CodeGenModule::CreateRuntimeVariable.

 - No real functionality change; although we now assert on silly
   things like:
--
int objc_exception_throw;
void f0() { @throw(@"A"); }
--
   instead of accepting it.

llvm-svn: 66292

Start work on subclassing PathDiagnosticPiece to distinguish more between control-flow pieces, events, etc.

llvm-svn: 66291

llvm-svn: 66290

table.
 - No functionality change.

llvm-svn: 66289

an optimization.

llvm-svn: 66288

really use pack() instead.
 - <rdar://problem/6650243> clang warns about '#pragma pack(0)'

llvm-svn: 66287

llvm-svn: 66286

llvm-svn: 66284

llvm-svn: 66283

C and C++. Fixes PR3688.

llvm-svn: 66282

llvm-svn: 66281

llvm-svn: 66280

llvm-svn: 66279

llvm-svn: 66278

in a lone X87 class.
 - PR3735.

llvm-svn: 66277

Manually write a table and some ad-hoc code to provide feature parity with the current code.

llvm-svn: 66276

llvm-svn: 66274

llvm-svn: 66273

Lennart Augustsson!

llvm-svn: 66272

llvm-svn: 66271

 - <rdar://problem/6652110> clang should support weak_import

llvm-svn: 66270

llvm-svn: 66269

llvm-svn: 66268

to find a tiny mouse hole to squeeze through, it struck
me that globals without a name can be considered internal
since they can't be referenced from outside the current
module.  This patch makes GlobalOpt give them internal
linkage.  Also done for aliases even though they always
have names, since in my opinion anonymous aliases should
be allowed for consistency with global variables and
functions.  So if that happens one day, this code is ready!

llvm-svn: 66267

Add some assertions along the way...

llvm-svn: 66265

llvm-svn: 66264

llvm-svn: 66263

llvm-svn: 66262

Stack dump:
0.	Program arguments: clang pr3399.c -S -O3 
1.	<eof> parser at end of file
2.	Code generation
3.	Running pass 'Linear Scan Register Allocator' on function '@foo'
Abort

llvm-svn: 66261

get nice and happy stack traces when we crash in an optimizer or codegen.  For
example, an abort put in UnswitchLoops now looks like this:

Stack dump:
0.	Program arguments: clang pr3399.c -S -O3 
1.	<eof> parser at end of file
2.	per-module optimization passes
3.	Running pass 'CallGraph Pass Manager' on module 'pr3399.c'.
4.	Running pass 'Loop Pass Manager' on function '@foo'
5.	Running pass 'Unswitch loops' on basic block '%for.inc'
Abort

llvm-svn: 66260

 - Also, diagnose weak applied to types.

llvm-svn: 66259

llvm-svn: 66258

llvm-svn: 66257

IntrNoMem.

llvm-svn: 66256

llvm-svn: 66255

llvm-svn: 66254

llvm-svn: 66252

llvm-svn: 66251

llvm-svn: 66250

their main routines.  This makes the tools print their argc/argv
commands if they crash.

llvm-svn: 66248