[Bug fortran/78395] [OOP] ICE for operations with polymorphic variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78395 --- Comment #6 from Chris --- > Which one do you mean exactly? Shouldn't they all use the user-defined > assignment function? Yes, that's right--they all should. Sorry, I didn't have the code up in front of me when I wrote that so I was a bit imprecise in what I was saying.
[Bug fortran/78395] [OOP] ICE for operations with polymorphic variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78395 --- Comment #5 from janus at gcc dot gnu.org --- (In reply to Chris from comment #4) > I tried compiling (my original example) on a different box, this one with > gfortran 6.2.0 obtained from the ubuntu-toolchain-r/test PPA. I got > > [..] > gcc version 6.2.0 20160901 (Ubuntu 6.2.0-3ubuntu11~16.04) My gfortran-6 version is what currently is in Ubuntu 16.10: gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) and that does not give an ICE, but the error shown above. > Would there be some issue with the build which is causing the ICE for me? Not sure. Since our versions differ a bit, the most probable scenario is that the different behavior was caused by some recent backport (unfortunately Ubuntu does not give exact revision numbers). One should check the logfile: https://gcc.gnu.org/viewcvs/gcc/branches/gcc-6-branch/gcc/fortran/ChangeLog?view=markup > The error message which you reported for gfortran 6.2.0 also doesn't make > sense to me, as I use defined-assignment to allocatable variables frequently > in my code without problem. True. Didn't notice that. I guess the error should only apply to intrinsic assignment, not user-defined. So maybe that's a bug after all. > Indeed, it is used a line or two earlier in the > example I provided. Which one do you mean exactly? Shouldn't they all use the user-defined assignment function? In any case the error is thrown on the last line, and I also get it on the reduced example in comment 3: $ gfortran-6 c3.f90 c3.f90:62:2: v6 = 3 * v4%get_t2() ! This line is the one which causes ICE 1 Error: Assignment to an allocatable polymorphic variable at (1) is not yet supported
[Bug fortran/78395] [OOP] ICE for operations with polymorphic variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78395 --- Comment #4 from Chris --- I tried compiling (my original example) on a different box, this one with gfortran 6.2.0 obtained from the ubuntu-toolchain-r/test PPA. I got Driving: gfortran-6 -v minimal.f90 -l gfortran -l m -shared-libgcc Using built-in specs. COLLECT_GCC=gfortran-6 COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/6/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu 6.2.0-3ubuntu11~16.04' --with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-6 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 6.2.0 20160901 (Ubuntu 6.2.0-3ubuntu11~16.04) COLLECT_GCC_OPTIONS='-v' '-shared-libgcc' '-mtune=generic' '-march=x86-64' /usr/lib/gcc/x86_64-linux-gnu/6/f951 minimal.f90 -quiet -dumpbase minimal.f90 -mtune=generic -march=x86-64 -auxbase minimal -version -fintrinsic-modules-path /usr/lib/gcc/x86_64-linux-gnu/6/finclude -o /tmp/chris/ccDLOYCy.s GNU Fortran (Ubuntu 6.2.0-3ubuntu11~16.04) version 6.2.0 20160901 (x86_64-linux-gnu) compiled by GNU C version 6.2.0 20160901, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.3, isl version 0.15 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 GNU Fortran2008 (Ubuntu 6.2.0-3ubuntu11~16.04) version 6.2.0 20160901 (x86_64-linux-gnu) compiled by GNU C version 6.2.0 20160901, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.3, isl version 0.15 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 f951: internal compiler error: in gfc_add_component_ref, at fortran/class.c:241 0x5dede4 gfc_add_component_ref(gfc_expr*, char const*) ../../src/gcc/fortran/class.c:241 0x6564f1 resolve_typebound_function ../../src/gcc/fortran/resolve.c:6014 0x6564f1 gfc_resolve_expr(gfc_expr*) ../../src/gcc/fortran/resolve.c:6357 0x60730a gfc_extend_expr(gfc_expr*) ../../src/gcc/fortran/interface.c:3943 0x656064 resolve_operator ../../src/gcc/fortran/resolve.c:3850 0x656064 gfc_resolve_expr(gfc_expr*) ../../src/gcc/fortran/resolve.c:6339 0x65cab3 gfc_resolve_code(gfc_code*, gfc_namespace*) ../../src/gcc/fortran/resolve.c:10459 0x65f282 resolve_codes ../../src/gcc/fortran/resolve.c:15656 0x65f37e gfc_resolve(gfc_namespace*) ../../src/gcc/fortran/resolve.c:15691 0x64a62a resolve_all_program_units ../../src/gcc/fortran/parse.c:5854 0x64a62a gfc_parse_file() ../../src/gcc/fortran/parse.c:6106 0x68c1c2 gfc_be_parse_file ../../src/gcc/fortran/f95-lang.c:201 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions. Would there be some issue with the build which is causing the ICE for me? The error message which you reported for gfortran 6.2.0 also doesn't make sense to me, as I use defined-assignment to allocatable variables frequently in my code without problem. Indeed, it is used a line or two earlier in the example I provided.
