Viewing file:  pr42388.c (1.26 KB) -rw-r--r--
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/* { dg-do compile { target powerpc*-*-* ia64-*-* i?86-*-* x86_64-*-* } } */
/* { dg-options "-O2 -fselective-scheduling -fmodulo-sched" } */
enum rtx_code
{
INSN, ADDR_VEC, ADDR_DIFF_VEC, CALL_INSN, CODE_LABEL, BARRIER, NOTE
};
typedef union rtunion_def
{
int rtint;
char *rtstr;
struct rtx_def *rtx;
struct rtvec_def *rtvec;
}
rtunion;
typedef struct rtx_def
{
unsigned short code;
rtunion fld[1];
}
*rtx;
typedef struct rtvec_def
{
unsigned num_elem;
rtunion elem[1];
}
*rtvec;
extern rtx emit_barrier (void);
extern rtx emit_note (char *);
static void
copy_loop_body (rtx *map)
{
int i;
rtx insn, copy;
rtx pat = copy->fld[3].rtx;
switch (insn->code)
{
case INSN:
if (insn->fld[7].rtx)
{
}
else if (pat->code == ADDR_VEC || pat->code == ADDR_DIFF_VEC)
{
int diff_vec_p = pat->code == ADDR_DIFF_VEC;
int len = pat->fld[diff_vec_p].rtvec->num_elem;
for (i = 0; i < len; i++)
pat->fld[diff_vec_p].rtvec->elem[i].rtx->fld[5].rtint++;
}
case CALL_INSN:
for (i = 0; i < 64; i++)
map[i] = 0;
case CODE_LABEL:
case BARRIER:
copy = emit_barrier ();
case NOTE:
copy = emit_note ("x");
}
}
void
unroll_loop (int insn_count, rtx *map)
{
if (insn_count > 50)
copy_loop_body (map);
}
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