From: Duncan Sands <baldrick@free.fr>
Date: Thu, 10 Jun 2010 15:06:05 +0000 (+0000)
Subject: Avoid many "variable 'Sub' set but not used [-Wunused-but-set-variable]" warnings
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=39dea6ff768098f33da8441b8323100f68999573;p=oota-llvm.git

Avoid many "variable 'Sub' set but not used [-Wunused-but-set-variable]" warnings
with gcc-4.6.  The warning is wrong, since Sub *is* used (perhaps gcc is confused
because the use of Sub is constant folded away?), but since it is trivial to avoid,
and massively reduces the amount of warning spew, just workaround the wrong warning.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105788 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/SymbolTableListTraits.h b/include/llvm/SymbolTableListTraits.h
index 39953e1a580..91a4eb99ff0 100644
--- a/include/llvm/SymbolTableListTraits.h
+++ b/include/llvm/SymbolTableListTraits.h
@@ -47,9 +47,8 @@ public:
   /// of instructions, it returns the BasicBlock that owns them.
   ItemParentClass *getListOwner() {
     typedef iplist<ValueSubClass> ItemParentClass::*Sublist;
-    Sublist Sub(ItemParentClass::
-                getSublistAccess(static_cast<ValueSubClass*>(0)));
-    size_t Offset(size_t(&((ItemParentClass*)0->*Sub)));
+    size_t Offset(size_t(&((ItemParentClass*)0->*ItemParentClass::
+                           getSublistAccess(static_cast<ValueSubClass*>(0)))));
     iplist<ValueSubClass>* Anchor(static_cast<iplist<ValueSubClass>*>(this));
     return reinterpret_cast<ItemParentClass*>(reinterpret_cast<char*>(Anchor)-
                                               Offset);