https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71144
Dominik Vogt <vogt at linux dot vnet.ibm.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |vogt at linux dot vnet.ibm.com
--- Comment #1 from Dominik Vogt <vogt at linux dot vnet.ibm.com> ---
I get (pprobably) the same ICE on s390x with today's devel branch in
pr68279.f90. Reduced test case (which intentionally has some out of bound
array accesses):
MODULE foo
CONTAINS
SUBROUTINE bar(o)
INTEGER, DIMENSION(2, 1) :: a
INTEGER, DIMENSION(1) :: b
INTEGER, DIMENSION(1, 1) :: o
INTEGER :: d
DO i=1,2
b(1:2) = b(1:2)
o(1:1, 1:d) = a(1:1, 1:d)
a(1:2, 2) = b(1:2)
d = d + 1
END DO
END SUBROUTINE bar
END MODULE
==>
.../gcc/testsuite/gfortran2/../../gfortran -B.../gcc/testsuite/gfortran2/../../
-B.../s390x-ibm-linux-gnu/32/libgfortran/ x.f90 -floop-nest-optimize -O1 -S
-m64
x.f90:9:10:
b(1:2) = b(1:2)
1
Warning: Upper array reference at (1) is out of bounds (2 > 1) in dimension 1
x.f90:9:19:
b(1:2) = b(1:2)
1
Warning: Upper array reference at (1) is out of bounds (2 > 1) in dimension 1
x.f90:11:15:
a(1:2, 2) = b(1:2)
1
Warning: Array reference at (1) is out of bounds (2 > 1) in dimension 2
x.f90:11:22:
a(1:2, 2) = b(1:2)
1
Warning: Upper array reference at (1) is out of bounds (2 > 1) in dimension 1
isl_aff.c:944: position out of bounds
x.f90:3:0:
SUBROUTINE bar(o)
internal compiler error: Aborted
0x806bd397 crash_signal
/home/vogt/src/t/gcc/toplev.c:335
0x80b3b683 extract_affine_chrec
/home/vogt/src/t/gcc/graphite-sese-to-poly.c:239
0x80b3b683 extract_affine
/home/vogt/src/t/gcc/graphite-sese-to-poly.c:381
0x80b3b8b7 extract_affine
/home/vogt/src/t/gcc/graphite-sese-to-poly.c:421
0x80b3c52d add_condition_to_pbb
/home/vogt/src/t/gcc/graphite-sese-to-poly.c:458
0x80b3c52d add_conditions_to_domain
/home/vogt/src/t/gcc/graphite-sese-to-poly.c:525
0x80b3c52d build_iteration_domains
/home/vogt/src/t/gcc/graphite-sese-to-poly.c:1017
0x80b3c2dd build_iteration_domains
/home/vogt/src/t/gcc/graphite-sese-to-poly.c:1040
0x80b3c95f build_poly_scop(scop*)
/home/vogt/src/t/gcc/graphite-sese-to-poly.c:1364
0x80b296c9 graphite_transform_loops()
/home/vogt/src/t/gcc/graphite.c:319
0x80b29c4f graphite_transforms
/home/vogt/src/t/gcc/graphite.c:356
0x80b29c4f execute
/home/vogt/src/t/gcc/graphite.c:433
