to do this.
Richard.
> Feng
>
> ____________
> From: Richard Biener
> Sent: Monday, September 14, 2020 9:39 PM
> To: Feng Xue OS
> Cc: gcc-patches@gcc.gnu.org
> Subject: Re: Ping: [PATCH 1/2] Fold plusminus_mult expr with multi-use
> operands
____
From: Richard Biener
Sent: Monday, September 14, 2020 9:39 PM
To: Feng Xue OS
Cc: gcc-patches@gcc.gnu.org
Subject: Re: Ping: [PATCH 1/2] Fold plusminus_mult expr with multi-use operands
(PR 94234)
On Mon, Sep 14, 2020 at 5:17 AM Feng Xue OS
OS
> Sent: Thursday, September 3, 2020 2:06 PM
> To: gcc-patches@gcc.gnu.org
> Subject: [PATCH 1/2] Fold plusminus_mult expr with multi-use operands (PR
> 94234)
>
> For pattern A * C +- B * C -> (A +- B) * C, simplification is disabled
> when A and B are not single-use. Thi
Thanks,
Feng
From: Feng Xue OS
Sent: Thursday, September 3, 2020 2:06 PM
To: gcc-patches@gcc.gnu.org
Subject: [PATCH 1/2] Fold plusminus_mult expr with multi-use operands (PR 94234)
For pattern A * C +- B * C -> (A +- B) * C, simplification is disab
For pattern A * C +- B * C -> (A +- B) * C, simplification is disabled
when A and B are not single-use. This patch is a minor enhancement
on the pattern, which allows folding if final result is found to be a
simple gimple value (constant/existing SSA).
Bootstrapped/regtested on x86_64-linux and aa
