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/Transforms/MemCpyOpt/2008-02-24-MultipleUseofSRet.ll b/test/Transforms/MemCpyOpt/2008-02-24-MultipleUseofSRet.ll
index 30c2713..9f1e280 100644
--- a/test/Transforms/MemCpyOpt/2008-02-24-MultipleUseofSRet.ll
+++ b/test/Transforms/MemCpyOpt/2008-02-24-MultipleUseofSRet.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -memcpyopt -dse -S | grep {call.*initialize} | not grep memtmp
+; RUN: opt < %s -basicaa -memcpyopt -dse -S | grep {call.*initialize} | not grep memtmp
 ; PR2077
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
diff --git a/test/Transforms/MemCpyOpt/2008-03-13-ReturnSlotBitcast.ll b/test/Transforms/MemCpyOpt/2008-03-13-ReturnSlotBitcast.ll
index 38a7271..418761e 100644
--- a/test/Transforms/MemCpyOpt/2008-03-13-ReturnSlotBitcast.ll
+++ b/test/Transforms/MemCpyOpt/2008-03-13-ReturnSlotBitcast.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -memcpyopt -S | not grep {call.*memcpy.}
+; RUN: opt < %s -basicaa -memcpyopt -S | not grep {call.*memcpy.}
 target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64"
 	%a = type { i32 }
 	%b = type { float }
diff --git a/test/Transforms/MemCpyOpt/loadstore-sret.ll b/test/Transforms/MemCpyOpt/loadstore-sret.ll
index ebc11fc..67e7137 100644
--- a/test/Transforms/MemCpyOpt/loadstore-sret.ll
+++ b/test/Transforms/MemCpyOpt/loadstore-sret.ll
@@ -1,4 +1,4 @@
-; RUN: opt -S < %s -memcpyopt | FileCheck %s
+; RUN: opt -S < %s -basicaa -memcpyopt | FileCheck %s
 ; <rdar://problem/8536696>
 
 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"
diff --git a/test/Transforms/MemCpyOpt/memcpy.ll b/test/Transforms/MemCpyOpt/memcpy.ll
index 724acfa..e4cd0ef 100644
--- a/test/Transforms/MemCpyOpt/memcpy.ll
+++ b/test/Transforms/MemCpyOpt/memcpy.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -memcpyopt -dse -S | grep {call.*memcpy} | count 1
+; RUN: opt < %s -basicaa -memcpyopt -dse -S | grep {call.*memcpy} | count 1
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
 target triple = "i686-apple-darwin9"
diff --git a/test/Transforms/MemCpyOpt/memmove.ll b/test/Transforms/MemCpyOpt/memmove.ll
index 73bbf0b..8babb04 100644
--- a/test/Transforms/MemCpyOpt/memmove.ll
+++ b/test/Transforms/MemCpyOpt/memmove.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -memcpyopt -S | FileCheck %s
+; RUN: opt < %s -basicaa -memcpyopt -S | FileCheck %s
 ; These memmoves should get optimized to memcpys.
 
 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"
diff --git a/test/Transforms/MemCpyOpt/sret.ll b/test/Transforms/MemCpyOpt/sret.ll
index 5002875..d35ab91 100644
--- a/test/Transforms/MemCpyOpt/sret.ll
+++ b/test/Transforms/MemCpyOpt/sret.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -memcpyopt -S | not grep {call.*memcpy}
+; RUN: opt < %s -basicaa -memcpyopt -S | not grep {call.*memcpy}
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
 target triple = "i686-apple-darwin9"