2004-09-11  Toon Moene  <toon@moene.indiv.nluug.nl>

	* common.opt: Remove flags -fmove-all-movables and
	-freduce-all-givs.
	* loop-invariant.c (find_invariants_to_move):
	Remove all uses of flag_move_all_movables.
	* loop.c (move_movables): Remove all uses of
	flag_move_all_movables.
	(strength_reduce): Remove all uses of
	flag_reduce_all_givs.
	* doc/invoke.texi: Remove documentation of flags
	-fremove-all-movables and -freduce-all-givs.

*** common.opt.orig	Fri Sep 10 22:29:33 2004
--- common.opt	Sat Sep 11 18:59:54 2004
*************** fmodulo-sched
*** 523,532 ****
  Common Report Var(flag_modulo_sched)
  Perform SMS based modulo scheduling before the first scheduling pass
  
- fmove-all-movables
- Common Report Var(flag_move_all_movables)
- Force all loop invariant computations out of loops
- 
  fmove-loop-invariants
  Common Report Var(flag_move_loop_invariants)
  Move loop invariant computations out of loops
--- 523,528 ----
*************** frandom-seed=
*** 646,655 ****
  Common Joined RejectNegative
  -frandom-seed=<string>	Make compile reproducible using <string>
  
- freduce-all-givs
- Common Report Var(flag_reduce_all_givs)
- Strength reduce all loop general induction variables
- 
  freg-struct-return
  Common Report Var(flag_pcc_struct_return,0) VarExists
  Return small aggregates in registers
--- 642,647 ----
*** loop-invariant.c.orig	Fri Sep 10 22:29:35 2004
--- loop-invariant.c	Sat Sep 11 19:00:31 2004
*************** find_invariants_to_move (struct df *df)
*** 715,731 ****
    unsigned i, regs_used, n_inv_uses, regs_needed = 0, new_regs;
    struct invariant *inv = NULL;
  
-   if (flag_move_all_movables)
-     {
-       /* This is easy & stupid.  */
-       for (i = 0; i < VARRAY_ACTIVE_SIZE (invariants); i++)
- 	{
- 	  inv = VARRAY_GENERIC_PTR_NOGC (invariants, i);
- 	  inv->move = true;
- 	}
-       return;
-     }
- 
    if (!VARRAY_ACTIVE_SIZE (invariants))
      return;
  
--- 715,720 ----
*** loop.c.orig	Fri Sep 10 22:29:35 2004
--- loop.c	Sat Sep 11 19:02:23 2004
*************** move_movables (struct loop *loop, struct
*** 1885,1891 ****
  	     extra cost because something else was already moved.  */
  
  	  if (already_moved[regno]
- 	      || flag_move_all_movables
  	      || (threshold * savings * m->lifetime) >=
  		 (regs->array[regno].moved_once ? insn_count * 2 : insn_count)
  	      || (m->forces && m->forces->done
--- 1885,1890 ----
*************** strength_reduce (struct loop *loop, int 
*** 5122,5129 ****
  	     of such giv's whether or not we know they are used after the loop
  	     exit.  */
  
! 	  if (! flag_reduce_all_givs
! 	      && v->lifetime * threshold * benefit < insn_count
  	      && ! bl->reversed)
  	    {
  	      if (loop_dump_stream)
--- 5121,5127 ----
  	     of such giv's whether or not we know they are used after the loop
  	     exit.  */
  
! 	  if (v->lifetime * threshold * benefit < insn_count
  	      && ! bl->reversed)
  	    {
  	      if (loop_dump_stream)
*** doc/invoke.texi.orig	Sat Sep 11 12:06:53 2004
--- doc/invoke.texi	Sat Sep 11 19:04:13 2004
*************** Objective-C and Objective-C++ Dialects}.
*** 294,300 ****
  -floop-optimize -fcrossjumping  -fif-conversion  -fif-conversion2 @gol
  -finline-functions  -finline-limit=@var{n}  -fkeep-inline-functions @gol
  -fkeep-static-consts  -fmerge-constants  -fmerge-all-constants @gol
! -fmodulo-sched -fmove-all-movables  -fnew-ra  -fno-branch-count-reg @gol
  -fno-default-inline  -fno-defer-pop -floop-optimize2 -fmove-loop-invariants @gol
  -fno-function-cse  -fno-guess-branch-probability @gol
  -fno-inline  -fno-math-errno  -fno-peephole  -fno-peephole2 @gol
--- 294,300 ----
  -floop-optimize -fcrossjumping  -fif-conversion  -fif-conversion2 @gol
  -finline-functions  -finline-limit=@var{n}  -fkeep-inline-functions @gol
  -fkeep-static-consts  -fmerge-constants  -fmerge-all-constants @gol
! -fmodulo-sched -fnew-ra  -fno-branch-count-reg @gol
  -fno-default-inline  -fno-defer-pop -floop-optimize2 -fmove-loop-invariants @gol
  -fno-function-cse  -fno-guess-branch-probability @gol
  -fno-inline  -fno-math-errno  -fno-peephole  -fno-peephole2 @gol
*************** Objective-C and Objective-C++ Dialects}.
*** 303,309 ****
  -fomit-frame-pointer  -foptimize-register-move @gol
  -foptimize-sibling-calls  -fprefetch-loop-arrays @gol
  -fprofile-generate -fprofile-use @gol
! -freduce-all-givs  -fregmove  -frename-registers @gol
  -freorder-blocks  -freorder-blocks-and-partition -freorder-functions @gol
  -frerun-cse-after-loop  -frerun-loop-opt @gol
  -frounding-math -fschedule-insns  -fschedule-insns2 @gol
--- 303,309 ----
  -fomit-frame-pointer  -foptimize-register-move @gol
  -foptimize-sibling-calls  -fprefetch-loop-arrays @gol
  -fprofile-generate -fprofile-use @gol
! -fregmove  -frename-registers @gol
  -freorder-blocks  -freorder-blocks-and-partition -freorder-functions @gol
  -frerun-cse-after-loop  -frerun-loop-opt @gol
  -frounding-math -fschedule-insns  -fschedule-insns2 @gol
*************** the loop is entered.  This usually makes
*** 4702,4721 ****
  If supported by the target machine, generate instructions to prefetch
  memory to improve the performance of loops that access large arrays.
  
- @item -fmove-all-movables
- @opindex fmove-all-movables
- Forces all invariant computations in loops to be moved
- outside the loop.
- 
- @item -freduce-all-givs
- @opindex freduce-all-givs
- Forces all general-induction variables in loops to be
- strength-reduced.
- 
- @emph{Note:} When compiling programs written in Fortran,
- @option{-fmove-all-movables} and @option{-freduce-all-givs} are enabled
- by default when you use the optimizer.
- 
  These options may generate better or worse code; results are highly
  dependent on the structure of loops within the source code.
  
--- 4702,4707 ----