テストパスを追加

.gitignore

@@ -4,3 +4,4 @@
 *.so
 *.dll
 *.o
+*.ll

Makefile

+CXX := g++
+
+CXXFLAGS := \
+	-std=c++17 \
+	-Wall \
+	-Wextra \
+	-pedantic \
+	-Werror \
+	$(shell llvm-config-6.0 --cxxflags)
+
+LDFLAGS := \
+	$(shell llvm-config-6.0 --ldflags) \
+	$(shell llvm-config-6.0 --libs)
+
+.PHONY: all clean
+
+all: testpass.so
+
+testpass.so: src/nykk/TestPass.o
+	${CXX} ${CXXFLAGS} -shared -o $@ $< ${LDFLAGS}
+
+src/nykk/TestPass.o: src/nykk/TestPass.cpp src/nykk/TestPass.hpp
+
+clean:
+	${RM} *.so src/*/*.o

src/nykk/TestPass.cpp

+#include "TestPass.hpp"
+
+#include <llvm/IR/Function.h>
+#include <llvm/IR/Module.h>
+#include <llvm/Support/raw_ostream.h>
+
+// Register pass.
+llvm::RegisterPass<nykk::TestPass> g_test_pass {
+	"testpass",
+	"Test pass",
+};
+
+namespace nykk
+{
+	// Pass id.
+	char TestPass::ID;
+
+	// Constructor of TestPass.
+	TestPass::TestPass()
+		: FunctionPass(ID)
+	{
+	}
+
+	// Initialization before pass is run
+	bool TestPass::doInitialization(llvm::Module& module)
+	{
+		llvm::errs() << __FUNCTION__ << " : " << module.getName() << "\n";
+
+		return false;
+	}
+
+	// Finalization after pass is run
+	bool TestPass::doFinalization(llvm::Module& module)
+	{
+		llvm::errs() << __FUNCTION__ << " : " << module.getName() << "\n";
+
+		return false;
+	}
+
+	// Processes functions.
+	bool TestPass::runOnFunction(llvm::Function& func)
+	{
+		llvm::errs() << __FUNCTION__ << " : " << func.getName() << "\n";
+
+		return false;
+	}
+}

src/nykk/TestPass.hpp

+#ifndef INCLUDE_NYKK_TESTPASS_HPP
+#define INCLUDE_NYKK_TESTPASS_HPP
+
+#include <llvm/Pass.h>
+
+namespace nykk
+{
+	class TestPass
+		: public llvm::FunctionPass
+	{
+	public:
+		static char ID; // For LLVM.
+
+		explicit TestPass();
+
+		// Uncopyable, unmovable.
+		TestPass(const TestPass&) =delete;
+		TestPass(TestPass&&) =delete;
+
+		TestPass& operator=(const TestPass&) =delete;
+		TestPass& operator=(TestPass&&) =delete;
+
+		~TestPass() =default;
+
+		/**
+		 * @brief      Initialization before pass is run.
+		 *
+		 * @param      module  Reference of the module.
+		 *
+		 * @return     ?
+		 */
+		bool doInitialization(llvm::Module& module) override;
+
+		/**
+		 * @brief      Finalization after pass is run.
+		 *
+		 * @param      module  Reference of the module.
+		 *
+		 * @return     ?
+		 */
+		bool doFinalization(llvm::Module& module) override;
+
+		/**
+		 * @brief      Processes functions.
+		 *
+		 * @param      func  Reference to the function.
+		 *
+		 * @return     `true` if the function was changed.
+		 */
+		bool runOnFunction(llvm::Function& func) override;
+	};
+}
+
+#endif

test/fizzbuzz.c

+#include <stdio.h>
+
+int main(void)
+{
+	for (int i = 1; i <= 50; i++)
+	{
+		if (i % (3 * 5) == 0)
+		{
+			printf("Fizz Buzz\n");
+		}
+		else if (i % 3 == 0)
+		{
+			printf("Fizz\n");
+		}
+		else if (i % 5 == 0)
+		{
+			printf("Buzz\n");
+		}
+		else
+		{
+			printf("%d\n", i);
+		}
+	}
+}