Import LLVM, at r72732.

1 files changed, 47 insertions, 0 deletions

diff --git a/include/llvm/System/Host.h b/include/llvm/System/Host.h
new file mode 100644
index 0000000..3c6aa9d
--- /dev/null
+++ b/include/llvm/System/Host.h
@@ -0,0 +1,47 @@
+//===- llvm/System/Host.h - Host machine characteristics --------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Methods for querying the nature of the host machine.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SYSTEM_HOST_H
+#define LLVM_SYSTEM_HOST_H
+
+#include <string>
+
+namespace llvm {
+namespace sys {
+
+  inline bool isLittleEndianHost() {
+    union {
+      int i;
+      char c;
+    };
+    i = 1;
+    return c;
+  }
+
+  inline bool isBigEndianHost() {
+    return !isLittleEndianHost();
+  }
+
+  /// getHostTriple() - Return the target triple of the running
+  /// system.
+  ///
+  /// The target triple is a string in the format of:
+  ///   CPU_TYPE-VENDOR-OPERATING_SYSTEM
+  /// or
+  ///   CPU_TYPE-VENDOR-KERNEL-OPERATING_SYSTEM
+  std::string getHostTriple();
+
+}
+}
+
+#endif