diff options
| author | scox <scox@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-01-04 17:19:41 +0000 |
|---|---|---|
| committer | scox <scox@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-01-04 17:19:41 +0000 |
| commit | b310b60a66b772cc8a64697ef9426edd502c36d2 (patch) | |
| tree | d84560fa135a4fbe6eb26708b345e558c43ee5ab | |
| parent | ef2c4a29c2658395106b6bae4970feb7da338132 (diff) | |
| download | ppe42-gcc-b310b60a66b772cc8a64697ef9426edd502c36d2.tar.gz ppe42-gcc-b310b60a66b772cc8a64697ef9426edd502c36d2.zip | |
2000-01-04 Stan Cox <scox@cygnus.com>
* haifa-sched.c (build_control_flow): Change unreachable simple
loop test to check if current block has only one predecessor.
(find_rgns): Initialize degree. Use dest as degree index, not src.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31208 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/haifa-sched.c | 8 |
2 files changed, 11 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fa733454d43..6d630d441b4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2000-01-04 Stan Cox <scox@cygnus.com> + + * haifa-sched.c (build_control_flow): Change unreachable simple + loop test to check if current block has only one predecessor. + (find_rgns): Initialize degree. Use dest as degree index, not src. + 2000-01-04 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> * builtins.c (expand_builtin_strlen): Initialize variable `icode'. diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index e3eedbb6793..f9fb50464f9 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -1061,7 +1061,7 @@ build_control_flow (edge_list) basic_block b = BASIC_BLOCK (i); if (b->pred == NULL - || (b->pred->dest == b + || (b->pred->src == b && b->pred->pred_next == NULL)) unreachable = 1; } @@ -1531,12 +1531,14 @@ find_rgns (edge_list, dom) to hold degree counts. */ degree = dfs_nr; + for (i = 0; i < n_basic_blocks; i++) + degree[i] = 0; for (i = 0; i < num_edges; i++) { edge e = INDEX_EDGE (edge_list, i); - if (e->src != ENTRY_BLOCK_PTR) - degree[e->src->index]++; + if (e->dest != EXIT_BLOCK_PTR) + degree[e->dest->index]++; } /* Do not perform region scheduling if there are any unreachable |
