1 files changed, 18 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/dremf-type-compat-3.c b/gcc-4.9/gcc/testsuite/gcc.dg/dremf-type-compat-3.c
new file mode 100644
index 000000000..3934a64e1
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/dremf-type-compat-3.c
@@ -0,0 +1,18 @@
+/* Test for bogus diagnostics for dremf definition.  Although this
+   definition is formally incorrect in ISO C, a GNU extension permits
+   a prototype followed by unpromoted types in a function definition,
+   so it should be permitted when the function is built in.  Bug
+   16666.  Test with -pedantic-errors, where the problem should still
+   be diagnosed.  */
+/* { dg-do compile } */
+/* { dg-options "-pedantic-errors" } */
+
+float dremf (float, float); /* { dg-error "prototype declaration" } */
+
+float
+dremf (x, y)
+     float x; /* { dg-error "promoted argument 'x' doesn't match prototype" } */
+     float y; /* { dg-error "promoted argument 'y' doesn't match prototype" } */
+{
+  return x + y;
+}