bootstrapping. It's not safe to leave identity subreg_to_reg and insert_subreg
  around.
- Relax register scavenging to allow use of partially "not-live" registers. It's
  common for targets to operate on registers where the top bits are undef. e.g.
  s0 =
  d0 = insert_subreg d0<undef>, s0, 1
  ...
     = d0
  When the insert_subreg is eliminated by the coalescer, the scavenger used to
  complain. The previous fix was to keep to insert_subreg around. But that's
  brittle and it's overly conservative when we want to use the scavenger to 
  allocate registers. It's actually legal and desirable for other instructions
  to use the "undef" part of d0. e.g.
  s0 =
  d0 = insert_subreg d0<undef>, s0, 1
  ...
  s1 =
     = s1
     = d0
  We probably need add a "partial-undef" marker on machine operand so the
  machine verifier would not complain.

llvm-svn: 85091

llvm-svn: 85090

llvm-svn: 85088

llvm-svn: 85087

direct inclusion edge from System to Support.

llvm-svn: 85086

   not (or (icmp, icmp)) -> and(icmp, icmp)

llvm-svn: 85085

llvm-svn: 85084

llvm-svn: 85083

llvm-svn: 85082

or global after a function with conflicting names.  Update some testcases
that were accidentally depending on this behavior.

llvm-svn: 85081

llvm-svn: 85079

llvm-svn: 85078

functions it should just look them up like declarations.

llvm-svn: 85077

llvm-svn: 85076

declared noreturn.

llvm-svn: 85075

llvm-svn: 85074

llvm-svn: 85073

llvm-svn: 85072

process decl attributes instead of dropping them on the floor.
This allows us to diagnose cases like the testcase.  Also don't
diagnose deprecated stuff in ActOnTag: not all uses of tags
may be 'uses', and SemaType does this now.

llvm-svn: 85071

types) out of Sema::getTypeName into ConvertDeclSpecToType.  getTypeName
is sometimes used as a predicate in the parser, so it could cause redundant
diags to be emitted.  This is also needed by two upcoming enhancements.

llvm-svn: 85070

llvm-svn: 85069

Remove the Skip parameter from GetTypeForDeclarator and dependents. Take the opportunity to improve an error message and fix PR4498.

llvm-svn: 85068

llvm-svn: 85067

will have \r\n.
 - Perhaps we should make FileCheck normalize line-endings, even in
   strict-whitespace mode?

llvm-svn: 85066

llvm-svn: 85065

llvm-svn: 85064

GetTypeForDeclarator and into the code that handles long long 
already.

llvm-svn: 85063

block return types only when a TST isn't specified, not every time
through GetTypeForDeclarator.

llvm-svn: 85062

llvm-svn: 85061

of ConvertDeclSpecToType, which I'd like to keep private to SemaType.cpp.
We do this by cons'ing up a trivial Declarator for the type.

John, please review.

llvm-svn: 85060

llvm-svn: 85059

llvm-svn: 85058

IIDecl cannot be null.  There is no need to check for both C++ mode and
presence of CXXRecordDecl.  ObjC interfaces can't have ScopeSpecs.

llvm-svn: 85057

type looking using getTypeName() and every property access was using
NextToken() to do lookahead to see if the identifier is followed by
a '.'.  Rearrange this code to not need lookahead and only do the
type lookup if we have "identifier." in the token stream.  Also
improve a diagnostic a bit.

llvm-svn: 85056

Audit the code for places where it is assumed that every base specifier refers to a RecordType. Add assertions or conditions as appropriate. This fixes another crash in the Apache stdlib vector.

llvm-svn: 85055

llvm-svn: 85054

llvm-svn: 85052

llvm-svn: 85051

llvm-svn: 85050

llvm-svn: 85049