[llvm-branch-commits] [llvm] release/18.x: [X86]: Add FPCW as a rounding control register (PR #84058)

[Phoebe Wang via llvm-branch-commits]

phoebewang wrote:

I don't think it worth backport. The x87 usage is not very common nowadays, and the problem is lasting for a while.
I'd suggest not do the backport considering it may have sideeffect in the isCall change.

https://github.com/llvm/llvm-project/pull/84058