/* Software floating-point emulation.
Basic four-word fraction declaration and manipulation.
- Copyright (C) 1997-2014 Free Software Foundation, Inc.
+ Copyright (C) 1997-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (rth@cygnus.com),
Jakub Jelinek (jj@ultra.linux.cz),
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#ifndef SOFT_FP_OP_4_H
+#define SOFT_FP_OP_4_H 1
+
#define _FP_FRAC_DECL_4(X) _FP_W_TYPE X##_f[4]
#define _FP_FRAC_COPY_4(D, S) \
(D##_f[0] = S##_f[0], D##_f[1] = S##_f[1], \
do \
{ \
int _FP_FRAC_SRS_4_sticky; \
- _FP_FRAC_SRST_4 (X, _FP_FRAC_SRS_4_sticky, N, size); \
+ _FP_FRAC_SRST_4 (X, _FP_FRAC_SRS_4_sticky, (N), (size)); \
X##_f[0] |= _FP_FRAC_SRS_4_sticky; \
} \
while (0)
do \
{ \
if (X##_f[3]) \
- __FP_CLZ (R, X##_f[3]); \
+ __FP_CLZ ((R), X##_f[3]); \
else if (X##_f[2]) \
{ \
- __FP_CLZ (R, X##_f[2]); \
- R += _FP_W_TYPE_SIZE; \
+ __FP_CLZ ((R), X##_f[2]); \
+ (R) += _FP_W_TYPE_SIZE; \
} \
else if (X##_f[1]) \
{ \
- __FP_CLZ (R, X##_f[1]); \
- R += _FP_W_TYPE_SIZE*2; \
+ __FP_CLZ ((R), X##_f[1]); \
+ (R) += _FP_W_TYPE_SIZE*2; \
} \
else \
{ \
- __FP_CLZ (R, X##_f[0]); \
- R += _FP_W_TYPE_SIZE*3; \
+ __FP_CLZ ((R), X##_f[0]); \
+ (R) += _FP_W_TYPE_SIZE*3; \
} \
} \
while (0)
{ \
_FP_FRAC_DECL_8 (_FP_MUL_MEAT_4_wide_z); \
\
- _FP_MUL_MEAT_DW_4_wide (wfracbits, _FP_MUL_MEAT_4_wide_z, \
+ _FP_MUL_MEAT_DW_4_wide ((wfracbits), _FP_MUL_MEAT_4_wide_z, \
X, Y, doit); \
\
/* Normalize since we know where the msb of the multiplicands \
were (bit B), we know that the msb of the of the product is \
at either 2B or 2B-1. */ \
- _FP_FRAC_SRS_8 (_FP_MUL_MEAT_4_wide_z, wfracbits-1, 2*wfracbits); \
+ _FP_FRAC_SRS_8 (_FP_MUL_MEAT_4_wide_z, (wfracbits)-1, \
+ 2*(wfracbits)); \
__FP_FRAC_SET_4 (R, _FP_FRAC_WORD_8 (_FP_MUL_MEAT_4_wide_z, 3), \
_FP_FRAC_WORD_8 (_FP_MUL_MEAT_4_wide_z, 2), \
_FP_FRAC_WORD_8 (_FP_MUL_MEAT_4_wide_z, 1), \
{ \
_FP_FRAC_DECL_8 (_FP_MUL_MEAT_4_gmp_z); \
\
- _FP_MUL_MEAT_DW_4_gmp (wfracbits, _FP_MUL_MEAT_4_gmp_z, X, Y); \
+ _FP_MUL_MEAT_DW_4_gmp ((wfracbits), _FP_MUL_MEAT_4_gmp_z, X, Y); \
\
/* Normalize since we know where the msb of the multiplicands \
were (bit B), we know that the msb of the of the product is \
at either 2B or 2B-1. */ \
- _FP_FRAC_SRS_8 (_FP_MUL_MEAT_4_gmp_z, wfracbits-1, 2*wfracbits); \
