Viewing file:  ipcp-2.c (1.78 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-options "-O3 -fipa-cp -fipa-cp-clone -fdump-ipa-cp -fno-early-inlining --param ipa-cp-eval-threshold=200" } */
/* { dg-add-options bind_pic_locally } */
extern int get_stuff (int);
extern void do_stuff (int);
extern void do_stuff2 (int);
extern void do_other_stuff (void);
extern int get_element (int, int, int);
extern int adjust (int, int, int, int);
extern int count;
int
foo (int s, int p)
{
int c, r = 0;
for (c = 0 ; c < count; c++)
{
r += get_stuff (s);
/* The following is just something big that can go away. */
if (p != 0)
{
int a[64][64];
int i, j, k;
for (i = 0; i < 64; i++)
for (j = 0; j < 64; j++)
a[i][j] = get_element (p + c, i, j);
for (k = 0; k < 4; k++)
{
r = r / 2;
for (i = 1; i < 63; i++)
for (j = 62; j > 0; j--)
a[i][j] += adjust (a[i-1][j], a[i][j-1],
a[i+1][j], a[i][j+1]);
for (i = 4; i < 64; i += 4)
for (j = 4; j < 64; j += 4)
r += a[i][j] / 4;
}
}
}
return r;
}
int
bar (int p, int q)
{
if (q > 0)
do_stuff (q);
else
do_stuff (-q);
if (q % 2)
do_stuff2 (2 * q);
else
do_stuff2 (2 * (q + 1));
return foo (4, p);
}
int
bah (int p, int q)
{
int i, j;
while (q < -20)
q += get_stuff (-q);
for (i = 0; i < 36; i++)
for (j = 0; j < 36; j++)
do_stuff (get_stuff (q * i + 2));
bar (p, q);
}
int
top1 (int q)
{
do_other_stuff ();
return bah (0, q);
}
int
top2 (int q)
{
do_stuff (200);
do_other_stuff ();
return bah (16, q);
}
/* { dg-final { scan-ipa-dump-times "Creating a specialized node of foo" 1 "cp" } } */
/* { dg-final { scan-ipa-dump-times "replacing param .. p with const 0" 3 "cp" } } */
/* { dg-final { scan-ipa-dump "replacing param .0 s with const 4" "cp" } } */
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