[Bug bootstrap/69123] [6 Regression] --with-build-config='bootstrap-O3 bootstrap-debug' miscompiled stage 2

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69123

--- Comment #10 from H.J. Lu <hjl.tools at gmail dot com> ---
This change makes it to compile:

diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c
index 07eea84..43a85b7 100644
--- a/gcc/var-tracking.c
+++ b/gcc/var-tracking.c
@@ -4968,7 +4968,7 @@ dataflow_set_different (dataflow_set *old_set,
dataflow_set *new_set)
   if (old_set->vars == new_set->vars)
     return false;

-  if (shared_hash_htab (old_set->vars)->elements ()
+  if (0 && shared_hash_htab (old_set->vars)->elements ()
       != shared_hash_htab (new_set->vars)->elements ())
     return true;