[clang] [llvm] [Clang][Driver][LLVM] Add -fno-inline-functions-called-once; expose p… (PR #160343)

[Fangrui Song via llvm-commits]

MaskRay wrote:

While GCC has -finline-functions-called-once, we don't blindly copy every option it supports. Please provide clear, technical justification. The description looks AI-generated, making it difficult to assess its value.

https://github.com/llvm/llvm-project/pull/160343