alpha: Always handle inexact in rint implementations

ChangeLog.alpha

@@ -1,3 +1,33 @@
+2012-06-15  Richard Henderson  <rth@twiddle.net>
+
+	* sysdeps/alpha/fpu/s_rint.c (__rint): Handle inexact regardless
+	of -mieee-with-inexact.
+	* sysdeps/alpha/fpu/s_rintf.c (__rintf): Likewise.
+
+	[BZ #13848]
+	* sysdeps/alpha/fpu/s_nearbyint.c (__nearbyint): Fix corner cases
+	similar to BZ#5350.
+	* sysdeps/alpha/fpu/s_nearbyintf.c (__nearbyintf): Likewise.
+
+	* sysdeps/alpha/fpu/s_copysign.c (__copysign): Use builtin.
+	* sysdeps/alpha/fpu/s_copysignf.c (__copysignf): Use builtin.
+
+	* sysdeps/unix/sysv/linux/alpha/bits/resource.h (RLIMIT_RTTIME): New.
+	(prlimit, prlimit64): New declarations.
+	* sysdeps/unix/sysv/linux/alpha/bits/shm.h (SHM_EXEC): New.
+	* sysdeps/unix/sysv/linux/alpha/bits/stat.h: Use only __USE_ATFILE
+	to protect UTIME_NOW and UTIME_OMIT.
+
+	* sysdeps/alpha/fpu/cfloat-compat.h: Remove __GNUC_PREREQ check.
+	* sysdeps/alpha/fpu/s_fabs.c (__fabs): Likewise.
+	* sysdeps/alpha/fpu/s_fabsf.c (__fabsf): Likewise.
+	* sysdeps/unix/sysv/linux/alpha/sysconf.c (implver): Remove.
+	(amask): Remove.
+	(__sysconf): Use builtins directly.
+
+	* sysdeps/alpha/bits/mathdef.h (float_t): Define as float
+	regardless of __GNUC__.
+
 2012-06-06  Richard Henderson  <rth@twiddle.net>
 
 	* sysdeps/alpha/strncmp.S: Bound count to LONG_MAX at startup.

sysdeps/alpha/fpu/s_rint.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2006, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson.
 
@@ -26,12 +26,7 @@ __rint (double x)
   if (isless (fabs (x), 9007199254740992.0))	/* 1 << DBL_MANT_DIG */
     {
       double tmp1, new_x;
-      __asm (
-#ifdef _IEEE_FP_INEXACT
-	     "cvttq/svid %2,%1\n\t"
-#else
-	     "cvttq/svd %2,%1\n\t"
-#endif
+      __asm ("cvttq/svid %2,%1\n\t"
 	     "cvtqt/d %1,%0\n\t"
 	     : "=f"(new_x), "=&f"(tmp1)
 	     : "f"(x));

sysdeps/alpha/fpu/s_rintf.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson.
 
@@ -32,11 +32,7 @@ __rintf (float x)
       float tmp1, tmp2, new_x;
 
       __asm ("cvtst/s %3,%2\n\t"
-#ifdef _IEEE_FP_INEXACT
 	     "cvttq/svid %2,%1\n\t"
-#else
-	     "cvttq/svd %2,%1\n\t"
-#endif
 	     "cvtqt/d %1,%0\n\t"
 	     : "=f"(new_x), "=&f"(tmp1), "=&f"(tmp2)
 	     : "f"(x));