"Roger Sayle" writes:
> diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
> index 28c2dc6..ccf5f6d 100644
> --- a/gcc/simplify-rtx.c
> +++ b/gcc/simplify-rtx.c
> @@ -3128,6 +3128,17 @@ simplify_binary_operation_1 (enum rtx_code code,
> machine_mode mode,
>mo
My apologies in advance for a middle-end patch without a test case. The
patch below
implements a simple/safe missing transformation in the RTL optimizers, that
transforms
(A&C)^(B&C) into the equivalent (A^B)&C, when C doesn't side-effect, such as
a constant.
I originally identified this
