summaryrefslogtreecommitdiff
path: root/sysdeps/i386/fpu/bits/mathinline.h
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/i386/fpu/bits/mathinline.h')
-rw-r--r--sysdeps/i386/fpu/bits/mathinline.h157
1 files changed, 85 insertions, 72 deletions
diff --git a/sysdeps/i386/fpu/bits/mathinline.h b/sysdeps/i386/fpu/bits/mathinline.h
index c6b9331f9a..17f62a080f 100644
--- a/sysdeps/i386/fpu/bits/mathinline.h
+++ b/sysdeps/i386/fpu/bits/mathinline.h
@@ -73,6 +73,10 @@
#ifdef __GNUC__
#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
+/* The gcc, version 2.7 or below, has problems with all this inlining
+ code. So disable it for this version of the compiler. */
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 7)
+
#ifdef __cplusplus
# define __MATH_INLINE __inline
#else
@@ -154,6 +158,80 @@
}
+/* Miscellaneous functions */
+
+__inline_mathcode (__sgn, __x, \
+ return __x == 0.0 ? 0.0 : (__x > 0.0 ? 1.0 : -1.0))
+
+__inline_mathcode (__pow2, __x, \
+ register long double __value; \
+ register long double __exponent; \
+ long int __p = (long int) __x; \
+ if (__x == (long double) __p) \
+ { \
+ __asm __volatile__ \
+ ("fscale" \
+ : "=t" (__value) : "0" (1.0), "u" (__x)); \
+ return __value; \
+ } \
+ __asm __volatile__ \
+ ("fldl %%st(0)\n\t" \
+ "frndint # int(x)\n\t" \
+ "fxch\n\t" \
+ "fsub %%st(1) # fract(x)\n\t" \
+ "f2xm1 # 2^(fract(x)) - 1\n\t" \
+ : "=t" (__value), "=u" (__exponent) : "0" (__x)); \
+ __value += 1.0; \
+ __asm __volatile__ \
+ ("fscale" \
+ : "=t" (__value) : "0" (__value), "u" (__exponent)); \
+ return __value)
+
+#define __sincos_code \
+ register long double __cosr; \
+ register long double __sinr; \
+ __asm __volatile__ \
+ ("fsincos\n\t" \
+ "fnstsw %%ax\n\t" \
+ "testl $0x400, %%eax\n\t" \
+ "jz 1f\n\t" \
+ "fldpi\n\t" \
+ "fadd %%st(0)\n\t" \
+ "fxch %%st(1)\n\t" \
+ "2: fprem1\n\t" \
+ "fnstsw %%ax\n\t" \
+ "testl $0x400, %%eax\n\t" \
+ "jnz 2b\n\t" \
+ "fstp %%st(1)\n\t" \
+ "fsincos\n\t" \
+ "1:" \
+ : "=t" (__cosr), "=u" (__sinr) : "0" (__x)); \
+ *__sinx = __sinr; \
+ *__cosx = __cosr
+
+__MATH_INLINE void __sincos (double __x, double *__sinx, double *__cosx);
+__MATH_INLINE void
+__sincos (double __x, double *__sinx, double *__cosx)
+{
+ __sincos_code;
+}
+
+__MATH_INLINE void __sincosf (float __x, float *__sinx, float *__cosx);
+__MATH_INLINE void
+__sincosf (float __x, float *__sinx, float *__cosx)
+{
+ __sincos_code;
+}
+
+__MATH_INLINE void __sincosl (long double __x, long double *__sinx,
+ long double *__cosx);
+__MATH_INLINE void
+__sincosl (long double __x, long double *__sinx, long double *__cosx)
+{
+ __sincos_code;
+}
+
+
/* Optimized inline implementation, sometimes with reduced precision
and/or argument range. */
@@ -278,10 +356,10 @@ __inline_mathop (sqrt, "fsqrt")
__inline_mathop_ (long double, __sqrtl, "fsqrt")
#if defined __GNUC__ && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 8)
-__inline_mathcode_ (fabs, __x, return __builtin_fabs (__x))
-__inline_mathcode_ (fabsf, __x, return __builtin_fabsf (__x))
-__inline_mathcode_ (fabsl, __x, return __builtin_fabsl (__x))
-__inline_mathcode_ (__fabsl, __x, return __builtin_fabsl (__x))
+__inline_mathcode_ (double, fabs, __x, return __builtin_fabs (__x))
