Re: [PATCH] match.pd: Implement missed optimization (~X | Y) ^ X -> ~(X & Y) [PR109986]

[Jakub Jelinek via Gcc-patches]

On Tue, Jul 25, 2023 at 03:42:21PM -0400, David Edelsohn via Gcc-patches wrote:
> Hi, Drew
> 
> Thanks for addressing this missed optimization.
> 
> The testcase includes an incorrect assumption: signed char, which
> causes the testcase to fail on PowerPC.
> 
> Should the testcase be updated to specify signed char in the function
> signatures or should -fsigned-char be added to the command line
> options?

I think we should use signed char instead of char in the testcase.

        Jakub