1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
index 10d90d1..f7e9880 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
@@ -640,6 +640,9 @@ bool WebAssemblyFastISel::fastLowerArguments() {
   if (F->isVarArg())
     return false;
 
+  if (FuncInfo.Fn->getCallingConv() == CallingConv::Swift)
+    return false;
+
   unsigned I = 0;
   for (auto const &Arg : F->args()) {
     const AttributeList &Attrs = F->getAttributes();
@@ -754,6 +757,9 @@ bool WebAssemblyFastISel::selectCall(const Instruction *I) {
   if (Func && Func->isIntrinsic())
     return false;
 
+  if (Call->getCallingConv() == CallingConv::Swift)
+    return false;
+
   bool IsDirect = Func != nullptr;
   if (!IsDirect && isa<ConstantExpr>(Call->getCalledValue()))
     return false;