math/mpx-mul4-amd64-sse2.S: Save a spill by better register allocation.
authorMark Wooding <mdw@distorted.org.uk>
Thu, 7 Nov 2019 01:51:37 +0000 (01:51 +0000)
committerMark Wooding <mdw@distorted.org.uk>
Sat, 9 May 2020 19:57:33 +0000 (20:57 +0100)
commitf79c8756d054b2979f79d8277affb988c4f39c49
treefbf9928e0689ada624584eb8920c00e716de8743
parent6966e7a60a87415d3d02230608a98016c03a7a51
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.
math/mpx-mul4-amd64-sse2.S