[clang] [llvm] Implement operand bundles for floating-point operations (PR #109798)

[Serge Pavlov via cfe-commits]

spavloff wrote:

PR https://github.com/llvm/llvm-project/pull/118253 demonstrates changes required to upgrade an intrinsic (`trunc` in this case) to using FP operand bundles. 

https://github.com/llvm/llvm-project/pull/109798