1/* Jump threading was creating FALLTHRU edges out of blocks ending in 2 GOTO_EXPR. */ 3 4extern int frame_pointer_needed; 5 6struct value_data_entry 7{ 8 unsigned int mode; 9 unsigned int oldest_regno; 10 unsigned int next_regno; 11}; 12 13struct value_data 14{ 15 struct value_data_entry e[53]; 16 unsigned int max_value_regs; 17}; 18 19struct rtx_def 20{ 21 unsigned int code: 16; 22 unsigned int mode : 8; 23 unsigned int jump : 1; 24 unsigned int call : 1; 25 unsigned int unchanging : 1; 26 unsigned int volatil : 1; 27 unsigned int in_struct : 1; 28 unsigned int used : 1; 29 unsigned integrated : 1; 30 unsigned frame_related : 1; 31 int fld[1]; 32}; 33 34typedef struct rtx_def *rtx; 35 36enum machine_mode { VOIDmode, BImode, QImode, HImode, SImode, DImode, 37 TImode, OImode, PQImode, PHImode, PSImode, PDImode, QFmode, HFmode, 38 TQFmode, SFmode, DFmode, XFmode, TFmode, QCmode, HCmode, SCmode, 39 DCmode, XCmode, TCmode, CQImode, CHImode, CSImode, CDImode, CTImode, 40 COImode, V1DImode, V2QImode, V2HImode, V2SImode, V2DImode, V4QImode, 41 V4HImode, V4SImode, V4DImode, V8QImode, V8HImode, V8SImode, V8DImode, 42 V16QImode, V2HFmode, V2SFmode, V2DFmode, V4HFmode, V4SFmode, V4DFmode, 43 V8HFmode, V8SFmode, V8DFmode, V16SFmode, BLKmode, CCmode, CCGCmode, 44 CCGOCmode, CCNOmode, CCZmode, CCFPmode, CCFPUmode, MAX_MACHINE_MODE }; 45 46enum mode_class { MODE_RANDOM, MODE_INT, MODE_FLOAT, MODE_PARTIAL_INT, MODE_CC, 47 MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT, 48 MODE_VECTOR_INT, MODE_VECTOR_FLOAT, 49 MAX_MODE_CLASS}; 50 51extern const unsigned char mode_size[(int) MAX_MACHINE_MODE]; 52extern const enum mode_class mode_class[(int) MAX_MACHINE_MODE]; 53 54extern int target_flags; 55 56static void 57copy_value (rtx dest, rtx src, struct value_data *vd) 58{ 59 unsigned int dr = (((dest)->fld[0])); 60 unsigned int sr = (((src)->fld[0])); 61 unsigned int dn, sn; 62 unsigned int i; 63 64 65 66 if (sr == dr) 67 return; 68 69 70 71 if (dr == 7) 72 return; 73 74 75 if (frame_pointer_needed && dr == 6) 76 return; 77 78 79 dn = (((dr) >= 8 && (dr) <= (8 + 7)) || (((dr) >= (20 + 1) && (dr) <= ((20 + 1) + 7)) || ((dr) >= (((((((20 + 1) + 7) + 1) + 7) + 1) + 7) + 1) && (dr) <= ((((((((20 + 1) + 7) + 1) + 7) + 1) + 7) + 1) + 7))) || ((dr) >= (((20 + 1) + 7) + 1) && (dr) <= ((((20 + 1) + 7) + 1) + 7)) ? (((mode_class[(int) (((enum machine_mode) (dest)->mode))]) == MODE_COMPLEX_INT || (mode_class[(int) (((enum machine_mode) (dest)->mode))]) == MODE_COMPLEX_FLOAT) ? 2 : 1) : ((((enum machine_mode) (dest)->mode)) == TFmode ? ((target_flags & 0x00100000) ? 2 : 3) : (((enum machine_mode) (dest)->mode)) == TCmode ? ((target_flags & 0x00100000) ? 4 : 6) : (((mode_size[(int) (((enum machine_mode) (dest)->mode))]) + ((target_flags & 0x00100000) ? 