llvm.org GIT mirror llvm / 733e633
[docs][Bugpoint]Add notes about multiple crashes Summary: When reducing case for a CodeGenCrash, bugpoint may generate a new reduced testcase that exposes/causes another crash or break something due to limitation. Bugpoint does not distiguish different crashes currently, so when this happens, bugpoint will go on reducing for the new crash, or just abort, we can't get the case reduced for the origial crash. An advice is added into usage doc to connect to recommend checking error message with scripts and `-compile-command`. Reviewers: modocache, bogner, sebpop, reames, vsk, MatzeB Reviewed By: vsk Subscribers: mehdi_amini, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D66832 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@372157 91177308-0d34-0410-b5e6-96231b3b80d8 Jinsong Ji 30 days ago
1 changed file(s) with 6 addition(s) and 0 deletion(s). Raw diff Collapse all Expand all
120120 miscompilation. Programs should be temporarily modified to disable outputs
121121 that are likely to vary from run to run.
122122
123 * In the `crash debugger`_, ``bugpoint`` does not distiguish different crashes
124 during reduction. Thus, if new crash or miscompilation happens, ``bugpoint``
125 will continue with the new crash instead. If you would like to stick to
126 particular crash, you should write check scripts to validate the error
127 message, see ``-compile-command`` in :doc:`/Bugpoint`_.
128
123129 * In the code generator and miscompilation debuggers, debugging will go faster
124130 if you manually modify the program or its inputs to reduce the runtime, but
125131 still exhibit the problem.