llvm-project

24bf4aea - [RISCV][llvm] Handle vector callee saved register correctly (#149467)

[RISCV][llvm] Handle vector callee saved register correctly (#149467) In TargetFrameLowering::determineCalleeSaves, any vector register is marked as saved if any of its subregister is clobbered, this is not correct in vector registers. We only want the vector register to be marked as saved only if all of its subregisters are clobbered. This patch handles vector callee saved registers in target hook.