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Make math_force_eval accept non-addressable arguments

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Andreas Schwab 2011-10-26 11:19:35 +02:00
parent e0016b11d6
commit f6ce9294b0
3 changed files with 13 additions and 5 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2011-10-26 Andreas Schwab <schwab@redhat.com>
* math/math_private.h (math_force_eval): Allow non-addressable
arguments.
* sysdeps/i386/fpu/math_private.h (math_force_eval): Likewise.
2011-10-25 Ulrich Drepper <drepper@gmail.com>
* sysdeps/ieee754/dbl-64/e_rem_pio2.c: Comment everything out, the

5
math/math_private.h
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@ -354,8 +354,9 @@ extern void __docos (double __x, double __dx, double __v[]);
#ifndef math_opt_barrier
#define math_opt_barrier(x) \
({ __typeof (x) __x = x; __asm ("" : "+m" (__x)); __x; })
#define math_force_eval(x) __asm __volatile ("" : : "m" (x))
({ __typeof (x) __x = (x); __asm ("" : "+m" (__x)); __x; })
#define math_force_eval(x) \
({ __typeof (x) __x = (x); __asm __volatile ("" : : "m" (__x)); })
#endif

7
sysdeps/i386/fpu/math_private.h
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@ -1,16 +1,17 @@
#ifndef _MATH_PRIVATE_H
#define math_opt_barrier(x) \
({ __typeof(x) __x; \
({ __typeof (x) __x; \
__asm ("" : "=t" (__x) : "0" (x)); \
__x; })
#define math_force_eval(x) \
do \
{ \
__typeof (x) __x = (x); \
if (sizeof (x) <= sizeof (double)) \
__asm __volatile ("" : : "m" (x)); \
__asm __volatile ("" : : "m" (__x)); \
else \
__asm __volatile ("" : : "f" (x)); \
__asm __volatile ("" : : "f" (__x)); \
} \
while (0)