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.

llvm-svn: 128212

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp b/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp
index fc7e13675cb..337a4d3c468 100644
--- a/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp
+++ b/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp
@@ -644,7 +644,7 @@ bool CodeGenPrepare::DupRetToEnableTailCallOpts(ReturnInst *RI) {
       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);
     }
   }