store parameter on the stack

1 files changed, 2 insertions, 7 deletions

diff --git a/src/codegen.zig b/src/codegen.zig
index 3fed244..0dbf35e 100644
--- a/src/codegen.zig
+++ b/src/codegen.zig
@@ -709,7 +709,6 @@ const ProcedureContext = struct {
     fn genAssignLocal(self: *Self, assign_local: compile.Instr.AssignLocal) !void {
         const src = self.register_allocator.get(assign_local.val);
         try self.freeUnusedVRegs();
-        std.log.debug("{}", .{self.locals.get(assign_local.local).?.stack_offset});
         try self.emit(.sd(.sp, self.locals.get(assign_local.local).?.stack_offset, src));
     }
 
@@ -755,16 +754,12 @@ const ProcedureContext = struct {
         try self.emit(.addi(.sp, .sp, -self.stack_size));
         try self.emit(.sd(.sp, 0, .ra));
 
-        if (self.proc.param_reg) |reg| {
-            const param = try self.register_allocator.allocate(reg);
-            try self.emit(.addi(param, .a0, 0));
+        if (self.proc.param_lvar) |lvar| {
+            try self.emit(.sd(.sp, self.locals.get(lvar).?.stack_offset, .a0));
         }
     }
 
     fn epilogue(self: *Self) !void {
-        if (self.proc.param_reg) |reg| {
-            self.register_allocator.free(reg);
-        }
         try self.emit(.ld(.ra, .sp, 0));
         try self.emit(.addi(.sp, .sp, self.stack_size));
         try self.emit(.jalr(.zero, .ra, 0));