llvm-svn: 67601

llvm-svn: 67598

llvm-svn: 67596

llvm-svn: 67595

class C {
  void g(C c);

  virtual void f() = 0;
};

In this case, C is not known to be abstract when doing semantic analysis on g. This is done by recursively traversing the abstract class and checking the types of member functions. 

llvm-svn: 67594

llvm-svn: 67593

llvm-svn: 67592

executables (e.g., clang).
 - This matches the clang-driver behavior.

llvm-svn: 67590

llvm-svn: 67585

llvm-svn: 67584

ccc due to the different way we handle output arguments).

llvm-svn: 67583

llvm-svn: 67581

eliminating the duplication is next on the list.

llvm-svn: 67579

llvm-svn: 67577

always get ParmVarDecls with already-adjusted types. Assert it.

Thanks, Anders!

llvm-svn: 67576

a class template. At present, we can only instantiation normal
methods, but not constructors, destructors, or conversion operators.

As ever, this contains a bit of refactoring in Sema's type-checking. In
particular:

  - Split ActOnFunctionDeclarator into ActOnFunctionDeclarator
    (handling the declarator itself) and CheckFunctionDeclaration
    (checking for the the function declaration), the latter of which
    is also used by template instantiation.
  - We were performing the adjustment of function parameter types in
    three places; collect those into a single new routine.
  - When the type of a parameter is adjusted, allocate an
    OriginalParmVarDecl to keep track of the type as it was written.
  - Eliminate a redundant check for out-of-line declarations of member
    functions; hide more C++-specific checks on function declarations
    behind if(getLangOptions().CPlusPlus).

llvm-svn: 67575

llvm-svn: 67573

A test case to test that -warn-dead-stores does not emit a warning for stores to variables marked with '#pragma unused'.

llvm-svn: 67570

llvm-svn: 67569

On a synthetic command line consisting of almost all defined options,
this drops wall time from .00494 to .00336 and user time from .00258
to .00105.

On the same benchmark, clang-driver is about 15% faster than the
primary gcc driver and almost twice as fast as the gcc driver driver.

llvm-svn: 67564

llvm-svn: 67559

llvm-svn: 67553

llvm-svn: 67552

llvm-svn: 67551

More improvements to abstract type checking. Handle arrays correctly, and make sure to check parameter types before they decay.

llvm-svn: 67550

clang doesn't support, and don't want to warn are unused. Eventually
these should disappear.

Here is a more readable list than is in the diff:

W options: -Wall, -Wcast-align, -Wchar-align, -Wchar-subscripts,
-Werror, -Wextra, -Winline, -Wint-to-pointer-cast, -Wmissing-braces,
-Wmost, -Wnested-externs, -Wno-format-y2k, -Wno-four-char-constants,
-Wno-missing-field-initializers, -Wno-trigraphs, -Wno-unknown-pragmas,
-Wno-unused-parameter, -Wparentheses, -Wpointer-arith,
-Wpointer-to-int-cast, -Wreturn-type, -Wshorten-64-to-32, -Wswitch,
-Wunused-function, -Wunused-label, -Wunused-value, -Wunused-variable,
-Wwrite-strings.

f options: -fasm-blocks, -fmessage-length=.

llvm-svn: 67549

Release-Asserts mode).

Also, avoid searching through option groups (which will never match).

llvm-svn: 67548

llvm-svn: 67543

llvm-svn: 67542

library function, accept this declaration and pretend that we do not
know that this is a library function. autoconf depends on this
(broken) behavior.

llvm-svn: 67541

This matters in assembler mode, where this is silently allowed.
This fixes rdar://6709206.

llvm-svn: 67539

<rdar://problem/6704930> involving SimpleConstraintManager not reasoning well
about symbolic constraint values involving arithmetic operators.

llvm-svn: 67534

prototype. Thanks Eli!

llvm-svn: 67533

llvm-svn: 67532

llvm-svn: 67530

llvm-svn: 67529

 - Patch by Ed Schoeten!

llvm-svn: 67527

values passed-by-reference to unknown functions.

llvm-svn: 67519

llvm-svn: 67517

Evaluate for __extension__ and __builtin_choose_expr.

llvm-svn: 67506