Use __attribute__((__used__)) if GCC >= 3.1 (seems to be the oldest GCC

supporting this attribute).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82177 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Support/Compiler.h b/include/llvm/Support/Compiler.h
index 853324611bbe757b40356367dfa66531793fe60c..342a97d761ee624c655ab09378c0f163c19e04e2 100644 (file)
--- a/include/llvm/Support/Compiler.h
+++ b/include/llvm/Support/Compiler.h
@@ -23,7 +23,7 @@
 #define VISIBILITY_HIDDEN
 #endif
 
-#if (__GNUC__ >= 4)
+#if (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
 #define ATTRIBUTE_USED __attribute__((__used__))
 #else
 #define ATTRIBUTE_USED