Implement and use new method Function::hasAddressTaken().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73164 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/DeadArgumentElimination.cpp b/lib/Transforms/IPO/DeadArgumentElimination.cpp
index 666db7e..e480dad 100644
--- a/lib/Transforms/IPO/DeadArgumentElimination.cpp
+++ b/lib/Transforms/IPO/DeadArgumentElimination.cpp
@@ -175,15 +175,8 @@
if (Fn.isDeclaration() || !Fn.hasLocalLinkage()) return false;
// Ensure that the function is only directly called.
- for (Value::use_iterator I = Fn.use_begin(), E = Fn.use_end(); I != E; ++I) {
- // If this use is anything other than a call site, give up.
- CallSite CS = CallSite::get(*I);
- Instruction *TheCall = CS.getInstruction();
- if (!TheCall) return false; // Not a direct call site?
-
- // The addr of this function is passed to the call.
- if (!CS.isCallee(I)) return false;
- }
+ if (Fn.hasAddressTaken())
+ return false;
// Okay, we know we can transform this function if safe. Scan its body
// looking for calls to llvm.vastart.