because opt exited while llvm-as was still writing to the pipe, causing it to get a SIGPIPE. It seems best to change things to avoid the race altogether. llvm-svn: 54138
Also, use > %t instead of -o %t for output in one test since that also works when %t already exists. This fixes 6 testcases. llvm-svn: 52178
invalid command-line options. llvm-svn: 47523