It is generally not sufficient to check if the starting offset is in range
of the maximum offset that can be efficiently used for the target.

llvm-svn: 119565

This makes it more clear that the symbol is an internal, compiler-generated
name and gives a little more description about its contents.

llvm-svn: 119564

It was mistakenly looking at the pointer type when checking for the size of
global variables.  This is a partial fix for Radar 8673120.

llvm-svn: 119563

llvm-svn: 114943

llvm-svn: 113119

llvm-svn: 110460

llvm-svn: 110410

ID member as the sole unique type identifier.  Clean up APIs related to this change.

llvm-svn: 110396

This assumption is not satisfied due to global mergeing.
Workaround the issue by temporary disablinge mergeing of const globals.
Also, ignore LLVM "special" globals. This fixes PR7716

llvm-svn: 109423

llvm-svn: 109373

llvm-svn: 109359

It is not ready for public yet.

llvm-svn: 100673

llvm-svn: 100642

llvm-svn: 100641