From: Nate Begeman <natebegeman@mac.com>
Date: Wed, 15 Jun 2005 18:28:44 +0000 (+0000)
Subject: Add some operators the PowerPC backend needs to efficiently and correctly
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=cb647519d34184fe41aa7e072076ae70634bc3d7;p=oota-llvm.git

Add some operators the PowerPC backend needs to efficiently and correctly
generate conditional branches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22214 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/ADT/ilist b/include/llvm/ADT/ilist
index 877e1445f48..1d01b63fe73 100644
--- a/include/llvm/ADT/ilist
+++ b/include/llvm/ADT/ilist
@@ -169,6 +169,26 @@ void operator+(int, ilist_iterator<T>);
 template<typename T>
 void operator+(ilist_iterator<T>,int);
 
+// operator!=/operator== - Allow mixed comparisons without dereferencing
+// the iterator, which could very likely be pointing to end().
+template<typename T>
+bool operator!=(const T* LHS, const ilist_iterator<const T> &RHS) {
+  return LHS != RHS.getNodePtrUnchecked();
+}
+template<typename T>
+bool operator==(const T* LHS, const ilist_iterator<const T> &RHS) {
+  return LHS == RHS.getNodePtrUnchecked();
+}
+template<typename T>
+bool operator!=(T* LHS, const ilist_iterator<T> &RHS) {
+  return LHS != RHS.getNodePtrUnchecked();
+}
+template<typename T>
+bool operator==(T* LHS, const ilist_iterator<T> &RHS) {
+  return LHS == RHS.getNodePtrUnchecked();
+}
+
+
 // Allow ilist_iterators to convert into pointers to a node automatically when
 // used by the dyn_cast, cast, isa mechanisms...