(emit_block_move): Eliminate unnecessary test against HOST_BITS_PER_WIDE_INT.

From-SVN: r1994

SET_SRC.

From-SVN: r1993

From-SVN: r1992

(save_for_inline_copying):  When making copies of NOTE_INSN_BLOCK_END
notes, stash a "forwarding" pointer in the original to point to the
copy.  Also, when all BLOCKs & insns for a function have been copied,
call `adjust_copied_decl_tree' to fixup the end_note pointers in the
copied BLOCKs.

From-SVN: r1991

(remember_end_note):  New function.
(expand_end_bindings): Save NOTE_INSN_BLOCK_END in last_block_end_note.

(struct goto_fixup): New field context.
(fixup_cleanups): Function deleted.
(fixup_gotos): Put the fixup in a block, and put that block
into its proper place.  Use sequences, not reorder_insns.

From-SVN: r1990

From-SVN: r1989

(struct tree_block):  `end_note' field added.

From-SVN: r1988

From-SVN: r1987

From-SVN: r1986

From-SVN: r1985

From-SVN: r1984

From-SVN: r1983

Avoid double-negative "! NON_*" constructs for clarity.
Pass NULL_PTR as null parameter instead of 0.
(sqrtM2): Patterns are only valid if IEEE FP or -ffast-math.
(sinM2,cosM2): New patterns.
(zero_extract test): New pattern.

From-SVN: r1982

(legitimize_pic_address): Pass NULL_RTX instead of "0" as pointer.

From-SVN: r1981

(record_reg_life_pat): Rewrite to handle any sort of pattern.
(record_reg_life): Change interface to record_reg_life_pat.
(stack_reg_life_analysis): Don't assume that MODE_FLOAT values are
always returned in a float reg.
(subst_stack_regs_pat): Add support for sin and cos insns.

From-SVN: r1980

From-SVN: r1979

(init_optabs): Initialize them.

From-SVN: r1978

From-SVN: r1977

From-SVN: r1976

From-SVN: r1975

From-SVN: r1974

From-SVN: r1973

From-SVN: r1972

From-SVN: r1971

From-SVN: r1970

Enhance to fill the last delay slot of a call with an
	unconditional jump.
	(fill_simple_delay_slots): Look for the case of a call/branch
	first.  If this applies, record the jump as `last_delay_insn'.
	Later, don't look for additional delay insns if the last one has
	alreay been filled.
	(mark_target_live_regs): A sequence may end in an unconditional
	branch.

From-SVN: r1969

From-SVN: r1968

From-SVN: r1967

specification.

From-SVN: r1966

From-SVN: r1965

	Major rework to have caller-saves emit load/store double insns when
	possible and to avoid useless resaving of registers restored for
	source accesses only.
	* caller-save.c (toplevel): All arrays are multi-dimensional to
	hold information for multiple save/restore insns.  New variable
	hard_regs_need_restore.
	(choose_hard_reg_mode): New argument `nregs' indicating how many
	hard registers are desired.  All callers changed.
	(init_caller_save): Change initialization to handle multiple
	register saves.  A call-used register can not be live across
	if we can not find a single register mode to save it in.
	(multiple register saves are optional)
	(init_save_areas): Change initialization of regno_save_mem to
	handle multiple register saves.
	(setup_save_areas): Allocate space for consecutive hard registers
	in aligned consecutive memory locations.   When allocating space
	for consecutive hard registers, also initialize regno_save_mem
	for each hard register stored as a single word.
	(save_call_clobbered_regs): Initialize hard_regs_need_restore.
	Set hard_regs_need_restore to hard_regs_saved after crossing
	a call.  Also recompute n_regs_saved.  At the end of a basic block
	we need only restore registers in hard_regs_need_restore.
	(set_reg_live, clear_reg_live): Do the right thing for
	hard_regs_need_restore and hard_regs_saved.
	(restore_referenced_regs): Just return if X is a clobber.
	Test hard_regs_need_restore to determine when to restore a hard
	register from the save area.
	(insert_save_restore): Now returns the number of extra registers
	saved/restored.  New argument `maxrestore' which constrains how
	many hard registers should be restored.  All callers changed.
	Do stores of consecutive registers with double store insns if
	possible.  Else do them with single word insns. Likewise for
	loads, except constrained by maxrestore.  Set hard_regs_saved
	and hard_regs_need_restore appropriately to minimize useless
	saves into the save area.  Test against	hard_regs_need_restore
	when trying to restore multiple regs and similarly test against
	hard_regs_saved when storing multiple regs.

From-SVN: r1964

From-SVN: r1963

Add #ifdef INSN_SCHEDULING around variables only used
by schedule_insns.
(INSN_QUEUE_SIZE): Delete default definition.

From-SVN: r1962

Partially undo Mar 7 change.  Only call
emit_library_call with no_queue == 1 for const functions.

From-SVN: r1961

From-SVN: r1960

From-SVN: r1959

(current_block): New function.
(struct binding_level): New field this_block.
(poplevel): Use this_block if nonzero, rather than making new BLOCK.
(insert_block, delete_block): New functions.

From-SVN: r1958

(float*, fix*): Rewrite to match hardware; take/put
integer input/output from/to fp register instead of memory or
general register.  Delete 6 now obsolete combiner patterns.

From-SVN: r1957

From-SVN: r1956

(output_floatsisf2, output_floatsidf2, output_floatsitf2): Delete.

From-SVN: r1955