CodeGen-Windows: Only emit _fltused if a VarArg function is called with floating point args.
This should be the minimum set of functions that could possibly need it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116978 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index a68b7b0..4be2525 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -5030,16 +5030,16 @@
// See if any floating point values are being passed to this external
// function. This is used to emit an undefined reference to fltused on
// Windows.
- if (!F->hasLocalLinkage() && F->hasName()) {
- MachineModuleInfo &MMI = DAG.getMachineFunction().getMMI();
- for (unsigned i = 0, e = I.getNumArgOperands(); i != e &&
- !MMI.callsExternalFunctionWithFloatingPointArguments(); ++i) {
+ MachineModuleInfo &MMI = DAG.getMachineFunction().getMMI();
+ if (F->isVarArg() &&
+ !MMI.callsExternalVAFunctionWithFloatingPointArguments()) {
+ for (unsigned i = 0, e = I.getNumArgOperands(); i != e; ++i) {
const Type* T = I.getArgOperand(i)->getType();
for (po_iterator<const Type*> i = po_begin(T),
e = po_end(T);
i != e; ++i) {
if (i->isFloatingPointTy()) {
- MMI.setCallsExternalFunctionWithFloatingPointArguments(true);
+ MMI.setCallsExternalVAFunctionWithFloatingPointArguments(true);
break;
}
}