optimise min/max([...]) with sequence literal argument

Cython/Compiler/Optimize.py

@@ -1554,8 +1554,11 @@ class EarlyReplaceBuiltinCalls(Visitor.EnvTransform):
         """Replace min(a,b,...) and max(a,b,...) by explicit comparison code.
         """
         if len(args) <= 1:
-            # leave this to Python
-            return node
+            if len(args) == 1 and args[0].is_sequence_constructor:
+                args = args[0].args
+            else:
+                # leave this to Python
+                return node
 
         cascaded_nodes = list(map(UtilNodes.ResultRefNode, args[1:]))
 

tests/run/builtin_min_max.pyx

@@ -20,6 +20,40 @@ def min3(a,b,c):
     """
     return min(a,b,c)
 
+@cython.test_assert_path_exists("//CondExprNode")
+@cython.test_fail_if_path_exists("//SimpleCallNode")
+def min3_list(a,b,c):
+    """
+    >>> min3_list(1,2,3)
+    1
+    >>> min3_list(2,3,1)
+    1
+    >>> min3_list(2,1,3)
+    1
+    >>> min3_list(3,1,2)
+    1
+    >>> min3_list(3,2,1)
+    1
+    """
+    return min([a,b,c])
+
+@cython.test_assert_path_exists("//CondExprNode")
+@cython.test_fail_if_path_exists("//SimpleCallNode")
+def min3_tuple(a,b,c):
+    """
+    >>> min3_tuple(1,2,3)
+    1
+    >>> min3_tuple(2,3,1)
+    1
+    >>> min3_tuple(2,1,3)
+    1
+    >>> min3_tuple(3,1,2)
+    1
+    >>> min3_tuple(3,2,1)
+    1
+    """
+    return min((a,b,c))
+
 @cython.test_assert_path_exists("//CondExprNode")
 @cython.test_fail_if_path_exists("//SimpleCallNode")
 def min3_typed(int a, int b, int c):