3ec0c5c7fe
Previously,
3d6b53980c
propagates FMF from fcmp to avoid performance regressions. With the help
of https://github.com/llvm/llvm-project/pull/139861,
https://github.com/llvm/llvm-project/pull/141015, and
https://github.com/llvm/llvm-project/pull/141914, we can still convert
SPF into fabs/minnum/maxnum intrinsics even if some flags are missing.
This patch propagates FMF from select to address the long-standing
issue.
Closes https://github.com/llvm/llvm-project/issues/140994.