[Bug middle-end/86416] [OpenMP] Offloading - better lto1 error message if mode not supported on offloading target

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86416

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Indeed, the q and L suffixes are swapped, I believe Tobias meant:
--- libgomp/testsuite/libgomp.c/pr86416-1.c.jj  2019-12-18 21:25:02.856131826
+0100
+++ libgomp/testsuite/libgomp.c/pr86416-1.c     2019-12-18 21:28:06.275349386
+0100
@@ -16,7 +16,7 @@ long double foo (long double x)

 int main()
 {
-  long double v = foo (10.0q) - 20.0q;
-  if (v > 1.0e-5 || v < -1.0e-5) abort();
+  long double v = foo (10.0L) - 20.0L;
+  if (v > 1.0e-5L || v < -1.0e-5L) abort();
   return 0;
 }
--- libgomp/testsuite/libgomp.c/pr86416-2.c.jj  2019-12-18 21:25:02.855131842
+0100
+++ libgomp/testsuite/libgomp.c/pr86416-2.c     2019-12-18 21:28:41.708811864
+0100
@@ -16,7 +16,7 @@ __float128 foo(__float128 y)

 int main()
 {
-  __float128 v = foo (5.0L) - 20.0L;
-  if (v > 1.0e-5 || v < -1.0e-5) abort();
+  __float128 v = foo (5.0Q) - 20.0Q;
+  if (v > 1.0e-5Q || v < -1.0e-5Q) abort();
   return 0;
 }

and will test that momentarily.  That said, I think that isn't enough, because
e.g. for x86_64-intelmicemul-linux-gnu offloading the error will not be
emitted.  If nvptx or gcn offloading is configured, it will be, for hsa
offloading no idea.