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[PATCH, alpha]: Improve sysdeps/alpha/divqu.S and sysdeps/alpha/remqu.S

From: Uros Bizjak <ubizjak at gmail dot com>
To: Richard Henderson <rth at twiddle dot net>
Cc: libc-alpha at sourceware dot org
Date: Wed, 27 Feb 2019 20:54:14 +0100
Subject: [PATCH, alpha]: Improve sysdeps/alpha/divqu.S and sysdeps/alpha/remqu.S
References: <CAFULd4ZzARNW3Z-XEVbpG9KS6-PY0nzzfzFs3iOHJ9fADsWU0w@mail.gmail.com> <4b9fbc74-e05e-da71-5e8b-61af289a9f70@twiddle.net>

Attached patch improves and unifies sysdeps/alpha/divqu.S and
sysdeps/alpha/remqu.S.

* sysdeps/alpha/divqu.S (__divqu): Move save of $f0 and excb after
conditional branch to DIVBYZERO.  Fix unwind info.
* sysdeps/alpha/remqu.S (__remqu): Move saves of $f0, $f1, $f2 and
excb after conditional branch to $powerof2.  Add missing unop
instructions and .align directives and reorder instructions to match
__divqu.

Signed-off-by: Uroš Bizjak <ubizjak@gmail.com>

Patch was tested on alphaev68-linux-gnu, also by running complete
libgo testsuite.

Uros.

Attachment: a.diff.txt
Description: Text document

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