diff options
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index 67d0464..15a2dd7 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -6278,64 +6278,6 @@ rewrite_use_nonlinear_expr (struct ivopts_data *data, } } -/* Copies the reference information from OLD_REF to NEW_REF. */ - -static void -copy_ref_info (tree new_ref, tree old_ref) -{ - tree new_ptr_base = NULL_TREE; - - TREE_SIDE_EFFECTS (new_ref) = TREE_SIDE_EFFECTS (old_ref); - TREE_THIS_VOLATILE (new_ref) = TREE_THIS_VOLATILE (old_ref); - - new_ptr_base = TREE_OPERAND (new_ref, 0); - - /* We can transfer points-to information from an old pointer - or decl base to the new one. */ - if (new_ptr_base - && TREE_CODE (new_ptr_base) == SSA_NAME - && !SSA_NAME_PTR_INFO (new_ptr_base)) - { - tree base = get_base_address (old_ref); - if (!base) - ; - else if ((TREE_CODE (base) == MEM_REF - || TREE_CODE (base) == TARGET_MEM_REF) - && TREE_CODE (TREE_OPERAND (base, 0)) == SSA_NAME - && SSA_NAME_PTR_INFO (TREE_OPERAND (base, 0))) - { - struct ptr_info_def *new_pi; - duplicate_ssa_name_ptr_info - (new_ptr_base, SSA_NAME_PTR_INFO (TREE_OPERAND (base, 0))); - new_pi = SSA_NAME_PTR_INFO (new_ptr_base); - /* We have to be careful about transfering alignment information. */ - if (TREE_CODE (old_ref) == MEM_REF - && !(TREE_CODE (new_ref) == TARGET_MEM_REF - && (TMR_INDEX2 (new_ref) - || (TMR_STEP (new_ref) - && (TREE_INT_CST_LOW (TMR_STEP (new_ref)) - < new_pi->align))))) - { - new_pi->misalign += double_int_sub (mem_ref_offset (old_ref), - mem_ref_offset (new_ref)).low; - new_pi->misalign &= (new_pi->align - 1); - } - else - { - new_pi->align = 1; - new_pi->misalign = 0; - } - } - else if (TREE_CODE (base) == VAR_DECL - || TREE_CODE (base) == PARM_DECL - || TREE_CODE (base) == RESULT_DECL) - { - struct ptr_info_def *pi = get_ptr_info (new_ptr_base); - pt_solution_set_var (&pi->pt, base); - } - } -} - /* Performs a peephole optimization to reorder the iv update statement with a mem ref to enable instruction combining in later phases. The mem ref uses the iv value before the update, so the reordering transformation requires |