From bb76446db10c21860a4e19569ce3e350d8a2b59f Mon Sep 17 00:00:00 2001 From: Mark Eggleston Date: Fri, 22 Jan 2021 15:00:44 +0000 Subject: [PATCH 09/10] Add the SEQUENCE attribute by default if it's not present. Use -fdec-sequence to enable this feature. Also enabled by -fdec. --- gcc/fortran/lang.opt | 4 ++ gcc/fortran/options.c | 1 + gcc/fortran/resolve.c | 13 ++++- ...dd_SEQUENCE_to_COMMON_block_by_default_1.f | 57 +++++++++++++++++++ ...dd_SEQUENCE_to_COMMON_block_by_default_2.f | 57 +++++++++++++++++++ ...dd_SEQUENCE_to_COMMON_block_by_default_3.f | 57 +++++++++++++++++++ 6 files changed, 186 insertions(+), 3 deletions(-) create mode 100644 gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_1.f create mode 100644 gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_2.f create mode 100644 gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_3.f diff --git a/gcc/fortran/lang.opt b/gcc/fortran/lang.opt index 4ca2f93f2df..019c798cf09 100644 --- a/gcc/fortran/lang.opt +++ b/gcc/fortran/lang.opt @@ -509,6 +509,10 @@ fdec-promotion Fortran Var(flag_dec_promotion) Add support for type promotion in intrinsic arguments. +fdec-sequence +Fortran Var(flag_dec_sequence) +Add the SEQUENCE attribute by default if it's not present. + fdec-structure Fortran Var(flag_dec_structure) Enable support for DEC STRUCTURE/RECORD. diff --git a/gcc/fortran/options.c b/gcc/fortran/options.c index 15079c7e95a..050f56fdc25 100644 --- a/gcc/fortran/options.c +++ b/gcc/fortran/options.c @@ -83,6 +83,7 @@ set_dec_flags (int value) SET_BITFLAG (flag_dec_override_kind, value, value); SET_BITFLAG (flag_dec_non_logical_if, value, value); SET_BITFLAG (flag_dec_promotion, value, value); + SET_BITFLAG (flag_dec_sequence, value, value); } /* Finalize DEC flags. */ diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c index 07dd039f3bf..fe7d0cc5944 100644 --- a/gcc/fortran/resolve.c +++ b/gcc/fortran/resolve.c @@ -978,9 +978,16 @@ resolve_common_vars (gfc_common_head *common_block, bool named_common) if (!(csym->ts.u.derived->attr.sequence || csym->ts.u.derived->attr.is_bind_c)) - gfc_error_now ("Derived type variable %qs in COMMON at %L " - "has neither the SEQUENCE nor the BIND(C) " - "attribute", csym->name, &csym->declared_at); + { + if (flag_dec_sequence) + /* Assume sequence. */ + csym->ts.u.derived->attr.sequence = 1; + else + gfc_error_now ("Derived type variable '%s' in COMMON at %L " + "has neither the SEQUENCE nor the BIND(C) " + "attribute", csym->name, &csym->declared_at); + } + if (csym->ts.u.derived->attr.alloc_comp) gfc_error_now ("Derived type variable %qs in COMMON at %L " "has an ultimate component that is " diff --git a/gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_1.f b/gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_1.f new file mode 100644 index 00000000000..fe7b39625eb --- /dev/null +++ b/gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_1.f @@ -0,0 +1,57 @@ +! { dg-do run } +! { dg-options "-fdec" } +! +! Test add default SEQUENCE attribute derived types appearing in +! COMMON blocks and EQUIVALENCE statements. +! +! Contributed by Francisco Redondo Marchena +! Modified by Mark Eggleston +! + MODULE SEQ + TYPE STRUCT1 + INTEGER*4 ID + INTEGER*4 TYPE + INTEGER*8 DEFVAL + CHARACTER*(4) NAME + LOGICAL*1 NIL + END TYPE STRUCT1 + END MODULE + + SUBROUTINE A + USE SEQ + TYPE (STRUCT1) S + COMMON /BLOCK1/ S + IF (S%ID.NE.5) STOP 1 + IF (S%TYPE.NE.1000) STOP 2 + IF (S%DEFVAL.NE.