[X86] Split WriteFSqrt+WriteFDiv into WriteFSqrt64/WriteFSqrt32 + WriteFDiv64/WriteFDiv32 #36257
Description
| Bugzilla Link | 36909 |
| Resolution | FIXED |
| Resolved on | May 23, 2018 08:05 |
| Version | trunk |
| OS | Windows NT |
| Blocks | #36256 |
| Fixed by commit(s) | 331629,331643 |
Extended Description
It's highly unlikely that a target can perform single and double sqrt/div at the same rate, so why do we put them under the same scheduler class?
x87's fdiv instructions should probably be put under WriteFDiv64 and customized if necessary.