GlobalOpt forgot to handle bitcast when analyzing globals.  Found by inspection.

llvm-svn: 159546
diff --git a/llvm/test/Transforms/GlobalOpt/unnamed-addr.ll b/llvm/test/Transforms/GlobalOpt/unnamed-addr.ll
index babadc6..ee75058 100644
--- a/llvm/test/Transforms/GlobalOpt/unnamed-addr.ll
+++ b/llvm/test/Transforms/GlobalOpt/unnamed-addr.ll
@@ -26,7 +26,9 @@
 entry:
   %arrayidx4 = getelementptr inbounds [4 x i8]* @d, i64 0, i64 %i
   %tmp5 = load i8* %arrayidx4, align 1
-  %cmp = icmp eq i8 %tmp5, 42
+  %array0 = bitcast [4 x i8]* @d to i8*
+  %tmp6 = load i8* %array0, align 1
+  %cmp = icmp eq i8 %tmp5, %tmp6
   ret i1 %cmp
 }