Hi!
This patch fixes ICE on safelen(0). Not adding a warning for this in the
FE, as it has been added already on gomp-4_5-branch, so when it is merged,
the testcase will just need to be adjusted for the added warning.
Tested on x86_64-linux, committed to trunk so far.
2016-09-08 Jakub Jelinek <ja...@redhat.com>
PR fortran/77516
* omp-low.c (lower_rec_simd_input_clauses): Use max_vf for non-positive
OMP_CLAUSE_SAFELEN_EXPR.
* gfortran.dg/gomp/pr77516.f90: New test.
--- gcc/omp-low.c.jj 2016-09-06 20:00:33.000000000 +0200
+++ gcc/omp-low.c 2016-09-08 11:35:42.960174529 +0200
@@ -4302,7 +4302,9 @@ lower_rec_simd_input_clauses (tree new_v
{
tree c = find_omp_clause (gimple_omp_for_clauses (ctx->stmt),
OMP_CLAUSE_SAFELEN);
- if (c && TREE_CODE (OMP_CLAUSE_SAFELEN_EXPR (c)) != INTEGER_CST)
+ if (c
+ && (TREE_CODE (OMP_CLAUSE_SAFELEN_EXPR (c)) != INTEGER_CST
+ || tree_int_cst_sgn (OMP_CLAUSE_SAFELEN_EXPR (c)) != 1))
max_vf = 1;
else if (c && compare_tree_int (OMP_CLAUSE_SAFELEN_EXPR (c),
max_vf) == -1)
--- gcc/testsuite/gfortran.dg/gomp/pr77516.f90.jj 2016-09-08
12:06:07.363581303 +0200
+++ gcc/testsuite/gfortran.dg/gomp/pr77516.f90 2016-09-08 11:59:33.000000000
+0200
@@ -0,0 +1,12 @@
+! PR fortran/77516
+! { dg-do compile }
+
+program pr77516
+ integer :: i, x
+ x = 0
+!$omp simd safelen(0) reduction(+:x)
+ do i = 1, 8
+ x = x + 1
+ end do
+ print *, x
+end
Jakub
