From: Mark Wooding <mdw@distorted.org.uk>
Date: Thu, 7 Nov 2019 01:51:37 +0000 (+0000)
Subject: math/mpx-mul4-amd64-sse2.S: Save a spill by better register allocation.
X-Git-Tag: 2.6.0~14
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/catacomb/commitdiff_plain/f79c8756d054b2979f79d8277affb988c4f39c49?hp=f79c8756d054b2979f79d8277affb988c4f39c49

math/mpx-mul4-amd64-sse2.S: Save a spill by better register allocation.

The Windows code doesn't need to spill r12, because we don't need the
`mi' register after we've loaded and expanded the Montgomery factor.
This doesn't save any stack space because we need 16-byte alignment, but
it does avoid saving and restoring the register.
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