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authorUlrich Drepper <drepper@redhat.com>1997-07-14 21:49:20 +0000
committerUlrich Drepper <drepper@redhat.com>1997-07-14 21:49:20 +0000
commitcd6ede759fadcf8cd1f8c069928611d18cef5c1a (patch)
tree9d4bbf1daaf37c365dfa5234d1caf2b6b9547708 /sysdeps/i386/fpu/bits/mathinline.h
parentf21acc89c06c14160eab88246e9dbe0b17eb5f89 (diff)
1997-07-14 23:37 Ulrich Drepper <drepper@cygnus.com> * inet/getnameinfo.c: Pretty print. Correctly enlarge buffers. * login/programs/utmpd.c: Use _() instead of gettext(). * nis/nss_nisplus/nisplus-hosts.c: Optimize some uses of stpcpy away. * nis/nss_nisplus/nisplus-network.c: Likewise. * nis/nss_nisplus/nisplus-proto.c: Likewise. * nis/nss_nisplus/nisplus-rpc.c: Likewise. * nis/nss_nisplus/nisplus-service.c: Likewise. * sysdeps/alpha/fpu/bits/mathinline.h: Only define functions if __OPTIMIZE__. * sysdeps/powerpc/bits/mathinline.h: Likewise. * sysdeps/i386/fpu/bits/mathinline.h: Define ISO C9x comparison function always. * sysdeps/m68k/fpu/bits/mathinline.h: Likewise. * sysdeps/stub/bits/mathinline.h: Add conditionals to show how it should look like in real files. * sysdeps/generic/bits/select.h (__FD_ZERO): Don't use memset to prevent prototype trouble, use simple loop. * sysdeps/i386/bits/select.h [!__GNUC__] (__FD_ZERO): Likewise. * sysdeps/mips/mips64/Implies: Imply ieee754. * sysdeps/unix/sysv/linux/Makefile: Make sure bits/syscall.h is installed. * sysdeps/unix/sysv/linux/sys/syscal.h: Pretty print. 1997-07-14 00:25 Ulrich Drepper <drepper@cygnus.com> * sysdeps/stub/bits/stdio_lim.h: Unify with standalone version. * sysdeps/standalone/bits/stdio_lim.h: Removed. Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>. 1997-06-22 Paul Eggert <eggert@twinsun.com> * time/strftime.c (strftime): Use tm_zone if available, even if _LIBC. * time/tzfile.c (__tzstring): New decl. (__tzfile_read, __tzfile_default): Set __tzname to permanent strings. (__tzfile_default): First two args are now const char *. * time/tzset.c (__tzstring): New function. (tz_rule): Name is now const char *. (struct tzstring_head): New type. (tzstring_list, tzstring_last_buffer_size): New static vars. (__tzset_internal): Time zone names are now permanent, not temporary.
Diffstat (limited to 'sysdeps/i386/fpu/bits/mathinline.h')
-rw-r--r--sysdeps/i386/fpu/bits/mathinline.h112
1 files changed, 57 insertions, 55 deletions
diff --git a/sysdeps/i386/fpu/bits/mathinline.h b/sysdeps/i386/fpu/bits/mathinline.h
index dab5494ac5..42dae92a2a 100644
--- a/sysdeps/i386/fpu/bits/mathinline.h
+++ b/sysdeps/i386/fpu/bits/mathinline.h
@@ -21,7 +21,56 @@
#ifndef _BITS_MATHINLINE_H
#define _BITS_MATHINLINE_H 1
-#if defined __GNUG__ && \
+
+#if defined __USE_ISOC9X && defined __GNUC__ && __GNUC__ >= 2
+/* ISO C 9X defines some macros to perform unordered comparisons. The
+ ix87 FPU supports this with special opcodes and we should use them.
