Tail duplication should zap a copy it inserted for SSA update if the copy is the only use of its source.

llvm-svn: 91390

now, don't construct CFGs that contain C++ try/catch statements, and
have GRExprEngine abort a path if it encounters a C++ construct it
doesn't understand (which is mostly everything at this point).

llvm-svn: 91389

llvm-svn: 91386

llvm-svn: 91384

-fcatch-undefined-behavior if we aren't optimizing.  WIP.

llvm-svn: 91382

llvm-svn: 91381

llvm-svn: 91380

llvm-svn: 91379

llvm-svn: 91378

llvm-svn: 91377

$ svn merge -c -91161 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91161 into '.':
U    lib/CodeGen/BranchFolding.cpp
U    lib/CodeGen/MachineBasicBlock.cpp
$ svn merge -c -91113 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91113 into '.':
G    lib/CodeGen/MachineBasicBlock.cpp
$ svn merge -c -91101 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91101 into '.':
U    include/llvm/CodeGen/MachineBasicBlock.h
G    lib/CodeGen/MachineBasicBlock.cpp
$ svn merge -c -91092 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91092 into '.':
G    include/llvm/CodeGen/MachineBasicBlock.h
G    lib/CodeGen/MachineBasicBlock.cpp

llvm-svn: 91376

instead of abort to improve codesize and codegen.

llvm-svn: 91374

llvm-svn: 91373

llvm-svn: 91371

resources (e.g., /usr/lib/clang/1.1) to be passed on the command line instead of
computed.

llvm-svn: 91370

WIP, yet again.

llvm-svn: 91368

llvm-svn: 91367

llvm-svn: 91362

those enum values is less common.

llvm-svn: 91361

depends on.

llvm-svn: 91360

I apologize for friend declarations.

llvm-svn: 91359

llvm-svn: 91356

Bill for spotting this!

llvm-svn: 91355

llvm-svn: 91352

llvm-svn: 91349

Fix: <rdar://problem/7468209> SymbolManager::isLive() should not crash on captured block variables that are passed by reference

llvm-svn: 91348

llvm-svn: 91347

on 64-bit targets.  Pass Preprocessor into create/destroy methods of MacroArgs
even though it isn't used yet.

llvm-svn: 91345

llvm-svn: 91343

llvm-svn: 91341

between BR_JTr and STREXD.

llvm-svn: 91339

but we need it to actually be 4-bytes in the FDE.

llvm-svn: 91337

an Objective-C rethrow nested inside another try/catch block. (fixes radar 7466728).

llvm-svn: 91335

llvm-svn: 91333

llvm-svn: 91329

llvm-svn: 91327

llvm-svn: 91326

llvm-svn: 91325

llvm-svn: 91324

llvm-svn: 91323