Allow asms to return multiple results by value.
llvm-svn: 50328
diff --git a/llvm/lib/VMCore/InlineAsm.cpp b/llvm/lib/VMCore/InlineAsm.cpp
index e49bb6d..d563e95 100644
--- a/llvm/lib/VMCore/InlineAsm.cpp
+++ b/llvm/lib/VMCore/InlineAsm.cpp
@@ -202,11 +202,20 @@
break;
}
}
-
- if (NumOutputs > 1) return false; // Only one result allowed so far.
- if ((Ty->getReturnType() != Type::VoidTy) != NumOutputs)
- return false; // NumOutputs = 1 iff has a result type.
+ switch (NumOutputs) {
+ case 0:
+ if (Ty->getReturnType() != Type::VoidTy) return false;
+ break;
+ case 1:
+ if (isa<StructType>(Ty->getReturnType())) return false;
+ break;
+ default:
+ const StructType *STy = dyn_cast<StructType>(Ty->getReturnType());
+ if (STy == 0 || STy->getNumElements() != NumOutputs)
+ return false;
+ break;
+ }
if (Ty->getNumParams() != NumInputs) return false;
return true;