diff options
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index 078e8a3..08a962d 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -1269,7 +1269,9 @@ find_interesting_uses_address (struct ivopts_data *data, tree stmt, tree *op_p) || zero_p (step)) goto fail; - if (TREE_CODE (base) == INDIRECT_REF) + if (TREE_CODE (base) == INDIRECT_REF + || TREE_CODE (base) == ALIGN_INDIRECT_REF + || TREE_CODE (base) == MISALIGNED_INDIRECT_REF) base = TREE_OPERAND (base, 0); else base = build_addr (base); @@ -1699,7 +1701,9 @@ add_address_candidates (struct ivopts_data *data, if (base != TREE_OPERAND (iv->base, 0)) { - if (TREE_CODE (base) == INDIRECT_REF) + if (TREE_CODE (base) == INDIRECT_REF + || TREE_CODE (base) == ALIGN_INDIRECT_REF + || TREE_CODE (base) == MISALIGNED_INDIRECT_REF) base = TREE_OPERAND (base, 0); else base = build_addr (base); @@ -3826,13 +3830,16 @@ unshare_and_remove_ssa_names (tree ref) static void rewrite_address_base (block_stmt_iterator *bsi, tree *op, tree with) { - tree var = get_base_address (*op), new_var, new_name, copy, name; + tree bvar, var, new_var, new_name, copy, name; tree orig; + var = bvar = get_base_address (*op); + if (!var || TREE_CODE (with) != SSA_NAME) goto do_rewrite; - - if (TREE_CODE (var) == INDIRECT_REF) + if (TREE_CODE (var) == INDIRECT_REF + || TREE_CODE (var) == ALIGN_INDIRECT_REF + || TREE_CODE (var) == MISALIGNED_INDIRECT_REF) var = TREE_OPERAND (var, 0); if (TREE_CODE (var) == SSA_NAME) { @@ -3869,12 +3876,20 @@ rewrite_address_base (block_stmt_iterator *bsi, tree *op, tree with) do_rewrite: orig = NULL_TREE; - if (TREE_CODE (*op) == INDIRECT_REF) + if (TREE_CODE (*op) == INDIRECT_REF + || TREE_CODE (*op) == ALIGN_INDIRECT_REF + || TREE_CODE (*op) == MISALIGNED_INDIRECT_REF) orig = REF_ORIGINAL (*op); if (!orig) orig = unshare_and_remove_ssa_names (*op); - *op = build1 (INDIRECT_REF, TREE_TYPE (*op), with); + if (TREE_CODE (bvar) == ALIGN_INDIRECT_REF) + *op = build1 (ALIGN_INDIRECT_REF, TREE_TYPE (*op), with); + else if (TREE_CODE (bvar) == MISALIGNED_INDIRECT_REF) + *op = build2 (MISALIGNED_INDIRECT_REF, TREE_TYPE (*op), with, TREE_OPERAND (*op, 1)); + else + *op = build1 (INDIRECT_REF, TREE_TYPE (*op), with); + /* Record the original reference, for purposes of alias analysis. */ REF_ORIGINAL (*op) = orig; } |