actually compiles and does stuff now

src/ir/lower/func.rs

@@ -0,0 +1,41 @@
+use super::*;
+use crate::compiler::arch::riscv64::Reg;
+use arch::riscv64::RV64Instruction;
+use std::collections::HashMap;
+
+#[derive(Debug)]
+pub struct IRLFunction {
+    pub name: String,
+    pub addr: AddrID,
+    pub instructions: Vec<IRLInstruction>,
+    pub stack: HashMap<VarID, usize>,
+    pub args: Vec<(VarID, usize)>,
+}
+
+#[derive(Debug)]
+pub enum IRLInstruction {
+    Mv {
+        dest: VarID,
+        src: VarID,
+    },
+    Ref {
+        dest: VarID,
+        src: VarID,
+    },
+    LoadAddr {
+        dest: VarID,
+        src: AddrID,
+    },
+    Call {
+        dest: VarID,
+        f: AddrID,
+        args: Vec<(VarID, usize)>,
+    },
+    AsmBlock {
+        instructions: Vec<RV64Instruction>,
+        args: Vec<(Reg, VarID)>,
+    },
+    Ret {
+        src: VarID,
+    },
+}