Beginner question: request guidance on how to trace 'make check' failure in SVN build

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1

Greetings everybody,

I'm at beginner level with LLVM and tried to build the sources from
SVN revision 54920 on Fedora 9 (kernel 2.6.25-14.fc9.x86_64) running
on Intel Q6600 @ 2.40GHz processor. LLVM build using 'make -j 4' was
successful. However, during 'make check', a test case failed. The
relevant snippets appear below. Can someone please point me to any
links on how the relevant error can be further traced? I am interested
in contributing to the testing efforts for LLVM on Linux and eager to
learn the essential tools for the same. I'm highly impressed with LLVM
so far.

'make check' output

2

This a current failure on LLVM TOT. It will probably be fixed soon.

As for tracing the error, you should first read up on our testing framework:
http://llvm.org/docs/TestingGuide.html

Generally, you will want to look at the failing tests RUN line and determine what part is failing (in the case below, grep is failing). Most of the tests in llvm/test are pretty small, so you probably don't need to reduce the test case. Then its a matter of understanding what the test is testing for and debugging the pass/opt or whatever.

For bigger test cases, you will want to read up on bugpoint:
http://llvm.org/cmds/bugpoint.html
http://llvm.org/docs/Bugpoint.html

How to file a bug report:
http://llvm.org/docs/HowToSubmitABug.html

-Tanya