tree 5a1d328c034ca0a4bd828a3851db05e92965afa3
parent 6a4c0551fbd905397666676142d59af81585c2cb
author Craig Topper <craig.topper@sifive.com> 1659728488 -0700
committer Copybara-Service <copybara-worker@google.com> 1659729194 -0700

[RISCV] Don't use li+sh3add for constants that can use lui+add.

If we're adding a constant that can't use addi we try a few tricks,
one of which is using li+sh3add. We should not do this if lui+add
would work. For example adding 8192. Using sh3add prevents folding
a sext.w to form addw, thus increasing instruction count.

GitOrigin-RevId: 75c64c7c4e40ec9bc16d90fee46353628d08d62d