From 284c4841d95318ef3cea537d1aece8ec0f60e035 Mon Sep 17 00:00:00 2001
From: Marcel Keller <mks.keller@gmail.com>
Date: Thu, 22 Jul 2021 00:16:16 +1000
Subject: [PATCH] Bug when using @for_range_opt with cint.

---
 Compiler/library.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Compiler/library.py b/Compiler/library.py
index a0be07db..2a186f56 100644
--- a/Compiler/library.py
+++ b/Compiler/library.py
@@ -940,6 +940,7 @@ def map_reduce_single(n_parallel, n_loops, initializer=lambda *x: [],
         use_array = True
     if not util.is_constant(n_loops):
         budget //= 10
+        n_loops = regint(n_loops)
     def decorator(loop_body):
         my_n_parallel = n_parallel
         if isinstance(n_parallel, int):