Also handle the new Rust pers fn to isCatchAll()

llvm-svn: 263585
diff --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
index 0ac16fe..8f7fd2e 100644
--- a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -2370,8 +2370,9 @@
 static bool isCatchAll(EHPersonality Personality, Constant *TypeInfo) {
   switch (Personality) {
   case EHPersonality::GNU_C:
-    // The GCC C EH personality only exists to support cleanups, so it's not
-    // clear what the semantics of catch clauses are.
+  case EHPersonality::Rust:
+    // The GCC C EH and Rust personality only exists to support cleanups, so
+    // it's not clear what the semantics of catch clauses are.
     return false;
   case EHPersonality::Unknown:
     return false;