etc and make freestanding imply it.

llvm-svn: 66972

  - C++ function casts, e.g., T(foo)
  - sizeof(), alignof()

More importantly, this allows us to verify that we're performing
overload resolution during template instantiation, with
argument-dependent lookup and the "cached" results of name lookup from
the template definition.

llvm-svn: 66947

instantiation for binary operators. This change moves most of the
operator-overloading code from the parser action ActOnBinOp to a new,
parser-independent semantic checking routine CreateOverloadedBinOp. 

Of particular importance is the fact that CreateOverloadedBinOp does
*not* perform any name lookup based on the current parsing context (it
doesn't take a Scope*), since it has to be usable during template
instantiation, when there is no scope information. Rather, it takes a
pre-computed set of functions that are visible from the context or via
argument-dependent lookup, and adds to that set any member operators
and built-in operator candidates. The set of functions is computed in
the parser action ActOnBinOp based on the current context (both
operator name lookup and argument-dependent lookup). Within a
template, the set computed by ActOnBinOp is saved within the
type-dependent AST node and is augmented with the results of
argument-dependent name lookup at instantiation time (see
TemplateExprInstantiator::VisitCXXOperatorCallExpr).

Sadly, we can't fully test this yet. I'll follow up with template
instantiation for sizeof so that the real fun can begin.

llvm-svn: 66923

llvm-svn: 66909

Also changed BlockDecl API to be more consistent (wrt FunctionDecl).

llvm-svn: 66904

llvm-svn: 66837

be CompoundStmts. I think this is a valid assumption, and felt that the API
should reflect it. Others please validate this assumption to make sure I didn't
break anything.

llvm-svn: 66814

llvm-svn: 66738

llvm-svn: 66732

llvm-svn: 66696

not be consulted for its size expression when operator* was called in the
StmtIterator (this resulted in an assertion failure).

llvm-svn: 66679

llvm-svn: 66618

llvm-svn: 66614

Sema/asm.c:64:9: error: invalid % escape in inline assembly string
  asm("%!" : );   // expected-error {{invalid % escape in inline assembly string}}
      ~~^~

llvm-svn: 66606

llvm-svn: 66605

translation unit.

Thread the various declarations of variables via
VarDecl::getPreviousDeclaration.

llvm-svn: 66601

llvm-svn: 66598

code where Sema can get to it.  No functionality change.

llvm-svn: 66596

context of a template-id for which we need to instantiate default
template arguments.

In the TextDiagnosticPrinter, don't suppress the caret diagnostic if
we are producing a non-note diagnostic that follows a note diagnostic
with the same location, because notes are (conceptually) a part of the
warning or error that comes before them.

llvm-svn: 66572

  'struct A<double, int>'

In the "template instantiation depth exceeded" message, print
"-ftemplate-depth-N" rather than "-ftemplate-depth=N".

An unnamed tag type that is declared with a typedef, e.g., 

  typedef struct { int x, y; } Point;

can be used as a template argument. Allow this, and check that we get
sensible pretty-printing for such things.

llvm-svn: 66560

When pretty-printing an anonymous tag type that is associated with a typedef, use the name of the typedef rather than <anonymous>

llvm-svn: 66559

llvm-svn: 66555

time handle + operands in operand counting, fixing asm.c:t7 to
expand into $2 instead of $1.

llvm-svn: 66531

llvm-svn: 66521

such as replacing 'T' in vector<T>. There are a few aspects to this:

  - Extend TemplateArgument to allow arbitrary expressions (an
    Expr*), and switch ClassTemplateSpecializationType to store
    TemplateArguments rather than it's own type-or-expression
    representation.

  - ClassTemplateSpecializationType can now store dependent types. In
    that case, the canonical type is another
    ClassTemplateSpecializationType (with default template arguments
    expanded) rather than a declaration (we don't build Decls for
    dependent types).

  - Split ActOnClassTemplateId into ActOnClassTemplateId (called from
    the parser) and CheckClassTemplateId (called from
    ActOnClassTemplateId and InstantiateType). They're smart enough to
    handle dependent types, now.

llvm-svn: 66509

for future use.

llvm-svn: 66184

Introduce a new PrettyStackTraceDecl.
Use it to add the top level LLVM IR generation stuff in 
Backend.cpp to stack traces.  We now get crashes like:

Stack dump:
0.	Program arguments: clang t.c -emit-llvm 
1.	<eof> parser at end of file
2.	t.c:1:5: LLVM IR generation of declaration 'a'
Abort

for IR generation crashes.

llvm-svn: 66153

decls.  This reduces the number of calls to malloc on cocoa.h with pth and
-disable-free from 15958 to 12444 times (down ~3500).

llvm-svn: 66023

this, make DeclBase::Destroy destroy attributes instead of the DeclBase dtor.

llvm-svn: 66020

chosen sub-expression, rather than just evaluating the condition.

llvm-svn: 66018

multiple sequential case statements instead of doing it with recursion.  This
fixes a problem where we run out of stack space parsing 100K directly nested
cases.

There are a couple other problems that prevent this from being useful in 
practice (right now the example only parses correctly with -disable-free and
doesn't work with -emit-llvm), but this is a start.

I'm not including a testcase because it is large and uninteresting for 
regtesting.

Sebastian, I would appreciate it if you could scrutinize the smart pointer 
gymnastics I do.

llvm-svn: 66011

Also necessary to fix:

<rdar://problem/6632061> [sema] non object types should not be allowed in @catch statements
<rdar://problem/6252237> [sema] qualified id should be disallowed in @catch statements

llvm-svn: 65964

response to attempts to diagnose an "incomplete" type. This will force
us to use DiagnoseIncompleteType more regularly (rather than looking at
isIncompleteType), but that's also a good thing.

Implicit instantiation is still very simplistic, and will create a new
definition for the class template specialization (as it should) but it
only actually instantiates the base classes and attaches
those. Actually instantiating class members will follow. 

Also, instantiate the types of non-type template parameters before
checking them,  allowing, e.g., 

  template<typename T, T Value> struct Constant; 
 
to work properly.

llvm-svn: 65924

llvm-svn: 65884

need them to evaluate redeclarations or call a function that hasn't
already been declared. We now keep a DenseMap of these locally-scoped
declarations so that they are not visible but can be quickly found,
e.g., when we're looking for previous declarations or before we go
ahead and implicitly declare a function that's being called. Fixes
PR3672.

llvm-svn: 65792

Fix <rdar://problem/6619539> incompatible pointer types sending 'XCElementSpacer *', expected 'XCElement *' (not handling protocol signatures correctly?).

- Reworked ASTContext::canAssignObjCInterfaces().
- Added ObjCProtocolDecl::lookupProtocolNamed().

llvm-svn: 65773

llvm-svn: 65759

/// FIXME: Like ObjCImplementationDecl, this should not be a NamedDecl!
/// FIXME: Introduce a new common base class for ObjCImplementationDecl and ObjCCategoryImplDecl

It adds an IndentifierInfo ivar to the ObjCCategoryImplDecl, so it can inherits from Decl and not NamedDecl (I'm not sure about the memory management of this ivar).

And now that both ObjCImplementationDecl and ObjCCategoryImplDecl have the same super classes, it allow creation of a common base class:  ObjCImplDecl"

Patch by Jean-Daniel Dupas!

llvm-svn: 65703

integer __real__ and __imag__.  Not sure how I missed this.

llvm-svn: 65677

llvm-svn: 65671