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From: "bergner at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/98519] rs6000: @pcrel unsupported on this instruction
 error in pveclib
Date: Mon, 03 Oct 2022 22:18:29 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98519

--- Comment #29 from Peter Bergner <bergner at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #28)
> All prefixed addresses, pcrel or R=3D0, are valid always.  The original c=
ode
> is correct.

Well they're only valid when compiling for power10, but we probably don't
generate pcrel addresses unless we're compiling for power10, so ok.


> But lxsd cannot use "m" as constraint anyway.  It needs "wY", and that wi=
ll
> work fine here?

"wY" might be correct for lxsd, but I don't see how using "wY" instead of "=
m"
will stop us from generating a pcrel here, since mem_operand_ds_form() does=
n't
disallow pcrel addresses.  Ie, lxsd is a red herring to the actual bug.=