diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9762b14e370..221ebc4bd63 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-10-14  David Edelsohn  <edelsohn@gnu.org>
+
+	* opts.c (common_handle_option): Do not enable
+	flag_speculative_prefetching for -fprofile-generate/use.
+
 2004-10-14  Devang Patel  <dpatel@apple.com>
 
 	PR 17635
diff --git a/gcc/opts.c b/gcc/opts.c
index d570b8fe7f0..b88c5039a42 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -842,7 +842,7 @@ common_handle_option (size_t scode, const char *arg, int value)
       if (!flag_value_profile_transformations_set)
         flag_value_profile_transformations = value;
 #ifdef HAVE_prefetch
-      if (!flag_speculative_prefetching_set)
+      if (0 && !flag_speculative_prefetching_set)
 	flag_speculative_prefetching = value;
 #endif
       break;
@@ -855,7 +855,7 @@ common_handle_option (size_t scode, const char *arg, int value)
       if (!flag_value_profile_transformations_set)
         flag_value_profile_transformations = value;
 #ifdef HAVE_prefetch
-      if (!flag_speculative_prefetching_set)
+      if (0 && !flag_speculative_prefetching_set)
 	flag_speculative_prefetching = value;
 #endif
       break;