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authorTavian Barnes <tavianator@gmail.com>2011-11-16 17:01:02 -0500
committerTavian Barnes <tavianator@gmail.com>2011-11-16 17:01:53 -0500
commit78dca8153f802f271b4f2aeca33d967a075e485e (patch)
treecaf18232cb7d5256efaa853373644e810e1af014 /libdimension/compiler-internal.h
parentb8cfc42881e7045a6c93fcd5b64b14cefa8d6c5c (diff)
downloaddimension-78dca8153f802f271b4f2aeca33d967a075e485e.tar.xz
Add a dmnsn_unreachable() macro.
Also rename inline.h to compiler.h.
Diffstat (limited to 'libdimension/compiler-internal.h')
-rw-r--r--libdimension/compiler-internal.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/libdimension/compiler-internal.h b/libdimension/compiler-internal.h
new file mode 100644
index 0000000..e59ece2
--- /dev/null
+++ b/libdimension/compiler-internal.h
@@ -0,0 +1,51 @@
+/*************************************************************************
+ * Copyright (C) 2010-2011 Tavian Barnes <tavianator@tavianator.com> *
+ * *
+ * This file is part of The Dimension Library. *
+ * *
+ * The Dimension Library is free software; you can redistribute it and/ *
+ * or modify it under the terms of the GNU Lesser General Public License *
+ * as published by the Free Software Foundation; either version 3 of the *
+ * License, or (at your option) any later version. *
+ * *
+ * The Dimension Library is distributed in the hope that it will be *
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty *
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
+ * Lesser General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU Lesser General Public *
+ * License along with this program. If not, see *
+ * <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+/**
+ * @file
+ * Internally-used compiler abstractions.
+ */
+
+#include <stdbool.h>
+
+#ifdef DMNSN_PROFILE
+ #define dmnsn_likely(test) \
+ dmnsn_expect(!!(test), true, DMNSN_FUNC, __FILE__, __LINE__)
+ #define dmnsn_unlikely(test) \
+ dmnsn_expect(!!(test), false, DMNSN_FUNC, __FILE__, __LINE__)
+#elif defined(__GNUC__)
+ #define dmnsn_likely(test) __builtin_expect(!!(test), true)
+ #define dmnsn_unlikely(test) __builtin_expect(!!(test), false)
+#else
+ #define dmnsn_likely(test) (!!(test))
+ #define dmnsn_unlikely(test) (!!(test))
+#endif
+
+#ifdef __GNUC__
+ #define DMNSN_HOT __attribute__((hot))
+ #define DMNSN_INTERNAL __attribute__((visibility("hidden")))
+ #define DMNSN_DESTRUCTOR __attribute__((destructor(102)))
+ #define DMNSN_LATE_DESTRUCTOR __attribute__((destructor(101)))
+#else
+ #define DMNSN_HOT
+ #define DMNSN_INTERNAL
+ #define DMNSN_DESTRUCTOR
+ #define DMNSN_LATE_DESTRUCTOR
+#endif