Daily bump.

[pf3gnuchains/gcc-fork.git] / gcc / toplev.c

diff --git a/gcc/toplev.c b/gcc/toplev.c
index 766aa99..6bf1736 100644 (file)
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -1325,11 +1325,21 @@ process_options (void)
           "and -ftree-loop-linear)");
 #endif
 
+  if (flag_mudflap && flag_lto)
+    sorry ("mudflap cannot be used together with link-time optimization");
+
   /* One region RA really helps to decrease the code size.  */
   if (flag_ira_region == IRA_REGION_AUTODETECT)
     flag_ira_region
       = optimize_size || !optimize ? IRA_REGION_ONE : IRA_REGION_MIXED;
 
+  if (flag_strict_volatile_bitfields > 0 && !abi_version_at_least (2))
+    {
+      warning (0, "-fstrict-volatile-bitfields disabled; "
+              "it is incompatible with ABI versions < 2");
+      flag_strict_volatile_bitfields = 0;
+    }
+
   /* Unrolling all loops implies that standard loop unrolling must also
      be done.  */
   if (flag_unroll_all_loops)
@@ -1484,12 +1494,15 @@ process_options (void)
   /* If the user specifically requested variable tracking with tagging
      uninitialized variables, we need to turn on variable tracking.
      (We already determined above that variable tracking is feasible.)  */
-  if (flag_var_tracking_uninit)
+  if (flag_var_tracking_uninit == 1)
     flag_var_tracking = 1;
 
   if (flag_var_tracking == AUTODETECT_VALUE)
     flag_var_tracking = optimize >= 1;
 
+  if (flag_var_tracking_uninit == AUTODETECT_VALUE)
+    flag_var_tracking_uninit = flag_var_tracking;
+
   if (flag_var_tracking_assignments == AUTODETECT_VALUE)
     flag_var_tracking_assignments = flag_var_tracking
       && !(flag_selective_scheduling || flag_selective_scheduling2);
@@ -1592,18 +1605,6 @@ process_options (void)
   if (!flag_stack_protect)
     warn_stack_protect = 0;
 
-  /* ??? Unwind info is not correct around the CFG unless either a frame
-     pointer is present or A_O_A is set.  Fixing this requires rewriting
-     unwind info generation to be aware of the CFG and propagating states
-     around edges.  */
-  if (flag_unwind_tables && !ACCUMULATE_OUTGOING_ARGS
-      && flag_omit_frame_pointer)
-    {
-      warning (0, "unwind tables currently require a frame pointer "
-              "for correctness");
-      flag_omit_frame_pointer = 0;
-    }
-
   /* Enable -Werror=coverage-mismatch when -Werror and -Wno-error
      have not been set.  */
   if (!global_options_set.x_warnings_are_errors