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| author | Jakub Jelinek <jakub@redhat.com> | 2014-09-01 13:15:41 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2014-09-01 13:15:41 +0200 |
| commit | a0107bd001ec4bc30b345a157561f27ca4419e0b (patch) | |
| tree | 96dc45f9cef7c0d66d949becf012197d38b0774f /gcc/sched-deps.c | |
| parent | e507a43338b75714233a271186baa4c68bf50e64 (diff) | |
| download | gcc-a0107bd001ec4bc30b345a157561f27ca4419e0b.zip gcc-a0107bd001ec4bc30b345a157561f27ca4419e0b.tar.gz gcc-a0107bd001ec4bc30b345a157561f27ca4419e0b.tar.bz2 | |
re PR target/62025 (Miscompilation of openssl sha512.c)
PR target/62025
* sched-deps.c (add_or_update_dep_1): If ask_dependency_caches
returned DEP_PRESENT, make sure to set DEP_MULTIPLE on present_dep.
(find_inc): Revert 2014-08-13 change.
From-SVN: r214786
Diffstat (limited to 'gcc/sched-deps.c')
| -rw-r--r-- | gcc/sched-deps.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c index e922a96..455ed19 100644 --- a/gcc/sched-deps.c +++ b/gcc/sched-deps.c @@ -1235,6 +1235,13 @@ 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: @@ -4765,23 +4772,6 @@ 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_EACH_INSN_DEF (def, mii->inc_insn) - if (!reg_overlap_mentioned_p (DF_REF_REG (def), mii->mem_reg0)) - { - df_ref use; - FOR_EACH_INSN_USE (use, mii->mem_insn) - if (reg_overlap_mentioned_p (DF_REF_REG (def), - DF_REF_REG (use))) - { - 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, |