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egcs/gcc ChangeLog stupid.c config/i386/i386.m ...

CVSROOT:	/egcs/carton/cvsfiles
Module name:	egcs
Changes by:	wehle@egcs.cygnus.com	99/04/25 11:43:50

Modified files:
	gcc            : ChangeLog stupid.c 
	gcc/config/i386: i386.md i386.c i386.h 

Log message:
	* stupid.c (stupid_mark_refs): Generate a REG_UNUSED note
	for a register which is clobbered even if the register
	was used by an earlier instruction.
	
	* i386.md (fix_truncsfdi2, fix_truncdfdi2,
	fix_truncxfdi2): Don't bother with the gen_reg_RTX.
	(fix_truncsfsi2, fix_truncsfdi2, fix_truncdfsi2,
	fix_truncdfdi2, fix_truncxfsi2, fix_truncxfdi2): Update
	operand constraints and modes.
	* i386.c (output_fix_trunc): Use HImode register to avoid
	memory stalls.  Call output_move_double instead of output_to_reg.
	(output_to_reg): Remove.
	* i386.h: Likewise.
	
	* i386.md (negsf2, negdf2, negxf2): Set the type
	attribute to fpop.