1 files changed, 5 insertions, 0 deletions
diff --git a/sparc.c b/sparc.c
index 8b49831..db40e8d 100644
--- a/sparc.c
+++ b/sparc.c
@@ -2258,6 +2258,11 @@ flush_windows (struct pstate *sregs)
   int win;
   int ws;
 
+  /* Skip if window potentially not valid */
+
+  if ((!(sregs->psr & PSR_ET)) || ((sregs->psr & PSR_PIL) == 0x0f00))
+    return;
+
   /* Keep current window handy */
 
   cwp = sregs->psr & PSR_CWP;