https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99191
Bug ID: 99191
Summary: sanitizer detects undefined behaviour in libgfortran
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libfortran
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
! from pr66311.f90
! must be compiled and run with sanitized libgfortran
!../../../gcc-150221/libgfortran/io/write.c:835:7: runtime error: negation of
0x80000000000000000000000000000000 cannot be represented in type '__int128';
cast to an unsigned type to negate this value to itself
!../../../gcc-150221/libgfortran/runtime/string.c:199:11: runtime error:
negation of 0x80000000000000000000000000000000 cannot be represented in type
'__int128'; cast to an unsigned type to negate this value to itself
use iso_fortran_env, only : ikinds => integer_kinds
integer, parameter :: k = ikinds(size(ikinds))
write(*,*) -huge(0_k)-1
end
