On Mon, May 30, 2022 at 7:50 PM Roger Sayle wrote:
>
>
> This patch resolves PR rtl-optimization/101617 where we should generate
> the exact same code for (X ? -1 : 1) as we do for ((X ? -1 : 0) | 1).
> The cause of the current difference on x86_64 is actually in
> ix86_expand_int_movcc that doesn
This patch resolves PR rtl-optimization/101617 where we should generate
the exact same code for (X ? -1 : 1) as we do for ((X ? -1 : 0) | 1).
The cause of the current difference on x86_64 is actually in
ix86_expand_int_movcc that doesn't know that negl;sbbl can be used
to create a -1/0 result depe
