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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-dom2 -w" } */
struct rtx_def;
typedef struct rtx_def *rtx;
struct reload
{
rtx in;
rtx reg_rtx;
};
extern struct reload rld[(2 * 30 * (2 + 1))];
static rtx find_dummy_reload (rtx);
extern int frob ();
extern int arf ();
int
push_reload (rtx in, rtx out
)
{
int i;
if (out != 0 && in != out)
{
rld[i].reg_rtx = find_dummy_reload (out);
if (rld[i].reg_rtx == out)
rld[i].in = out;
}
}
rtx
find_dummy_reload (rtx real_out)
{
unsigned int nwords = frob ();
unsigned int regno = frob ();
unsigned int i;
for (i = 0; i < nwords; i++)
if (arf ())
break;
if (i == nwords)
return real_out;
return 0;
}
/* In the case where the call to find_dummy_reload returns 0,
the final test in push_reload will never be true and it will
be eliminated. */
/* { dg-final { scan-tree-dump-not "out_\[^\n\r]+ == 0" "dom2"} } */
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