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| author | Paul Thomas <pault@gcc.gnu.org> | 2021-03-13 11:39:57 +0000 |
|---|---|---|
| committer | Paul Thomas <pault@gcc.gnu.org> | 2021-03-13 11:39:57 +0000 |
| commit | 7987beec679898cfa75839551d55ae5234a216bd (patch) | |
| tree | a22adf3ab5449404f386e1d1a8fe256253e945ce /gcc | |
| parent | bbdf59fdbc2ce41ccfac807b15cf3fac7b465a56 (diff) | |
| download | gcc-7987beec679898cfa75839551d55ae5234a216bd.zip gcc-7987beec679898cfa75839551d55ae5234a216bd.tar.gz gcc-7987beec679898cfa75839551d55ae5234a216bd.tar.bz2 | |
Fortran: Fix for class defined operators [PR99125].
2021-03-13 Paul Thomas <pault@gcc.gnu.org>
gcc/fortran
PR fortran/99125
* trans-array.c (gfc_conv_expr_descriptor): For deferred length
length components use the ss_info string length instead of
gfc_get_expr_charlen. Make sure that the deferred string length
is a variable before assigning to it. Otherwise use the expr.
* trans-expr.c (gfc_conv_string_length): Make sure that the
deferred string length is a variable before assigning to it.
gcc/testsuite/
PR fortran/99125
* gfortran.dg/alloc_deferred_comp_1.f90: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/fortran/trans-array.c | 10 | ||||
| -rw-r--r-- | gcc/fortran/trans-expr.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/alloc_deferred_comp_1.f90 | 18 |
3 files changed, 27 insertions, 3 deletions
diff --git a/gcc/fortran/trans-array.c b/gcc/fortran/trans-array.c index 478cddd..be5eb89 100644 --- a/gcc/fortran/trans-array.c +++ b/gcc/fortran/trans-array.c @@ -7670,15 +7670,21 @@ gfc_conv_expr_descriptor (gfc_se *se, gfc_expr *expr) /* Set the string_length for a character array. */ if (expr->ts.type == BT_CHARACTER) { - se->string_length = gfc_get_expr_charlen (expr); + if (deferred_array_component) + se->string_length = ss_info->string_length; + else + se->string_length = gfc_get_expr_charlen (expr); + if (VAR_P (se->string_length) && expr->ts.u.cl->backend_decl == se->string_length) tmp = ss_info->string_length; else tmp = se->string_length; - if (expr->ts.deferred) + if (expr->ts.deferred && VAR_P (expr->ts.u.cl->backend_decl)) gfc_add_modify (&se->pre, expr->ts.u.cl->backend_decl, tmp); + else + expr->ts.u.cl->backend_decl = tmp; } /* If we have an array section, are assigning or passing an array diff --git a/gcc/fortran/trans-expr.c b/gcc/fortran/trans-expr.c index 85c16d7..f6ef5c0 100644 --- a/gcc/fortran/trans-expr.c +++ b/gcc/fortran/trans-expr.c @@ -2485,7 +2485,7 @@ gfc_conv_string_length (gfc_charlen * cl, gfc_expr * expr, stmtblock_t * pblock) se.expr, build_zero_cst (TREE_TYPE (se.expr))); gfc_add_block_to_block (pblock, &se.pre); - if (cl->backend_decl) + if (cl->backend_decl && VAR_P (cl->backend_decl)) gfc_add_modify (pblock, cl->backend_decl, se.expr); else cl->backend_decl = gfc_evaluate_now (se.expr, pblock); diff --git a/gcc/testsuite/gfortran.dg/alloc_deferred_comp_1.f90 b/gcc/testsuite/gfortran.dg/alloc_deferred_comp_1.f90 new file mode 100644 index 0000000..0fc54d5 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/alloc_deferred_comp_1.f90 @@ -0,0 +1,18 @@ +! { dg-do run } +! +! Test the fix for PR99125, where the array reference in the print +! statement caused an ICE because the gimplifier complained about '0' +! being used as an lvalue. +! +! Contributed by Gerhard Steinmetz <gscfq@t-online.de> +! +program p + type t + character(:), allocatable :: a(:) + end type + type(t) :: x + character(8) :: c(3) = ['12 45 78','23 56 89','34 67 90'] + x%a = c + if (any (x%a(2:3) .ne. ['23 56 89','34 67 90'])) stop 1 + if (any (x%a(2:3)(4:5) .ne. ['56','67'])) stop 2 ! Bizarrely this worked. +end |