329 lines
7.5 KiB
C
329 lines
7.5 KiB
C
#include "mcg.h"
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static int hop_count = 1;
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static struct hop* current_hop;
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static char* buffer = NULL;
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static int bufferlen = 0;
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static int buffersize = 0;
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static const struct burm_emitter_data emitter_data;
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struct hop* new_hop(struct basicblock* bb, struct ir* ir)
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{
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struct hop* hop = calloc(1, sizeof *hop);
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hop->id = hop_count++;
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hop->bb = bb;
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hop->ir = ir;
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return hop;
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}
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static struct insel* new_insel(enum insel_type type)
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{
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struct insel* insel = calloc(1, sizeof(*insel));
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insel->type = type;
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return insel;
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}
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void hop_add_string_insel(struct hop* hop, const char* string)
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{
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struct insel* insel = new_insel(INSEL_STRING);
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insel->u.string = string;
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array_append(&hop->insels, insel);
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}
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void hop_add_hreg_insel(struct hop* hop, struct hreg* hreg, int index)
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{
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struct insel* insel = new_insel(INSEL_HREG);
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insel->u.hreg = hreg;
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insel->index = index;
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array_append(&hop->insels, insel);
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}
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void hop_add_vreg_insel(struct hop* hop, struct vreg* vreg, int index)
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{
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struct insel* insel = new_insel(INSEL_VREG);
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insel->u.vreg = vreg;
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insel->index = index;
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array_append(&hop->insels, insel);
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}
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void hop_add_value_insel(struct hop* hop, struct ir* ir)
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{
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struct insel* insel = new_insel(INSEL_VALUE);
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insel->u.value = ir;
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array_append(&hop->insels, insel);
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}
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void hop_add_st_offset_insel(struct hop* hop, struct hreg* hreg)
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{
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struct insel* insel = new_insel(INSEL_ST_OFFSET);
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insel->u.hreg = hreg;
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array_append(&hop->insels, insel);
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}
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void hop_add_ab_offset_insel(struct hop* hop, int offset)
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{
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struct insel* insel = new_insel(INSEL_AB_OFFSET);
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insel->u.offset = offset;
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array_append(&hop->insels, insel);
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}
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void hop_add_lb_offset_insel(struct hop* hop, int offset)
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{
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struct insel* insel = new_insel(INSEL_LB_OFFSET);
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insel->u.offset = offset;
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array_append(&hop->insels, insel);
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}
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void hop_add_eoi_insel(struct hop* hop)
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{
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struct insel* insel = new_insel(INSEL_EOI);
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array_append(&hop->insels, insel);
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}
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void hop_add_insel(struct hop* hop, const char* fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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while (*fmt)
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{
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if (*fmt == '%')
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{
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int index = 0;
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fmt += 2;
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again:
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switch (fmt[-1])
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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index = fmt[-1] - '0';
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fmt++;
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goto again;
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case 'd':
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hop_add_string_insel(hop, aprintf("%d", va_arg(ap, int)));
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break;
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case 's':
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hop_add_string_insel(hop, va_arg(ap, const char*));
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break;
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case 'S':
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hop_add_st_offset_insel(hop, va_arg(ap, struct hreg*));
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break;
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case 'A':
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hop_add_ab_offset_insel(hop, va_arg(ap, int));
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break;
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case 'L':
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hop_add_lb_offset_insel(hop, va_arg(ap, int));
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break;
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case 'H':
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hop_add_hreg_insel(hop, va_arg(ap, struct hreg*), index);
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break;
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case 'V':
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hop_add_vreg_insel(hop, va_arg(ap, struct vreg*), index);
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break;
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}
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}
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else
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{
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const char* end = strchr(fmt, '%');
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const char* s;
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if (end)
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{
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int len = end - fmt;
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s = strndup(fmt, len);
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fmt = end;
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}
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else
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{
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s = fmt;
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fmt += strlen(fmt);
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}
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hop_add_string_insel(hop, s);
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}
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}
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hop_add_eoi_insel(hop);
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va_end(ap);
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}
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static void print_header(char k, struct hop* hop)
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{
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int i;
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tracef(k, "%c: %d", k, hop->id);
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if (hop->ir)
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tracef(k, " from $%d", hop->ir->id);
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tracef(k, ":");
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for (i=0; i<hop->ins.count; i++)
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tracef(k, " r%%%d", hop->ins.item[i]->id);
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for (i=0; i<hop->throughs.count; i++)
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tracef(k, " =%%%d", hop->throughs.item[i]->id);
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for (i=0; i<hop->outs.count; i++)
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tracef(k, " w%%%d", hop->outs.item[i]->id);
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tracef(k, " ");
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}
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static char* appendf(const char* fmt, ...)