+__inline_mathcode_ (float, fabsf, __x, return __builtin_fabsf (__x))
+__inline_mathcode_ (long double, fabsl, __x, return __builtin_fabsl (__x))
+__inline_mathcode_ (long double, __fabsl, __x, return __builtin_fabsl (__x))
#else
__inline_mathop (fabs, "fabs")
__inline_mathop_ (long double, __fabsl, "fabs")
@@ -356,7 +434,7 @@ ldexp (double __x, int __y)
/* Optimized versions for some non-standardized functions. */
#if defined __USE_ISOC9X || defined __USE_MISC
-__inline_mathop_decl (log2, "fyl2x", "u" (1.0), "0" (__x) : "st(1)")
+__inline_mathop(log2, "fld1; fxch; fyl2x")
__inline_mathcode (expm1, __x, __expm1_code)
@@ -443,15 +521,12 @@ __finite (double __x)
("orl $0x800fffff, %0\n\t"
"incl %0\n\t"
"shrl $31, %0"
- : "=q" (__result) : "0" (((int *) &__x)[1]));
+ : "=q" (__result) : "0" (((int *) &__x)[1]) : "cc");
return __result;
}
/* Miscellaneous functions */
-__inline_mathcode (__sgn, __x, \
- return __x == 0.0 ? 0.0 : (__x > 0.0 ? 1.0 : -1.0))
-
__inline_mathcode (__coshm1, __x, \
register long double __exm1 = __expm1l (__fabsl (__x)); \
return 0.5 * (__exm1 / (__exm1 + 1.0)) * __exm1)
@@ -459,69 +534,6 @@ __inline_mathcode (__coshm1, __x, \
__inline_mathcode (__acosh1p, __x, \
return log1pl (__x + __sqrtl (__x) * __sqrtl (__x + 2.0)))
-__inline_mathcode (__pow2, __x, \
- register long double __value; \
- register long double __exponent; \
- long int __p = (long int) __x; \
- if (__x == (long double) __p) \
- return ldexpl (1.0, __p); \
- __asm __volatile__ \
- ("fldl %%st(0)\n\t" \
- "frndint # int(x)\n\t" \
- "fxch\n\t" \
- "fsub %%st(1) # fract(x)\n\t" \
- "f2xm1 # 2^(fract(x)) - 1\n\t" \
- : "=t" (__value), "=u" (__exponent) : "0" (__x)); \
- __value += 1.0; \
- __asm __volatile__ \
- ("fscale" \
- : "=t" (__value) : "0" (__value), "u" (__exponent)); \
- return __value)
-
-#define __sincos_code \
- register long double __cosr; \
- register long double __sinr; \
- __asm __volatile__ \
- ("fsincos\n\t" \
- "fnstsw %%ax\n\t" \
- "testl $0x400, %%eax\n\t" \
- "jz 1f\n\t" \
- "fldpi\n\t" \
- "fadd %%st(0)\n\t" \
- "fxch %%st(1)\n\t" \
- "2: fprem1\n\t" \
- "fnstsw %%ax\n\t" \
- "testl $0x400, %%eax\n\t" \
- "jnz 2b\n\t" \
- "fstp %%st(1)\n\t" \
- "fsincos\n\t" \
- "1:" \
- : "=t" (__cosr), "=u" (__sinr) : "0" (__x)); \
- *__sinx = __sinr; \
- *__cosx = __cosr
-
-__MATH_INLINE void __sincos (double __x, double *__sinx, double *__cosx);
-__MATH_INLINE void
-__sincos (double __x, double *__sinx, double *__cosx)
-{
- __sincos_code;
-}
-
-__MATH_INLINE void __sincosf (float __x, float *__sinx, float *__cosx);
-__MATH_INLINE void
-__sincosf (float __x, float *__sinx, float *__cosx)
-{
- __sincos_code;
-}
-
-__MATH_INLINE void __sincosl (long double __x, long double *__sinx,
- long double *__cosx);
-__MATH_INLINE void
-__sincosl (long double __x, long double *__sinx, long double *__cosx)
-{
- __sincos_code;
-}
-
#endif /* __USE_MISC */
/* Undefine some of the large macros which are not used anymore. */
@@ -530,6 +542,7 @@ __sincosl (long double __x, long double *__sinx, long double *__cosx)
#undef __atan2_code
#undef __sincos_code
+#endif /* Not gcc <= 2.7. */
#endif /* __NO_MATH_INLINES */
#endif /* __GNUC__ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-08 13:04:01 +0000