[RISCV][MC] Set Ra for PseudoCALL in if-else clause

Author: jaidTw

llvm/lib/Target/RISCV/MCTargetDesc/RISCVMCCodeEmitter.cpp

@@ -125,11 +125,12 @@ void RISCVMCCodeEmitter::expandFunctionCall(const MCInst &MI,
   MCRegister Ra;
   if (MI.getOpcode() == RISCV::PseudoTAIL) {
     Func = MI.getOperand(0);
-    Ra = RISCV::X6;
     // For Zicfilp, PseudoTAIL should be expanded to a software guarded branch.
     // It means to use t2(x7) as rs1 of JALR to expand PseudoTAIL.
     if (STI.hasFeature(RISCV::FeatureStdExtZicfilp))
       Ra = RISCV::X7;
+    else
+      Ra = RISCV::X6;
   } else if (MI.getOpcode() == RISCV::PseudoCALLReg) {
     Func = MI.getOperand(1);
     Ra = MI.getOperand(0).getReg();