8 : 4) - 1) / ((target_flags & 0x00100000) ? 8 : 4)))); 80 sn = (((sr) >= 8 && (sr) <= (8 + 7)) || (((sr) >= (20 + 1) && (sr) <= ((20 + 1) + 7)) || ((sr) >= (((((((20 + 1) + 7) + 1) + 7) + 1) + 7) + 1) && (sr) <= ((((((((20 + 1) + 7) + 1) + 7) + 1) + 7) + 1) + 7))) || ((sr) >= (((20 + 1) + 7) + 1) && (sr) <= ((((20 + 1) + 7) + 1) + 7)) ? (((mode_class[(int) (((enum machine_mode) (dest)->mode))]) == MODE_COMPLEX_INT || (mode_class[(int) (((enum machine_mode) (dest)->mode))]) == MODE_COMPLEX_FLOAT) ? 2 : 1) : ((((enum machine_mode) (dest)->mode)) == TFmode ? ((target_flags & 0x00100000) ? 2 : 3) : (((enum machine_mode) (dest)->mode)) == TCmode ? ((target_flags & 0x00100000) ? 4 : 6) : (((mode_size[(int) (((enum machine_mode) (dest)->mode))]) + ((target_flags & 0x00100000) ? 8 : 4) - 1) / ((target_flags & 0x00100000) ? 8 : 4)))); 81 if ((dr > sr && dr < sr + sn) 82 || (sr > dr && sr < dr + dn)) 83 return; 84 85 86 87 88 if (vd->e[sr].mode == VOIDmode) 89 set_value_regno (sr, vd->e[dr].mode, vd); 90 else if (sn < (unsigned int) (((sr) >= 8 && (sr) <= (8 + 7)) || (((sr) >= (20 + 1) && (sr) <= ((20 + 1) + 7)) || ((sr) >= (((((((20 + 1) + 7) + 1) + 7) + 1) + 7) + 1) && (sr) <= ((((((((20 + 1) + 7) + 1) + 7) + 1) + 7) + 1) + 7))) || ((sr) >= (((20 + 1) + 7) + 1) && (sr) <= ((((20 + 1) + 7) + 1) + 7)) ? (((mode_class[(int) (vd->e[sr].mode)]) == MODE_COMPLEX_INT || (mode_class[(int) (vd->e[sr].mode)]) == MODE_COMPLEX_FLOAT) ? 2 : 1) : ((vd->e[sr].mode) == TFmode ? ((target_flags & 0x00100000) ? 2 : 3) : (vd->e[sr].mode) == TCmode ? ((target_flags & 0x00100000) ? 4 : 6) : (((mode_size[(int) (vd->e[sr].mode)]) + ((target_flags & 0x00100000) ? 8 : 4) - 1) / ((target_flags & 0x00100000) ? 8 : 4)))) 91 && ((mode_size[(int) (vd->e[sr].mode)]) > ((target_flags & 0x00100000) ? 8 : 4) 92 ? 0 : 0)) 93 return; 94 95 96 97 98 else if (sn > (unsigned int) (((sr) >= 8 && (sr) <= (8 + 7)) || (((sr) >= (20 + 1) && (sr) <= ((20 + 1) + 7)) || ((sr) >= (((((((20 + 1) + 7) + 1) + 7) + 1) + 7) + 1) && (sr) <= ((((((((20 + 1) + 7) + 1) + 7) + 1) + 7) + 1) + 7))) || ((sr) >= (((20 + 1) + 7) + 1) && (sr) <= ((((20 + 1) + 7) + 1) + 7)) ? (((mode_class[(int) (vd->e[sr].mode)]) == MODE_COMPLEX_INT || (mode_class[(int) (vd->e[sr].mode)]) == MODE_COMPLEX_FLOAT) ? 2 : 1) : ((vd->e[sr].mode) == TFmode ? ((target_flags & 0x00100000) ? 2 : 3) : (vd->e[sr].mode) == TCmode ? ((target_flags & 0x00100000) ? 4 : 6) : (((mode_size[(int) (vd->e[sr].mode)]) + ((target_flags & 0x00100000) ? 8 : 4) - 1) / ((target_flags & 0x00100000) ? 8 : 4))))) 99 return; 100 101 102 103 vd->e[dr].oldest_regno = vd->e[sr].oldest_regno; 104 105 for (i = sr; vd->e[i].next_regno != (~(unsigned int) 0); i = vd->e[i].next_regno) 106 continue; 107 vd->e[i].next_regno = dr; 108 109 110 validate_value_data (vd); 111 112} 113