Hi!
On Wed, Feb 15, 2023 at 10:18:29AM +0100, Jakub Jelinek wrote:
> If we wanted to get back the signed op1 * op2 + op3 all in the DImode
> into TImode op0, we'd need to introduce a new tree code next to
> WIDEN_MULT_PLUS_EXPR and maddMN4 expander, because I'm afraid it can't
> be done at expansi
Hi!
WIDEN_MULT_PLUS_EXPR as documented has the factor operands with
the same precision and the addend and result another one at least twice
as wide.
Similarly, {,u}maddMN4 is documented as
'maddMN4'
Multiply operands 1 and 2, sign-extend them to mode N, add operand
3, and store the resul
