shader: Implement ISET, add common_funcs

src/shader_recompiler/frontend/maxwell/translate/impl/common_funcs.cpp

@@ -0,0 +1,46 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "shader_recompiler/frontend/maxwell/translate/impl/common_funcs.h"
+
+namespace Shader::Maxwell {
+[[nodiscard]] IR::U1 IntegerCompare(TranslatorVisitor& v, const IR::U32& operand_1,
+                                    const IR::U32& operand_2, ComparisonOp compare_op,
+                                    bool is_signed) {
+    switch (compare_op) {
+    case ComparisonOp::False:
+        return v.ir.Imm1(false);
+    case ComparisonOp::LessThan:
+        return v.ir.ILessThan(operand_1, operand_2, is_signed);
+    case ComparisonOp::Equal:
+        return v.ir.IEqual(operand_1, operand_2);
+    case ComparisonOp::LessThanEqual:
+        return v.ir.ILessThanEqual(operand_1, operand_2, is_signed);
+    case ComparisonOp::GreaterThan:
+        return v.ir.IGreaterThan(operand_1, operand_2, is_signed);
+    case ComparisonOp::NotEqual:
+        return v.ir.INotEqual(operand_1, operand_2);
+    case ComparisonOp::GreaterThanEqual:
+        return v.ir.IGreaterThanEqual(operand_1, operand_2, is_signed);
+    case ComparisonOp::True:
+        return v.ir.Imm1(true);
+    default:
+        throw NotImplementedException("CMP");
+    }
+}
+
+[[nodiscard]] IR::U1 PredicateCombine(TranslatorVisitor& v, const IR::U1& predicate_1,
+                                      const IR::U1& predicate_2, BooleanOp bop) {
+    switch (bop) {
+    case BooleanOp::And:
+        return v.ir.LogicalAnd(predicate_1, predicate_2);
+    case BooleanOp::Or:
+        return v.ir.LogicalOr(predicate_1, predicate_2);
+    case BooleanOp::Xor:
+        return v.ir.LogicalXor(predicate_1, predicate_2);
+    default:
+        throw NotImplementedException("BOP");
+    }
+}
+} // namespace Shader::Maxwell