1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr39824.c b/gcc/testsuite/gcc.c-torture/compile/pr39824.c
new file mode 100644
index 000000000..362fb17b8
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr39824.c
@@ -0,0 +1,26 @@
+static const double internalEndianMagic = 7.949928895127363e-275;
+static const unsigned char ieee_754_mantissa_mask[] = { 0x00, 0x0F, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF };
+static inline int 
+trio_isnan (double number)
+{
+  int has_mantissa = 0;
+  unsigned int i;
+  unsigned char current;
+  for (i = 0; i < (unsigned int)sizeof(double); i++)
+    {
+      current = ((unsigned char *)&number)[(((unsigned char
+					      *)&internalEndianMagic)[7-(i)])];
+      has_mantissa |= (current & ieee_754_mantissa_mask[i]);
+    }
+  return has_mantissa;
+}
+void
+xmlXPathEqualNodeSetFloat(int nodeNr, double v)
+{
+  int i;
+  for (i=0; i<nodeNr; i++)
+    if (!trio_isnan(v))
+      break;
+}
+