[llvm-branch-commits] [clang] [flang] [flang][Driver] Add option for real sum reassociation (PR #207377)

[Tarun Prabhu via llvm-branch-commits]

tarunprabhu wrote:

This looks like it is promoting `-enable-split-sum-expression-tree-lowering` to a first-class frontend option, just with a different name. What is the motivation for this? I assume that it is hidden because the original was not exposed either. Do you have a sense of how "useful" this option is for real-world code? Can using it lead to incorrect code being generated? If it is useful, and it is not something that can lead to miscompilation, I don't see why it should even be hidden.

https://github.com/llvm/llvm-project/pull/207377