diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/tree-ssa-dse.c | 5 |
2 files changed, 9 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8273970..d4db335 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2012-04-05 Richard Guenther <rguenther@suse.de> + * tree-ssa-dse.c (dse_optimize_stmt): Remember the stmt + basic-block before removing it. + +2012-04-05 Richard Guenther <rguenther@suse.de> + * tree-ssanames.c (release_dead_ssa_names): Compact the SSA version namespace as we release the freelist. diff --git a/gcc/tree-ssa-dse.c b/gcc/tree-ssa-dse.c index 93ba425..1fdb26c 100644 --- a/gcc/tree-ssa-dse.c +++ b/gcc/tree-ssa-dse.c @@ -232,6 +232,8 @@ dse_optimize_stmt (gimple_stmt_iterator gsi) gimple_get_lhs (use_stmt), 0))) || stmt_kills_ref_p (use_stmt, gimple_assign_lhs (stmt))) { + basic_block bb; + /* If use_stmt is or might be a nop assignment, e.g. for struct { ... } S a, b, *p; ... b = a; b = b; @@ -258,8 +260,9 @@ dse_optimize_stmt (gimple_stmt_iterator gsi) unlink_stmt_vdef (stmt); /* Remove the dead store. */ + bb = gimple_bb (stmt); if (gsi_remove (&gsi, true)) - bitmap_set_bit (need_eh_cleanup, gimple_bb (stmt)->index); + bitmap_set_bit (need_eh_cleanup, bb->index); /* And release any SSA_NAMEs set in this statement back to the SSA_NAME manager. */ |