llvm dev - Dec 2020 - Prevent FileCheck output on large files without newlines

Hi all,
  I'm using FileCheck with as input a large file without newlines. The
trouble I'm having is that if no match is found for a check, that FileCheck
output a very large amount of text because it is printing the input file
line context "scanning from here", and that input file is a single
line and
thus very large.

Is there a way to have FileCheck report which CHECK failed, but without
reporting the line context? I've tried `--dump-input=never` but that is no
help (because it seems to control an even more verbose output.).
I think there is no solution and this is a feature request for
FileCheck...

Thanks for your help,
  Johan
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