1 files changed, 36 insertions, 0 deletions
diff --git a/llvm/lib/MC/MCFixup.cpp b/llvm/lib/MC/MCFixup.cpp
new file mode 100644
index 00000000000..d0a4fed28f9
--- /dev/null
+++ b/llvm/lib/MC/MCFixup.cpp
@@ -0,0 +1,36 @@
+//===- MCFixup.cpp - Assembly Fixup Implementation ------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCFixup.h"
+using namespace llvm;
+
+static MCSymbolRefExpr::VariantKind getAccessVariant(const MCExpr *Expr) {
+  switch (Expr->getKind()) {
+  case MCExpr::Unary:
+  case MCExpr::Target:
+    llvm_unreachable("unsupported");
+
+  case MCExpr::Constant:
+    return MCSymbolRefExpr::VK_None;
+
+  case MCExpr::SymbolRef: {
+    const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(Expr);
+    return SRE->getKind();
+  }
+  case MCExpr::Binary: {
+    const MCBinaryExpr *ABE = cast<MCBinaryExpr>(Expr);
+    assert(getAccessVariant(ABE->getRHS()) == MCSymbolRefExpr::VK_None);
+    return getAccessVariant(ABE->getLHS());
+  }
+  }
+}
+
+MCSymbolRefExpr::VariantKind MCFixup::getAccessVariant() const {
+  return ::getAccessVariant(getValue());
+}