While building the latest gcc snapshot 20190414 on x86_64 with make BOOT_CFLAGS='-Ofast' or '-O3', it fails as below. Is this expected? (For reference, -O2 worked.) Thanks! checking for vsprintf... checking whether byte ordering is bigendian... ../../gcc-9-20190414/libdecnumber/decNumber.c: In function 'decNumberPower': cc1: error: '__builtin_memcpy' reading 2 or more bytes from a region of size 0 [-Werror=stringop-overflow=] yes
