From 67c32a98315f785a9ec9d531c1f571a0196c7463 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sun, 18 Jan 2015 16:17:27 +0000
Subject: Vendor import of llvm RELEASE_360/rc1 tag r226102 (effectively, 3.6.0
 RC1): https://llvm.org/svn/llvm-project/llvm/tags/RELEASE_360/rc1@226102

---
 include/llvm/MC/MCSymbol.h | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

(limited to 'include/llvm/MC/MCSymbol.h')

diff --git a/include/llvm/MC/MCSymbol.h b/include/llvm/MC/MCSymbol.h
index 0b3c3ceb210f2..47a8789d463b7 100644
--- a/include/llvm/MC/MCSymbol.h
+++ b/include/llvm/MC/MCSymbol.h
@@ -53,6 +53,9 @@ namespace llvm {
     /// "Lfoo" or ".foo".
     unsigned IsTemporary : 1;
 
+    /// \brief True if this symbol can be redefined.
+    unsigned IsRedefinable : 1;
+
     /// IsUsed - True if this symbol has been used.
     mutable unsigned IsUsed : 1;
 
@@ -61,7 +64,7 @@ namespace llvm {
     friend class MCContext;
     MCSymbol(StringRef name, bool isTemporary)
       : Name(name), Section(nullptr), Value(nullptr),
-        IsTemporary(isTemporary), IsUsed(false) {}
+        IsTemporary(isTemporary), IsRedefinable(false), IsUsed(false) {}
 
     MCSymbol(const MCSymbol&) LLVM_DELETED_FUNCTION;
     void operator=(const MCSymbol&) LLVM_DELETED_FUNCTION;
@@ -79,6 +82,19 @@ namespace llvm {
     bool isUsed() const { return IsUsed; }
     void setUsed(bool Value) const { IsUsed = Value; }
 
+    /// \brief Check if this symbol is redefinable.
+    bool isRedefinable() const { return IsRedefinable; }
+    /// \brief Mark this symbol as redefinable.
+    void setRedefinable(bool Value) { IsRedefinable = Value; }
+    /// \brief Prepare this symbol to be redefined.
+    void redefineIfPossible() {
+      if (IsRedefinable) {
+        Value = nullptr;
+        Section = nullptr;
+        IsRedefinable = false;
+      }
+    }
+
     /// @}
     /// @name Associated Sections
     /// @{
-- 
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