A mechanism to identify/forbid/"rewrite" non-temporal instructions (and other)

src/trusted/validator_ragel/validator_x86_32.rl

Index: src/trusted/validator_ragel/validator_x86_32.rl
diff --git a/src/trusted/validator_ragel/validator_x86_32.rl b/src/trusted/validator_ragel/validator_x86_32.rl
index d3ec12f61b2770277cdcc3a17347a049356a8b45..c55269d0f6fc539c42f111a9fb14d8f28a198899 100644
--- a/src/trusted/validator_ragel/validator_x86_32.rl
+++ b/src/trusted/validator_ragel/validator_x86_32.rl
@@ -58,6 +58,10 @@
   include cpuid_actions
     "native_client/src/trusted/validator_ragel/parse_instruction.rl";
 
+  action unsupported_instruction {
+    instruction_info_collected |= UNSUPPORTED_INSTRUCTION;
+  }
+
   include decode_x86_32 "validator_x86_32_instruction.rl";
 
   special_instruction =