llvm-project

ead88c78 - [RISCV] Prefer (select (x < 0), y, z) -> x >> (XLEN - 1) & (y - z) + z even with Zicond. (#125772)

[RISCV] Prefer (select (x < 0), y, z) -> x >> (XLEN - 1) & (y - z) + z even with Zicond. (#125772) The Zicond version of this requires an li instruction and an additional register. Without Zicond we match this in a DAGCombine on RISCVISD::SELECT_CC. This PR has 2 commits. I'll pre-commit the test change if this looks good.