Add an isSwiftError predicate to Value
llvm-svn: 281143
diff --git a/llvm/lib/IR/Value.cpp b/llvm/lib/IR/Value.cpp
index be704a7..a1dfb37 100644
--- a/llvm/lib/IR/Value.cpp
+++ b/llvm/lib/IR/Value.cpp
@@ -664,6 +664,16 @@
Head->setPrev(&UseList);
}
+bool Value::isSwiftError() const {
+ auto *Arg = dyn_cast<Argument>(this);
+ if (Arg)
+ return Arg->hasSwiftErrorAttr();
+ auto *Alloca = dyn_cast<AllocaInst>(this);
+ if (!Alloca)
+ return false;
+ return Alloca->isSwiftError();
+}
+
//===----------------------------------------------------------------------===//
// ValueHandleBase Class
//===----------------------------------------------------------------------===//