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m68k: prevent gcc from CSEing mathinline asms

This commit is contained in:
Andreas Schwab 2012-03-23 13:42:08 +01:00
parent 8b37c8a650
commit 3278063a82
2 changed files with 19 additions and 9 deletions
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8
ChangeLog.m68k
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@ -1,3 +1,11 @@
2012-03-23 Andreas Schwab <schwab@linux-m68k.org>
* sysdeps/m68k/m680x0/fpu/bits/mathinline.h (__inline_mathop1):
Mark asm as volatile.
(__scalbn): Likewise.
(__lrint): Likewise.
(__sincos): Likewise.
2012-03-22 Andreas Schwab <schwab@linux-m68k.org> 2012-03-22 Andreas Schwab <schwab@linux-m68k.org>
* sysdeps/m68k/m680x0/fpu/libm-test-ulps: Update. * sysdeps/m68k/m680x0/fpu/libm-test-ulps: Update.

20
sysdeps/m68k/m680x0/fpu/bits/mathinline.h
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@ -146,7 +146,8 @@ __NTH (__signbitl (long double __x))
__m81_defun (float_type, func, (float_type __mathop_x)) \ __m81_defun (float_type, func, (float_type __mathop_x)) \
{ \ { \
float_type __result; \ float_type __result; \
__asm("f" __STRING(op) "%.x %1, %0" : "=f" (__result) : "f" (__mathop_x));\ __asm __volatile__ ("f" __STRING(op) "%.x %1, %0" \
: "=f" (__result) : "f" (__mathop_x)); \
return __result; \ return __result; \
} }
@ -243,8 +244,8 @@ __m81_defun (int, __CONCAT(__isinf,s), (float_type __value)) \
/* There is no branch-condition for infinity, \ /* There is no branch-condition for infinity, \
so we must extract and examine the condition codes manually. */ \ so we must extract and examine the condition codes manually. */ \
unsigned long int __fpsr; \ unsigned long int __fpsr; \
__asm("ftst%.x %1\n" \ __asm ("ftst%.x %1\n" \
"fmove%.l %/fpsr, %0" : "=dm" (__fpsr) : "f" (__value)); \ "fmove%.l %/fpsr, %0" : "=dm" (__fpsr) : "f" (__value)); \
return (__fpsr & (2 << 24)) ? (__fpsr & (8 << 24) ? -1 : 1) : 0; \ return (__fpsr & (2 << 24)) ? (__fpsr & (8 << 24) ? -1 : 1) : 0; \
} \ } \
\ \
@ -262,7 +263,8 @@ __m81_defun (float_type, __CONCAT(__scalbn,s), \
(float_type __x, int __n)) \ (float_type __x, int __n)) \
{ \ { \
float_type __result; \ float_type __result; \
__asm ("fscale%.l %1, %0" : "=f" (__result) : "dmi" (__n), "0" (__x)); \ __asm __volatile__ ("fscale%.l %1, %0" : "=f" (__result) \
: "dmi" (__n), "0" (__x)); \
return __result; \ return __result; \
} }
@ -279,8 +281,8 @@ __inline_functions(long double,l)
__m81_defun (int, __CONCAT(__isnan,s), (float_type __value)) \ __m81_defun (int, __CONCAT(__isnan,s), (float_type __value)) \
{ \ { \
char __result; \ char __result; \
__asm("ftst%.x %1\n" \ __asm ("ftst%.x %1\n" \
"fsun %0" : "=dm" (__result) : "f" (__value)); \ "fsun %0" : "=dm" (__result) : "f" (__value)); \
return __result; \ return __result; \
} }
@ -319,7 +321,7 @@ __m81_defun (float_type, __CONCAT(__nearbyint,s), (float_type __x)) \
__m81_defun (long int, __CONCAT(__lrint,s), (float_type __x)) \ __m81_defun (long int, __CONCAT(__lrint,s), (float_type __x)) \
{ \ { \
long int __result; \ long int __result; \
__asm ("fmove%.l %1, %0" : "=dm" (__result) : "f" (__x)); \ __asm __volatile__ ("fmove%.l %1, %0" : "=dm" (__result) : "f" (__x)); \
return __result; \ return __result; \
} }
@ -337,8 +339,8 @@ __m81_inline void \
__NTH (__m81_u(__CONCAT(__sincos,s))(float_type __x, float_type *__sinx, \ __NTH (__m81_u(__CONCAT(__sincos,s))(float_type __x, float_type *__sinx, \
float_type *__cosx)) \ float_type *__cosx)) \
{ \ { \
__asm ("fsincos%.x %2,%1:%0" \ __asm __volatile__ ("fsincos%.x %2,%1:%0" \
: "=f" (*__sinx), "=f" (*__cosx) : "f" (__x)); \ : "=f" (*__sinx), "=f" (*__cosx) : "f" (__x)); \
} }
__inline_functions (double,) __inline_functions (double,)