Initial integration of G77.

Please do a make cleandir before rebuilding gcc!

1 files changed, 19 insertions, 0 deletions

diff --git a/gnu/usr.bin/gcc/toplev.c b/gnu/usr.bin/gcc/toplev.c
index 1b6fccb5d60..4d33910170d 100644
--- a/gnu/usr.bin/gcc/toplev.c
+++ b/gnu/usr.bin/gcc/toplev.c
@@ -387,6 +387,20 @@ int flag_unroll_loops;
 
 int flag_unroll_all_loops;
 
+/* Nonzero forces all invariant computations in loops to be moved
+   outside the loop. */
+
+int flag_move_all_movables = 0;
+
+/* Nonzero forces all general induction variables in loops to be
+   strength reduced. */
+
+int flag_reduce_all_givs = 0;
+
+/* Nonzero gets another run of loop_optimize performed. */
+
+int flag_rerun_loop_opt = 0;
+
 /* Nonzero for -fwritable-strings:
    store string constants in data segment and don't uniquize them.  */
 
@@ -541,6 +555,9 @@ struct { char *string; int *variable; int on_value;} f_options[] =
   {"strength-reduce", &flag_strength_reduce, 1},
   {"unroll-loops", &flag_unroll_loops, 1},
   {"unroll-all-loops", &flag_unroll_all_loops, 1},
+  {"move-all-movables", &flag_move_all_movables, 1},
+  {"reduce-all-givs", &flag_reduce_all_givs, 1},
+  {"rerun-loop-opt", &flag_rerun_loop_opt, 1},
   {"writable-strings", &flag_writable_strings, 1},
   {"peephole", &flag_no_peephole, 0},
   {"force-mem", &flag_force_mem, 1},
@@ -2893,6 +2910,8 @@ rest_of_compilation (decl)
       TIMEVAR (loop_time,
 	       {
 		 loop_optimize (insns, loop_dump_file);
+		 if (flag_rerun_loop_opt)
+		 	loop_optimize (insns, loop_dump_file);
 	       });
     }