+ _FP_FRAC_SRS_8 (_FP_MUL_MEAT_4_gmp_z, (wfracbits)-1, \
+ 2*(wfracbits)); \
__FP_FRAC_SET_4 (R, _FP_FRAC_WORD_8 (_FP_MUL_MEAT_4_gmp_z, 3), \
_FP_FRAC_WORD_8 (_FP_MUL_MEAT_4_gmp_z, 2), \
_FP_FRAC_WORD_8 (_FP_MUL_MEAT_4_gmp_z, 1), \
{ \
while (q) \
{ \
- T##_f[3] = S##_f[3] + q; \
+ T##_f[3] = S##_f[3] + (q); \
if (T##_f[3] <= X##_f[3]) \
{ \
- S##_f[3] = T##_f[3] + q; \
+ S##_f[3] = T##_f[3] + (q); \
X##_f[3] -= T##_f[3]; \
- R##_f[3] += q; \
+ R##_f[3] += (q); \
} \
_FP_FRAC_SLL_4 (X, 1); \
- q >>= 1; \
+ (q) >>= 1; \
} \
- q = (_FP_W_TYPE) 1 << (_FP_W_TYPE_SIZE - 1); \
+ (q) = (_FP_W_TYPE) 1 << (_FP_W_TYPE_SIZE - 1); \
while (q) \
{ \
- T##_f[2] = S##_f[2] + q; \
+ T##_f[2] = S##_f[2] + (q); \
T##_f[3] = S##_f[3]; \
if (T##_f[3] < X##_f[3] \
|| (T##_f[3] == X##_f[3] && T##_f[2] <= X##_f[2])) \
{ \
- S##_f[2] = T##_f[2] + q; \
+ S##_f[2] = T##_f[2] + (q); \
S##_f[3] += (T##_f[2] > S##_f[2]); \
__FP_FRAC_DEC_2 (X##_f[3], X##_f[2], \
T##_f[3], T##_f[2]); \
- R##_f[2] += q; \
+ R##_f[2] += (q); \
} \
_FP_FRAC_SLL_4 (X, 1); \
- q >>= 1; \
+ (q) >>= 1; \
} \
- q = (_FP_W_TYPE) 1 << (_FP_W_TYPE_SIZE - 1); \
+ (q) = (_FP_W_TYPE) 1 << (_FP_W_TYPE_SIZE - 1); \
while (q) \
{ \
- T##_f[1] = S##_f[1] + q; \
+ T##_f[1] = S##_f[1] + (q); \
T##_f[2] = S##_f[2]; \
T##_f[3] = S##_f[3]; \
if (T##_f[3] < X##_f[3] \
|| (T##_f[2] == X##_f[2] \
&& T##_f[1] <= X##_f[1])))) \
{ \
- S##_f[1] = T##_f[1] + q; \
+ S##_f[1] = T##_f[1] + (q); \
S##_f[2] += (T##_f[1] > S##_f[1]); \
S##_f[3] += (T##_f[2] > S##_f[2]); \
__FP_FRAC_DEC_3 (X##_f[3], X##_f[2], X##_f[1], \
T##_f[3], T##_f[2], T##_f[1]); \
- R##_f[1] += q; \
+ R##_f[1] += (q); \
} \
_FP_FRAC_SLL_4 (X, 1); \
- q >>= 1; \
+ (q) >>= 1; \
} \
- q = (_FP_W_TYPE) 1 << (_FP_W_TYPE_SIZE - 1); \
- while (q != _FP_WORK_ROUND) \
+ (q) = (_FP_W_TYPE) 1 << (_FP_W_TYPE_SIZE - 1); \
+ while ((q) != _FP_WORK_ROUND) \
{ \
- T##_f[0] = S##_f[0] + q; \
+ T##_f[0] = S##_f[0] + (q); \
T##_f[1] = S##_f[1]; \
T##_f[2] = S##_f[2]; \
T##_f[3] = S##_f[3]; \
if (_FP_FRAC_GE_4 (X, T)) \
{ \
- S##_f[0] = T##_f[0] + q; \
+ S##_f[0] = T##_f[0] + (q); \
S##_f[1] += (T##_f[0] > S##_f[0]); \
S##_f[2] += (T##_f[1] > S##_f[1]); \
S##_f[3] += (T##_f[2] > S##_f[2]); \
_FP_FRAC_DEC_4 (X, T); \
- R##_f[0] += q; \
+ R##_f[0] += (q); \
} \
_FP_FRAC_SLL_4 (X, 1); \
- q >>= 1; \
+ (q) >>= 1; \
} \
