|
111
|
1 /* Jump threading was creating FALLTHRU edges out of blocks ending in
|
|
|
2 GOTO_EXPR. */
|
|
|
3
|
|
|
4 extern int frame_pointer_needed;
|
|
|
5
|
|
|
6 struct value_data_entry
|
|
|
7 {
|
|
|
8 unsigned int mode;
|
|
|
9 unsigned int oldest_regno;
|
|
|
10 unsigned int next_regno;
|
|
|
11 };
|
|
|
12
|
|
|
13 struct value_data
|
|
|
14 {
|
|
|
15 struct value_data_entry e[53];
|
|
|
16 unsigned int max_value_regs;
|
|
|
17 };
|
|
|
18
|
|
|
19 struct 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
|
|
|
34 typedef struct rtx_def *rtx;
|
|
|
35
|
|
|
36 enum 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
|
|
|
46 enum 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
|
|
|
51 extern const unsigned char mode_size[(int) MAX_MACHINE_MODE];
|
|
|
52 extern const enum mode_class mode_class[(int) MAX_MACHINE_MODE];
|
|
|
53
|
|
|
54 extern int target_flags;
|
|
|
55
|
|
|
56 static void
|
|
|
57 copy_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 }
|
