From 49683f3c961379fbc088871a5d6304950f1f1cbc Mon Sep 17 00:00:00 2001
From: Justin Holewinski <jholewinski@nvidia.com>
Date: Fri, 4 May 2012 20:18:50 +0000
Subject: This patch adds a new NVPTX back-end to LLVM which supports code
 generation for NVIDIA PTX 3.0. This back-end will (eventually) replace the
 current PTX back-end, while maintaining compatibility with it.

The new target machines are:

nvptx (old ptx32) => 32-bit PTX
nvptx64 (old ptx64) => 64-bit PTX

The sources are based on the internal NVIDIA NVPTX back-end, and
contain more functionality than the current PTX back-end currently
provides.

NV_CONTRIB

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156196 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/NVPTX/ManagedStringPool.h | 49 ++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 lib/Target/NVPTX/ManagedStringPool.h

(limited to 'lib/Target/NVPTX/ManagedStringPool.h')

diff --git a/lib/Target/NVPTX/ManagedStringPool.h b/lib/Target/NVPTX/ManagedStringPool.h
new file mode 100644
index 0000000..b568488
--- /dev/null
+++ b/lib/Target/NVPTX/ManagedStringPool.h
@@ -0,0 +1,49 @@
+//===-- ManagedStringPool.h - Managed String Pool ---------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// The strings allocated from a managed string pool are owned by the string
+// pool and will be deleted together with the managed string pool.
+//
+//===----------------------------------------------------------------------===//
+
+
+#ifndef LLVM_SUPPORT_MANAGED_STRING_H
+#define LLVM_SUPPORT_MANAGED_STRING_H
+
+#include "llvm/ADT/SmallVector.h"
+#include <string>
+
+namespace llvm {
+
+/// ManagedStringPool - The strings allocated from a managed string pool are
+/// owned by the string pool and will be deleted together with the managed
+/// string pool.
+class ManagedStringPool {
+  SmallVector<std::string *, 8> Pool;
+
+public:
+  ManagedStringPool() {}
+  ~ManagedStringPool() {
+    SmallVector<std::string *, 8>::iterator Current = Pool.begin();
+    while (Current != Pool.end()) {
+      delete *Current;
+      Current++;
+    }
+  }
+
+  std::string *getManagedString(const char *S) {
+    std::string *Str = new std::string(S);
+    Pool.push_back(Str);
+    return Str;
+  }
+};
+
+}
+
+#endif
-- 
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