[PING 3][PATCH] track dynamic allocation in strlen (PR 91582)

[Jakub Jelinek]

On Fri, Dec 06, 2019 at 05:19:36PM -0700, Martin Sebor wrote:
> With part 2 (below) of this work committed, I've rebased the patch
> on the top of trunk and on top of the updated part 1 (also below).
> Attached is the result, retested on x86_64-linux.

> --- a/gcc/tree-ssa-strlen.c
> +++ b/gcc/tree-ssa-strlen.c
> @@ -61,6 +61,7 @@ along with GCC; see the file COPYING3.  If not see
>  #include "vr-values.h"
>  #include "gimple-ssa-evrp-analyze.h"
>  
> +#pragma GCC optimize ("0")
>  /* A vector indexed by SSA_NAME_VERSION.  0 means unknown, positive value
>     is an index into strinfo vector, negative value stands for
>     string length of a string literal (~strlen).  */

Why this?  Some debugging left-over?

	Jakub