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| author | Paul Thomas <pault@gcc.gnu.org> | 2018-09-12 18:33:13 +0000 |
|---|---|---|
| committer | Paul Thomas <pault@gcc.gnu.org> | 2018-09-12 18:33:13 +0000 |
| commit | 3b582f1f3b7e19f050a219117e0d1af0e9a76af4 (patch) | |
| tree | c9348caadcc91e4c780f6e543070c5a33405dc15 /gcc/fortran/trans-expr.c | |
| parent | c0cbe5260fab673f7cd755df2226422b88b28837 (diff) | |
| download | gcc-3b582f1f3b7e19f050a219117e0d1af0e9a76af4.zip gcc-3b582f1f3b7e19f050a219117e0d1af0e9a76af4.tar.gz gcc-3b582f1f3b7e19f050a219117e0d1af0e9a76af4.tar.bz2 | |
re PR fortran/87284 (Allocation of class arrays with mold results in "conditional jump or move depends on uninitialised value")
2018-09-12 Paul Thomas <pault@gcc.gnu.org>
PR fortran/87284
* trans-expr.c (gfc_trans_class_init_assign): Access to
to array elements of the dynamic type requires that the array
reference be added to the class expression and not the _data
component, unlike scalar expressions.
2018-09-12 Paul Thomas <pault@gcc.gnu.org>
PR fortran/87284
* gfortran.dg/allocate_with_mold_2.f90: New test.
From-SVN: r264249
Diffstat (limited to 'gcc/fortran/trans-expr.c')
| -rw-r--r-- | gcc/fortran/trans-expr.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/fortran/trans-expr.c b/gcc/fortran/trans-expr.c index 56ce98c..2596b8e 100644 --- a/gcc/fortran/trans-expr.c +++ b/gcc/fortran/trans-expr.c @@ -1505,7 +1505,6 @@ gfc_trans_class_init_assign (gfc_code *code) gfc_start_block (&block); lhs = gfc_copy_expr (code->expr1); - gfc_add_data_component (lhs); rhs = gfc_copy_expr (code->expr1); gfc_add_vptr_component (rhs); @@ -1523,11 +1522,15 @@ gfc_trans_class_init_assign (gfc_code *code) { gfc_array_spec *tmparr = gfc_get_array_spec (); *tmparr = *CLASS_DATA (code->expr1)->as; + /* Adding the array ref to the class expression results in correct + indexing to the dynamic type. */ gfc_add_full_array_ref (lhs, tmparr); tmp = gfc_trans_class_array_init_assign (rhs, lhs, code->expr1); } else { + /* Scalar initialization needs the _data component. */ + gfc_add_data_component (lhs); sz = gfc_copy_expr (code->expr1); gfc_add_vptr_component (sz); gfc_add_size_component (sz); |