llvm-svn: 88973

Fix an expensive-checks error.

The Mask and LHSMask may not be of the same size, so don't do the
transformation if they're different.

llvm-svn: 88972

llvm-svn: 88971

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)

llvm-svn: 88969

more cases.  No intended visible change.

llvm-svn: 88968

llvm-svn: 88966

llvm-svn: 88965

llvm-svn: 88964

llvm-svn: 88963

llvm-svn: 88962

llvm-svn: 88961

Repair broken FindCompositePointerType. Correct early termination condition. Get CVR qualifiers from canonical types. Traverse collected qualifiers in reverse order on rebuilding the pointer, so that we don't swap inner and outer qualifiers. That last one fixes PR5509.

llvm-svn: 88960

llvm-svn: 88959

llvm-svn: 88957

llvm-svn: 88956

FixedStackPseudoSourceValueVal, to respect this isa relationship.

llvm-svn: 88954

llvm-svn: 88953

llvm-svn: 88952

llvm-svn: 88951

llvm-svn: 88949

llvm-svn: 88947

llvm-svn: 88946

llvm-svn: 88945

llvm-svn: 88944

llvm-svn: 88943

llvm-svn: 88942

llvm-svn: 88941

llvm-svn: 88940

llvm-svn: 88939

treat it as a unary operator.

llvm-svn: 88938

llvm-svn: 88937

usage of block sizes and offsets.

llvm-svn: 88935

gracefully, on par with gcc, by: Issuing a warning,
doing final sematinc check of its definitions and generating
its meta-data.

llvm-svn: 88934

llvm-svn: 88933

llvm-svn: 88932

llvm-svn: 88929

llvm-svn: 88928

llvm-svn: 88927

llvm-svn: 88921

llvm-svn: 88919