common.opt: Remove flags -fmove-all-movables and -freduce-all-givs.

2004-09-12  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.

From-SVN: r87386

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7316abd0135798cadd165951e621d2f915471ccb..f9b548a830aec1e4852824a599e7be9c13b91310 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,16 @@
+2004-09-12  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.
+
 2004-09-11  Roger Sayle  <roger@eyesopen.com>
 
        PR middle-end/17411

diff --git a/gcc/common.opt b/gcc/common.opt
index 619740c24de85838bb5ee9f0d7cf20a7eabff502..147f37fd23a4b468a354f830846fffbbd5334e17 100644 (file)
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -523,10 +523,6 @@ fmodulo-sched
 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
@@ -646,10 +642,6 @@ frandom-seed=
 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

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index f728eb95268b81900bcf5d53356f6486d0cf02c2..4cb1c1599d4777e73d3458559bba58f4d6f1a73d 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -294,7 +294,7 @@ Objective-C and Objective-C++ Dialects}.
 -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
+-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
@@ -303,7 +303,7 @@ Objective-C and Objective-C++ Dialects}.
 -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
+-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
@@ -4702,20 +4702,6 @@ the loop is entered.  This usually makes programs run more slowly.
 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.
 

diff --git a/gcc/loop-invariant.c b/gcc/loop-invariant.c
index 2004dbf1df3ce88675a6e49daff833202e2fb942..36d5118d135233bbd5e9e6d1f197211c1cc21afd 100644 (file)
--- a/gcc/loop-invariant.c
+++ b/gcc/loop-invariant.c
@@ -715,17 +715,6 @@ find_invariants_to_move (struct df *df)
   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;
 

diff --git a/gcc/loop.c b/gcc/loop.c
index 8f1ace8f1c453d8ce80381ba25b81c7e41869dde..11e16a5a8c745ae7573f6587633f2e7ddac88976 100644 (file)
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -1885,7 +1885,6 @@ move_movables (struct loop *loop, struct loop_movables *movables,
             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
@@ -5122,8 +5121,7 @@ strength_reduce (struct loop *loop, int flags)
             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
+         if (v->lifetime * threshold * benefit < insn_count
              && ! bl->reversed)
            {
              if (loop_dump_stream)