[llvm] [X86][GlobalISel] - Legalize And Select of G_FPTOSI/G_SITOFP in X87 mode (PR #137377)

[Pawan Nirpal via llvm-commits]

pawan-nirpal-031 wrote:

Thank you @e-kud for the https://github.com/llvm/llvm-project/pull/130445 which is used by this PR. :) 

https://github.com/llvm/llvm-project/pull/137377