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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/builtins-17.c
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diff --git a/gcc/testsuite/gcc.dg/builtins-17.c b/gcc/testsuite/gcc.dg/builtins-17.c
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+/* Copyright (C) 2003 Free Software Foundation.
+
+ Check that constant folding of built-in math functions doesn't
+ break anything and produces the expected results.
+
+ Written by Roger Sayle, 25th May 2003. */
+
+/* { dg-do link } */
+/* { dg-options "-O2 -ffast-math" } */
+
+extern void link_error(void);
+
+extern double exp(double);
+extern double atan(double);
+
+int main()
+{
+ if (exp (1.0) < 2.71 || exp (1.0) > 2.72)
+ link_error ();
+ if (exp (2.0) < 7.38 || exp (2.0) > 7.39)
+ link_error ();
+ if (exp (-2.0) < 0.13 || exp (-2.0) > 0.14)
+ link_error ();
+ if (atan (1.0) < 0.78 || atan (1.0) > 0.79)
+ link_error ();
+
+ return 0;
+}
+