shiftNegative
ftp://ftp.de.debian.org/debian/pool/main/w/wv/wv_1.2.9.orig.tar.gz
wv-1.2.9/decrypt95.c:125:10: error: Shifting by a negative value is undefined behaviour [shiftNegative]
ftp://ftp.de.debian.org/debian/pool/main/x/xavs2/xavs2_1.3.orig.tar.gz
xavs2-1.3/source/encoder/aec_fastrdo.c:1491:71: error: Shifting by a negative value is undefined behaviour [shiftNegative]
xavs2-1.3/source/encoder/aec_rdo.c:1516:67: error: Shifting by a negative value is undefined behaviour [shiftNegative]