svn revision 367713 fails to compile with error *** [CodeGenDAGPatterns.o] Error code 137 This is on a Raspberry Pi4.
This is looking like it was due to lack of memory due to the wrong u-boot.bin file being loaded (see https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=247012).
Indeed, something sent SIGKILL to the compiler, most likely the OOM killer. Is there any reason to keep this PR open if it appears to be a duplicate of 247012?