(vaguely related to PR16580) We're currently not checking if an intrinsic is allowed to be used as an actual argument or not (and it's a regression wrt g77): $ ifort a.f fortcom: Error: a.f, line 2: This intrinsic procedure cannot be passed as an actual argument. [ICHAR] call BAR(ichar) ---------------^ compilation aborted for a.f (code 1) $ pgf90 a.f PGF90-S-0073-Intrinsic or predeclared, ichar, cannot be passed as an argument (a.f: 2) 0 inform, 0 warnings, 1 severes, 0 fatal for MAIN $ gfortran a.f /tmp/cckKTcIB.o(.text+0x5): In function `MAIN__': : undefined reference to `specific__ichar_1' /tmp/cckKTcIB.o(.text+0xa): In function `MAIN__': : undefined reference to `bar_' collect2: ld returned 1 exit status
Patch submitted here: http://gcc.gnu.org/ml/fortran/2006-10/msg00022.html
Subject: Bug 29288 Author: fxcoudert Date: Sat Oct 7 13:34:16 2006 New Revision: 117534 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=117534 Log: PR fortran/16580 PR fortran/29288 * gcc/fortran/intrinsic.c (add_sym): Define the actual_ok when a gfc_intrinsic_sym structure is filled. (gfc_intrinsic_actual_ok): New function. (add_sym_0s, add_sym_1s, add_sym_2s, add_sym_3s, add_sym_4s, add_sym_5s): Intrinsic subroutines are not allowed as actual arguments, so we remove argument actual_ok. (add_functions): Correct the values for actual_ok of all intrinsics. (add_subroutines): Remove the actual_ok argument, which was never used. * gcc/fortran/intrinsic.h (gfc_intrinsic_actual_ok): New prototype. * gcc/fortran/gfortran.h (gfc_resolve_index_func): New prototype. * gcc/fortran/resolve.c (resolve_actual_arglist): Check whether an intrinsic used as an argument list is allowed there. * gcc/fortran/iresolve.c (gfc_resolve_index_func): New function. (gfc_resolve_len): Change intrinsic function name to agree with libgfortran. * gcc/fortran/trans-decl.c (gfc_get_extern_function_decl): Add new case, because some specific intrinsics take 3 arguments. * gcc/fortran/intrinsic.texi: DIMAG is a GNU extension. * libgfortran/Makefile.am: Add the new files to the build process, and rules to build them. * libgfortran/Makefile.in: Regenerate. * libgfortran/m4/misc_specifics.m4: New file. * libgfortran/m4/specific.m4: Add new special cases for function with complex argument and real result, like abs_c* and aimag_c*. * libgfortran/intrinsics/f2c_specifics.F90: Add specifics for AIMAG, ASINH, ACOSH and ATANH. * libgfortran/generated/_aimag_c4.F90: New file. * libgfortran/generated/_aimag_c8.F90: New file. * libgfortran/generated/_asinh_r10.F90: New file. * libgfortran/generated/_acosh_r16.F90: New file. * libgfortran/generated/_aimag_c10.F90: New file. * libgfortran/generated/_atanh_r16.F90: New file. * libgfortran/generated/_acosh_r4.F90: New file. * libgfortran/generated/_acosh_r8.F90: New file. * libgfortran/generated/_asinh_r4.F90: New file. * libgfortran/generated/_asinh_r8.F90: New file. * libgfortran/generated/_asinh_r16.F90: New file. * libgfortran/generated/_atanh_r4.F90: New file. * libgfortran/generated/_atanh_r8.F90: New file. * libgfortran/generated/_acosh_r10.F90: New file. * libgfortran/generated/misc_specifics.F90: New file. * libgfortran/generated/_aimag_c16.F90: New file. * libgfortran/generated/_atanh_r10.F90: New file. * gcc/testsuite/gfortran.fortran-torture/execute/specifics.f90: Add tests for using all possible intrinsics as actual arguments. * gcc/testsuite/gfortran.dg/specifics_1.f90: Add tests for using all possible intrinsics as actual arguments. * gcc/testsuite/gfortran.dg/specifics_2.f90: New file. * gcc/testsuite/gfortran.dg/specifics_3.f90: New file. Added: trunk/gcc/testsuite/gfortran.dg/specifics_2.f90 trunk/gcc/testsuite/gfortran.dg/specifics_3.f90 trunk/libgfortran/generated/_acosh_r10.F90 trunk/libgfortran/generated/_acosh_r16.F90 trunk/libgfortran/generated/_acosh_r4.F90 trunk/libgfortran/generated/_acosh_r8.F90 trunk/libgfortran/generated/_aimag_c10.F90 trunk/libgfortran/generated/_aimag_c16.F90 trunk/libgfortran/generated/_aimag_c4.F90 trunk/libgfortran/generated/_aimag_c8.F90 trunk/libgfortran/generated/_asinh_r10.F90 trunk/libgfortran/generated/_asinh_r16.F90 trunk/libgfortran/generated/_asinh_r4.F90 trunk/libgfortran/generated/_asinh_r8.F90 trunk/libgfortran/generated/_atanh_r10.F90 trunk/libgfortran/generated/_atanh_r16.F90 trunk/libgfortran/generated/_atanh_r4.F90 trunk/libgfortran/generated/_atanh_r8.F90 trunk/libgfortran/generated/misc_specifics.F90 trunk/libgfortran/m4/misc_specifics.m4 Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/gfortran.h trunk/gcc/fortran/intrinsic.c trunk/gcc/fortran/intrinsic.h trunk/gcc/fortran/intrinsic.texi trunk/gcc/fortran/iresolve.c trunk/gcc/fortran/resolve.c trunk/gcc/fortran/trans-decl.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gfortran.dg/specifics_1.f90 trunk/gcc/testsuite/gfortran.fortran-torture/execute/specifics.f90 trunk/libgfortran/ChangeLog trunk/libgfortran/Makefile.am trunk/libgfortran/Makefile.in trunk/libgfortran/intrinsics/f2c_specifics.F90 trunk/libgfortran/m4/specific.m4
Fixed on 4.2, won't backport to 4.1.