{"id":2226765,"url":"http://patchwork.ozlabs.org/api/covers/2226765/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/cover/bmm.hhup2dpico.gcc.gcc-TEST.yuao.80.1.0@forge-stage.sourceware.org/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/projects/17/?format=json","name":"GNU Compiler Collection","link_name":"gcc","list_id":"gcc-patches.gcc.gnu.org","list_email":"gcc-patches@gcc.gnu.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"","list_archive_url":null,"date":"2026-04-22T18:46:58","name":"[v1,0/1] fortran: implement conditional expression for fortran 2023","submitter":{"id":93230,"url":"http://patchwork.ozlabs.org/api/people/93230/?format=json","name":"yuao via Sourceware Forge","email":"forge-bot+yuao@forge-stage.sourceware.org"},"mbox":"http://patchwork.ozlabs.org/project/gcc/cover/bmm.hhup2dpico.gcc.gcc-TEST.yuao.80.1.0@forge-stage.sourceware.org/mbox/","series":[{"id":501093,"url":"http://patchwork.ozlabs.org/api/series/501093/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=501093","date":"2026-04-22T18:46:59","name":"fortran: implement conditional expression for fortran 2023","version":1,"mbox":"http://patchwork.ozlabs.org/series/501093/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2226765/comments/","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","gcc-patches@gcc.gnu.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","gcc-patches@gcc.gnu.org"],"Authentication-Results":["legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=2620:52:6:3111::32; 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server2.sourceware.org","From":"yuao via Sourceware Forge ","Date":"Wed, 22 Apr 2026 18:46:58 +0000","Subject":"[PATCH v1 0/1] fortran: implement conditional expression for fortran\n 2023","To":"gcc-patches mailing list ","Message-ID":"\n ","X-Mailer":"batrachomyomachia","X-Pull-Request-Organization":"gcc","X-Pull-Request-Repository":"gcc-TEST","X-Pull-Request":"https://forge.sourceware.org/gcc/gcc-TEST/pulls/80","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Reply-To":"gcc-patches mailing list ,\n yuao@noreply.localhost","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"},"content":"Hi gcc-patches mailing list,\nyuao via Sourceware Forge has requested that the following forgejo pull request\nbe published on the mailing list.\n\nCreated on: 2025-09-13 05:18:37+00:00\nLatest update: 2025-09-17 15:03:21+00:00\nChanges: 18 changed files, 522 additions, 18 deletions\nHead revision: yuao/gcc-TEST ref cond-expr commit 12edebd03a6e418f14688eb7bb4a04a4bb7266e1\nBase revision: gcc/gcc-TEST ref trunk commit 908edc130910c5bea6d2d6b2a390793e7c106a6a r16-3838-g908edc130910c5\nMerge base: 908edc130910c5bea6d2d6b2a390793e7c106a6a\nFull diff url: https://forge.sourceware.org/gcc/gcc-TEST/pulls/80.diff\nDiscussion: https://forge.sourceware.org/gcc/gcc-TEST/pulls/80\nRequested Reviewers:\n\nThis patch adds support for conditional expressions in Fortran 2023 for a\nlimited set of types (logical, numerical), and also includes limited support\nfor conditional arguments without `.nil.` support.\n\ngcc/fortran/ChangeLog:\n\n\t* dump-parse-tree.cc (show_expr): Add support for EXPR_CONDITIONAL.\n\t* expr.cc (gfc_get_conditional_expr): Add cond-expr constructor.\n\t(gfc_copy_expr, free_expr0, gfc_is_constant_expr,\n\tsimplify_conditional, gfc_simplify_expr, gfc_check_init_expr,\n\tcheck_restricted, gfc_traverse_expr): Add support for EXPR_CONDITIONAL.\n\t* frontend-passes.cc (gfc_expr_walker): Ditto.\n\t* gfortran.h (enum expr_t): Add EXPR_CONDITIONAL.\n\t(gfc_get_operator_expr): Format fix.\n\t(gfc_get_conditional_expr): New decl.