Make BasicAliasAnalysis a normal AliasAnalysis implementation which
does normal initialization and normal chaining. Change the default
AliasAnalysis implementation to NoAlias.

Update StandardCompileOpts.h and friends to explicitly request
BasicAliasAnalysis.

Update tests to explicitly request -basicaa.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116720 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll b/test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll
index a7f9bda..9d0128c 100644
--- a/test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll
+++ b/test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -analyze -lda | FileCheck %s
+; RUN: opt < %s -analyze -basicaa -lda | FileCheck %s
 
 @x = common global [256 x i32] zeroinitializer, align 4
 @y = common global [256 x i32] zeroinitializer, align 4