diff options
Diffstat (limited to 'gnu/gcc2/libgcc/_udiv_w_sdiv.c')
| -rw-r--r-- | gnu/gcc2/libgcc/_udiv_w_sdiv.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/gnu/gcc2/libgcc/_udiv_w_sdiv.c b/gnu/gcc2/libgcc/_udiv_w_sdiv.c deleted file mode 100644 index bae8a625a6b9..000000000000 --- a/gnu/gcc2/libgcc/_udiv_w_sdiv.c +++ /dev/null @@ -1,174 +0,0 @@ -extern int target_flags; - -enum reg_class -{ - NO_REGS, - AREG, DREG, CREG, BREG, - Q_REGS, - SIREG, DIREG, - INDEX_REGS, - GENERAL_REGS, - FP_TOP_REG, FP_SECOND_REG, - FLOAT_REGS, - ALL_REGS, LIM_REG_CLASSES -}; -extern enum reg_class regclass_map[17 ]; - - -extern struct rtx_def *i386_compare_op0, *i386_compare_op1; -extern struct rtx_def *(*i386_compare_gen)(), *(*i386_compare_gen_eq)(); -extern char *hi_reg_name[]; -extern char *qi_reg_name[]; -extern char *qi_high_reg_name[]; - -enum machine_mode { - VOIDmode , - QImode , - HImode , - PSImode , - SImode , - PDImode , - DImode , - TImode , - OImode , - QFmode , - HFmode , - SFmode , - DFmode , - XFmode , - TFmode , - SCmode , - DCmode , - XCmode , - TCmode , - CQImode , - CHImode , - CSImode , - CDImode , - CTImode , - COImode , - BLKmode , - CCmode , - CCFPEQmode , -MAX_MACHINE_MODE }; -extern char *mode_name[]; -enum mode_class { MODE_RANDOM, MODE_INT, MODE_FLOAT, MODE_PARTIAL_INT, MODE_CC, - MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT, MAX_MODE_CLASS}; -extern enum mode_class mode_class[]; -extern int mode_size[]; -extern int mode_unit_size[]; -extern enum machine_mode mode_wider_mode[]; -extern enum machine_mode mode_for_size (unsigned int, enum mode_class, int) ; -extern enum machine_mode get_best_mode (int, int, int, enum machine_mode, int) ; -extern enum machine_mode class_narrowest_mode[]; -extern enum machine_mode byte_mode; -extern enum machine_mode word_mode; -typedef int ptrdiff_t; -typedef unsigned int size_t; -typedef short unsigned int wchar_t; -typedef unsigned int UQItype __attribute__ ((mode (QI))); -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef unsigned int UDItype __attribute__ ((mode (DI))); -typedef float SFtype __attribute__ ((mode (SF))); -typedef float DFtype __attribute__ ((mode (DF))); -typedef int word_type __attribute__ ((mode (SI))); - struct DIstruct {SItype low, high;}; -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; -extern DItype __fixunssfdi (SFtype a); -extern DItype __fixunsdfdi (DFtype a); -USItype -__udiv_w_sdiv (rp, a1, a0, d) - USItype *rp, a1, a0, d; -{ - USItype q, r; - USItype c0, c1, b1; - if ((SItype) d >= 0) - { - if (a1 < d - a1 - (a0 >> ((sizeof (SItype) * 8 ) - 1))) - { - - sdiv_qrnnd (q, r, a1, a0, d); - } - else - { - - __asm__ ("subl %5,%1 - sbbl %3,%0" : "=r" ((USItype)( c1 )), "=&r" ((USItype)( c0 )) : "0" ((USItype)( a1 )), "g" ((USItype)( d >> 1 )), "1" ((USItype)( a0 )), "g" ((USItype)( d << ((sizeof (SItype) * 8 ) - 1) ))) ; - - sdiv_qrnnd (q, r, c1, c0, d); - - q += (USItype) 1 << ((sizeof (SItype) * 8 ) - 1); - } - } - else - { - b1 = d >> 1; - c1 = a1 >> 1; - c0 = (a1 << ((sizeof (SItype) * 8 ) - 1)) + (a0 >> 1); - if (a1 < b1) - { - sdiv_qrnnd (q, r, c1, c0, b1); - r = 2*r + (a0 & 1); - if ((d & 1) != 0) - { - if (r >= q) - r = r - q; - else if (q - r <= d) - { - r = r - q + d; - q--; - } - else - { - r = r - q + 2*d; - q -= 2; - } - } - } - else if (c1 < b1) - { - c1 = (b1 - 1) - c1; - c0 = ~c0; - sdiv_qrnnd (q, r, c1, c0, b1); - q = ~q; - r = (b1 - 1) - r; - r = 2*r + (a0 & 1); - if ((d & 1) != 0) - { - if (r >= q) - r = r - q; - else if (q - r <= d) - { - r = r - q + d; - q--; - } - else - { - r = r - q + 2*d; - q -= 2; - } - } - } - else - { - if (a0 >= -d) - { - q = -1; - r = a0 + d; - } - else - { - q = -2; - r = a0 + 2*d; - } - } - } - *rp = r; - return q; -} |