* go-lang.c (go_langhook_post_options): If

	-fisolate-erroneous-paths was turned on by an optimization option,
	turn it off.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204459 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 6 insertions, 0 deletions

diff --git a/gcc/go/go-lang.c b/gcc/go/go-lang.c
index 37d61d1f5d7..14080f098c8 100644
--- a/gcc/go/go-lang.c
+++ b/gcc/go/go-lang.c
@@ -268,6 +268,12 @@ go_langhook_post_options (const char **pfilename ATTRIBUTE_UNUSED)
   if (flag_excess_precision_cmdline == EXCESS_PRECISION_DEFAULT)
     flag_excess_precision_cmdline = EXCESS_PRECISION_STANDARD;
 
+  /* The isolate_erroneous_paths optimization can change a nil
+     dereference from a panic to a trap, so we have to disable it for
+     Go, even though it is normally enabled by -O2.  */
+  if (!global_options_set.x_flag_isolate_erroneous_paths)
+    global_options.x_flag_isolate_erroneous_paths = 0;
+
   /* Returning false means that the backend should be used.  */
   return false;
 }