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Date: Fri, 31 Mar 2017 15:38:00 -0000
From: Segher Boessenkool <segher@kernel.crashing.org>
To: Pat Haugen <pthaugen@linux.vnet.ibm.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>, David Edelsohn <dje.gcc@gmail.com>
Subject: Re: [PATCH rs6000] Fix PR target/80107, ICE in final_scan_insn
Message-ID: <20170331153556.GC4402@gate.crashing.org>
References: <b30aaf02-e1ad-3cd9-d779-53afc6269961@linux.vnet.ibm.com>
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On Fri, Mar 31, 2017 at 10:25:00AM -0500, Pat Haugen wrote:
> float<QHI:mode><FP_ISA3:mode>2_internal uses gen_extendhidi2 on a VSX
> register but extendhidi2 only supports GPRs if -mno-gen-cell-microcode
> is in effect. Fixed by adding a check of TARGET_VSX_SMALL_INTEGER.

Yuck :-)

> Bootstrap/regtest on powerpc64le-linux with no regressions, ok for
> trunk? The -mvsx-small-integer option/code was introduced in GCC 7 so no
> need for backport.

With this line removed:
> +! { dg-prune-output "-mno-gen-cell-microcode requires -mcpu=cell" }

Okay, thanks!


Segher