config/rs6000/rs6000.c

710 static void compute_save_world_info (rs6000_stack_t *info_ptr);
12909 compute_save_world_info (rs6000_stack_t *info_ptr)
12911   info_ptr->world_save_p = 1;
12912   info_ptr->world_save_p
12913     = (WORLD_SAVE_P (info_ptr)
12916        && info_ptr->first_fp_reg_save == FIRST_SAVED_FP_REGNO
12917        && info_ptr->first_gp_reg_save == FIRST_SAVED_GP_REGNO
12918        && info_ptr->first_altivec_reg_save == FIRST_SAVED_ALTIVEC_REGNO
12919        && info_ptr->cr_save_p);
12923   if (WORLD_SAVE_P (info_ptr))
12930 	    info_ptr->world_save_p = 0;
12935   if (WORLD_SAVE_P (info_ptr))
12940       info_ptr->vrsave_size  = 4;
12943       if (info_ptr->vrsave_mask == 0)
12944 	info_ptr->vrsave_mask = compute_vrsave_mask ();
12949       gcc_assert (info_ptr->first_fp_reg_save >= FIRST_SAVED_FP_REGNO
12950 		  && (info_ptr->first_altivec_reg_save
13068   rs6000_stack_t *info_ptr = &info;
13082       info_ptr->spe_64bit_regs_used = cfun->machine->insn_chain_scanned_p - 1;
13086   info_ptr->abi = DEFAULT_ABI;
13089   info_ptr->first_gp_reg_save = first_reg_to_save ();
13095       && info_ptr->first_gp_reg_save > RS6000_PIC_OFFSET_TABLE_REGNUM)
13096     info_ptr->gp_size = reg_size * (32 - RS6000_PIC_OFFSET_TABLE_REGNUM);
13098     info_ptr->gp_size = reg_size * (32 - info_ptr->first_gp_reg_save);
13112   if (TARGET_SPE_ABI && info_ptr->spe_64bit_regs_used != 0)
13113     info_ptr->gp_size = 0;
13115   info_ptr->first_fp_reg_save = first_fp_reg_to_save ();
13116   info_ptr->fp_size = 8 * (64 - info_ptr->first_fp_reg_save);
13118   info_ptr->first_altivec_reg_save = first_altivec_reg_to_save ();
13119   info_ptr->altivec_size = 16 * (LAST_ALTIVEC_REGNO + 1
13120 				 - info_ptr->first_altivec_reg_save);
13123   info_ptr->calls_p = (! current_function_is_leaf
13133       || (info_ptr->first_fp_reg_save != 64
13134 	  && !FP_SAVE_INLINE (info_ptr->first_fp_reg_save))
13135       || info_ptr->first_altivec_reg_save <= LAST_ALTIVEC_REGNO
13137       || info_ptr->calls_p
13140       info_ptr->lr_save_p = 1;
13149       info_ptr->cr_save_p = 1;
13151 	info_ptr->cr_size = reg_size;
13165 		       && info_ptr->spe_64bit_regs_used != 0
13172   info_ptr->reg_size     = reg_size;
13173   info_ptr->fixed_size   = RS6000_SAVE_AREA;
13174   info_ptr->vars_size    = RS6000_ALIGN (get_frame_size (), 8);
13175   info_ptr->parm_size    = RS6000_ALIGN (current_function_outgoing_args_size,
13178     info_ptr->vars_size
13179       += RS6000_ALIGN (info_ptr->fixed_size + info_ptr->vars_size
13180 		       + info_ptr->parm_size,
13182 	 - (info_ptr->fixed_size + info_ptr->vars_size
13183 	    + info_ptr->parm_size);
13185   if (TARGET_SPE_ABI && info_ptr->spe_64bit_regs_used != 0)
13186     info_ptr->spe_gp_size = 8 * (32 - info_ptr->first_gp_reg_save);
13188     info_ptr->spe_gp_size = 0;
13191     info_ptr->vrsave_mask = compute_vrsave_mask ();
13193     info_ptr->vrsave_mask = 0;
13195   if (TARGET_ALTIVEC_VRSAVE && info_ptr->vrsave_mask)
13196     info_ptr->vrsave_size  = 4;
13198     info_ptr->vrsave_size  = 0;
13200   compute_save_world_info (info_ptr);
13211       info_ptr->fp_save_offset   = - info_ptr->fp_size;
13212       info_ptr->gp_save_offset   = info_ptr->fp_save_offset - info_ptr->gp_size;
13216 	  info_ptr->vrsave_save_offset
13217 	    = info_ptr->gp_save_offset - info_ptr->vrsave_size;
13221 	  if (info_ptr->altivec_size != 0)
13222 	    info_ptr->altivec_padding_size
