diff options
Diffstat (limited to 'gcc/tree-ssa-loop-im.c')
| -rw-r--r-- | gcc/tree-ssa-loop-im.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/gcc/tree-ssa-loop-im.c b/gcc/tree-ssa-loop-im.c index 4f09f8a..338be75 100644 --- a/gcc/tree-ssa-loop-im.c +++ b/gcc/tree-ssa-loop-im.c @@ -134,10 +134,6 @@ typedef struct mem_ref If it is only loaded, then it is independent on all stores in the loop. */ bitmap dep_loop; /* The complement of INDEP_LOOP. */ - - bitmap indep_ref; /* The set of memory references on that - this reference is independent. */ - bitmap dep_ref; /* The complement of INDEP_REF. */ } *mem_ref_p; /* We use two bits per loop in the ref->{in,}dep_loop bitmaps, the first @@ -1482,8 +1478,6 @@ mem_ref_alloc (tree mem, unsigned hash, unsigned id) ref->stored = BITMAP_ALLOC (&lim_bitmap_obstack); ref->indep_loop = BITMAP_ALLOC (&lim_bitmap_obstack); ref->dep_loop = BITMAP_ALLOC (&lim_bitmap_obstack); - ref->indep_ref = BITMAP_ALLOC (&lim_bitmap_obstack); - ref->dep_ref = BITMAP_ALLOC (&lim_bitmap_obstack); ref->accesses_in_loop.create (0); return ref; @@ -2228,33 +2222,18 @@ refs_independent_p (mem_ref_p ref1, mem_ref_p ref2) if (ref1 == ref2) return true; - /* Reference dependence in a loop is symmetric. */ - if (ref1->id > ref2->id) - { - mem_ref_p tem = ref1; - ref1 = ref2; - ref2 = tem; - } - - if (bitmap_bit_p (ref1->indep_ref, ref2->id)) - return true; - if (bitmap_bit_p (ref1->dep_ref, ref2->id)) - return false; - if (dump_file && (dump_flags & TDF_DETAILS)) fprintf (dump_file, "Querying dependency of refs %u and %u: ", ref1->id, ref2->id); if (mem_refs_may_alias_p (ref1, ref2, &memory_accesses.ttae_cache)) { - bitmap_set_bit (ref1->dep_ref, ref2->id); if (dump_file && (dump_flags & TDF_DETAILS)) fprintf (dump_file, "dependent.\n"); return false; } else { - bitmap_set_bit (ref1->indep_ref, ref2->id); if (dump_file && (dump_flags & TDF_DETAILS)) fprintf (dump_file, "independent.\n"); return true; |