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30Eliminate the use of OverloadedFunctionDecl in member expressions.John McCall
Create a new UnresolvedMemberExpr for these lookups. Assorted hackery around qualified member expressions; this will all go away when we implement the correct (i.e. extremely delayed) implicit-member semantics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90161 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-25Eliminate CXXConditionDeclExpr with extreme prejudice.Douglas Gregor
All statements that involve conditions can now hold on to a separate condition declaration (a VarDecl), and will use a DeclRefExpr referring to that VarDecl for the condition expression. ForStmts now have such a VarDecl (I'd missed those in previous commits). Also, since this change reworks the Action interface for if/while/switch/for, use FullExprArg for the full expressions in those expressions, to ensure that we're emitting Note that we are (still) not generating the right cleanups for condition variables in for statements. That will be a follow-on commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89817 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-24Rip out TemplateIdRefExpr and make UnresolvedLookupExpr and John McCall
DependentScopeDeclRefExpr support storing templateids. Unite the common code paths between ActOnDeclarationNameExpr and ActOnTemplateIdExpr. This gets us to a point where we don't need to store function templates in the AST using TemplateNames, which is critical to ripping out OverloadedFunction. Also resolves a few FIXMEs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89785 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23Handle converting member pointers to bool.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89692 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23Centralize and complete the computation of value- and type-dependence for ↵Douglas Gregor
DeclRefExprs git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89649 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23Encapsulate "an array of TemplateArgumentLocs and two angle bracket ↵John McCall
locations" into a new class. Use it pervasively throughout Sema. My fingers hurt. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89638 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21"Incremental" progress on using expressions, by which I mean totally rippingJohn McCall
into pretty much everything about overload resolution in order to wean BuildDeclarationNameExpr off LookupResult::getAsSingleDecl(). Replace UnresolvedFunctionNameExpr with UnresolvedLookupExpr, which generalizes the idea of a non-member lookup that we haven't totally resolved yet, whether by overloading, argument-dependent lookup, or (eventually) the presence of a function template in the lookup results. Incidentally fixes a problem with argument-dependent lookup where we were still performing ADL even when the lookup results contained something from a block scope. Incidentally improves a diagnostic when using an ObjC ivar from a class method. This just fell out from rewriting BuildDeclarationNameExpr's interaction with lookup, and I'm too apathetic to break it out. The only remaining uses of OverloadedFunctionDecl that I know of are in TemplateName and MemberExpr. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89544 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19Deduce a ConstantArrayType from a value-dependent initializer listDouglas Gregor
rather than punting to a DependentSizedArrayType, tightening up our type checking for template definitions. Thanks, John! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89407 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19Draw a brighter line between "unresolved" expressions, where we have done theJohn McCall
appropriate lookup and simply can't resolve the referrent yet, and "dependent scope" expressions, where we can't do the lookup yet because the entity we need to look into is a dependent type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89402 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Fix PR5531.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89106 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Add a CK_BaseToDerived cast kind.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86994 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03Refine volatile handling, specifically, we must have the canonicalMike Stump
type to look at the volatile specifier. I found these all from just hand auditing the code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85967 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01When determining whether a reference to a static data member is anDouglas Gregor
integral constant expression, make sure to find where the initializer was provided---inside or outside the class definition---since that can affect whether we have an integral constant expression (and, we need to see the initializer itself). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85741 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30Add a CK_DerivedToBaseMemberPointer cast kind and use it in Sema (Still no ↵Anders Carlsson
codegen). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85552 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-29Track source information for template arguments and template specializationJohn McCall
types. Preserve it through template instantiation. Preserve it through PCH, although TSTs themselves aren't serializable, so that's pretty much meaningless. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85500 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-24Fix overload resolution when calling a member template or taking theDouglas Gregor
address of a member template when explicit template arguments are provided. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84991 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
2009-10-18PR5218: Replace IdentifierInfo::getName with StringRef version, now that clientsDaniel Dunbar
are updated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84447 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18Add FloatingCast to getCastKindName's list.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84427 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18Add some more cast kinds.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84423 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18Switch ExtVectorElementExpr::getEncodedElementAccess to use StringRef.Daniel Dunbar
- Really this should be simplified by the FIXME above, but I'm too deep in DFS. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84392 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18Add FIXME... maybe Nate will get bored? :)Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84389 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Simplify ExtVectorElementExpr::containsDuplicateElements().Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84380 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16Add CK_VectorSplat and use it for casting non-pointer scalars to ExtVectors.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84245 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16Add a ToVoid cast kind and start using it.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84241 91177308-0d34-0410-b5e6-96231b3b80d8
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