Add support for the Objective-C personality function to the instruction
combining of the landingpad instruction. The ObjC personality function acts
almost identically to the C++ personality function. In particular, it uses
"null" as a "catch-all" value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142256 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/InstCombine/InstructionCombining.cpp b/lib/Transforms/InstCombine/InstructionCombining.cpp
index 92874b9..288fe68 100644
--- a/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -1414,7 +1414,8 @@
enum Personality_Type {
Unknown_Personality,
GNU_Ada_Personality,
- GNU_CXX_Personality
+ GNU_CXX_Personality,
+ GNU_ObjC_Personality
};
/// RecognizePersonality - See if the given exception handling personality
@@ -1426,7 +1427,8 @@
return Unknown_Personality;
return StringSwitch<Personality_Type>(F->getName())
.Case("__gnat_eh_personality", GNU_Ada_Personality)
- .Case("__gxx_personality_v0", GNU_CXX_Personality)
+ .Case("__gxx_personality_v0", GNU_CXX_Personality)
+ .Case("__objc_personality_v0", GNU_ObjC_Personality)
.Default(Unknown_Personality);
}
@@ -1440,6 +1442,7 @@
// match foreign exceptions (or didn't, before gcc-4.7).
return false;
case GNU_CXX_Personality:
+ case GNU_ObjC_Personality:
return TypeInfo->isNullValue();
}
llvm_unreachable("Unknown personality!");