1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr106819.c b/gcc/testsuite/gcc.dg/tree-ssa/pr106819.c
new file mode 100644
index 0000000..1272d4b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr106819.c
@@ -0,0 +1,24 @@
+// { dg-do compile }
+// { dg-options "-O2 -fdump-tree-evrp-details" }
+
+static int isNaN(double x)
+{
+    return x != x;
+}
+
+static double opCmpProper(int lhs, double rhs)
+{
+  return lhs < rhs ? -1.0
+       : lhs > rhs ? 1.0
+       : lhs == rhs ? 0.0
+       : __builtin_nan("");
+}
+
+int main()
+{
+    if (!isNaN(opCmpProper(41, __builtin_nan(""))))
+      __builtin_abort();
+    return 0;
+}
+
+// { dg-final {scan-tree-dump-not "Folds to: 0.0" "evrp" } }