Hi!
As mentioned in the PR, for boolean x we currently optimize
in phiopt x ? 0 : -1 into -(int)!x but it can be optimized as
(int) x - 1 which is one less operation both in GIMPLE and in x86 assembly.
Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?
And/or, shall we have a m
On December 5, 2020 10:10:25 AM GMT+01:00, Jakub Jelinek
wrote:
>Hi!
>
>As mentioned in the PR, for boolean x we currently optimize
>in phiopt x ? 0 : -1 into -(int)!x but it can be optimized as
>(int) x - 1 which is one less operation both in GIMPLE and in x86
>assembly.
>
>Bootstrapped/regteste
