diff options
Diffstat (limited to 'gcc/tree-ssa-address.c')
| -rw-r--r-- | gcc/tree-ssa-address.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/gcc/tree-ssa-address.c b/gcc/tree-ssa-address.c index cf131578d2d..e11da3eb869 100644 --- a/gcc/tree-ssa-address.c +++ b/gcc/tree-ssa-address.c @@ -863,26 +863,26 @@ copy_ref_info (tree new_ref, tree old_ref) && SSA_NAME_PTR_INFO (TREE_OPERAND (base, 0))) { struct ptr_info_def *new_pi; + unsigned int align, misalign; + 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 + if (get_ptr_info_alignment (new_pi, &align, &misalign) + && 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))))) + < 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); + unsigned int inc = double_int_sub (mem_ref_offset (old_ref), + mem_ref_offset (new_ref)).low; + adjust_ptr_info_misalignment (new_pi, inc); } else - { - new_pi->align = 1; - new_pi->misalign = 0; - } + mark_ptr_info_alignment_unknown (new_pi); } else if (TREE_CODE (base) == VAR_DECL || TREE_CODE (base) == PARM_DECL |