glsl: Rework variable allocator to allow for variable reuse

1 files changed, 0 insertions, 84 deletions

diff --git a/src/shader_recompiler/backend/glsl/reg_alloc.h b/src/shader_recompiler/backend/glsl/reg_alloc.h
deleted file mode 100644
index 6c293f9d1..000000000
--- a/src/shader_recompiler/backend/glsl/reg_alloc.h
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright 2021 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <bitset>
-#include <vector>
-
-#include "common/bit_field.h"
-#include "common/common_types.h"
-
-namespace Shader::IR {
-class Inst;
-class Value;
-enum class Type;
-} // namespace Shader::IR
-
-namespace Shader::Backend::GLSL {
-enum class Type : u32 {
-    U1,
-    F16x2,
-    S32,
-    U32,
-    F32,
-    S64,
-    U64,
-    F64,
-    U32x2,
-    F32x2,
-    U32x3,
-    F32x3,
-    U32x4,
-    F32x4,
-    Void,
-};
-
-struct Id {
-    union {
-        u32 raw;
-        BitField<0, 1, u32> is_valid;
-        BitField<1, 1, u32> is_long;
-        BitField<2, 1, u32> is_spill;
-        BitField<3, 1, u32> is_condition_code;
-        BitField<4, 1, u32> is_null;
-        BitField<5, 27, u32> index;
-    };
-
-    bool operator==(Id rhs) const noexcept {
-        return raw == rhs.raw;
-    }
-    bool operator!=(Id rhs) const noexcept {
-        return !operator==(rhs);
-    }
-};
-static_assert(sizeof(Id) == sizeof(u32));
-
-class RegAlloc {
-public:
-    std::string Define(IR::Inst& inst);
-    std::string Define(IR::Inst& inst, Type type);
-    std::string Define(IR::Inst& inst, IR::Type type);
-
-    std::string Consume(const IR::Value& value);
-    std::string Consume(IR::Inst& inst);
-
-    std::string GetGlslType(Type type);
-    std::string GetGlslType(IR::Type type);
-
-    size_t num_used_registers{};
-    std::vector<std::string> reg_types;
-
-private:
-    static constexpr size_t NUM_REGS = 4096;
-
-    Type RegType(IR::Type type);
-    Id Alloc();
-    void Free(Id id);
-
-    std::bitset<NUM_REGS> register_use{};
-    std::bitset<NUM_REGS> register_defined{};
-};
-
-} // namespace Shader::Backend::GLSL