diff options
Diffstat (limited to 'gcc-4.9/gcc/sched-deps.c')
| -rw-r--r-- | gcc-4.9/gcc/sched-deps.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/gcc-4.9/gcc/sched-deps.c b/gcc-4.9/gcc/sched-deps.c index 1d4700733..dc8718745 100644 --- a/gcc-4.9/gcc/sched-deps.c +++ b/gcc-4.9/gcc/sched-deps.c @@ -1233,6 +1233,13 @@ add_or_update_dep_1 (dep_t new_dep, bool resolved_p, switch (ask_dependency_caches (new_dep)) { case DEP_PRESENT: + dep_t present_dep; + sd_iterator_def sd_it; + + present_dep = sd_find_dep_between_no_cache (DEP_PRO (new_dep), + DEP_CON (new_dep), + resolved_p, &sd_it); + DEP_MULTIPLE (present_dep) = 1; return DEP_PRESENT; case DEP_CHANGED: @@ -4747,24 +4754,6 @@ find_inc (struct mem_inc_info *mii, bool backwards) goto next; } } - - /* The inc instruction could have clobbers, make sure those - registers are not used in mem insn. */ - for (def_rec = DF_INSN_DEFS (mii->inc_insn); *def_rec; def_rec++) - if (!reg_overlap_mentioned_p (DF_REF_REG (*def_rec), mii->mem_reg0)) - { - df_ref *use_rec; - for (use_rec = DF_INSN_USES (mii->mem_insn); *use_rec; use_rec++) - if (reg_overlap_mentioned_p (DF_REF_REG (*def_rec), - DF_REF_REG (*use_rec))) - { - if (sched_verbose >= 5) - fprintf (sched_dump, - "inc clobber used in store failure.\n"); - goto next; - } - } - newaddr = mii->inc_input; if (mii->mem_index != NULL_RTX) newaddr = gen_rtx_PLUS (GET_MODE (newaddr), newaddr, |