mesa: Allow setting GL_TEXTURE_MAX_LEVEL to 0 with GL_TEXTURE_RECTANGLE.

[mesa.git] / src / mesa / main / compiler.h

diff --git a/src/mesa/main/compiler.h b/src/mesa/main/compiler.h
index 61ce5dbdc78c52fdd69eb6c1284c26af4361e7e1..97075f58e562807849e103deaf8c1ce09eceb238 100644 (file)
--- a/src/mesa/main/compiler.h
+++ b/src/mesa/main/compiler.h
@@ -36,11 +36,7 @@
 
 #include <assert.h>
 #include <ctype.h>
-#if defined(__alpha__) && defined(CCPML)
-#include <cpml.h> /* use Compaq's Fast Math Library on Alpha */
-#else
 #include <math.h>
-#endif
 #include <limits.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -90,7 +86,7 @@ extern "C" {
 /**
  * Disable assorted warnings
  */
-#if !defined(OPENSTEP) && (defined(_WIN32) && !defined(__CYGWIN__))
+#if defined(_WIN32) && !defined(__CYGWIN__)
 #  if !defined(__GNUC__) /* mingw environment */
 #    pragma warning( disable : 4068 ) /* unknown pragma */
 #    pragma warning( disable : 4710 ) /* function 'foo' not inlined */
@@ -252,6 +248,21 @@ static INLINE GLuint CPU_TO_LE32(GLuint x)
       (void) sizeof(char [1 - 2*!(COND)]); \
    } while (0)
 
+/**
+ * Unreachable macro. Useful for suppressing "control reaches end of non-void
+ * function" warnings.
+ */
+#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 5
+#define unreachable() __builtin_unreachable()
+#elif (defined(__clang__) && defined(__has_builtin))
+# if __has_builtin(__builtin_unreachable)
+#  define unreachable() __builtin_unreachable()
+# endif
+#endif
+
+#ifndef unreachable
+#define unreachable()
+#endif
 
 #if (__GNUC__ >= 3)
 #define PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a)))
@@ -315,7 +326,7 @@ static INLINE GLuint CPU_TO_LE32(GLuint x)
     defined(ia64) || defined(__ia64__) || \
     defined(__hppa__) || defined(hpux) || \
     defined(__mips) || defined(_MIPS_ARCH) || \
-    defined(__arm__) || \
+    defined(__arm__) || defined(__aarch64__) || \
     defined(__sh__) || defined(__m32r__) || \
     (defined(__sun) && defined(_IEEE_754)) || \
     defined(__alpha__)