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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/20030826-1.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/20030826-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/20030826-1.c
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+++ b/gcc-4.9/gcc/testsuite/gcc.dg/20030826-1.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2003 Free Software Foundation.
+
+ Check that constant folding of mathematical expressions doesn't
+ break anything.
+
+ Written by Roger Sayle, 24th August 2003. */
+
+/* { dg-do run } */
+/* { dg-options "-O2 -ffast-math" } */
+
+void abort(void);
+
+double foo(double x)
+{
+ return 12.0/(x*3.0);
+}
+
+double bar(double x)
+{
+ return (3.0/x)*4.0;
+}
+
+int main()
+{
+ if (foo(2.0) != 2.0)
+ abort ();
+
+ if (bar(2.0) != 6.0)
+ abort ();
+
+ return 0;
+}
+