c079e97492
inasmuch as it looks better before register allocation. Basic blocks now know their own successors and predecessors (after a certain point in the IR processing).
43 lines
738 B
C
43 lines
738 B
C
#include "mcg.h"
|
|
|
|
static void init_idf();
|
|
static struct idf* str2idf(char* tg, int cp);
|
|
|
|
#define IDF_TYPE struct basicblock*
|
|
#define IDF_NAME block
|
|
#include <idf_pkg.spec>
|
|
#include <idf_pkg.body>
|
|
|
|
static int next_id = 0;
|
|
|
|
void bb_init(void)
|
|
{
|
|
init_idf();
|
|
}
|
|
|
|
struct basicblock* bb_get(const char* name)
|
|
{
|
|
struct idf* p;
|
|
|
|
if (!name)
|
|
name = aprintf("___anon_bb_%d", next_id++);
|
|
p = str2idf((char*) name, 0);
|
|
if (!p->block)
|
|
{
|
|
p->block = calloc(1, sizeof(*p->block));
|
|
p->block->name = name;
|
|
}
|
|
return p->block;
|
|
}
|
|
|
|
void bb_alias(struct basicblock* block, const char* name)
|
|
{
|
|
struct idf* p = str2idf((char*) name, -1);
|
|
assert(p == NULL);
|
|
|
|
p = str2idf((char*) name, 0);
|
|
p->block = block;
|
|
}
|
|
|
|
/* vim: set sw=4 ts=4 expandtab : */
|