if (!_FP_FRAC_ZEROP_4 (X)) \
{ \
#endif
#ifndef __FP_FRAC_SUB_3
-# define __FP_FRAC_SUB_3(r2, r1, r0, x2, x1, x0, y2, y1, y0) \
- do \
- { \
- _FP_W_TYPE __FP_FRAC_SUB_3_c1, __FP_FRAC_SUB_3_c2; \
- r0 = x0 - y0; \
- __FP_FRAC_SUB_3_c1 = r0 > x0; \
- r1 = x1 - y1; \
- __FP_FRAC_SUB_3_c2 = r1 > x1; \
- r1 -= __FP_FRAC_SUB_3_c1; \
- __FP_FRAC_SUB_3_c2 |= __FP_FRAC_SUB_3_c1 && (y1 == x1); \
- r2 = x2 - y2 - __FP_FRAC_SUB_3_c2; \
- } \
+# define __FP_FRAC_SUB_3(r2, r1, r0, x2, x1, x0, y2, y1, y0) \
+ do \
+ { \
+ _FP_W_TYPE __FP_FRAC_SUB_3_tmp[2]; \
+ _FP_W_TYPE __FP_FRAC_SUB_3_c1, __FP_FRAC_SUB_3_c2; \
+ __FP_FRAC_SUB_3_tmp[0] = x0 - y0; \
+ __FP_FRAC_SUB_3_c1 = __FP_FRAC_SUB_3_tmp[0] > x0; \
+ __FP_FRAC_SUB_3_tmp[1] = x1 - y1; \
+ __FP_FRAC_SUB_3_c2 = __FP_FRAC_SUB_3_tmp[1] > x1; \
+ __FP_FRAC_SUB_3_tmp[1] -= __FP_FRAC_SUB_3_c1; \
+ __FP_FRAC_SUB_3_c2 |= __FP_FRAC_SUB_3_c1 && (y1 == x1); \
+ r2 = x2 - y2 - __FP_FRAC_SUB_3_c2; \
+ r1 = __FP_FRAC_SUB_3_tmp[1]; \
+ r0 = __FP_FRAC_SUB_3_tmp[0]; \
+ } \
while (0)
#endif
#ifndef __FP_FRAC_SUB_4
# define __FP_FRAC_SUB_4(r3, r2, r1, r0, x3, x2, x1, x0, y3, y2, y1, y0) \
- do \
- { \
- _FP_W_TYPE __FP_FRAC_SUB_4_c1, __FP_FRAC_SUB_4_c2; \
- _FP_W_TYPE __FP_FRAC_SUB_4_c3; \
- r0 = x0 - y0; \
- __FP_FRAC_SUB_4_c1 = r0 > x0; \
- r1 = x1 - y1; \
- __FP_FRAC_SUB_4_c2 = r1 > x1; \
- r1 -= __FP_FRAC_SUB_4_c1; \
- __FP_FRAC_SUB_4_c2 |= __FP_FRAC_SUB_4_c1 && (y1 == x1); \
- r2 = x2 - y2; \
- __FP_FRAC_SUB_4_c3 = r2 > x2; \
- r2 -= __FP_FRAC_SUB_4_c2; \
- __FP_FRAC_SUB_4_c3 |= __FP_FRAC_SUB_4_c2 && (y2 == x2); \
- r3 = x3 - y3 - __FP_FRAC_SUB_4_c3; \
- } \
+ do \
+ { \
+ _FP_W_TYPE __FP_FRAC_SUB_4_tmp[3]; \
+ _FP_W_TYPE __FP_FRAC_SUB_4_c1, __FP_FRAC_SUB_4_c2; \
+ _FP_W_TYPE __FP_FRAC_SUB_4_c3; \
+ __FP_FRAC_SUB_4_tmp[0] = x0 - y0; \
+ __FP_FRAC_SUB_4_c1 = __FP_FRAC_SUB_4_tmp[0] > x0; \
+ __FP_FRAC_SUB_4_tmp[1] = x1 - y1; \
+ __FP_FRAC_SUB_4_c2 = __FP_FRAC_SUB_4_tmp[1] > x1; \
+ __FP_FRAC_SUB_4_tmp[1] -= __FP_FRAC_SUB_4_c1; \
+ __FP_FRAC_SUB_4_c2 |= __FP_FRAC_SUB_4_c1 && (y1 == x1); \
+ __FP_FRAC_SUB_4_tmp[2] = x2 - y2; \
+ __FP_FRAC_SUB_4_c3 = __FP_FRAC_SUB_4_tmp[2] > x2; \
+ __FP_FRAC_SUB_4_tmp[2] -= __FP_FRAC_SUB_4_c2; \
+ __FP_FRAC_SUB_4_c3 |= __FP_FRAC_SUB_4_c2 && (y2 == x2); \
+ r3 = x3 - y3 - __FP_FRAC_SUB_4_c3; \
+ r2 = __FP_FRAC_SUB_4_tmp[2]; \