[Bug fortran/78395] [OOP] ICE for operations with polymorphic variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78395 --- Comment #3 from janus at gcc dot gnu.org --- Somewhat reduced test case (without all the abstract stuff): module types_mod implicit none type, public :: t1 integer :: a contains procedure :: get_t2 end type type, public :: t2 integer :: b contains procedure, pass(rhs) :: mul2 procedure :: assign generic :: operator(*) => mul2 generic :: assignment(=) => assign end type contains function get_t2(this) class(t1), intent(in) :: this class(t2), allocatable :: get_t2 type(t2), allocatable :: local allocate(local) local%b = this%a call move_alloc(local, get_t2) end function function mul2(lhs, rhs) class(t2), intent(in) :: rhs integer, intent(in) :: lhs class(t2), allocatable :: mul2 type(t2), allocatable :: local allocate(local) local%b = rhs%b*lhs call move_alloc(local, mul2) end function subroutine assign(this, rhs) class(t2), intent(out) :: this class(t2), intent(in) :: rhs select type(rhs) type is(t2) this%b = rhs%b class default error stop end select end subroutine end module program minimal use types_mod implicit none class(t1), allocatable :: v4 class(t2), allocatable :: v6 allocate(v4, source=t1(4)) ! Also fails if I use `allocate(t1 :: v4)` v6 = 3 * v4%get_t2() ! This line is the one which causes ICE end
[Bug fortran/78395] [OOP] ICE for operations with polymorphic variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78395 janus at gcc dot gnu.org changed: What|Removed |Added CC||vehre at gcc dot gnu.org --- Comment #2 from janus at gcc dot gnu.org --- (In reply to janus from comment #1) > gfortran 6.2.0 says: > >v6 = 3 * v4%get_t2() ! This line is the one which causes ICE > 1 > Error: Assignment to an allocatable polymorphic variable at (1) is not yet > supported It seems this error message was removed on trunk by Andre's r241439.
[Bug fortran/78395] [OOP] ICE for operations with polymorphic variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78395 janus at gcc dot gnu.org changed: What|Removed |Added Keywords||diagnostic Status|UNCONFIRMED |NEW Last reconfirmed||2016-11-17 CC||janus at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from janus at gcc dot gnu.org --- I can confirm the ICE in gfc_add_component_ref only with gfortran 5.4.1 and earlier. gfortran 6.2.0 says: v6 = 3 * v4%get_t2() ! This line is the one which causes ICE 1 Error: Assignment to an allocatable polymorphic variable at (1) is not yet supported And a current trunk build: v6 = 3 * v4%get_t2() ! This line is the one which causes ICE 1 Error: Can't convert TYPE(__vtype_types_mod_A1) to CLASS(a2) at (1) The error with 6.2 is acceptable, I guess, but the one with trunk is not so nice.
