system.h: Move hwint.h include further down.

gcc/
	* system.h: Move hwint.h include further down.
	* hwint.h (sext_hwi, zext_hwi): Define unconditionally.  Add
	gcc_checking_asserts.
	* hwint.c (sext_hwi, zext_hwi): Delete ENABLE_CHECKING versions.

From-SVN: r203906

gcc/ChangeLog

+2013-10-21  Richard Sandiford  <rdsandiford@googlemail.com>
+
+	* system.h: Move hwint.h include further down.
+	* hwint.h (sext_hwi, zext_hwi): Define unconditionally.  Add
+	gcc_checking_asserts.
+	* hwint.c (sext_hwi, zext_hwi): Delete ENABLE_CHECKING versions.
+
 2013-10-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>
 
 	Fix volatile issues in optimize_bit_field_compare.

gcc/hwint.c

@@ -204,35 +204,3 @@ least_common_multiple (HOST_WIDE_INT a, HOST_WIDE_INT b)
 {
   return mul_hwi (abs_hwi (a) / gcd (a, b), abs_hwi (b));
 }
-
-#ifdef ENABLE_CHECKING
-/* Sign extend SRC starting from PREC.  */
-
-HOST_WIDE_INT
-sext_hwi (HOST_WIDE_INT src, unsigned int prec)
-{
-  gcc_checking_assert (prec <= HOST_BITS_PER_WIDE_INT);
-
-  if (prec == HOST_BITS_PER_WIDE_INT)
-    return src;
-  else
-    {
-      int shift = HOST_BITS_PER_WIDE_INT - prec;
-      return (src << shift) >> shift;
-    }
-}
-
-/* Zero extend SRC starting from PREC.  */
-
-unsigned HOST_WIDE_INT
-zext_hwi (unsigned HOST_WIDE_INT src, unsigned int prec)
-{
-  gcc_checking_assert (prec <= HOST_BITS_PER_WIDE_INT);
-
-  if (prec == HOST_BITS_PER_WIDE_INT)
-    return src;
-  else
-    return src & (((HOST_WIDE_INT)1 << prec) - 1);
-}
-
-#endif

gcc/hwint.h

@@ -322,9 +322,6 @@ extern HOST_WIDE_INT least_common_multiple (HOST_WIDE_INT, HOST_WIDE_INT);
 
 /* Sign extend SRC starting from PREC.  */
 
-#ifdef ENABLE_CHECKING
-extern HOST_WIDE_INT sext_hwi (HOST_WIDE_INT, unsigned int);
-#else
 static inline HOST_WIDE_INT
 sext_hwi (HOST_WIDE_INT src, unsigned int prec)
 {
@@ -332,24 +329,23 @@ sext_hwi (HOST_WIDE_INT src, unsigned int prec)
     return src;
   else
     {
+      gcc_checking_assert (prec < HOST_BITS_PER_WIDE_INT);
       int shift = HOST_BITS_PER_WIDE_INT - prec;
       return (src << shift) >> shift;
     }
 }
-#endif
 
 /* Zero extend SRC starting from PREC.  */
-#ifdef ENABLE_CHECKING
-extern unsigned HOST_WIDE_INT zext_hwi (unsigned HOST_WIDE_INT, unsigned int);
-#else
 static inline unsigned HOST_WIDE_INT
 zext_hwi (unsigned HOST_WIDE_INT src, unsigned int prec)
 {
   if (prec == HOST_BITS_PER_WIDE_INT)
     return src;
   else
-    return src & (((HOST_WIDE_INT)1 << prec) - 1);
+    {
+      gcc_checking_assert (prec < HOST_BITS_PER_WIDE_INT);
+      return src & (((HOST_WIDE_INT) 1 << prec) - 1);
+    }
 }
-#endif
 
 #endif /* ! GCC_HWINT_H */

gcc/system.h

@@ -273,9 +273,6 @@ extern int errno;
 # include <limits.h>
 #endif
 
-/* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT.  */
-#include "hwint.h"
-
 /* A macro to determine whether a VALUE lies inclusively within a
    certain range without evaluating the VALUE more than once.  This
    macro won't warn if the VALUE is unsigned and the LOWER bound is
@@ -1063,4 +1060,7 @@ helper_const_non_const_cast (const char *p)
 #define DEBUG_VARIABLE
 #endif
 
+/* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT.  */
+#include "hwint.h"
+
 #endif /* ! GCC_SYSTEM_H */