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Re: [PING] for 4.3 patches

Hi Uros,

On Wed, 15 Nov 2006, Uros Bizjak wrote:
> 2006-11-15  Uros Bizjak  <>
> 	* config/i386/i386.opt: New target option -mx87regparm.
> 	* config/i386/i386.h (struct ix86_args): Add x87_nregs, x87_regno,
> 	float_in_x87: Add new variables. mmx_words, sse_words: Remove.
> 	(X87_REGPARM_MAX): Define.
> 	* config/i386/i386.c (override_options): Error out for
> 	-mx87regparm but no 80387 support.
> 	(ix86_attribute_table): Add x87regparm.
> 	(ix86_handle_cconv_attribute): Update comments for x87regparm.
> 	(ix86_comp_type_attributes): Check for mismatched x87regparm types.
> 	(ix86_function_x87regparm): New function.
> 	(ix86_function_arg_regno_p): Add X87_REGPARM_MAX 80387 floating
> 	point registers.
> 	(init_cumulative_args): Initialize x87_nregs and float_in_x87
> 	variables.
> 	(function_arg_advance): Process x87_nregs and x87_regno when
> 	floating point argument is to be passed in 80387 register.
> 	(function_arg): Pass XFmode arguments in 80387 registers for local
> 	functions.  Pass SFmode and DFmode arguments to local functions
> 	in 80387 registers when flag_unsafe_math_optimizations is set.
> 	* reg-stack.c (convert_regs_entry): Disable NaN load for
> 	stack registers that are used for argument passing.
> 	* doc/extend.texi: Document x87regparm function attribute.
> 	* doc/invoke.texi: Document -mx87regparm.
> 	* New test.
> 	* New test.
> 	* New test.
> 	* New test.

Excellent.  This version is OK for mainline.  Sorry for the delay
and the conservative design choices.  If you'd like, feel free to
resubmit the "controversial" bits, now that the technical aspects
of the implementation are in the tree.


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