X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FMC%2FMCValue.cpp;h=9dfc56ef23d1f42c9f0c5ea4e532ab45161304af;hb=08f77a9f422e96110d8400e4caaf6a51be49a1f3;hp=21d9e2102e2d35dae21fb87ae59f74e971b533af;hpb=4266ae806798f1e8982a53bb9babe1e508adfc68;p=oota-llvm.git

diff --git a/lib/MC/MCValue.cpp b/lib/MC/MCValue.cpp
index 21d9e2102e2..9dfc56ef23d 100644
--- a/lib/MC/MCValue.cpp
+++ b/lib/MC/MCValue.cpp
@@ -10,6 +10,7 @@
 #include "llvm/MC/MCValue.h"
 #include "llvm/MC/MCExpr.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
 
 using namespace llvm;
@@ -41,3 +42,20 @@ void MCValue::dump() const {
   print(dbgs(), nullptr);
 }
 #endif
+
+MCSymbolRefExpr::VariantKind MCValue::getAccessVariant() const {
+  const MCSymbolRefExpr *B = getSymB();
+  if (B) {
+    if (B->getKind() != MCSymbolRefExpr::VK_None)
+      llvm_unreachable("unsupported");
+  }
+
+  const MCSymbolRefExpr *A = getSymA();
+  if (!A)
+    return MCSymbolRefExpr::VK_None;
+
+  MCSymbolRefExpr::VariantKind Kind = A->getKind();
+  if (Kind == MCSymbolRefExpr::VK_WEAKREF)
+    return MCSymbolRefExpr::VK_None;
+  return Kind;
+}