diff options
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/gcc/function.c b/gcc/function.c index 05241a3..751d2de3 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -2807,8 +2807,10 @@ assign_parm_adjust_stack_rtl (struct assign_parm_data_one *data) stack slot, if we need one. */ if (stack_parm && ((GET_MODE_ALIGNMENT (data->nominal_mode) > MEM_ALIGN (stack_parm) - && targetm.slow_unaligned_access (data->nominal_mode, - MEM_ALIGN (stack_parm))) + && ((optab_handler (movmisalign_optab, data->nominal_mode) + != CODE_FOR_nothing) + || targetm.slow_unaligned_access (data->nominal_mode, + MEM_ALIGN (stack_parm)))) || (data->nominal_type && TYPE_ALIGN (data->nominal_type) > MEM_ALIGN (stack_parm) && MEM_ALIGN (stack_parm) < PREFERRED_STACK_BOUNDARY))) @@ -3461,11 +3463,20 @@ assign_parm_setup_stack (struct assign_parm_data_all *all, tree parm, int align = STACK_SLOT_ALIGNMENT (data->arg.type, GET_MODE (data->entry_parm), TYPE_ALIGN (data->arg.type)); + if (align < (int)GET_MODE_ALIGNMENT (GET_MODE (data->entry_parm)) + && ((optab_handler (movmisalign_optab, + GET_MODE (data->entry_parm)) + != CODE_FOR_nothing) + || targetm.slow_unaligned_access (GET_MODE (data->entry_parm), + align))) + align = GET_MODE_ALIGNMENT (GET_MODE (data->entry_parm)); data->stack_parm = assign_stack_local (GET_MODE (data->entry_parm), GET_MODE_SIZE (GET_MODE (data->entry_parm)), align); + align = MEM_ALIGN (data->stack_parm); set_mem_attributes (data->stack_parm, parm, 1); + set_mem_align (data->stack_parm, align); } dest = validize_mem (copy_rtx (data->stack_parm)); |