https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80931
Bug ID: 80931
Summary: ICE on move_alloc in gimplify_expr, at
gimplify.c:11335
Product: gcc
Version: 6.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: dev-zero at gentoo dot org
Target Milestone: ---
Created attachment 41444
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41444&action=edit
minimal example for an ICE on move_alloc for deferred-length character strings
Building the attached file using `LC_ALL=C gfortran -c move_alloc_ice.f90` with
gfortran-6.3.0(-p1) and I get:
move_alloce_ice.f90:29:0:
call move_alloc(temp, this%keywords_)
internal compiler error: in gimplify_expr, at gimplify.c:11335
0x8f57be gimplify_expr(tree_node**, gimple**, gimple**, bool (*)
It doesn't seem to be a regression since 5.4.0 exhibits the same error:
$ LC_ALL=C gfortran-5.4.0 -c move_alloc_ice.f90
move_alloc_ice.f90:29:0:
call move_alloc(temp, this%keywords_)
^
internal compiler error: in gimplify_expr, at gimplify.c:9084
0x92511d gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:9084
0x922271 gimplify_modify_expr
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2(tree_node*), int)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:11335
0x8fdc92 gimplify_modify_expr
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:4707
0x8f5141 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:10386
0x8f6da5 gimplify_stmt(tree_node**, gimple**)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:5687
0x8f482b gimplify_statement_list
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:1537
0x8f482b gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:10803
0x8f6da5 gimplify_stmt(tree_node**, gimple**)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:5687
0x8f7940 gimplify_bind_expr
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:1142
0x8f3a94 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:10585
0x8f6da5 gimplify_stmt(tree_node**, gimple**)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:5687
0x8f482b gimplify_statement_list
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:1537
0x8f482b gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:10803
0x8f6da5 gimplify_stmt(tree_node**, gimple**)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:5687
0x8f41ea gimplify_and_add(tree_node*, gimple**)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:425
0x8f41ea gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:10725
0x8f6da5 gimplify_stmt(tree_node**, gimple**)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:5687
0x8f7940 gimplify_bind_expr
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:1142
0x8f3a94 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:10585
0x8f6da5 gimplify_stmt(tree_node**, gimple**)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:5687
0x8f80da gimplify_body(tree_node*, bool)
/var/tmp/paludis/sys-devel-gcc-6.3.0/work/gcc-6.3.0/gcc/gimplify.c:11532
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://bugs.gentoo.org/> for instructions.
It has something to do with the Deferred-length character strings because when
I use fixed length characters, the ICE is gone and the code works as intended
(sort of, but that's my problem). Reducing the example to a simple program
didn't exhibit the ICE either, despite the Deferred-length character strings.
It doesn't seem to be a regression since 5.4.0 exhibits the same error:
$ LC_ALL=C gfortran-5.4.0 -c move_alloc_ice.f90
move_alloc_ice.f90:29:0:
call move_alloc(temp, this%keywords_)
^
internal compiler error: in gimplify_expr, at gimplify.c:9084
0x92511d gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:9084
0x922271 gimplify_modify_expr
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:4648
0x9236f5 gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:8147
0x926275 gimplify_stmt(tree_node**, gimple_statement_base**)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:5566
0x9243ab gimplify_statement_list
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:1493
0x9243ab gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:8562
0x926275 gimplify_stmt(tree_node**, gimple_statement_base**)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:5566
0x926b8f gimplify_bind_expr
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:1139
0x9248d3 gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:8344
0x926275 gimplify_stmt(tree_node**, gimple_statement_base**)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:5566
0x9243ab gimplify_statement_list
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:1493
0x9243ab gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:8562
0x926275 gimplify_stmt(tree_node**, gimple_statement_base**)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:5566
0x923a67 gimplify_and_add(tree_node*, gimple_statement_base**)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:424
0x923a67 gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:8484
0x926275 gimplify_stmt(tree_node**, gimple_statement_base**)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:5566
0x926b8f gimplify_bind_expr
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:1139
0x9248d3 gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:8344
0x926275 gimplify_stmt(tree_node**, gimple_statement_base**)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:5566
0x927299 gimplify_body(tree_node*, bool)
/var/tmp/paludis/sys-devel-gcc-5.4.0-r2/work/gcc-5.4.0/gcc/gimplify.c:9281
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://bugs.gentoo.org/> for instructions.
