1 files changed, 43 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/RuntimeLibcallInfo.cpp b/llvm/lib/Analysis/RuntimeLibcallInfo.cpp
new file mode 100644
index 0000000..6fb4119
--- /dev/null
+++ b/llvm/lib/Analysis/RuntimeLibcallInfo.cpp
@@ -0,0 +1,43 @@
+//===- RuntimeLibcallInfo.cpp ---------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Analysis/RuntimeLibcallInfo.h"
+#include "llvm/InitializePasses.h"
+
+using namespace llvm;
+
+AnalysisKey RuntimeLibraryAnalysis::Key;
+
+RTLIB::RuntimeLibcallsInfo
+RuntimeLibraryAnalysis::run(const Module &M, ModuleAnalysisManager &) {
+  return RTLIB::RuntimeLibcallsInfo(M);
+}
+
+INITIALIZE_PASS(RuntimeLibraryInfoWrapper, "runtime-library-info",
+                "Runtime Library Function Analysis", false, true)
+
+RuntimeLibraryInfoWrapper::RuntimeLibraryInfoWrapper()
+    : ImmutablePass(ID), RTLA(RTLIB::RuntimeLibcallsInfo(Triple())) {}
+
+char RuntimeLibraryInfoWrapper::ID = 0;
+
+ModulePass *llvm::createRuntimeLibraryInfoWrapperPass() {
+  return new RuntimeLibraryInfoWrapper();
+}
+
+void RuntimeLibraryInfoWrapper::getAnalysisUsage(AnalysisUsage &AU) const {
+  AU.setPreservesAll();
+}
+
+// Assume this is stable unless explicitly invalidated.
+bool RTLIB::RuntimeLibcallsInfo::invalidate(
+    Module &M, const PreservedAnalyses &PA,
+    ModuleAnalysisManager::Invalidator &) {
+  auto PAC = PA.getChecker<RuntimeLibraryAnalysis>();
+  return !PAC.preservedWhenStateless();
+}