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Re: [PATCH, powerpc] Rework#2 VSX scalar floating point support, patch #5

On Mon, Oct 14, 2013 at 08:59:50PM -0400, David Edelsohn wrote:
> Please use "VMX" instead of "AV", not because I am pedantic about
> IBM's name for the feature, but "AV" is meaningless to me and anyone
> else reading the code. If you need a three-letter name, use "VMX".
> Okay with that change.

I just applied the following patch.

2013-10-17  Michael Meissner  <>

	* config/rs6000/rs6000.c (enum rs6000_reload_reg_type): Add new
	fields to the reg_addr array that describes the valid addressing
	mode for any register, general purpose registers, floating point
	registers, and Altivec registers.
	(struct reload_reg_map_type): Likewise.
	(reload_reg_map_type): Likewise.
	(RELOAD_REG_VALID): Likewise.
	(reg_addr): Likewise.
	(mode_supports_pre_incdec_p): New helper functions to say whether
	a given mode supports PRE_INC, PRE_DEC, and PRE_MODIFY.
	(mode_supports_pre_modify_p): Likewise.
	(rs6000_debug_vector_unit): Rearrange the -mdebug=reg output to
	print the valid address mode bits for each mode.
	(rs6000_debug_print_mode): Likewise.
	(rs6000_debug_reg_global): Likewise.
	(rs6000_setup_reg_addr_masks): New function to set up the address
	mask bits for each type.
	(rs6000_init_hard_regno_mode_ok): Use memset to clear arrays.
	Call rs6000_setup_reg_addr_masks to set up the address mask bits.
	(rs6000_legitimate_address_p): Use mode_supports_pre_incdec_p and
	mode_supports_pre_modify_p to determine if PRE_INC, PRE_DEC, and
	PRE_MODIFY are supported.
	(rs6000_output_move_128bit): Change to use {src,dest}_vmx_p for altivec
	registers, instead of {src,dest}_av_p.
	(rs6000_print_options_internal): Tweak the debug output slightly.

Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460, USA
email:, phone: +1 (978) 899-4797

Attachment: gcc-power8.patch064c
Description: Text document

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