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/BasicAA/empty.ll b/test/Analysis/BasicAA/empty.ll
index 689efec..7b06780 100644
--- a/test/Analysis/BasicAA/empty.ll
+++ b/test/Analysis/BasicAA/empty.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -aa-eval -print-all-alias-modref-info -disable-output \
+; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output \
 ; RUN:   |& grep {NoAlias:	\{\}\\* \[%\]p, \{\}\\* \[%\]q}
 
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"