+ These must not be inline functions since we have to be able to handle
+ all floating-point types. */
+# define isgreater(x, y) \
+ ({ int result; \
+ __asm__ ("fucompp; fnstsw; andb $0x45, %%ah; setz %%al;" \
+ "andl $0xff, %0" \
+ : "=a" (result) : "t" (x), "u" (y) : "cc"); \
+ result; })
+
+# define isgreaterequal(x, y) \
+ ({ int result; \
+ __asm__ ("fucompp; fnstsw; testb $0x05, %%ah; setz %%al;" \
+ "andl $0xff, %0" \
+ : "=a" (result) : "t" (x), "u" (y) : "cc"); \
+ result; })
+
+# define isless(x, y) \
+ ({ int result; \
+ __asm__ ("fucompp; fnstsw; xorb $0x01, %%ah; testb $0x45, %%ah;" \
+ "setz %%al; andl $0xff, %0" \
+ : "=a" (result) : "t" (x), "u" (y) : "cc"); \
+ result; })
+
+# define islessequal(x, y) \
+ ({ int result; \
+ __asm__ ("fucompp; fnstsw; xorb $0x01, %%ah; testb $0x05, %%ah;" \
+ "setz %%al; andl $0xff, %0" \
+ : "=a" (result) : "t" (x), "u" (y) : "cc"); \
+ result; })
+
+# define islessgreater(x, y) \
+ ({ int result; \
+ __asm__ ("fucompp; fnstsw; testb $0x44, %%ah; setz %%al;" \
+ "andl $0xff, %0" \
+ : "=a" (result) : "t" (x), "u" (y) : "cc"); \
+ result; })
+
+# define isunordered(x, y) \
+ ({ int result; \
+ __asm__ ("fucompp; fnstsw; sahf; setp %%al; andl $0xff, %0" \
+ : "=a" (result) : "t" (x), "u" (y) : "cc"); \
+ result; })
+#endif
+
+
+#if defined __GNUC__ && \
(__GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ <= 7))
/* gcc 2.7.2 and 2.7.2.1 have problems with inlining `long double'
functions so we disable this now. */
@@ -29,8 +78,9 @@
# define __NO_MATH_INLINES
#endif
+
#ifdef __GNUC__
-#ifndef __NO_MATH_INLINES
+#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
#ifdef __cplusplus
# define __MATH_INLINE __inline
@@ -258,10 +308,8 @@ __log2 (double __x)
{
register double __value;
__asm __volatile__
- ("fld1\n\t"
- "fxch\n\t"
- "fyl2x"
- : "=t" (__value) : "0" (__x));
+ ("fyl2x"
+ : "=t" (__value) : "0" (__x), "u" (1.0));
return __value;
}
@@ -441,7 +489,10 @@ logb (double __x)
return __value;
}
+#endif
+
+#ifdef __USE_MISC
__MATH_INLINE double drem (double __x, double __y);
__MATH_INLINE double
drem (double __x, double __y)
@@ -471,55 +522,6 @@ __finite (double __x)
return __result;
}
-
-/* ISO C 9X defines some macros to perform unordered comparisons. The
- ix87 FPU supports this with special opcodes and we should use them.
- These must not be inline functions since we have to be able to handle
- all floating-point types. */
-# define isgreater(x, y) \
- ({ int result; \
- __asm__ ("fucompp; fnstsw; andb $0x45, %%ah; setz %%al;" \
- "andl $0xff, %0" \
- : "=a" (result) : "t" (x), "u" (y) : "cc"); \
- result; })
-
-# define isgreaterequal(x, y) \
- ({ int result; \
- __asm__ ("fucompp; fnstsw; testb $0x05, %%ah; setz %%al;" \
- "andl $0xff, %0" \
- : "=a" (result) : "t" (x), "u" (y) : "cc"); \
- result; })
-
-# define isless(x, y) \
- ({ int result; \
- __asm__ ("fucompp; fnstsw; xorb $0x01, %%ah; testb $0x45, %%ah;" \
- "setz %%al; andl $0xff, %0" \
- : "=a" (result) : "t" (x), "u" (y) : "cc"); \
- result; })
-
-# define islessequal(x, y) \
- ({ int result; \
- __asm__ ("fucompp; fnstsw; xorb $0x01, %%ah; testb $0x05, %%ah;" \
- "setz %%al; andl $0xff, %0" \
- : "=a" (result) : "t" (x), "u" (y) : "cc"); \
- result; })
-
-# define islessgreater(x, y) \
- ({ int result; \
- __asm__ ("fucompp; fnstsw; testb $0x44, %%ah; setz %%al;" \
- "andl $0xff, %0" \
- : "=a" (result) : "t" (x), "u" (y) : "cc"); \
- result; })
-
-# define isunordered(x, y) \
- ({ int result; \
- __asm__ ("fucompp; fnstsw; sahf; setp %%al; andl $0xff, %0" \
- : "=a" (result) : "t" (x), "u" (y) : "cc"); \
- result; })
-#endif
-
-
-#ifdef __USE_MISC
__MATH_INLINE double coshm1 (double __x);
__MATH_INLINE double
coshm1 (double __x)