diff options
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/lto-streamer-in.c | 7 | ||||
| -rw-r--r-- | gcc/lto-streamer-out.c | 6 |
3 files changed, 17 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d0aeef43b45..2f462c41f60 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,12 @@ 2016-04-22 Richard Biener <rguenther@suse.de> + * lto-streamer-in.c (input_ssa_names): Do not allocate + GIMPLE_NOP for all SSA names. + * lto-streamer-out.c (output_ssa_names): Do not output + SSA names that should have been released. + +2016-04-22 Richard Biener <rguenther@suse.de> + PR tree-optimization/70740 * tree-ssa-phiprop.c (propagate_with_phi): Handle inserted VDEF. diff --git a/gcc/lto-streamer-in.c b/gcc/lto-streamer-in.c index dd48777effa..1970d45ee86 100644 --- a/gcc/lto-streamer-in.c +++ b/gcc/lto-streamer-in.c @@ -881,10 +881,13 @@ input_ssa_names (struct lto_input_block *ib, struct data_in *data_in, is_default_def = (streamer_read_uchar (ib) != 0); name = stream_read_tree (ib, data_in); - ssa_name = make_ssa_name_fn (fn, name, gimple_build_nop ()); + ssa_name = make_ssa_name_fn (fn, name, NULL); if (is_default_def) - set_ssa_default_def (cfun, SSA_NAME_VAR (ssa_name), ssa_name); + { + set_ssa_default_def (cfun, SSA_NAME_VAR (ssa_name), ssa_name); + SSA_NAME_DEF_STMT (ssa_name) = gimple_build_nop (); + } i = streamer_read_uhwi (ib); } diff --git a/gcc/lto-streamer-out.c b/gcc/lto-streamer-out.c index 6703d4106de..35e58fd24cc 100644 --- a/gcc/lto-streamer-out.c +++ b/gcc/lto-streamer-out.c @@ -1816,7 +1816,11 @@ output_ssa_names (struct output_block *ob, struct function *fn) if (ptr == NULL_TREE || SSA_NAME_IN_FREE_LIST (ptr) - || virtual_operand_p (ptr)) + || virtual_operand_p (ptr) + /* Simply skip unreleased SSA names. */ + || (! SSA_NAME_IS_DEFAULT_DEF (ptr) + && (! SSA_NAME_DEF_STMT (ptr) + || ! gimple_bb (SSA_NAME_DEF_STMT (ptr))))) continue; streamer_write_uhwi (ob, i); |