OPCODE_IS_NAN

src/xenia/cpu/hir/hir_builder.cc

@@ -1362,6 +1362,13 @@ Value* HIRBuilder::IsFalse(Value* value) {
   return i->dest;
 }
 
+Value* HIRBuilder::IsNan(Value* value) {
+  Instr* i = AppendInstr(OPCODE_IS_NAN_info, 0, AllocValue(INT8_TYPE));
+  i->set_src1(value);
+  i->src2.value = i->src3.value = NULL;
+  return i->dest;
+}
+
 Value* HIRBuilder::CompareXX(const OpcodeInfo& opcode, Value* value1,
                              Value* value2) {
   ASSERT_TYPES_EQUAL(value1, value2);

src/xenia/cpu/hir/hir_builder.h

@@ -162,6 +162,7 @@ class HIRBuilder {
   Value* Select(Value* cond, Value* value1, Value* value2);
   Value* IsTrue(Value* value);
   Value* IsFalse(Value* value);
+  Value* IsNan(Value* value);
   Value* CompareEQ(Value* value1, Value* value2);
   Value* CompareNE(Value* value1, Value* value2);
   Value* CompareSLT(Value* value1, Value* value2);

src/xenia/cpu/hir/opcodes.h

@@ -164,6 +164,7 @@ enum Opcode {
   OPCODE_SELECT,
   OPCODE_IS_TRUE,
   OPCODE_IS_FALSE,
+  OPCODE_IS_NAN,
   OPCODE_COMPARE_EQ,
   OPCODE_COMPARE_NE,
   OPCODE_COMPARE_SLT,

src/xenia/cpu/hir/opcodes.inl

@@ -303,6 +303,12 @@ DEFINE_OPCODE(
     OPCODE_SIG_V_V,
     0)
 
+DEFINE_OPCODE(
+    OPCODE_IS_NAN,
+    "is_nan",
+    OPCODE_SIG_V_V,
+    0)
+
 DEFINE_OPCODE(
     OPCODE_COMPARE_EQ,
     "compare_eq",