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/GlobalsModRef/modreftest.ll b/test/Analysis/GlobalsModRef/modreftest.ll
index 257c0ee..3a02a94 100644
--- a/test/Analysis/GlobalsModRef/modreftest.ll
+++ b/test/Analysis/GlobalsModRef/modreftest.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -globalsmodref-aa -gvn -S | not grep load
+; RUN: opt < %s -basicaa -globalsmodref-aa -gvn -S | not grep load
 @X = internal global i32 4		; <i32*> [#uses=2]
 
 define i32 @test(i32* %P) {