-99) STOP 3 + IF (S%NAME.NE."JANE") STOP 4 + IF (S%NIL.NEQV..FALSE.) STOP 5 + END SUBROUTINE + + PROGRAM sequence_att_common + USE SEQ + IMPLICIT NONE + TYPE (STRUCT1) S1 + TYPE (STRUCT1) S2 + TYPE (STRUCT1) S3 + + EQUIVALENCE (S1,S2) + COMMON /BLOCK1/ S3 + + S1%ID = 5 + S1%TYPE = 1000 + S1%DEFVAL = -99 + S1%NAME = "JANE" + S1%NIL = .FALSE. + + IF (S2%ID.NE.5) STOP 1 + IF (S2%TYPE.NE.1000) STOP 2 + IF (S2%DEFVAL.NE.-99) STOP 3 + IF (S2%NAME.NE."JANE") STOP 4 + IF (S2%NIL.NEQV..FALSE.) STOP 5 + + S3 = S1 + + CALL A + + END diff --git a/gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_2.f b/gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_2.f new file mode 100644 index 00000000000..83512f0f3a2 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_2.f @@ -0,0 +1,57 @@ +! { dg-do run } +! { dg-options "-fdec-sequence" } +! +! Test add default SEQUENCE attribute derived types appearing in +! COMMON blocks and EQUIVALENCE statements. +! +! Contributed by Francisco Redondo Marchena +! Modified by Mark Eggleston +! + MODULE SEQ + TYPE STRUCT1 + INTEGER*4 ID + INTEGER*4 TYPE + INTEGER*8 DEFVAL + CHARACTER*(4) NAME + LOGICAL*1 NIL + END TYPE STRUCT1 + END MODULE + + SUBROUTINE A + USE SEQ + TYPE (STRUCT1) S + COMMON /BLOCK1/ S + IF (S%ID.NE.5) STOP 1 + IF (S%TYPE.NE.1000) STOP 2 + IF (S%DEFVAL.NE.-99) STOP 3 + IF (S%NAME.NE."JANE") STOP 4 + IF (S%NIL.NEQV..FALSE.) STOP 5 + END SUBROUTINE + + PROGRAM sequence_att_common + USE SEQ + IMPLICIT NONE + TYPE (STRUCT1) S1 + TYPE (STRUCT1) S2 + TYPE (STRUCT1) S3 + + EQUIVALENCE (S1,S2) + COMMON /BLOCK1/ S3 + + S1%ID = 5 + S1%TYPE = 1000 + S1%DEFVAL = -99 + S1%NAME = "JANE" + S1%NIL = .FALSE. + + IF (S2%ID.NE.5) STOP 1 + IF (S2%TYPE.NE.1000) STOP 2 + IF (S2%DEFVAL.NE.-99) STOP 3 + IF (S2%NAME.NE."JANE") STOP 4 + IF (S2%NIL.NEQV..FALSE.) STOP 5 + + S3 = S1 + + CALL A + + END diff --git a/gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_3.f b/gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_3.f new file mode 100644 index 00000000000..26cd59f9090 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/dec_add_SEQUENCE_to_COMMON_block_by_default_3.f @@ -0,0 +1,57 @@ +! { dg-do compile } +! { dg-options "-fdec -fno-dec-sequence" } +! +! Test add default SEQUENCE attribute derived types appearing in +! COMMON blocks and EQUIVALENCE statements. +! +! Contributed by Francisco Redondo Marchena +! Modified by Mark Eggleston +! + MODULE SEQ + TYPE STRUCT1 + INTEGER*4 ID + INTEGER*4 TYPE + INTEGER*8 DEFVAL + CHARACTER*(4) NAME + LOGICAL*1 NIL + END TYPE STRUCT1 + END MODULE + + SUBROUTINE A + USE SEQ + TYPE (STRUCT1) S ! { dg-error "Derived type variable" } + COMMON /BLOCK1/ S + IF (S%ID.NE.5) STOP 1 + IF (S%TYPE.NE.1000) STOP 2 + IF (S%DEFVAL.NE.-99) STOP 3 + IF (S%NAME.NE."JANE") STOP 4 + IF (S%NIL.NEQV..FALSE.) STOP 5 + END SUBROUTINE + + PROGRAM sequence_att_common + USE SEQ + IMPLICIT NONE + TYPE (STRUCT1) S1 + TYPE (STRUCT1) S2 + TYPE (STRUCT1) S3 ! { dg-error "Derived type variable" } + + EQUIVALENCE (S1,S2) ! { dg-error "Derived type variable" } + COMMON /BLOCK1/ S3 + + S1%ID = 5 + S1%TYPE = 1000 + S1%DEFVAL = -99 + S1%NAME = "JANE" + S1%NIL = .FALSE. + + IF (S2%ID.NE.5) STOP 1 + IF (S2%TYPE.NE.1000) STOP 2 + IF (S2%DEFVAL.NE.-99) STOP 3 + IF (S2%NAME.NE."JANE") STOP 4 + IF (S2%NIL.NEQV..FALSE.) STOP 5 + + S3 = S1 + + CALL A + + END -- 2.27.0