\n\t* matchexp.cc\n\t(match_conditional, match_primary): Parsing for EXPR_CONDITIONAL.\n\t* module.cc (mio_expr): Add support for EXPR_CONDITIONAL.\n\t* resolve.cc (resolve_conditional, gfc_resolve_expr): Ditto.\n\t* trans-array.cc (gfc_walk_conditional_expr, gfc_walk_subexpr): Ditto.\n\t* trans-expr.cc\n\t(gfc_conv_conditional_expr): Codegen for EXPR_CONDITIONAL.\n\t(gfc_apply_interface_mapping_to_expr, gfc_conv_expr,\n\tgfc_conv_expr_reference): Add support for EXPR_CONDITIONAL.\n\ngcc/testsuite/ChangeLog:\n\n\t* gfortran.dg/conditional_1.f90: New test.\n\t* gfortran.dg/conditional_2.f90: New test.\n\t* gfortran.dg/conditional_3.f90: New test.\n\t* gfortran.dg/conditional_4.f90: New test.\n\t* gfortran.dg/conditional_5.f90: New test.\n\t* gfortran.dg/conditional_6.f90: New test.\n\t* gfortran.dg/conditional_7.f90: New test.\n\t* gfortran.dg/conditional_8.f90: New test.\n\t* gfortran.dg/conditional_9.f90: New test.\n\nThanks for taking the time to contribute to GCC!\n\nPlease be advised that https://forge.sourceware.org/ is currently a trial\nthat is being used by the GCC community to experiment with a new workflow\nbased on pull requests.\n\nPull requests sent here may be forgotten or ignored. Patches that you want to\npropose for inclusion in GCC should use the existing email-based workflow,\nsee https://gcc.gnu.org/contribute.html\n\n\nChanged files:\n- A: gcc/testsuite/gfortran.dg/conditional_1.f90\n- A: gcc/testsuite/gfortran.dg/conditional_2.f90\n- A: gcc/testsuite/gfortran.dg/conditional_3.f90\n- A: gcc/testsuite/gfortran.dg/conditional_4.f90\n- A: gcc/testsuite/gfortran.dg/conditional_5.f90\n- A: gcc/testsuite/gfortran.dg/conditional_6.f90\n- A: gcc/testsuite/gfortran.dg/conditional_7.f90\n- A: gcc/testsuite/gfortran.dg/conditional_8.f90\n- A: gcc/testsuite/gfortran.dg/conditional_9.f90\n- M: gcc/fortran/dump-parse-tree.cc\n- M: gcc/fortran/expr.cc\n- M: gcc/fortran/frontend-passes.cc\n- M: gcc/fortran/gfortran.h\n- M: gcc/fortran/matchexp.cc\n- M: gcc/fortran/module.cc\n- M: gcc/fortran/resolve.cc\n- M: gcc/fortran/trans-array.cc\n- M: gcc/fortran/trans-expr.cc\n\n\nYuao Ma (1):\n fortran: implement conditional expression for fortran 2023\n\n gcc/fortran/dump-parse-tree.cc | 10 ++\n gcc/fortran/expr.cc | 118 ++++++++++++++++++++\n gcc/fortran/frontend-passes.cc | 5 +\n gcc/fortran/gfortran.h | 30 ++++-\n gcc/fortran/matchexp.cc | 79 +++++++++++--\n gcc/fortran/module.cc | 10 +-\n gcc/fortran/resolve.cc | 71 ++++++++++++\n gcc/fortran/trans-array.cc | 13 +++\n gcc/fortran/trans-expr.cc | 70 ++++++++++++\n gcc/testsuite/gfortran.dg/conditional_1.f90 | 32 ++++++\n gcc/testsuite/gfortran.dg/conditional_2.f90 | 13 +++\n gcc/testsuite/gfortran.dg/conditional_3.f90 | 9 ++\n gcc/testsuite/gfortran.dg/conditional_4.f90 | 21 ++++\n gcc/testsuite/gfortran.dg/conditional_5.f90 | 7 ++\n gcc/testsuite/gfortran.dg/conditional_6.f90 | 16 +++\n gcc/testsuite/gfortran.dg/conditional_7.f90 | 11 ++\n gcc/testsuite/gfortran.dg/conditional_8.f90 | 14 +++\n gcc/testsuite/gfortran.dg/conditional_9.f90 | 11 ++\n 18 files changed, 522 insertions(+), 18 deletions(-)\n create mode 100644 gcc/testsuite/gfortran.dg/conditional_1.f90\n create mode 100644 gcc/testsuite/gfortran.dg/conditional_2.f90\n create mode 100644 gcc/testsuite/gfortran.dg/conditional_3.f90\n create mode 100644 gcc/testsuite/gfortran.dg/conditional_4.f90\n create mode 100644 gcc/testsuite/gfortran.dg/conditional_5.f90\n create mode 100644 gcc/testsuite/gfortran.dg/conditional_6.f90\n create mode 100644 gcc/testsuite/gfortran.dg/conditional_7.f90\n create mode 100644 gcc/testsuite/gfortran.dg/conditional_8.f90\n create mode 100644 gcc/testsuite/gfortran.dg/conditional_9.f90"}