+ r1 = __FP_FRAC_SUB_4_tmp[1]; \
+ r0 = __FP_FRAC_SUB_4_tmp[0]; \
+ } \
while (0)
#endif
#define _FP_FRAC_ASSEMBLE_4(r, X, rsize) \
do \
{ \
- if (rsize <= _FP_W_TYPE_SIZE) \
- r = X##_f[0]; \
- else if (rsize <= 2*_FP_W_TYPE_SIZE) \
+ if ((rsize) <= _FP_W_TYPE_SIZE) \
+ (r) = X##_f[0]; \
+ else if ((rsize) <= 2*_FP_W_TYPE_SIZE) \
{ \
- r = X##_f[1]; \
- r = (rsize <= _FP_W_TYPE_SIZE ? 0 : r << _FP_W_TYPE_SIZE); \
- r += X##_f[0]; \
+ (r) = X##_f[1]; \
+ (r) = ((rsize) <= _FP_W_TYPE_SIZE \
+ ? 0 \
+ : (r) << _FP_W_TYPE_SIZE); \
+ (r) += X##_f[0]; \
} \
else \
{ \
/* I'm feeling lazy so we deal with int == 3words \
(implausible) and int == 4words as a single case. */ \
- r = X##_f[3]; \
- r = (rsize <= _FP_W_TYPE_SIZE ? 0 : r << _FP_W_TYPE_SIZE); \
- r += X##_f[2]; \
- r = (rsize <= _FP_W_TYPE_SIZE ? 0 : r << _FP_W_TYPE_SIZE); \
- r += X##_f[1]; \
- r = (rsize <= _FP_W_TYPE_SIZE ? 0 : r << _FP_W_TYPE_SIZE); \
- r += X##_f[0]; \
+ (r) = X##_f[3]; \
+ (r) = ((rsize) <= _FP_W_TYPE_SIZE \
+ ? 0 \
+ : (r) << _FP_W_TYPE_SIZE); \
+ (r) += X##_f[2]; \
+ (r) = ((rsize) <= _FP_W_TYPE_SIZE \
+ ? 0 \
+ : (r) << _FP_W_TYPE_SIZE); \
+ (r) += X##_f[1]; \
+ (r) = ((rsize) <= _FP_W_TYPE_SIZE \
+ ? 0 \
+ : (r) << _FP_W_TYPE_SIZE); \
+ (r) += X##_f[0]; \
} \
} \
while (0)
/* Move an integer of size rsize into X's fractional part. We rely on
the _f[] array consisting of words of size _FP_W_TYPE_SIZE to avoid
having to mask the values we store into it. */
-#define _FP_FRAC_DISASSEMBLE_4(X, r, rsize) \
- do \
- { \
- X##_f[0] = r; \
- X##_f[1] = (rsize <= _FP_W_TYPE_SIZE ? 0 : r >> _FP_W_TYPE_SIZE); \
- X##_f[2] = (rsize <= 2*_FP_W_TYPE_SIZE ? 0 : r >> 2*_FP_W_TYPE_SIZE); \
- X##_f[3] = (rsize <= 3*_FP_W_TYPE_SIZE ? 0 : r >> 3*_FP_W_TYPE_SIZE); \
- } \
+#define _FP_FRAC_DISASSEMBLE_4(X, r, rsize) \
+ do \
+ { \
+ X##_f[0] = (r); \
+ X##_f[1] = ((rsize) <= _FP_W_TYPE_SIZE \
+ ? 0 \
+ : (r) >> _FP_W_TYPE_SIZE); \
+ X##_f[2] = ((rsize) <= 2*_FP_W_TYPE_SIZE \
+ ? 0 \
+ : (r) >> 2*_FP_W_TYPE_SIZE); \
+ X##_f[3] = ((rsize) <= 3*_FP_W_TYPE_SIZE \
+ ? 0 \
+ : (r) >> 3*_FP_W_TYPE_SIZE); \
+ } \
while (0)
#define _FP_FRAC_COPY_4_1(D, S) \
while (0)
#define _FP_FRAC_COPY_4_4(D, S) _FP_FRAC_COPY_4 (D, S)
+
+#endif /* !SOFT_FP_OP_4_H */
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