src/hotspot/cpu/x86/macroAssembler_x86.cpp

*** 5743,5760 ****
--- 5743,5762 ----
      switch (rounding_control()) {
        case 0: rc = "round near"; break;
        case 1: rc = "round down"; break;
        case 2: rc = "round up  "; break;
        case 3: rc = "chop      "; break;
+       default: ShouldNotReachHere(); return;
      };
      // precision control
      const char* pc;
      switch (precision_control()) {
        case 0: pc = "24 bits "; break;
        case 1: pc = "reserved"; break;
        case 2: pc = "53 bits "; break;
        case 3: pc = "64 bits "; break;
+       default: ShouldNotReachHere(); return;
      };
      // flags
      char f[9];
      f[0] = ' ';
      f[1] = ' ';