projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 9bf86ebb PR |
1 | extern int target_flags; |
| 2 | ||
| 3 | enum reg_class | |
| 4 | { | |
| 5 | NO_REGS, | |
| 6 | AREG, DREG, CREG, BREG, | |
| 7 | Q_REGS, | |
| 8 | SIREG, DIREG, | |
| 9 | INDEX_REGS, | |
| 10 | GENERAL_REGS, | |
| 11 | FP_TOP_REG, FP_SECOND_REG, | |
| 12 | FLOAT_REGS, | |
| 13 | ALL_REGS, LIM_REG_CLASSES | |
| 14 | }; | |
| 15 | extern enum reg_class regclass_map[17 ]; | |
| 16 | ||
| 17 | ||
| 18 | extern struct rtx_def *i386_compare_op0, *i386_compare_op1; | |
| 19 | extern struct rtx_def *(*i386_compare_gen)(), *(*i386_compare_gen_eq)(); | |
| 20 | extern char *hi_reg_name[]; | |
| 21 | extern char *qi_reg_name[]; | |
| 22 | extern char *qi_high_reg_name[]; | |
| 23 | ||
| 24 | enum machine_mode { | |
| 25 | VOIDmode , | |
| 26 | QImode , | |
| 27 | HImode , | |
| 28 | PSImode , | |
| 29 | SImode , | |
| 30 | PDImode , | |
| 31 | DImode , | |
| 32 | TImode , | |
| 33 | OImode , | |
| 34 | QFmode , | |
| 35 | HFmode , | |
| 36 | SFmode , | |
| 37 | DFmode , | |
| 38 | XFmode , | |
| 39 | TFmode , | |
| 40 | SCmode , | |
| 41 | DCmode , | |
| 42 | XCmode , | |
| 43 | TCmode , | |
| 44 | CQImode , | |
| 45 | CHImode , | |
| 46 | CSImode , | |
| 47 | CDImode , | |
| 48 | CTImode , | |
| 49 | COImode , | |
| 50 | BLKmode , | |
| 51 | CCmode , | |
| 52 | CCFPEQmode , | |
| 53 | MAX_MACHINE_MODE }; | |
| 54 | extern char *mode_name[]; | |
| 55 | enum mode_class { MODE_RANDOM, MODE_INT, MODE_FLOAT, MODE_PARTIAL_INT, MODE_CC, | |
| 56 | MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT, MAX_MODE_CLASS}; | |
| 57 | extern enum mode_class mode_class[]; | |
| 58 | extern int mode_size[]; | |
| 59 | extern int mode_unit_size[]; | |
| 60 | extern enum machine_mode mode_wider_mode[]; | |
| 61 | extern enum machine_mode mode_for_size (unsigned int, enum mode_class, int) ; | |
| 62 | extern enum machine_mode get_best_mode (int, int, int, enum machine_mode, int) ; | |
| 63 | extern enum machine_mode class_narrowest_mode[]; | |
| 64 | extern enum machine_mode byte_mode; | |
| 65 | extern enum machine_mode word_mode; | |
| 66 | typedef int ptrdiff_t; | |
| 67 | typedef unsigned int size_t; | |
| 68 | typedef short unsigned int wchar_t; | |
| 69 | typedef unsigned int UQItype __attribute__ ((mode (QI))); | |
| 70 | typedef int SItype __attribute__ ((mode (SI))); | |
| 71 | typedef unsigned int USItype __attribute__ ((mode (SI))); | |
| 72 | typedef int DItype __attribute__ ((mode (DI))); | |
| 73 | typedef unsigned int UDItype __attribute__ ((mode (DI))); | |
| 74 | typedef float SFtype __attribute__ ((mode (SF))); | |
| 75 | typedef float DFtype __attribute__ ((mode (DF))); | |
| 76 | typedef int word_type __attribute__ ((mode (SI))); | |
| 77 | struct DIstruct {SItype low, high;}; | |
| 78 | typedef union | |
| 79 | { | |
| 80 | struct DIstruct s; | |
| 81 | DItype ll; | |
| 82 | } DIunion; | |
| 83 | extern DItype __fixunssfdi (SFtype a); | |
| 84 | extern DItype __fixunsdfdi (DFtype a); | |
| 85 | DItype | |
| 86 | __lshrdi3 (u, b) | |
| 87 | DItype u; | |
| 88 | SItype b; | |
| 89 | { | |
| 90 | DIunion w; | |
| 91 | SItype bm; | |
| 92 | DIunion uu; | |
| 93 | if (b == 0) | |
| 94 | return u; | |
| 95 | uu.ll = u; | |
| 96 | bm = (sizeof (SItype) * 8 ) - b; | |
| 97 | if (bm <= 0) | |
| 98 | { | |
| 99 | w.s.high = 0; | |
| 100 | w.s.low = (USItype)uu.s.high >> -bm; | |
| 101 | } | |
| 102 | else | |
| 103 | { | |
| 104 | USItype carries = (USItype)uu.s.high << bm; | |
| 105 | w.s.high = (USItype)uu.s.high >> b; | |
| 106 | w.s.low = ((USItype)uu.s.low >> b) | carries; | |
| 107 | } | |
| 108 | return w.ll; | |
| 109 | } |