tcg: Sanity check goto_tb input

Checking that we don't try for idx != [01] is trivial.  Checking
that we don't issue more than one of any index requires a tad
more data and some ifdefs protecting that new variable.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/tcg/tcg.h b/tcg/tcg.h
index 4501c1520f..af7464a650 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -390,6 +390,7 @@ struct TCGContext {
 
 #ifdef CONFIG_DEBUG_TCG
     int temps_in_use;
+    int goto_tb_issue_mask;
 #endif
 };