Re: [PATCH] s390: Change SET rtx_cost handling.

2022-02-25 Thread Andreas Krebbel via Gcc-patches
On 2/25/22 12:38, Robin Dapp wrote: > Hi, > > the IF_THEN_ELSE detection currently prevents us from properly costing > register-register moves which causes the lower-subreg pass to assume > that a VR-VR move is as expensive as two GPR-GPR moves. > > This patch adds handling for SETs containing RE

[PATCH] s390: Change SET rtx_cost handling.

2022-02-25 Thread Robin Dapp via Gcc-patches
: * gcc.target/s390/vector/vec-sum-across-no-lower-subreg-1.c: New test. >From 8c4c6f029dbf0c9db12c2877189a5ec0ce0a9c89 Mon Sep 17 00:00:00 2001 From: Robin Dapp Date: Thu, 3 Feb 2022 12:50:04 +0100 Subject: [PATCH] s390: Change SET rtx_cost handling. The IF_THEN_ELSE detect