Stub out a new lazy value info pass, which will eventually
vend value constraint information to the optimizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86767 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/CMakeLists.txt b/lib/Analysis/CMakeLists.txt
index 3f8356c..0a83c3d 100644
--- a/lib/Analysis/CMakeLists.txt
+++ b/lib/Analysis/CMakeLists.txt
@@ -18,6 +18,7 @@
InstructionSimplify.cpp
Interval.cpp
IntervalPartition.cpp
+ LazyValueInfo.cpp
LibCallAliasAnalysis.cpp
LibCallSemantics.cpp
LiveValues.cpp
diff --git a/lib/Analysis/LazyValueInfo.cpp b/lib/Analysis/LazyValueInfo.cpp
new file mode 100644
index 0000000..cfedc20
--- /dev/null
+++ b/lib/Analysis/LazyValueInfo.cpp
@@ -0,0 +1,31 @@
+//===- LazyValueInfo.cpp - Value constraint analysis ----------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the interface for lazy computation of value constraint
+// information.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Analysis/LazyValueInfo.h"
+using namespace llvm;
+
+char LazyValueInfo::ID = 0;
+static RegisterPass<LazyValueInfo>
+X("lazy-value-info", "Lazy Value Information Analysis", false, true);
+
+namespace llvm {
+ FunctionPass *createLazyValueInfoPass() { return new LazyValueInfo(); }
+}
+
+LazyValueInfo::LazyValueInfo() : FunctionPass(&ID) {
+}
+
+void LazyValueInfo::releaseMemory() {
+
+}