diff options
Diffstat (limited to 'toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106836.patch')
| -rw-r--r-- | toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106836.patch | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106836.patch b/toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106836.patch new file mode 100644 index 0000000000..95b9ea9b83 --- /dev/null +++ b/toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106836.patch @@ -0,0 +1,61 @@ +2011-11-04 Revital Eres <revital.eres@linaro.org> + + Backport from mainline -r180673: + + gcc/ + * modulo-sched.c (generate_prolog_epilog): Mark prolog + and epilog as BB_DISABLE_SCHEDULE. + (mark_loop_unsched): New function. + (sms_schedule): Call it. + +=== modified file 'gcc/modulo-sched.c' +--- old/gcc/modulo-sched.c 2011-10-10 14:35:32 +0000 ++++ new/gcc/modulo-sched.c 2011-10-30 05:31:00 +0000 +@@ -1173,6 +1173,8 @@ + /* Put the prolog on the entry edge. */ + e = loop_preheader_edge (loop); + split_edge_and_insert (e, get_insns ()); ++ if (!flag_resched_modulo_sched) ++ e->dest->flags |= BB_DISABLE_SCHEDULE; + + end_sequence (); + +@@ -1186,9 +1188,24 @@ + gcc_assert (single_exit (loop)); + e = single_exit (loop); + split_edge_and_insert (e, get_insns ()); ++ if (!flag_resched_modulo_sched) ++ e->dest->flags |= BB_DISABLE_SCHEDULE; ++ + end_sequence (); + } + ++/* Mark LOOP as software pipelined so the later ++ scheduling passes don't touch it. */ ++static void ++mark_loop_unsched (struct loop *loop) ++{ ++ unsigned i; ++ basic_block *bbs = get_loop_body (loop); ++ ++ for (i = 0; i < loop->num_nodes; i++) ++ bbs[i]->flags |= BB_DISABLE_SCHEDULE; ++} ++ + /* Return true if all the BBs of the loop are empty except the + loop header. */ + static bool +@@ -1714,9 +1731,10 @@ + permute_partial_schedule (ps, g->closing_branch->first_note); + + /* Mark this loop as software pipelined so the later +- scheduling passes doesn't touch it. */ ++ scheduling passes don't touch it. */ + if (! flag_resched_modulo_sched) +- g->bb->flags |= BB_DISABLE_SCHEDULE; ++ mark_loop_unsched (loop); ++ + /* The life-info is not valid any more. */ + df_set_bb_dirty (g->bb); + + |