and PIC codegen.  Patch by Venkatraman Govindaraju!

llvm-svn: 81877

with binary operators.  The result of a binary operator may be
undefined even if its operands are well-defined.

llvm-svn: 81874

function for delete of a class expression and issue
good diagnostic when result is ambiguous.

llvm-svn: 81870

ordering, along with another test case for partial ordering of partial
specializations. 

llvm-svn: 81869

llvm-svn: 81868

llvm-svn: 81867

(C++ [temp.class.order]).

llvm-svn: 81866

llvm-svn: 81865

not folded in the constant folder because the constant folder doesn't
simplify ConstantExpr operands.

llvm-svn: 81864

llvm-svn: 81863

llvm-svn: 81862

instead of cloning and RAUWing it.

 - Make AbstractTypeUser a friend of Value so that it can offer
   its subclasses a way to update a Value's type in place. This
   is better than a universally visible setType method on Value,
   and it's sufficient for the immediate need.

 - Eliminate the constant "convert" functions. This eliminates a
   lot of logic duplication, and fixes a complicated bug where a
   constant can't actually be cloned during the type refinement
   process because some of the types that its folder needs are
   half-destroyed, being in the middle of refinement themselves.

 - Move the getValType functions from being static overloaded
   functions in Constants.cpp to be members of class template
   specializations in ConstantsContext.h. This means that the
   code ends up getting instantiated twice, however it also
   makes it possible to eliminate all "convert" functions, so
   it's not a big net code size increase. And if desired, the
   duplicate instantiations could be eliminated with some
   reorganization.

llvm-svn: 81861

llvm-svn: 81860

llvm-svn: 81859

llvm-svn: 81858

llvm-svn: 81857

llvm-svn: 81856

llvm-svn: 81852

llvm-svn: 81851

llvm-svn: 81850

Another try at early partial coalescing. Identity phi source copies (their sources are defined by phi join def) are coalesced. And the phi join copy is backward copy propagated into the other copies.

Still miscompiling some tests. :-(

llvm-svn: 81849

llvm-svn: 81848

When performing an user defined conversion sequence, perform the initial standard conversion sequence. This lets us remove a workaround in SemaCompleteConstructorCall.

llvm-svn: 81847

While I'm there, change code that does:
  SomeTy == Type::getFooType(Context)
into:
  SomeTy->getTypeID() == FooTyID
to decrease the amount of useless type creation which may involve locking, etc.

llvm-svn: 81846

an unpacked one.

llvm-svn: 81845

llvm-svn: 81844

argpromote to avoid invalidating an iterator.  This fixes PR4977.
All clang tests now pass with expensive checking (on my system 
at least).

llvm-svn: 81843

llvm-svn: 81842

llvm-svn: 81841

llvm-svn: 81840

llvm-svn: 81839

are in the SCC for each execution of a CGSCC pass.

llvm-svn: 81838

llvm-svn: 81837

llvm-svn: 81836

llvm-svn: 81835

llvm-svn: 81834

llvm-svn: 81833

__builtin_offsetof in the static analyzer that __builtin_offsetof is
not guaranteed to return an integer constant.  We will need to shore
this up later, but now at least we have correct support for when this
*is* an integer constant.

llvm-svn: 81830

llvm-svn: 81827

GetProcessId was introduced only in XP. As a bonus, this change makes Program
objects copyable, since Program is now basically a PID.

llvm-svn: 81826