This is a big patch, but the functionality change is small and the rest of the patch consists of deltas due to API changes.

This patch overhauls the "memory region" abstraction that was prototyped (but never really used) as part of the Store.h.  This patch adds MemRegion.h and MemRegion.cpp, which defines the class MemRegion and its subclasses.  This classes serve to define an abstract representation of memory, with regions being layered on other regions to to capture the relationships between fields and variables, variables and the address space they are allocated in, and so on.  

The main motivation of this patch is that key parts of the analyzer assumed that all value bindings were to VarDecls.  In the future this won't be the case, and this patch removes lval::DeclVal and replaces it with lval::MemRegionVal.  Now all pieces of the analyzer must reason about abstract memory blocks instead of just variables.

There should be no functionality change from this patch, but it opens the door for significant improvements to the analyzer such as field-sensitivity and object-sensitivity, both which were on hold until the memory abstraction got generalized.

The memory region abstraction also allows type-information to literally be affixed to a memory region.  This will allow the some now redundant logic to be removed from the retain/release checker.

llvm-svn: 57042

llvm-svn: 57041

llvm-svn: 57038

that includes any edits in the range.

llvm-svn: 57037

llvm-svn: 57036

llvm-svn: 57028

llvm-svn: 57019

llvm-svn: 57015

llvm-svn: 57004

- Many rewriter modifications.

llvm-svn: 57003

llvm-svn: 57001

llvm-svn: 56993

llvm-svn: 56992

llvm-svn: 56991

llvm-svn: 56987

This is a temporary solution to help with the block rewriter (though it certainly has general utility).
Once DeclGroup's are implemented, this SourceLocation should be stored with it (since it applies to all the decls).

llvm-svn: 56985

llvm-svn: 56984

 - Enabled for builtins which are always constant expressions
   (__builtin_huge_val*, __builtin_inf*, __builtin_constant_p,
   __builtin_classify_type, __builtin___CFStringMakeConstantString).

Added Builtin::Context::isConstantExpr.
 - Currently overly simply interface which only works for builtins
   whose constantexprness does not depend on their arguments.

CallExpr::isBuiltinConstantExpr now takes an ASTContext argument.

llvm-svn: 56983

versions of sprintf and friends.
 - Added FIXME that this mechanism should be generalized.

llvm-svn: 56962

handling blocks.
 - This has false positives, but at least prevents miscompiles.

llvm-svn: 56958

llvm-svn: 56956

This commit also includes some name changes in the blocks rewriter (no functionality change).

llvm-svn: 56955

llvm-svn: 56954

llvm-svn: 56952

OS version part to that of the host on darwin.

llvm-svn: 56943

llvm-svn: 56941

Expand checking to include functions, not just methods.

llvm-svn: 56938

llvm-svn: 56936

llvm-svn: 56916

llvm-svn: 56915

llvm-svn: 56912

llvm-svn: 56909

 - So far this works fairly well for me for building applications
   using clang as a gcc substitute. If you are using ccc for a
   different purpose and this is a problem, speak up! Note you can
   also use CCC_NATIVE=0 to disable.

 - Also, turn CCC_ECHO off as default.

 - Also, pass through -Wl, to linker.

llvm-svn: 56904

llvm-svn: 56902

collisions.
 - Provide CodeGenModule::CreateRuntimeFunction which guarantees that
   the function it creates will have the provided name in the final
   module. This allows the runtime to have its functions protected
   from declarations of the same name in the source code.

 - One could argue that this is a reason to abuse the llvm::Module
   namespace for dealing with function redeclarations. However, that
   approach seems conceptually flawed to me. This one also happens to
   be somewhat more efficient.

No functionality change.

llvm-svn: 56899

Use this updated interface when invalidating arguments passed by reference; the type of symbol is of the object passed by reference, not the reference itself.

llvm-svn: 56894

llvm-svn: 56892

llvm-svn: 56891

-mmacosx-version-min.

One might anticipate that at some point I will just break down and go
through the man page. That seems a little too obvious.

llvm-svn: 56890

 - More straightforward, e.g. -E should always imply action =
   'preprocess' (I think).
 - Pass another option through for OS X.

llvm-svn: 56884