src/hotspot/cpu/x86/macroAssembler_x86.cpp

@@ -5743,18 +5743,20 @@
     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] = ' ';