egcs/gcc Tag: gcc-2_95-branch ChangeLog config ...

[law@egcs.cygnus.com]

CVSROOT:	/egcs/carton/cvsfiles
Module name:	egcs
Changes by:	law@egcs.cygnus.com	99/08/06 19:46:27

Modified files:
	gcc            : Tag: gcc-2_95-branch ChangeLog 
	gcc/config/rs6000: Tag: gcc-2_95-branch rs6000.md 

Log message:
	* rs6000.md (arithmetic, logical, and shift Rc combiner patterns):
	Disable patterns performing SImode comparisons with SImode values
	if TARGET_POWERPC64 and instruction does not sign-extend or does
	not mask to narrower than SImode, i.e. where bit 31 and bit 63 may
	differ for signed quantities.
	(indirect_jump): Add expander to choose RTL based on TARGET_64BIT.
	(tablejump): Patterns contingent on TARGET_64BIT not TARGET_POWERPC64.
	(decrement_and_branch_on_count): Add 64-bit variant.