[Bug tree-optimization/103899] [12 Regression] make profiledbootstrap fails due to uninitialized warning in expr.c

["marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103899

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-01-05
                 CC|                            |aldyh at gcc dot gnu.org

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #4)
> Reduced testcase:
> int h;
> int l ();
> int *k ();
> void nn ();
> void expand_expr_real_1 (int *exp)
> {
> 	int m;
> 	int *context;
> 	m = 2;
> 	if (h || !exp)
> 		m = l ();
> 	if (exp)
> 		context = k ();
> 	if (exp && context && context[0] == 0)
> 	if (m == 0)
> 	   nn ();
> }
> ----- CUT ----
> Compile with "-O2 -W -Wall -Werror", there is no warning but once you add
> -fprofile-generate there is an uninitialized warning for context.
> There is a missing jump threading on the trunk which is causing the warning
> to show up.

Started with r12-4790-g4b3a325f07acebf4, may I remove needs-bisection Keyword?