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package org.shedlang.compiler.backends.llvm;
import org.shedlang.compiler.backends.llvm.ir.LlvmIrSerializer;
import org.shedlang.compiler.backends.llvm.ir.ast.LlvmModule;
import org.shedlang.compiler.backends.paths.PartialTargetPath;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import static org.shedlang.compiler.util.processes.ProcessRunner.runInheritIo;
public class LlvmCompiler {
private LlvmCompiler() {}
public static Path compileLlvmModule(
LlvmModule llvmModule,
PartialTargetPath targetPath
) throws IOException, InterruptedException {
var llvmModulePath = targetPath.withExtension(".ll");
Files.createDirectories(llvmModulePath.getParent());
var fileWriter = new FileWriter(llvmModulePath.toFile(), StandardCharsets.UTF_8);
try (var writer = new BufferedWriter(fileWriter)) {
LlvmIrSerializer.serializeModule(llvmModule, writer);
}
var objectPath = targetPath.withExtension(".o");
runLlvmCompiler(llvmModulePath, objectPath);
return objectPath;
}
private static void runLlvmCompiler(Path llvmModulePath, Path objectPath) throws IOException, InterruptedException {
runInheritIo(List.of(
"llc-23", llvmModulePath.toString(),
"-filetype", "obj",
"-relocation-model", "pic",
"-o", objectPath.toString()
));
}
}
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