https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98716
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- The failed asan tests are all with -flto, and the changes in the output are from: WRITE of size 1 at 0x7ffeab2b5d8a thread T0 #0 0x401288 in foo /home/jakub/src/gcc/gcc/testsuite/c-c++-common/asan/alloca_big_alignment.c:11 #1 0x4010c4 in main /home/jakub/src/gcc/gcc/testsuite/c-c++-common/asan/alloca_big_alignment.c:15 #2 0x7f9c719311a1 in __libc_start_main (/lib64/libc.so.6+0x281a1) #3 0x40112d in _start (/home/jakub/src/gcc/obj66/gcc/testsuite/gcc6/alloca_big_alignment.exe+0x40112d) like output to: WRITE of size 1 at 0x7ffe337c4b0a thread T0 #0 0x401288 in foo gcc/obj2/gcc/testsuite/gcc3/<artificial>:11 #1 0x4010c4 in main gcc/obj2/gcc/testsuite/gcc3/<artificial>:15 #2 0x7efe2df801a1 in __libc_start_main (/lib64/libc.so.6+0x281a1) #3 0x40112d in _start (gcc/obj2/gcc/testsuite/gcc3/alloca_big_alignment.exe+0x40112d)