It is enough for the CallInst to have no uses to be made a tail call with a ret
void; it doesn't need to have a void type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128212 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/CodeGenPrepare.cpp b/lib/Transforms/Scalar/CodeGenPrepare.cpp
index fc7e136..337a4d3 100644
--- a/lib/Transforms/Scalar/CodeGenPrepare.cpp
+++ b/lib/Transforms/Scalar/CodeGenPrepare.cpp
@@ -644,7 +644,7 @@
if (++RI == RE)
continue;
CallInst *CI = dyn_cast<CallInst>(&*RI);
- if (CI && CI->getType()->isVoidTy() && TLI->mayBeEmittedAsTailCall(CI))
+ if (CI && CI->use_empty() && TLI->mayBeEmittedAsTailCall(CI))
TailCalls.push_back(CI);
}
}