From 4ae73957c92d2141e161ad97cd2baa9f88fe7647 Mon Sep 17 00:00:00 2001
From: Atirut Wattanamongkol <atirut.wattanamongkol@gmail.com>
Date: Tue, 29 Oct 2024 10:42:38 +0700
Subject: [PATCH] Remove ZIR

---
 src/CMakeLists.txt                  |  1 -
 src/zir/CMakeLists.txt              |  5 -----
 src/zir/README.md                   |  2 --
 src/zir/include/zir/instruction.hpp | 31 -----------------------------
 src/zir/include/zir/module.hpp      | 25 -----------------------
 src/zir/instruction.cpp             | 14 -------------
 src/zir/module.cpp                  |  8 --------
 7 files changed, 86 deletions(-)
 delete mode 100644 src/zir/CMakeLists.txt
 delete mode 100644 src/zir/README.md
 delete mode 100644 src/zir/include/zir/instruction.hpp
 delete mode 100644 src/zir/include/zir/module.hpp
 delete mode 100644 src/zir/instruction.cpp
 delete mode 100644 src/zir/module.cpp

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9a11f929..b1b4271f 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,3 +1,2 @@
 add_subdirectory("cc")
-add_subdirectory("zir")
 add_subdirectory("sdcc-wrapper")
diff --git a/src/zir/CMakeLists.txt b/src/zir/CMakeLists.txt
deleted file mode 100644
index 95e8dbb3..00000000
--- a/src/zir/CMakeLists.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-add_library(zir STATIC
-    instruction.cpp
-    module.cpp
-)
-target_include_directories(zir PUBLIC include)
diff --git a/src/zir/README.md b/src/zir/README.md
deleted file mode 100644
index 9f381b41..00000000
--- a/src/zir/README.md
+++ /dev/null
@@ -1,2 +0,0 @@
-# ZIR
-This helper library is independent of the main compiler in hopes that it may be useful to other projects. It implements a simple TAC IR based on TACKY from Nora Sandler's [Writing a C Compiler](https://play.google.com/store/books/details/Nora_Sandler_Writing_a_C_Compiler?id=6StmEAAAQBAJ) book.
diff --git a/src/zir/include/zir/instruction.hpp b/src/zir/include/zir/instruction.hpp
deleted file mode 100644
index dc2f28da..00000000
--- a/src/zir/include/zir/instruction.hpp
+++ /dev/null
@@ -1,31 +0,0 @@
-#pragma once
-#include <optional>
-#include <string>
-#include <variant>
-#include <vector>
-
-namespace ZIR {
-
-typedef std::variant<std::string, char, int> Value;
-
-// A three-address ZIR instruction
-struct Instruction {
-enum Operation {
-    // Return a value.
-    RETURN,
-
-    // Complement a value.
-    COMPLEMENT,
-    // Negate a value.
-    NEGATE,
-};
-
-  Operation operation;
-  std::optional<Value> result;
-  std::vector<Value> operands;
-
-  Instruction(Operation operation);
-  Instruction(Operation operation, const Value &result);
-  Instruction &operator+=(const Value &operand);
-};
-} // namespace ZIR
diff --git a/src/zir/include/zir/module.hpp b/src/zir/include/zir/module.hpp
deleted file mode 100644
index 5b62b35c..00000000
--- a/src/zir/include/zir/module.hpp
+++ /dev/null
@@ -1,25 +0,0 @@
-#pragma once
-#include "instruction.hpp"
-#include <string>
-#include <vector>
-
-namespace ZIR {
-
-struct Module {
-  struct Symbol {
-    std::string name;
-    virtual ~Symbol() = default;
-  };
-
-  struct Function : public Symbol {
-    std::vector<Instruction> instructions;
-    // std::vector<std::unique_ptr<Symbol>> locals;
-
-    Function &operator+=(const Instruction &instruction);
-  };
-
-//   std::vector<std::unique_ptr<Symbol>> symbols;
-  std::vector<Function> functions;
-};
-
-} // namespace ZIR
diff --git a/src/zir/instruction.cpp b/src/zir/instruction.cpp
deleted file mode 100644
index 378252b4..00000000
--- a/src/zir/instruction.cpp
+++ /dev/null
@@ -1,14 +0,0 @@
-#include <zir/instruction.hpp>
-
-using namespace std;
-using namespace ZIR;
-
-Instruction::Instruction(Operation operation) : operation(operation) {}
-
-Instruction::Instruction(Operation operation, const Value &result)
-    : operation(operation), result(result) {}
-
-Instruction &Instruction::operator+=(const Value &operand) {
-  operands.push_back(operand);
-  return *this;
-}
diff --git a/src/zir/module.cpp b/src/zir/module.cpp
deleted file mode 100644
index 34c2dc7c..00000000
--- a/src/zir/module.cpp
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <zir/module.hpp>
-
-using namespace ZIR;
-
-Module::Function &Module::Function::operator+=(const Instruction &instruction) {
-  instructions.push_back(instruction);
-  return *this;
-}