Fix Intrinsic::getType not working with vararg
VarArg Intrinsic functions are encoded with "void" type as the last
argument. Now Intrinsic::getType can correctly return all the intrinsic
function type.
llvm-svn: 220205
diff --git a/llvm/lib/IR/Function.cpp b/llvm/lib/IR/Function.cpp
index 83f71a8..13747ca 100644
--- a/llvm/lib/IR/Function.cpp
+++ b/llvm/lib/IR/Function.cpp
@@ -739,6 +739,12 @@
while (!TableRef.empty())
ArgTys.push_back(DecodeFixedType(TableRef, Tys, Context));
+ // DecodeFixedType returns Void for IITDescriptor::Void and IITDescriptor::VarArg
+ // If we see void type as the type of the last argument, it is vararg intrinsic
+ if (!ArgTys.empty() && ArgTys.back()->isVoidTy()) {
+ ArgTys.pop_back();
+ return FunctionType::get(ResultTy, ArgTys, true);
+ }
return FunctionType::get(ResultTy, ArgTys, false);
}