re PR target/78213 (-fself-test fails on aarch64)

	PR target/78213
	* opts.c (finish_options): Set -fsyntax-only if running self
	tests.

From-SVN: r242748

1 files changed, 8 insertions, 0 deletions

diff --git a/gcc/opts.c b/gcc/opts.c
index d2d6100..cb20154 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -744,6 +744,14 @@ finish_options (struct gcc_options *opts, struct gcc_options *opts_set,
       opts->x_flag_toplevel_reorder = 0;
     }
 
+  /* -fself-test depends on the state of the compiler prior to
+     compiling anything.  Ideally it should be run on an empty source
+     file.  However, in case we get run with actual source, assume
+     -fsyntax-only which will inhibit any compiler initialization
+     which may confuse the self tests.  */
+  if (opts->x_flag_self_test)
+    opts->x_flag_syntax_only = 1;
+
   if (opts->x_flag_tm && opts->x_flag_non_call_exceptions)
     sorry ("transactional memory is not supported with non-call exceptions");