[llvm] [RISCV] Use vsetvli instead of vlenb in Prologue/Epilogue (PR #113756)

[Craig Topper via llvm-commits]

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@@ -179,7 +179,8 @@ void RISCVRegisterInfo::adjustReg(MachineBasicBlock &MBB,
                                   const DebugLoc &DL, Register DestReg,
                                   Register SrcReg, StackOffset Offset,
                                   MachineInstr::MIFlag Flag,
-                                  MaybeAlign RequiredAlign) const {
+                                  MaybeAlign RequiredAlign,
+                                  bool IsPrologueOrEpilogue) const {
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topperc wrote:

Can we use the FrameSetup/FrameDestroy flag instead adding `IsPrologueOrEpilogue`?

https://github.com/llvm/llvm-project/pull/113756