From db1da3d37e33b0adcd7fed68cfdb96e8ee265ccf Mon Sep 17 00:00:00 2001 From: Harald Anlauf Date: Sat, 6 Nov 2021 19:42:01 +0100 Subject: [PATCH] Fortran: error recovery on rank mismatch of array and its initializer gcc/fortran/ChangeLog: PR fortran/102715 * decl.c (add_init_expr_to_sym): Reject rank mismatch between array and its initializer. gcc/testsuite/ChangeLog: PR fortran/102715 * gfortran.dg/pr68019.f90: Adjust error message. * gfortran.dg/pr102715.f90: New test. (cherry picked from commit df2135e88a8f78c853b35246ad426b01b6d08378) --- gcc/fortran/decl.c | 8 ++++++++ gcc/testsuite/gfortran.dg/pr102715.f90 | 13 +++++++++++++ gcc/testsuite/gfortran.dg/pr68019.f90 | 2 +- 3 files changed, 22 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gfortran.dg/pr102715.f90 diff --git a/gcc/fortran/decl.c b/gcc/fortran/decl.c index 982e3e9d9ac7..d2b667e45c6d 100644 --- a/gcc/fortran/decl.c +++ b/gcc/fortran/decl.c @@ -2023,6 +2023,14 @@ add_init_expr_to_sym (const char *name, gfc_expr **initp, locus *var_locus) } } + if (sym->attr.flavor == FL_PARAMETER && sym->attr.dimension && sym->as + && sym->as->rank && init->rank && init->rank != sym->as->rank) + { + gfc_error ("Rank mismatch of array at %L and its initializer " + "(%d/%d)", &sym->declared_at, sym->as->rank, init->rank); + return false; + } + /* If sym is implied-shape, set its upper bounds from init. */ if (sym->attr.flavor == FL_PARAMETER && sym->attr.dimension && sym->as->type == AS_IMPLIED_SHAPE) diff --git a/gcc/testsuite/gfortran.dg/pr102715.f90 b/gcc/testsuite/gfortran.dg/pr102715.f90 new file mode 100644 index 000000000000..7b29a1c05a63 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr102715.f90 @@ -0,0 +1,13 @@ +! { dg-do compile } +! PR fortran/102715 - ICE in gfc_simplify_transpose + +program p + type t + end type + type(t), parameter :: a(4) = t() + type(t), parameter :: b(2,2) = reshape(a, [2]) ! { dg-error "Rank mismatch" } + type(t), parameter :: c(2,2) = transpose(b) ! { dg-error "must be of rank 2" } + type(t), parameter :: s2(*) = b(2,:) ! { dg-error "Syntax error" } + type(t), parameter :: x(*,*) = reshape(a, [2]) ! { dg-error "Rank mismatch" } + type(t), parameter :: s3(*) = x(2,:) ! { dg-error "Syntax error" } +end diff --git a/gcc/testsuite/gfortran.dg/pr68019.f90 b/gcc/testsuite/gfortran.dg/pr68019.f90 index 2e304c3a2606..77fd55bd331d 100644 --- a/gcc/testsuite/gfortran.dg/pr68019.f90 +++ b/gcc/testsuite/gfortran.dg/pr68019.f90 @@ -9,5 +9,5 @@ program p integer :: n end type type(t), parameter :: vec(*) = [(t(i), i = 1, 4)] - type(t), parameter :: arr(*) = reshape(vec, [2, 2]) ! { dg-error "ranks 1 and 2 in assignment" } + type(t), parameter :: arr(*) = reshape(vec, [2, 2]) ! { dg-error "Rank mismatch" } end -- 2.47.2