13223 	      = info_ptr->vrsave_save_offset & 0xF;
13225 	    info_ptr->altivec_padding_size = 0;
13227 	  info_ptr->altivec_save_offset
13228 	    = info_ptr->vrsave_save_offset
13229 	    - info_ptr->altivec_padding_size
13230 	    - info_ptr->altivec_size;
13231 	  gcc_assert (info_ptr->altivec_size == 0
13232 		      || info_ptr->altivec_save_offset % 16 == 0);
13235 	  info_ptr->ehrd_offset = info_ptr->altivec_save_offset - ehrd_size;
13238 	info_ptr->ehrd_offset      = info_ptr->gp_save_offset - ehrd_size;
13239       info_ptr->cr_save_offset   = reg_size; /* first word when 64-bit.  */
13240       info_ptr->lr_save_offset   = 2*reg_size;
13244       info_ptr->fp_save_offset   = - info_ptr->fp_size;
13245       info_ptr->gp_save_offset   = info_ptr->fp_save_offset - info_ptr->gp_size;
13246       info_ptr->cr_save_offset   = info_ptr->gp_save_offset - info_ptr->cr_size;
13248       if (TARGET_SPE_ABI && info_ptr->spe_64bit_regs_used != 0)
13252 	  if (info_ptr->spe_gp_size != 0)
13253 	    info_ptr->spe_padding_size
13254 	      = 8 - (-info_ptr->cr_save_offset % 8);
13256 	    info_ptr->spe_padding_size = 0;
13258 	  info_ptr->spe_gp_save_offset
13259 	    = info_ptr->cr_save_offset
13260 	    - info_ptr->spe_padding_size
13261 	    - info_ptr->spe_gp_size;
13264 	  info_ptr->ehrd_offset = info_ptr->spe_gp_save_offset;
13268 	  info_ptr->vrsave_save_offset
13269 	    = info_ptr->cr_save_offset - info_ptr->vrsave_size;
13272 	  if (info_ptr->altivec_size != 0)
13273 	    info_ptr->altivec_padding_size
13274 	      = 16 - (-info_ptr->vrsave_save_offset % 16);
13276 	    info_ptr->altivec_padding_size = 0;
13278 	  info_ptr->altivec_save_offset
13279 	    = info_ptr->vrsave_save_offset
13280 	    - info_ptr->altivec_padding_size
13281 	    - info_ptr->altivec_size;
13284 	  info_ptr->ehrd_offset = info_ptr->altivec_save_offset;
13287 	info_ptr->ehrd_offset    = info_ptr->cr_save_offset;
13288       info_ptr->ehrd_offset      -= ehrd_size;
13289       info_ptr->lr_save_offset   = reg_size;
13294   info_ptr->save_size    = RS6000_ALIGN (info_ptr->fp_size
13295 					 + info_ptr->gp_size
13296 					 + info_ptr->altivec_size
13297 					 + info_ptr->altivec_padding_size
13298 					 + info_ptr->spe_gp_size
13299 					 + info_ptr->spe_padding_size
13301 					 + info_ptr->cr_size
13302 					 + info_ptr->vrsave_size,
13305   non_fixed_size	 = (info_ptr->vars_size
13306 			    + info_ptr->parm_size
13307 			    + info_ptr->save_size);
13309   info_ptr->total_size = RS6000_ALIGN (non_fixed_size + info_ptr->fixed_size,
13324   if (info_ptr->calls_p)
13325     info_ptr->push_p = 1;
13328     info_ptr->push_p = non_fixed_size != 0;
13331     info_ptr->push_p = 1;
13334     info_ptr->push_p = 1;
13337     info_ptr->push_p = non_fixed_size > (TARGET_32BIT ? 220 : 288);
13340   if (info_ptr->fp_size == 0)
13341     info_ptr->fp_save_offset = 0;
13343   if (info_ptr->gp_size == 0)
13344     info_ptr->gp_save_offset = 0;
13346   if (! TARGET_ALTIVEC_ABI || info_ptr->altivec_size == 0)
13347     info_ptr->altivec_save_offset = 0;
13349   if (! TARGET_ALTIVEC_ABI || info_ptr->vrsave_mask == 0)
13350     info_ptr->vrsave_save_offset = 0;
13353       || info_ptr->spe_64bit_regs_used == 0
13354       || info_ptr->spe_gp_size == 0)
13355     info_ptr->spe_gp_save_offset = 0;
13357   if (! info_ptr->lr_save_p)
13358     info_ptr->lr_save_offset = 0;
13360   if (! info_ptr->cr_save_p)
13361     info_ptr->cr_save_offset = 0;
13363   return info_ptr;