ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle
mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes
as the shuffle mask.  A value of -1 represents UNDEF.

In addition to eliminating the creation of illegal BUILD_VECTORS just to 
represent shuffle masks, we are better about canonicalizing the shuffle mask,
resulting in substantially better code for some classes of shuffles.

A clean up of x86 shuffle code, and some canonicalizing in DAGCombiner is next.

llvm-svn: 69952

 - Otherwise, we will end up with stray .dSYM files which don't get
   lipo'ed or removed.

 - Ideally we would run dsymutil on the result, but we don't have the
   infrastructure for that yet. Note that gcc doesn't handle this case
   either.

 - <rdar://problem/6809621> [driver] clang leaves .dSYM files lying
   around in tmp.

llvm-svn: 69951

updates name lookup so that we see through @compatibility_alias
declarations to their underlying interfaces.

llvm-svn: 69950

llvm-svn: 69949

use ISD::EXTRACT_ELEMENT. SelectionDAG has a special fast-path for
the cast of an EXTRACT_ELEMENT with a BUILD_PAIR operand, for the
common case.

llvm-svn: 69948

llvm-svn: 69947

llvm-svn: 69946

llvm-svn: 69945

llvm-svn: 69944

Several changes here:
1. We change Type::isIncompleteType to realize that forward declared 
   interfaces are incomplete.  This eliminate special case code for this
   from the sizeof path, and starts us rejecting P[4] when P is a pointer
   to an incomplete interface.
2. Explicitly reject P[4] when P points to an interface in non-fragile ABI
   mode.
3. Switch the sizeof(interface) diagnostic back to an error instead of a 
   warning in non-fragile abi mode.

llvm-svn: 69943

llvm-svn: 69942

Eliminate Sema::ObjCImplementations, relying instead on name lookup. What's good for uniformity is good for PCH (or is it the other way around?). 

As part of this, make ObjCImplDecl inherit from NamedDecl (since
ObjCImplementationDecls now need to have names so that they can be
found). This brings ObjCImplDecl very, very close to
ObjCContainerDecl; we may be able to merge them soon.

llvm-svn: 69941

llvm-svn: 69940

their own namespace (IDNS_Protocol) and use the normal name-lookup
routines to find them. Aside from the simplification this provides
(one less DenseMap!), it means that protocols will be lazily
deserialized from PCH files.

Make the code size of the selector table block match the code size of
the type and decl blocks.

llvm-svn: 69939

 - <rdar://problem/6517382> [driver] call ld directly

llvm-svn: 69938

utility function.

llvm-svn: 69937

functionality change.

llvm-svn: 69936

but this change makes the code more general and easier to adapt for
new purposes.

llvm-svn: 69935

llvm-svn: 69934

llvm-svn: 69933

SEL, Class, Protocol, CFConstantString, and
__objcFastEnumerationState. With this, we can now run the Objective-C
methods and properties PCH tests.

llvm-svn: 69932

llvm-svn: 69929

declaration (and avoid issuing bogus error later on).

llvm-svn: 69928

Fix a documentation bug.

llvm-svn: 69923

This was preventing the checker from tracking return objects referenced by 'id'.

llvm-svn: 69922

Make BinOps typed and require a type specifier for !nameconcat.  This
allows binops to be used in typed contexts such as when passing
arguments to classes.

llvm-svn: 69921

llvm-svn: 69919

llvm-svn: 69918

llvm-svn: 69917

object references as tracked objects.

llvm-svn: 69915

llvm-svn: 69914

work as intended no matter what the default setting of that
option is.

llvm-svn: 69911

extend the number of objects tracked by the retain/release checker by assuming
that all class and instance methods should follow Cocoa object "getter" and
"alloc/new" conventions.

llvm-svn: 69908

multiple declarations of the function. Should fix PR3989 and
<rdar://problem/6818429>.

llvm-svn: 69905

Handle corner case where clang-cc is invoked directly to compile preprocessed source file without -main-file-name. In this case, CDDebugInfo is not able identify correct main source file becase SM.isFromMainFile() returns true for locations from header files as well as locations from main source file.
This patch takes conservative approach by not emitting more then one compile unit with isMain bit set.

llvm-svn: 69902

llvm-svn: 69901

target addresses.

llvm-svn: 69900

llvm-svn: 69899

when popping location contexts.

llvm-svn: 69898

by accepting and ignoring it for now.

llvm-svn: 69897