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/ARM/ARMConstantPoolValue.cpp b/lib/Target/ARM/ARMConstantPoolValue.cpp
index a75ed3b..adf03e0 100644
--- a/lib/Target/ARM/ARMConstantPoolValue.cpp
+++ b/lib/Target/ARM/ARMConstantPoolValue.cpp
@@ -34,7 +34,7 @@
                                            const char *Modif,
                                            bool AddCA)
   : MachineConstantPoolValue((const Type*)Type::Int32Ty),
-    GV(NULL), S(s), LabelId(id), Kind(k), PCAdjust(PCAdj),
+    GV(NULL), S(strdup(s)), LabelId(id), Kind(k), PCAdjust(PCAdj),
     Modifier(Modif), AddCurrentAddress(AddCA) {}
 
 ARMConstantPoolValue::ARMConstantPoolValue(GlobalValue *gv,