1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/tracer.c b/gcc/tracer.c
index d3523b985b1..602e7580d99 100644
--- a/gcc/tracer.c
+++ b/gcc/tracer.c
@@ -90,10 +90,19 @@ bb_seen_p (basic_block bb)
 static bool
 ignore_bb_p (const_basic_block bb)
 {
+  gimple g;
+
   if (bb->index < NUM_FIXED_BLOCKS)
     return true;
   if (optimize_bb_for_size_p (bb))
     return true;
+
+  /* A transaction is a single entry multiple exit region.  It must be
+     duplicated in its entirety or not at all.  */
+  g = last_stmt (CONST_CAST_BB (bb));
+  if (g && gimple_code (g) == GIMPLE_TRANSACTION)
+    return true;
+
   return false;
 }