SjLj based exception handling unwinding support. This patch is nasty, brutish
and short. Well, it's kinda short. Definitely nasty and brutish.

The front-end generates the register/unregister calls into the SjLj runtime,
call-site indices and landing pad dispatch. The back end fills in the LSDA
with the call-site information provided by the front end. Catch blocks are
not yet implemented.

Built on Darwin and verified no llvm-core "make check" regressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78625 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCTargetAsmInfo.cpp b/lib/Target/PowerPC/PPCTargetAsmInfo.cpp
index 2612017..52e2986 100644
--- a/lib/Target/PowerPC/PPCTargetAsmInfo.cpp
+++ b/lib/Target/PowerPC/PPCTargetAsmInfo.cpp
@@ -24,8 +24,8 @@
   PCSymbol = ".";
   CommentString = ";";
   UsedDirective = "\t.no_dead_strip\t";
-  SupportsExceptionHandling = true;
-  
+  ExceptionsType = ExceptionHandling::Dwarf;
+
   GlobalEHDirective = "\t.globl\t";
   SupportsWeakOmittedEHFrame = false;
 }
@@ -49,7 +49,7 @@
 
   // Exceptions handling
   if (!TM.getSubtargetImpl()->isPPC64())
-    SupportsExceptionHandling = true;
+    ExceptionsType = ExceptionHandling::Dwarf;
   AbsoluteEHSectionOffsets = false;
 }