Hi!
gfc_trans_omp_array_reduction_or_udr creates artificial intrinsics symbol
just for the purpose of expansion of array min/max reductions.
That is something we certainly don't want a -Wsurprising warning on.
Fixed thusly, bootstrapped/regtested on x86_64-linux and i686-linux,
committed to trunk.
2017-11-24 Jakub Jelinek <ja...@redhat.com>
PR fortran/81304
* trans-openmp.c (gfc_trans_omp_array_reduction_or_udr): Set
attr.implicit_type in intrinsic_sym to avoid undesirable warning.
* testsuite/libgomp.fortran/pr81304.f90: New test.
--- gcc/fortran/trans-openmp.c.jj 2017-11-08 16:19:36.000000000 +0100
+++ gcc/fortran/trans-openmp.c 2017-11-24 13:41:41.995610897 +0100
@@ -1623,6 +1623,7 @@ gfc_trans_omp_array_reduction_or_udr (tr
intrinsic_sym.attr.referenced = 1;
intrinsic_sym.attr.intrinsic = 1;
intrinsic_sym.attr.function = 1;
+ intrinsic_sym.attr.implicit_type = 1;
intrinsic_sym.result = &intrinsic_sym;
intrinsic_sym.declared_at = where;
--- libgomp/testsuite/libgomp.fortran/pr81304.f90.jj 2017-11-24
13:50:39.668043753 +0100
+++ libgomp/testsuite/libgomp.fortran/pr81304.f90 2017-11-24
13:50:11.000000000 +0100
@@ -0,0 +1,17 @@
+! PR fortran/81304
+! { dg-do run }
+! { dg-options "-Wsurprising" }
+
+program pr81304
+ integer :: i
+ real, dimension(1:3) :: a, b, c
+ a = 128
+ b = 0
+!$omp parallel do reduction(min: a) reduction(max: b) private (c) ! {
dg-bogus "Type specified for intrinsic function" }
+ do i = 1, 16
+ c = (/ i, i - 5, i + 5 /)
+ a = min (a, c)
+ b = max (b, c)
+ end do
+ if (any (a /= (/ 1, -4, 6 /)) .or. any (b /= (/ 16, 11, 21 /))) call abort
+end
Jakub
