Change intrinsic result type for void to store it as an empty list

instead of as a single element list with VoidTy.  Now with a fix
for the verifier.

llvm-svn: 99206

1 files changed, 6 insertions, 3 deletions

diff --git a/llvm/utils/TableGen/CodeGenTarget.cpp b/llvm/utils/TableGen/CodeGenTarget.cpp
index 79bc30d8c9a..0d29a2f3557 100644
--- a/llvm/utils/TableGen/CodeGenTarget.cpp
+++ b/llvm/utils/TableGen/CodeGenTarget.cpp
@@ -490,12 +490,15 @@ CodeGenIntrinsic::CodeGenIntrinsic(Record *R) {
       OverloadedVTs.push_back(VT);
       isOverloaded |= true;
     }
+    
     IS.RetVTs.push_back(VT);
     IS.RetTypeDefs.push_back(TyEl);
   }
-
-  if (IS.RetVTs.size() == 0)
-    throw "Intrinsic '"+DefName+"' needs at least a type for the ret value!";
+  
+  if (IS.RetVTs.size() == 1 && IS.RetVTs[0] == MVT::isVoid) {
+    IS.RetVTs.pop_back();
+    IS.RetTypeDefs.pop_back();
+  }
 
   // Parse the list of parameter types.
   TypeList = R->getValueAsListInit("ParamTypes");