Author: Jan Hubicka
Date:
To: H.J. Lu
CC: GCC Patches, Ye, Joey, Guo, Xuepeng, Jan Hubicka, Uros Bizjak
Subject: Re: [5/7] v10: Update x86 backend
> 2008-07-08 Joey Ye <joey.ye@???>
> H.J. Lu <hongjiu.lu@???>
>
> * config/i386/i386.c (ix86_force_align_arg_pointer_string):
> Break long line.
> (ix86_gen_andsp): New.
> (ix86_user_incoming_stack_boundary): Likewise.
> (ix86_default_incoming_stack_boundary): Likewise.
> (ix86_incoming_stack_boundary): Likewise.
> (ix86_can_eliminate): Likewise.
> (find_drap_reg): Likewise.
> (ix86_update_stack_boundary): Likewise.
> (ix86_get_drap_rtx): Likewise.
> (ix86_finalize_stack_realign_flags): Likewise.
> (TARGET_UPDATE_STACK_BOUNDARY): Likewise.
> (TARGET_GET_DRAP_RTX): Likewise.
> (override_options): Overide option value for new options.
> (ix86_function_ok_for_sibcall): Remove check for
> force_align_arg_pointer.
> (ix86_handle_cconv_attribute): Likewise.
> (ix86_function_regparm): Likewise.
> (setup_incoming_varargs_64): Don't set stack_alignment_needed
> here.
> (ix86_va_start): Replace virtual_incoming_args_rtx with
> crtl->args.internal_arg_pointer.
> (ix86_select_alt_pic_regnum): Check DRAP register.
> (ix86_save_reg): Replace force_align_arg_pointer with drap_reg.
> (ix86_compute_frame_layout): Compute frame layout wrt stack
> realignment.
> (ix86_internal_arg_pointer): Just return
> virtual_incoming_args_rtx.
> (ix86_expand_prologue): Decide if stack realignment is needed
> and generate prologue code accordingly.
> (ix86_expand_epilogue): Generate epilogue code wrt stack
> realignment is really needed or not.
>
> * config/i386/i386.h (MAIN_STACK_BOUNDARY): New.
> (ABI_STACK_BOUNDARY): Likewise.
> (PREFERRED_STACK_BOUNDARY_DEFAULT): Likewise.
> (STACK_REALIGN_DEFAULT): Likewise.
> (INCOMING_STACK_BOUNDARY): Likewise.
> (MAX_STACK_ALIGNMENT): Likewise.
> (ix86_incoming_stack_boundary): Likewise.
> (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): Removed.
> (REAL_PIC_OFFSET_TABLE_REGNUM): Updated to use BX_REG.
> (CAN_ELIMINATE): Defined with ix86_can_eliminate.
> (machine_function): Remove force_align_arg_pointer.
>
> * config/i386/i386.md (BX_REG): New.
> (R13_REG): Likewise.
>
> * config/i386/i386.opt (mforce_drap): New.
> (mincoming-stack-boundary): Likewise.
> (mstackrealign): Add Init(-1).
>
> * config/i386/i386-protos.h (ix86_can_eliminate): New
> 2008-07-08 Joey Ye <joey.ye@???>
> H.J. Lu <hongjiu.lu@???>
>
> * config/i386/i386.c (ix86_force_align_arg_pointer_string):
> Break long line.
> (ix86_gen_andsp): New.
> (ix86_user_incoming_stack_boundary): Likewise.
> (ix86_default_incoming_stack_boundary): Likewise.
> (ix86_incoming_stack_boundary): Likewise.
> (ix86_can_eliminate): Likewise.
> (find_drap_reg): Likewise.
> (ix86_update_stack_boundary): Likewise.
> (ix86_get_drap_rtx): Likewise.
> (ix86_finalize_stack_realign_flags): Likewise.
> (TARGET_UPDATE_STACK_BOUNDARY): Likewise.
> (TARGET_GET_DRAP_RTX): Likewise.
> (override_options): Overide option value for new options.
> (ix86_function_ok_for_sibcall): Remove check for
> force_align_arg_pointer.
> (ix86_handle_cconv_attribute): Likewise.
> (ix86_function_regparm): Likewise.
> (setup_incoming_varargs_64): Don't set stack_alignment_needed
> here.
> (ix86_va_start): Replace virtual_incoming_args_rtx with
> crtl->args.internal_arg_pointer.
> (ix86_select_alt_pic_regnum): Check DRAP register.
> (ix86_save_reg): Replace force_align_arg_pointer with drap_reg.
> (ix86_compute_frame_layout): Compute frame layout wrt stack
> realignment.
> (ix86_internal_arg_pointer): Just return
> virtual_incoming_args_rtx.
> (ix86_expand_prologue): Decide if stack realignment is needed
> and generate prologue code accordingly.
> (ix86_expand_epilogue): Generate epilogue code wrt stack
> realignment is really needed or not.
>
> * config/i386/i386.h (MAIN_STACK_BOUNDARY): New.
> (ABI_STACK_BOUNDARY): Likewise.
> (PREFERRED_STACK_BOUNDARY_DEFAULT): Likewise.
> (STACK_REALIGN_DEFAULT): Likewise.
> (INCOMING_STACK_BOUNDARY): Likewise.
> (MAX_STACK_ALIGNMENT): Likewise.
> (ix86_incoming_stack_boundary): Likewise.
> (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): Removed.
> (REAL_PIC_OFFSET_TABLE_REGNUM): Updated to use BX_REG.
> (CAN_ELIMINATE): Defined with ix86_can_eliminate.
> (machine_function): Remove force_align_arg_pointer.
>
> * config/i386/i386.md (BX_REG): New.
> (R13_REG): Likewise.
>
> * config/i386/i386.opt (mforce_drap): New.
> (mincoming-stack-boundary): Likewise.
> (mstackrealign): Add Init(-1).
>
> * config/i386/i386-protos.h (ix86_can_eliminate): New
>
OK
Honza
