(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

2 files changed, 61 insertions, 29 deletions

diff --git a/sysdeps/i386/fpu/bits/mathdef.h b/sysdeps/i386/fpu/bits/mathdef.h
new file mode 100644
index 0000000000..ec42ed5df9
--- /dev/null
+++ b/sysdeps/i386/fpu/bits/mathdef.h
@@ -0,0 +1,46 @@
+/* Copyright (C) 1997, 1998, 1999, 2000, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C 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 2.1 of the License, or (at your option) any later version.
+
+   The GNU C 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 the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#if !defined _MATH_H && !defined _COMPLEX_H
+# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
+#endif
+
+#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
+# define _MATH_H_MATHDEF	1
+
+# if defined __FLT_EVAL_METHOD__ && __FLT_EVAL_METHOD__ == 0
+/* When using -mfpmath=sse, values are computed with the precission of the
+   used type.  */
+typedef float float_t;		/* `float' expressions are evaluated as `float'.  */
+typedef double double_t;	/* `double' expressions are evaluated as
+				   `double'.  */
+# else
+/* The ix87 FPUs evaluate all values in the 80 bit floating-point format
+   which is also available for the user as `long double'.  Therefore we
+   define:  */
+typedef long double float_t;	/* `float' expressions are evaluated as
+				   `long double'.  */
+typedef long double double_t;	/* `double' expressions are evaluated as
+				   `long double'.  */
+# endif
+
+/* The values returned by `ilogb' for 0 and NaN respectively.  */
+# define FP_ILOGB0	(-2147483647 - 1)
+# define FP_ILOGBNAN	(-2147483647 - 1)
+
+#endif	/* ISO C99 */
diff --git a/sysdeps/i386/fpu/bits/mathinline.h b/sysdeps/i386/fpu/bits/mathinline.h
index 28547d44b8..e04ce95099 100644
--- a/sysdeps/i386/fpu/bits/mathinline.h
+++ b/sysdeps/i386/fpu/bits/mathinline.h
@@ -1,5 +1,5 @@
 /* Inline math functions for i387.
-   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2006
+   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by John C. Bowman <bowman@math.ualberta.ca>, 1995.
@@ -529,38 +529,24 @@ __inline_mathcodeNP (tanh, __x, \
 
 __inline_mathcodeNP (floor, __x, \
   register long double __value;						      \
-  register int __ignore;						      \
-  unsigned short int __cw;						      \
-  unsigned short int __cwtmp;						      \
-  __asm __volatile ("fnstcw %3\n\t"					      \
-		    "movzwl %3, %1\n\t"					      \
-		    "andl $0xf3ff, %1\n\t"				      \
-		    "orl $0x0400, %1\n\t"	/* rounding down */	      \
-		    "movw %w1, %2\n\t"					      \
-		    "fldcw %2\n\t"					      \
-		    "frndint\n\t"					      \
-		    "fldcw %3"						      \
-		    : "=t" (__value), "=&q" (__ignore), "=m" (__cwtmp),	      \
-		      "=m" (__cw)					      \
-		    : "0" (__x));					      \
+  __volatile unsigned short int __cw;					      \
+  __volatile unsigned short int __cwtmp;				      \
+  __asm __volatile ("fnstcw %0" : "=m" (__cw));				      \
+  __cwtmp = (__cw & 0xf3ff) | 0x0400; /* rounding down */		      \
+  __asm __volatile ("fldcw %0" : : "m" (__cwtmp));			      \
+  __asm __volatile ("frndint" : "=t" (__value) : "0" (__x));		      \
+  __asm __volatile ("fldcw %0" : : "m" (__cw));				      \
   return __value)
 
 __inline_mathcodeNP (ceil, __x, \
   register long double __value;						      \
-  register int __ignore;						      \
-  unsigned short int __cw;						      \
-  unsigned short int __cwtmp;						      \
-  __asm __volatile ("fnstcw %3\n\t"					      \
-		    "movzwl %3, %1\n\t"					      \
-		    "andl $0xf3ff, %1\n\t"				      \
-		    "orl $0x0800, %1\n\t"	/* rounding up */	      \
-		    "movw %w1, %2\n\t"					      \
-		    "fldcw %2\n\t"					      \
-		    "frndint\n\t"					      \
-		    "fldcw %3"						      \
-		    : "=t" (__value), "=&q" (__ignore), "=m" (__cwtmp),	      \
-		      "=m" (__cw)					      \
-		    : "0" (__x));					      \
+  __volatile unsigned short int __cw;					      \
+  __volatile unsigned short int __cwtmp;				      \
+  __asm __volatile ("fnstcw %0" : "=m" (__cw));				      \
+  __cwtmp = (__cw & 0xf3ff) | 0x0800; /* rounding up */			      \
+  __asm __volatile ("fldcw %0" : : "m" (__cwtmp));			      \
+  __asm __volatile ("frndint" : "=t" (__value) : "0" (__x));		      \
+  __asm __volatile ("fldcw %0" : : "m" (__cw));				      \
   return __value)
 
 #ifdef __FAST_MATH__