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| author | George Karpenkov <ekarpenkov@apple.com> | 2018-07-20 20:21:57 +0000 |
|---|---|---|
| committer | George Karpenkov <ekarpenkov@apple.com> | 2018-07-20 20:21:57 +0000 |
| commit | 346dfbe2bce57f7d0bb27d24fe3fdd7ae1f50701 (patch) | |
| tree | 209f87606d835738189c9ef40a13d21bece9efba /llvm/docs/CommandGuide/FileCheck.rst | |
| parent | 7ed83591c2e33a008bdd1393892fadc080786fd0 (diff) | |
| download | bcm5719-llvm-346dfbe2bce57f7d0bb27d24fe3fdd7ae1f50701.tar.gz bcm5719-llvm-346dfbe2bce57f7d0bb27d24fe3fdd7ae1f50701.zip | |
[FileCheck] Provide an option for FileCheck to dump original input to stderr on failure
The option can be either set using environment variable (e.g. env
FILECHECK_DUMP_INPUT_ON_FAILURE=1 ninja check-fuzzer) or with a
FileCheck flag.
This can be extremely useful for debugging, cf.
https://groups.google.com/forum/#!topic/llvm-dev/kLrzg8OM_h8 for
discussion.
Differential Revision: https://reviews.llvm.org/D49328
llvm-svn: 337609
Diffstat (limited to 'llvm/docs/CommandGuide/FileCheck.rst')
| -rw-r--r-- | llvm/docs/CommandGuide/FileCheck.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/docs/CommandGuide/FileCheck.rst b/llvm/docs/CommandGuide/FileCheck.rst index dfa2fd29515..b0324f40463 100644 --- a/llvm/docs/CommandGuide/FileCheck.rst +++ b/llvm/docs/CommandGuide/FileCheck.rst @@ -77,6 +77,10 @@ OPTIONS -verify``. With this option FileCheck will verify that input does not contain warnings not covered by any ``CHECK:`` patterns. +.. option:: --dump-input-on-failure + + When the check fails, dump all of the original input. + .. option:: --enable-var-scope Enables scope for regex variables. |
