1 files changed, 21 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/torture/c99-contract-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/torture/c99-contract-1.c
new file mode 100644
index 000000000..602308308
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/torture/c99-contract-1.c
@@ -0,0 +1,21 @@
+/* Test floating-point contraction occurs only within source language
+   expressions.  */
+/* { dg-do run } */
+/* { dg-options "-std=c99 -pedantic-errors" } */
+
+extern void abort (void);
+extern void exit (int);
+
+volatile float a = 1 + 0x1p-23f, b = 1 - 0x1p-23f, c = -1;
+
+int
+main (void)
+{
+  float av = a, bv = b, cv = c;
+  float p = av * bv;
+  float r = p + cv;
+  if (r == 0)
+    exit (0);
+  else
+    abort ();
+}