opts.c (decode_options): Do not handle flag_strength_reduce.

	* opts.c (decode_options): Do not handle flag_strength_reduce.
	(common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
	and OPT_fstrength_reduce.
	* tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
	flag_prefetch_loop_arrays for being nonzero.
	* common.opt (floop-optimize, frerun-loop-opt): Resurrected as
	no-ops.
	(fprefetch-loop-arrays-rtl): Removed.
	(flag_prefetch_loop_arrays): Do not specify the value.

	* doc/passes.texi: Update documentation of loop optimizer
	passes.
	* doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
	-frerun-loop-opt): Remove.

	* gcc.target/i386/20000614-2.c: Do not use -fno-strength-reduce.
	* gcc.dg/20030324-1.c: Do not use -fstrength-reduce.

From-SVN: r111469

1 files changed, 6 insertions, 1 deletions

diff --git a/gcc/opts.c b/gcc/opts.c
index ce0a5a9..d804761 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -564,7 +564,6 @@ decode_options (unsigned int argc, const char **argv)
       flag_gcse = 1;
       flag_expensive_optimizations = 1;
       flag_ipa_type_escape = 1;
-      flag_strength_reduce = 1;
       flag_rerun_cse_after_loop = 1;
       flag_caller_saves = 1;
       flag_peephole2 = 1;
@@ -1083,6 +1082,12 @@ common_handle_option (size_t scode, const char *arg, int value,
       warning (0, "-f[no-]force-mem is nop and option will be removed in 4.2");
       break;
 
+    case OPT_floop_optimize:
+    case OPT_frerun_loop_opt:
+    case OPT_fstrength_reduce:
+      /* These are no-ops, preserved for backward compatability.  */
+      break;
+
     default:
       /* If the flag was handled in a standard way, assume the lack of
 	 processing here is intentional.  */