diff options
| author | Sebastian Pop <sebastian.pop@amd.com> | 2009-11-25 05:30:35 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2009-11-25 05:30:35 +0000 |
| commit | e3bde9f4bc8a008a07e1caba789562d0abd627d6 (patch) | |
| tree | 022a1de63537215778d0a70548c761ac2d1a3dda /gcc/graphite-blocking.c | |
| parent | 27e432be3c4e56b68da4d5a6d1e1f7277ce77b65 (diff) | |
| download | gcc-e3bde9f4bc8a008a07e1caba789562d0abd627d6.zip gcc-e3bde9f4bc8a008a07e1caba789562d0abd627d6.tar.gz gcc-e3bde9f4bc8a008a07e1caba789562d0abd627d6.tar.bz2 | |
graphite-blocking.c (pbb_strip_mine_profitable_p): The parameter depth is the loop nesting depth in the LST.
2009-11-18 Sebastian Pop <sebastian.pop@amd.com>
* graphite-blocking.c (pbb_strip_mine_profitable_p): The parameter
depth is the loop nesting depth in the LST. Call psct_dynamic_dim
to transform depth into the time_depth before calling
pbb_number_of_iterations_at_time.
(lst_do_strip_mine): Use a scalar variable instead of recomputing
lst_depth.
From-SVN: r154637
Diffstat (limited to 'gcc/graphite-blocking.c')
| -rw-r--r-- | gcc/graphite-blocking.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/gcc/graphite-blocking.c b/gcc/graphite-blocking.c index e44ad8a..4c8a700 100644 --- a/gcc/graphite-blocking.c +++ b/gcc/graphite-blocking.c @@ -174,11 +174,11 @@ pbb_strip_mine_time_depth (poly_bb_p pbb, int time_depth, int stride) } /* Returns true when strip mining with STRIDE of the loop around PBB - at scattering time TIME_DEPTH is profitable. */ + at DEPTH is profitable. */ static bool pbb_strip_mine_profitable_p (poly_bb_p pbb, - graphite_dim_t time_depth, + graphite_dim_t depth, int stride) { Value niter, strip_stride; @@ -187,7 +187,7 @@ pbb_strip_mine_profitable_p (poly_bb_p pbb, value_init (strip_stride); value_init (niter); value_set_si (strip_stride, stride); - pbb_number_of_iterations_at_time (pbb, time_depth, niter); + pbb_number_of_iterations_at_time (pbb, psct_dynamic_dim (pbb, depth), niter); res = value_gt (niter, strip_stride); value_clear (strip_stride); value_clear (niter); @@ -234,6 +234,7 @@ lst_do_strip_mine (lst_p lst) lst_p l; bool res = false; int stride = PARAM_VALUE (PARAM_LOOP_BLOCK_TILE_SIZE); + int depth; if (!lst || !LST_LOOP_P (lst)) @@ -242,9 +243,10 @@ lst_do_strip_mine (lst_p lst) for (i = 0; VEC_iterate (lst_p, LST_SEQ (lst), i, l); i++) res |= lst_do_strip_mine (l); - if (lst_depth (lst) >= 0 + depth = lst_depth (lst); + if (depth >= 0 && pbb_strip_mine_profitable_p (LST_PBB (lst_find_first_pbb (lst)), - lst_depth (lst), stride)) + depth, stride)) { res |= lst_do_strip_mine_loop (lst, lst_depth (lst)); lst_add_loop_under_loop (lst); |