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{
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int n;
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char* p;
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va_list ap;
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va_start(ap, fmt);
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n = bufferlen + vsnprintf(NULL, 0, fmt, ap) + 1;
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va_end(ap);
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if (n > buffersize)
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{
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buffersize *= 2;
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if (buffersize < n)
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buffersize = n*2;
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buffer = realloc(buffer, buffersize);
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}
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va_start(ap, fmt);
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vsprintf(buffer+bufferlen, fmt, ap);
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va_end(ap);
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bufferlen = n - 1; /* remember the \0 at the end */
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return p;
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}
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char* hop_render(struct hop* hop)
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{
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int i;
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appendf(""); /* ensure the buffer has been allocated */
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bufferlen = 0;
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buffer[0] = '\0';
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for (i=0; i<hop->insels.count; i++)
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{
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struct insel* insel = hop->insels.item[i];
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switch (insel->type)
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{
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case INSEL_EOI:
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appendf("\n");
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break;
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case INSEL_HREG:
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{
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struct hreg* hreg = insel->u.hreg;
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if (hreg->brd)
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appendf("%s", hreg->brd->names[insel->index]);
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else
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appendf("%s.%d", hreg->id, insel->index);
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break;
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}
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case INSEL_VREG:
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{
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struct vreg* vreg = insel->u.vreg;
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struct hreg* hreg = pmap_findright(&hop->regsin, vreg);
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if (!hreg)
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hreg = pmap_findright(&hop->regsout, vreg);
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if (hreg)
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appendf("%s", hreg->brd->names[insel->index]);
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else
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appendf("%%%d.%d", vreg->id, insel->index);
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break;
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}
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case INSEL_STRING:
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appendf("%s", insel->u.string);
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break;
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case INSEL_ST_OFFSET:
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appendf("%d", current_proc->fp_to_sb + insel->u.hreg->offset);
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break;
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case INSEL_AB_OFFSET:
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appendf("%d", current_proc->fp_to_ab + insel->u.offset);
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break;
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case INSEL_LB_OFFSET:
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appendf("%d", current_proc->fp_to_lb + insel->u.offset);
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break;
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case INSEL_VALUE:
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{
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struct ir* ir = insel->u.value;
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switch (ir->opcode)
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{
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case IR_BLOCK:
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appendf("%s", platform_label(ir->u.bvalue->name));
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break;
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case IR_LABEL:
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appendf("%s", platform_label(ir->u.lvalue));
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break;
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case IR_LOCAL:
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if (ir->u.ivalue >= 0)
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appendf("%d", current_proc->fp_to_ab + ir->u.ivalue);
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else
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appendf("%d", current_proc->fp_to_lb + ir->u.ivalue);
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break;
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case IR_CONST:
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appendf("%d", ir->u.ivalue);
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break;
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default:
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assert(false);
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}
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break;
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}
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default:
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assert(false);
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}
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}
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return buffer;
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}
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void hop_print(char k, struct hop* hop)
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{
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int i;
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bool soi = false;
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char* p;
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hop_render(hop);
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p = strtok(buffer, "\n");
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print_header(k, hop);
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while (p)
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{
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tracef(k, "%s", p);
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p = strtok(NULL, "\n");
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if (p)
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{
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tracef(k, "\n");
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print_header(k, hop);
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}
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}
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tracef(k, "\n");
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}
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/* vim: set sw=4 ts=4 expandtab : */
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