https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71880
--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
When compiled with '-m64 -fsanitize=address' the test give at run time
=================================================================
==81688==ERROR: AddressSanitizer: negative-size-param: (size=-1)
#0 0x10f4d9b3b in wrap_memmove (/opt/gcc/gcc7a/lib/libasan.4.dylib+0x41b3b)
#1 0x10f3e0032 in list_formatted_write_scalar
(/opt/gcc/gcc7a/lib/libgfortran.4.dylib+0x142032)
0x602000000150 is located 0 bytes inside of 10-byte region
[0x602000000150,0x60200000015a)
allocated by thread T0 here:
#0 0x10f4fa96d in wrap_malloc (/opt/gcc/gcc7a/lib/libasan.4.dylib+0x6296d)
#1 0x10f29b10d in MAIN__
(/Users/dominiq/Documents/Fortran/g95bench/win/f90/bug/a.out+0x10000110d)
#2 0x10f29b956 in main
(/Users/dominiq/Documents/Fortran/g95bench/win/f90/bug/a.out+0x100001956)
#3 0x7fff94598254 in start (/usr/lib/system/libdyld.dylib+0x5254)
SUMMARY: AddressSanitizer: negative-size-param
(/opt/gcc/gcc7a/lib/libasan.4.dylib+0x41b3b) in wrap_memmove
==81688==ABORTING
Program received signal SIGABRT: Process abort signal.
Backtrace for this error:
#0 0x10f2a0979
#1 0x10f29fd13
#2 0x7fff947a5bb9
Abort
When compiled with '-m32 -fsanitize=address' they give
ASAN:DEADLYSIGNAL
=================================================================
==75073==ERROR: AddressSanitizer: SEGV on unknown address 0x24000000 (pc
0x00357260 bp 0x00000002 sp 0xbfffba20 T0)
#0 0x35725f in __sanitizer::mem_is_zero(char const*, unsigned long)
(/opt/gcc/gcc7a/lib/i386/libasan.4.dylib+0x8425f)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV
(/opt/gcc/gcc7a/lib/i386/libasan.4.dylib+0x8425f) in
__sanitizer::mem_is_zero(char const*, unsigned long)
==75073==ABORTING
Program received signal SIGABRT: Process abort signal.
Backtrace for this error:
#0 0xf124f
#1 0xf05be
#2 0x9f98beba
Abort
