From 86704cc3557b8933c2dd49fb130b9c5ace27e3f7 Mon Sep 17 00:00:00 2001
From: Hans Wennborg <hans@hanshq.net>
Date: Tue, 9 Dec 2014 20:39:15 +0000
Subject: [PATCH] Try fixing MSVC build after r223802

LLVM_EXPLICIT is only supported by recent version of MSVC, and it seems
the not-so-recent versions get confused about the operator bool() when
tryint to resolve operator== calls.

This removed the operator bool()'s since they don't seem to be used
anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223824 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/IR/Metadata.h      | 1 -
 include/llvm/IR/TrackingMDRef.h | 2 --
 lib/IR/DebugInfo.cpp            | 2 +-
 3 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/include/llvm/IR/Metadata.h b/include/llvm/IR/Metadata.h
index 56699b0fc4d..81107e69806 100644
--- a/include/llvm/IR/Metadata.h
+++ b/include/llvm/IR/Metadata.h
@@ -525,7 +525,6 @@ public:
   MDOperand() : MD(nullptr) {}
   ~MDOperand() { untrack(); }
 
-  LLVM_EXPLICIT operator bool() const { return get(); }
   Metadata *get() const { return MD; }
   operator Metadata *() const { return get(); }
   Metadata *operator->() const { return get(); }
diff --git a/include/llvm/IR/TrackingMDRef.h b/include/llvm/IR/TrackingMDRef.h
index 6e1b1bd1510..ea621c1d95e 100644
--- a/include/llvm/IR/TrackingMDRef.h
+++ b/include/llvm/IR/TrackingMDRef.h
@@ -55,7 +55,6 @@ public:
   }
   ~TrackingMDRef() { untrack(); }
 
-  LLVM_EXPLICIT operator bool() const { return get(); }
   Metadata *get() const { return MD; }
   operator Metadata *() const { return get(); }
   Metadata *operator->() const { return get(); }
@@ -121,7 +120,6 @@ public:
     return *this;
   }
 
-  LLVM_EXPLICIT operator bool() const { return get(); }
   T *get() const { return (T *)Ref.get(); }
   operator T *() const { return get(); }
   T *operator->() const { return get(); }
diff --git a/lib/IR/DebugInfo.cpp b/lib/IR/DebugInfo.cpp
index c31cd6dd915..c99d885a668 100644
--- a/lib/IR/DebugInfo.cpp
+++ b/lib/IR/DebugInfo.cpp
@@ -662,7 +662,7 @@ static void VerifySubsetOf(const MDNode *LHS, const MDNode *RHS) {
     const MDNode *E = cast<MDNode>(LHS->getOperand(i));
     bool found = false;
     for (unsigned j = 0; !found && j != RHS->getNumOperands(); ++j)
-      found = E == RHS->getOperand(j);
+      found = (E == cast<MDNode>(RHS->getOperand(j)));
     assert(found && "Losing a member during member list replacement");
   }
 }
-- 
2.34.1