better coroutine codegen, now passing first coro test

we have to use the Suspend block with llvm.coro.end to
return from the coro

1 files changed, 2 insertions, 7 deletions

diff --git a/src/ir.cpp b/src/ir.cpp
index e9f29d1caa..06a23af07c 100644
--- a/src/ir.cpp
+++ b/src/ir.cpp
@@ -6225,19 +6225,14 @@ bool ir_gen(CodeGen *codegen, AstNode *node, Scope *scope, IrExecutable *ir_exec
         ir_build_call(irb, scope, node, nullptr, free_fn, arg_count, args, false, FnInlineAuto, false, nullptr);
 
         IrBasicBlock *resume_block = ir_create_basic_block(irb, scope, "Resume");
-        IrBasicBlock *return_block = ir_create_basic_block(irb, scope, "Return");
-        ir_build_cond_br(irb, scope, node, resume_awaiter, resume_block, return_block, const_bool_false);
+        ir_build_cond_br(irb, scope, node, resume_awaiter, resume_block, irb->exec->coro_suspend_block, const_bool_false);
 
         ir_set_cursor_at_end_and_append_block(irb, resume_block);
         IrInstruction *unwrapped_await_handle_ptr = ir_build_unwrap_maybe(irb, scope, node,
                 irb->exec->coro_awaiter_field_ptr, false);
         IrInstruction *awaiter_handle = ir_build_load_ptr(irb, scope, node, unwrapped_await_handle_ptr);
         ir_build_coro_resume(irb, scope, node, awaiter_handle);
-        ir_build_br(irb, scope, node, return_block, const_bool_false);
-
-        ir_set_cursor_at_end_and_append_block(irb, return_block);
-        IrInstruction *undef = ir_build_const_undefined(irb, scope, node);
-        ir_build_return(irb, scope, node, undef);
+        ir_build_br(irb, scope, node, irb->exec->coro_suspend_block, const_bool_false);
     }
 
     return true;