Downgrade an error to a warning (for GCC compatibility).

llvm-svn: 65779

llvm-svn: 65777

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: 65764

llvm-svn: 65763

llvm-svn: 65762

exception typeinfo metadata, and a few other EH related types/functions.
 - No functionality change.

llvm-svn: 65761

 - No functionality change.

llvm-svn: 65760

llvm-svn: 65759

llvm-svn: 65753

llvm-svn: 65751

llvm-svn: 65749

llvm-svn: 65746

"This patch uses the new ObjCImplDecl class to merge  Sema::ImplMethodsVsClassMethods and Sema::ImplCategoryMethodsVsIntfMethods methods.
And now, when clang check a class implementation to find unimplemented methods, it also checks all methods from the class extensions (unnamed categories).

There is also a test case to check this warning.

This patch contains also a minor update for ObjCImplDecl . getNameAsCString and getNameAsString now returns an empty string instead of crashing for unnamed categories."

Patch by Jean-Daniel Dupas!

llvm-svn: 65744

llvm-svn: 65737

Fix invalid VLAs/VMs in Sema::ActOnVariableDeclarator, so that the variable will have the right type by the time the initializer is checked. This ensures that code like

int a[(int)(1.0 / 1.0) = { 1 } will work.

Eli, please review.
 

llvm-svn: 65725

llvm-svn: 65718

llvm-svn: 65717

message to 'super' in a class method declared in
cateogy (darwin specific).

llvm-svn: 65709

notice because it was a negative test with a fix suggested by
Jean-Daniel Dupas.  Convert the test from a negative to a positive
test to catch stuff like this.

llvm-svn: 65708

llvm-svn: 65707

Niklas Larsson!

llvm-svn: 65706

llvm-svn: 65704

/// 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

llvm-svn: 65701

copies with memcpy instead of memmove.  This matches what GCC does and if it
causes a problem with a particular libc we can always fix it with a target
hook.

llvm-svn: 65699

TargetInfo::validateAsmConstraint now takes a reference to the full constraints string. This will make it possible to support multi-character constraints. No functionality change (for now).

llvm-svn: 65696

llvm-svn: 65695

- Move the 'LabelMap' from Sema to Scope. To avoid layering problems, the second element is now a 'StmtTy *', which makes the LabelMap a bit more verbose to deal with.
- Add 'ActiveScope' to Sema. Managed by ActOnStartOfFunctionDef(), ObjCActOnStartOfMethodDef(), ActOnBlockStmtExpr().
- Changed ActOnLabelStmt(), ActOnGotoStmt(), ActOnAddrLabel(), and ActOnFinishFunctionBody() to use the new ActiveScope.
- Added FIXME to workaround in ActOnFinishFunctionBody() (for dealing with C++ nested functions).  

llvm-svn: 65694

llvm-svn: 65688

llvm-svn: 65680

As far as I know, this catches all cases of jumping into the scope of a 
variable with a variably modified type (excluding statement 
expressions) in C.  This is missing some stuff we probably want to check
(other kinds of variably modified declarations, statement expressions, 
indirect gotos/addresses of labels in a scope, ObjC @try/@finally, cleanup 
attribute), the diagnostics aren't very good, and it's not particularly 
efficient, but it's a decent start.

This patch is a slightly modified version of the patch I attached to
PR3259, and it fixes that bug.  I was sort of planning on improving 
it, but I think it's okay as-is, especially since it looks like CodeGen 
doesn't have any use for this sort of data structure.  The only 
significant change I can think of from the version I attached to PR3259 
is that this version skips running the checking code when a function 
doesn't contain any labels.

This patch doesn't cover case statements, which also need similar 
checking; I'm not sure how we should deal with that. Extending the goto 
checking to also check case statements wouldn't be too hard; it's just a 
matter of keeping track of the scope of the closest switch and checking that
the scope of every case is the same as the scope of the switch.  That said, 
it would likely be a performance hit to run this check on every 
function (it's an extra pass over the entire function), so we probably want
some other solution.

llvm-svn: 65678

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

llvm-svn: 65677

llvm-svn: 65671

llvm-svn: 65669

llvm-svn: 65668

natural alignment. Otherwise, the excess hole confuses the
objc2 runtime (this is darwin specific).

llvm-svn: 65666

array types. Semantic checking for the construction of these types has
been factored out of GetTypeForDeclarator and into separate
subroutines (BuildPointerType, BuildReferenceType,
BuildArrayType). We'll be doing the same thing for all other types
(and declarations and expressions).

As part of this, moved the type-instantiation functions into a class
in an anonymous namespace. 

llvm-svn: 65663

llvm-svn: 65659

behavior change.

llvm-svn: 65658