From: Chris Lattner <sabre@nondot.org>
Date: Sun, 15 Nov 2009 19:54:31 +0000 (+0000)
Subject: add attributes for readnone/readonly functions.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6f0c67d4ffbc9c47153cab94985a22699b699729;p=oota-llvm.git

add attributes for readnone/readonly functions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88862 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Support/Compiler.h b/include/llvm/Support/Compiler.h
index 0defe698b6c..da31f986288 100644
--- a/include/llvm/Support/Compiler.h
+++ b/include/llvm/Support/Compiler.h
@@ -29,6 +29,18 @@
 #define ATTRIBUTE_USED
 #endif
 
+#ifdef __GNUC__ // aka 'ATTRIBUTE_CONST' but following LLVM Conventions.
+#define ATTRIBUTE_READNONE __attribute__((__const__))
+#else
+#define ATTRIBUTE_READNONE
+#endif
+
+#ifdef __GNUC__  // aka 'ATTRIBUTE_PURE' but following LLVM Conventions.
+#define ATTRIBUTE_READONLY __attribute__((__pure__))
+#else
+#define ATTRIBUTE_READONLY
+#endif
+
 #if (__GNUC__ >= 4)
 #define BUILTIN_EXPECT(EXPR, VALUE) __builtin_expect((EXPR), (VALUE))
 #else