From 2d48a7b4d0666ad16d03a22d85712617a0849046 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Sat, 9 Jan 2021 03:30:07 -0300
Subject: shader: Initial recompiler work
---
src/shader_recompiler/frontend/ir/condition.h | 60 +++++++++++++++++++++++++++
1 file changed, 60 insertions(+)
create mode 100644 src/shader_recompiler/frontend/ir/condition.h
(limited to 'src/shader_recompiler/frontend/ir/condition.h')
diff --git a/src/shader_recompiler/frontend/ir/condition.h b/src/shader_recompiler/frontend/ir/condition.h
new file mode 100644
index 0000000000..52737025c9
--- /dev/null
+++ b/src/shader_recompiler/frontend/ir/condition.h
@@ -0,0 +1,60 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <string>
+#include <compare>
+
+#include <fmt/format.h>
+
+#include "common/common_types.h"
+#include "shader_recompiler/frontend/ir/flow_test.h"
+#include "shader_recompiler/frontend/ir/pred.h"
+
+namespace Shader::IR {
+
+class Condition {
+public:
+ Condition() noexcept = default;
+
+ explicit Condition(FlowTest flow_test_, Pred pred_, bool pred_negated_ = false) noexcept
+ : flow_test{static_cast<u16>(flow_test_)}, pred{static_cast<u8>(pred_)},
+ pred_negated{pred_negated_ ? u8{1} : u8{0}} {}
+
+ explicit Condition(Pred pred_, bool pred_negated_ = false) noexcept
+ : Condition(FlowTest::T, pred_, pred_negated_) {}
+
+ Condition(bool value) : Condition(Pred::PT, !value) {}
+
+ auto operator<=>(const Condition&) const noexcept = default;
+
+ [[nodiscard]] IR::FlowTest FlowTest() const noexcept {
+ return static_cast<IR::FlowTest>(flow_test);
+ }
+
+ [[nodiscard]] std::pair<IR::Pred, bool> Pred() const noexcept {
+ return {static_cast<IR::Pred>(pred), pred_negated != 0};
+ }
+
+private:
+ u16 flow_test;
+ u8 pred;
+ u8 pred_negated;
+};
+
+std::string NameOf(Condition condition);
+
+} // namespace Shader::IR
+
+template <>
+struct fmt::formatter<Shader::IR::Condition> {
+ constexpr auto parse(format_parse_context& ctx) {
+ return ctx.begin();
+ }
+ template <typename FormatContext>
+ auto format(const Shader::IR::Condition& cond, FormatContext& ctx) {
+ return fmt::format_to(ctx.out(), "{}", Shader::IR::NameOf(cond));
+ }
+};
--
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