From: "Frank Ch. Eigler" <fche@redhat.com>
To: Paulo Matos <pmatos@linki.tools>
Cc: cgen@sourceware.org
Subject: Re: Macro with same operands is misbehaving
Date: Mon, 08 Apr 2019 01:28:00 -0000 [thread overview]
Message-ID: <20190408012812.GD1874@redhat.com> (raw)
In-Reply-To: <2978b83b-e5eb-434d-f39b-b763782c11cf@linki.tools>
Hi -
> If I define the instruction fsgnj.s and followed by fmv.s macro, during
> disassembly `fsgnj.s` is always chosen, although assembly works fine.
> [...]
> I can't find a way to say: `fmv.s` matches for disassembly but only if
> `f1` == `f2` in `fsgnj.s f0, f1, f2`.
I don't know of a way either, at the cgen .cpu level. But I must ask
... why is this particular disassembly heuristic seem important, given
that those are equivalent? Anyway, it may be possible to handle at
the disassmembler driver level (in C code) even if .cpu/cgen can't
express it.
- FChE
next prev parent reply other threads:[~2019-04-08 1:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-05 14:44 Paulo Matos
2019-04-08 1:28 ` Frank Ch. Eigler [this message]
2019-04-08 6:09 ` Paulo Matos
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