1 /* { dg-do compile } */
2 /* { dg-options "-O -g -fdump-tree-backprop-details" }  */
3 
4 /* Test a simple reduction loop in which all inputs are sign ops and
5    the consumer doesn't care about the sign.  */
6 #define TEST_FUNCTION(TYPE, SUFFIX)			\
7   TYPE							\
8   test##SUFFIX (TYPE x, TYPE y, TYPE *array, int n)	\
9   {							\
10     x = __builtin_copysign##SUFFIX (x, y);		\
11     for (int i = 0; i < n; ++i)				\
12       x *= -array[i];					\
13     return __builtin_hypot##SUFFIX (x, y);		\
14   }
15 
16 TEST_FUNCTION (float, f)
17 TEST_FUNCTION (double, )
18 TEST_FUNCTION (long double, l)
19 
20 /* { dg-final { scan-tree-dump-times {Deleting[^\n]* = __builtin_copysign} 3 "backprop" } } */
21 /* { dg-final { scan-tree-dump-times {Deleting[^\n]* = -} 3 "backprop" } } */
22