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Outline lst_niter_for_loop.

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2010-09-09  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-blocking.c (pbb_strip_mine_profitable_p): Renamed
	lst_strip_mine_profitable_p.  Call lst_niter_for_loop.
	* graphite-poly.h (lst_niter_for_loop): New.

From-SVN: r164800
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Sebastian Pop 2010-09-30 21:20:14 +00:00 committed by Sebastian Pop
parent 6eb412ef35
commit 22280f632d
4 changed files with 33 additions and 9 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2010-09-30 Sebastian Pop <sebastian.pop@amd.com>
* graphite-blocking.c (pbb_strip_mine_profitable_p): Renamed
lst_strip_mine_profitable_p. Call lst_niter_for_loop.
* graphite-poly.h (lst_niter_for_loop): New.
2010-09-30 Sebastian Pop <sebastian.pop@amd.com>
* graphite-poly.c (apply_poly_transforms): Do not abort when the

6
gcc/ChangeLog.graphite
View File

@ -1,3 +1,9 @@
2010-09-09 Sebastian Pop <sebastian.pop@amd.com>
* graphite-blocking.c (pbb_strip_mine_profitable_p): Renamed
lst_strip_mine_profitable_p. Call lst_niter_for_loop.
* graphite-poly.h (lst_niter_for_loop): New.
2010-09-09 Sebastian Pop <sebastian.pop@amd.com>
* graphite-poly.c (apply_poly_transforms): Do not abort when the

17
gcc/graphite-blocking.c
View File

@ -172,25 +172,25 @@ pbb_strip_mine_time_depth (poly_bb_p pbb, int time_depth, int stride)
return true;
}
/* Returns true when strip mining with STRIDE of the loop around PBB
at DEPTH is profitable. */
/* Returns true when strip mining with STRIDE of the loop LST is
profitable. */
static bool
pbb_strip_mine_profitable_p (poly_bb_p pbb,
graphite_dim_t depth,
int stride)
lst_strip_mine_profitable_p (lst_p lst, int stride)
{
mpz_t niter, strip_stride;
bool res;
gcc_assert (LST_LOOP_P (lst));
mpz_init (strip_stride);
mpz_init (niter);
mpz_set_si (strip_stride, stride);
pbb_number_of_iterations_at_time (pbb, psct_dynamic_dim (pbb, depth), niter);
lst_niter_for_loop (lst, niter);
res = (mpz_cmp (niter, strip_stride) > 0);
mpz_clear (strip_stride);
mpz_clear (niter);
return res;
}
@ -244,8 +244,7 @@ lst_do_strip_mine (lst_p lst)
depth = lst_depth (lst);
if (depth >= 0
&& pbb_strip_mine_profitable_p (LST_PBB (lst_find_first_pbb (lst)),
depth, stride))
&& lst_strip_mine_profitable_p (lst, stride))
{
res |= lst_do_strip_mine_loop (lst, lst_depth (lst));
lst_add_loop_under_loop (lst);

13
gcc/graphite-poly.h
View File

@ -1062,6 +1062,19 @@ lst_remove_from_sequence (lst_p lst)
LST_LOOP_FATHER (lst) = NULL;
}
/* Sets NITER to the upper bound approximation of the number of
iterations of loop LST. */
static inline void
lst_niter_for_loop (lst_p lst, mpz_t niter)
{
int depth = lst_depth (lst);
poly_bb_p pbb = LST_PBB (lst_find_first_pbb (lst));
gcc_assert (LST_LOOP_P (lst));
pbb_number_of_iterations_at_time (pbb, psct_dynamic_dim (pbb, depth), niter);
}
/* Updates the scattering of PBB to be at the DEWEY number in the loop
at depth LEVEL. */