post-decrement, including support for generating all of the built-in
operator candidates for these operators. 

C++ and C have different rules for the arguments to the builtin unary
'+' and '-'. Implemented both variants in Sema::ActOnUnaryOp.

In C++, pre-increment and pre-decrement return lvalues. Update
Expr::isLvalue accordingly.

llvm-svn: 59638

With this snippet:
  void f(a::b);

An assert is hit:
Assertion failed: CachedTokens[CachedLexPos-1].getLocation() == Tok.getAnnotationEndLoc() && "The annotation should be until the most recent cached token", file ..\..\lib\Lex\PPCaching.cpp, line 98

Introduce Preprocessor::RevertCachedTokens that reverts a specific number of tokens when backtracking is enabled.

llvm-svn: 59636

Remove Preprocessor::CacheTokens boolean data member. The same functionality can be provided by using Preprocessor::isBacktrackEnabled().

llvm-svn: 59631

llvm-svn: 59622

llvm-svn: 59619

llvm-svn: 59618

PragmaPackStack. Thanks Chris!

llvm-svn: 59616

value).
 - Use extra argument to EmitStoreThroughLValue to provide place to
   write update bit-field value if caller requires it.
 - This fixes several FIXMEs.

llvm-svn: 59615

llvm-svn: 59613

llvm-svn: 59611

llvm-svn: 59610

llvm-svn: 59609

llvm-svn: 59608

llvm-svn: 59607

llvm-svn: 59606

the code and speeds it up.

llvm-svn: 59604

llvm-svn: 59603

llvm-svn: 59602

first.  This should allow removal of a bunch of II->getName() calls.

llvm-svn: 59601

llvm-svn: 59600

llvm-svn: 59599

llvm-svn: 59598

llvm-svn: 59597

This also makes it illegal to have bare '%'s in diagnostics.  If you
want a % in a diagnostic, use %%.

llvm-svn: 59596

llvm-svn: 59594

const char*'s are now not converted to std::strings when the diagnostic
is formed, we just hold onto their pointer and format as needed.

This commit makes DiagnosticClient::FormatDiagnostic even more of a 
mess, I'll fix it in the next commit.

llvm-svn: 59593

llvm-svn: 59589

__builtin_prefetch code to only emit one diagnostic per builtin_prefetch.
While this has nothing to do with the rest of the patch, the code seemed
like overkill when I was updating it.

llvm-svn: 59588

not "int".

Fix a typo in the promotion of enumeration types that was causing some
integral promotions to look like integral conversions (leading to
extra ambiguities in overload resolution).

Check for "acceptable" overloaded operators based on the types of the
arguments. This is a somewhat odd check that is specified by the
standard, but I can't see why it actually matters: the overload
candidates it suppresses don't seem like they would ever be picked as
the best candidates.

llvm-svn: 59583

llvm-svn: 59579

Also, took care of Daniel's commments.

llvm-svn: 59575

- Add variants of IsNonPragmaNonMacroLexer to accept an IncludeMacroStack entry
  (simplifies some uses).
- Use IsNonPragmaNonMacroLexer in Preprocessor::LookupFile.

Performance testing of -Eonly on Cocoa.h shows no performance regression because
of this patch.

llvm-svn: 59574

llvm-svn: 59573

llvm-svn: 59571

to support operators defined as member functions, e.g.,

  struct X { 
    bool operator==(X&);
  };

Overloading with non-member operators is supported, and the special
rules for the implicit object parameter (e.g., the ability for a
non-const *this to bind to an rvalue) are implemented.

This change also refactors and generalizes the code for adding
overload candidates for overloaded operator calls (C++ [over.match.expr]),
both to match the rules more exactly (name lookup of non-member
operators actually ignores member operators) and to make this routine
more reusable for the other overloaded operators.

Testing for the initialization of the implicit object parameter is
very light. More tests will come when we get support for calling
member functions directly (e.g., o.m(a1, a2)).

llvm-svn: 59564

llvm-svn: 59561

__weak objects.

llvm-svn: 59560

llvm-svn: 59556

llvm-svn: 59554

llvm-svn: 59553