[llvm-branch-commits] [RISCV] Set DisableLatencyHeuristic to true (PR #115858)

[Philip Reames via llvm-branch-commits]

preames wrote:

Given @michaelmaitland's data, @wangpc-pp  the burden shifts to you to clearly justify which cases this is profitable and figure out how to selectively enable only in profitable cases.  I agree with @michaelmaitland's conclusion that this should not move forward otherwise.  

@michaelmaitland Can you say anything about the magnitude of regression in either case?  I assume they were statistically significant given you mention them, but are these small regressions or largish ones?

https://github.com/llvm/llvm-project/pull/115858