[PATCH] Initial SEH IR generation implementation

[Reid Kleckner]

Hi rjmccall, rsmith, majnemer,

Most of the complexity here is emitting filter expressions as standalone
LLVM functions. The filter functions are used in catch clauses in place
of type_info globals, and LLVM does the rest of the lowering.

Major aspects that still need work:
- __try body outlining with noinline and optnone.
- Cleanup support for __finally and destructors. LLVM won't be able to
  lower the current IR to anything useful.
- Local variable access in filter expressions.
- Don't use TLS to figure out which filter function fired. This requires
  work in LLVM.

http://reviews.llvm.org/D5607

Files:
  include/clang/AST/Decl.h
  include/clang/AST/Mangle.h
  include/clang/Basic/Builtins.def
  include/clang/Basic/DiagnosticCommonKinds.td
  include/clang/Basic/DiagnosticParseKinds.td
  include/clang/Sema/Scope.h
  lib/AST/ItaniumMangle.cpp
  lib/AST/MicrosoftMangle.cpp
  lib/CodeGen/CGBuiltin.cpp
  lib/CodeGen/CGException.cpp
  lib/CodeGen/CodeGenFunction.cpp
  lib/CodeGen/CodeGenFunction.h
  lib/Parse/ParseStmt.cpp
  lib/Sema/JumpDiagnostics.cpp
  lib/Sema/Scope.cpp
  lib/Sema/SemaChecking.cpp
  test/CodeGen/exceptions-seh-leave.c
  test/CodeGen/exceptions-seh.c
  test/OpenMP/parallel_codegen.cpp
  test/Sema/__try.c
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D5607.14405.patch
Type: text/x-patch
Size: 39564 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20141003/c6deb03f/attachment.bin>