[llvm] [RISCV] Stack clash protection for dynamic alloca (PR #122508)

[Craig Topper via llvm-commits]

================
@@ -639,6 +649,15 @@ void RISCVFrameLowering::allocateStack(MachineBasicBlock &MBB,
   DebugLoc DL;
   const RISCVRegisterInfo *RI = STI.getRegisterInfo();
   const RISCVInstrInfo *TII = STI.getInstrInfo();
+  bool IsRV64 = STI.is64Bit();
+  bool dyn_alloca = false;
----------------
topperc wrote:

Capitalize and use CamelCase instead of underscore

https://github.com/llvm/llvm-project/pull/122508