[RISCV] Simplify RISCVAsmBackend::writeNopData(). NFC

llvm-svn: 363486

Author: MaskRay

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

@@ -162,16 +162,12 @@ bool RISCVAsmBackend::writeNopData(raw_ostream &OS, uint64_t Count) const {
     return false;
 
   // The canonical nop on RISC-V is addi x0, x0, 0.
-  uint64_t Nop32Count = Count / 4;
-  for (uint64_t i = Nop32Count; i != 0; --i)
+  for (; Count >= 4; Count -= 4)
     OS.write("\x13\0\0\0", 4);
 
   // The canonical nop on RVC is c.nop.
-  if (HasStdExtC) {
-    uint64_t Nop16Count = (Count - Nop32Count * 4) / 2;
-    for (uint64_t i = Nop16Count; i != 0; --i)
-      OS.write("\x01\0", 2);
-  }
+  if (Count && HasStdExtC)
+    OS.write("\x01\0", 2);
 
   return true;
 }