On 11/18/2015 03:35 PM, Dominik Vogt wrote:
> The attached patch fixes the S/390 patterns using the "pfpo"
> instruction in s390.md. The instructions clobber r1, but the
> patterns did not reflect that.
Good catch!
Your testcase requires -mzarch in the options to enable pfpo with -m31 as well.
/pfpo.c: New test.
>From c7ddb09c08d4d3e4d394588aa8aa43331582db86 Mon Sep 17 00:00:00 2001
From: Dominik Vogt
Date: Tue, 17 Nov 2015 20:10:04 +0100
Subject: [PATCH] S/390: Clobber r1 in patterns resulting in pfpo
instruction.
---
gcc/config/s390/s390.md | 25 +-
