From 0b57cec536236d46e3dba9bd041533462f33dbb7 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Fri, 20 Dec 2019 19:53:05 +0000
Subject: Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.
---
 .../llvm-project/llvm/lib/Support/StringPool.cpp   | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 contrib/llvm-project/llvm/lib/Support/StringPool.cpp

(limited to 'contrib/llvm-project/llvm/lib/Support/StringPool.cpp')

diff --git a/contrib/llvm-project/llvm/lib/Support/StringPool.cpp b/contrib/llvm-project/llvm/lib/Support/StringPool.cpp
new file mode 100644
index 000000000000..82351017b8cc
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/Support/StringPool.cpp
@@ -0,0 +1,34 @@
+//===-- StringPool.cpp - Interned string pool -----------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the StringPool class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/StringPool.h"
+#include "llvm/ADT/StringRef.h"
+
+using namespace llvm;
+
+StringPool::StringPool() {}
+
+StringPool::~StringPool() {
+  assert(InternTable.empty() && "PooledStringPtr leaked!");
+}
+
+PooledStringPtr StringPool::intern(StringRef Key) {
+  table_t::iterator I = InternTable.find(Key);
+  if (I != InternTable.end())
+    return PooledStringPtr(&*I);
+
+  entry_t *S = entry_t::Create(Key);
+  S->getValue().Pool = this;
+  InternTable.insert(S);
+
+  return PooledStringPtr(S);
+}
-- 
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