codegen

codegen/src/x86.rs

@@ -0,0 +1,32 @@
+use analysis::{ir::Func, LoweringCx};
+use iced_x86::{code_asm as x, IcedError};
+use parser::Span;
+
+use crate::Result;
+
+trait IcedErrExt {
+    type T;
+    fn sp(self, span: Span) -> Result<Self::T, analysis::Error>;
+}
+
+impl<T> IcedErrExt for Result<T, IcedError> {
+    type T = T;
+
+    fn sp(self, span: Span) -> Result<Self::T, analysis::Error> {
+        self.map_err(|e| analysis::Error::new(e.to_string(), span))
+    }
+}
+
+pub fn generate_func<'cx>(_lcx: &LoweringCx<'cx>, func: &Func<'cx>) -> Result<Vec<u8>> {
+    assert_eq!(func.arity, 0, "arguments??? in MY uwucc????");
+
+    let sp = func.def_span;
+    let mut a = x::CodeAssembler::new(64).sp(sp)?;
+
+    a.xor(x::rax, x::rax).sp(sp)?;
+    a.ret().sp(sp)?;
+
+    let code = a.assemble(0x4000).sp(sp)?;
+
+    Ok(code)
+}