While porting my backends to llvm-3.2, I found a few places where the
optimizers could have performed better. I believe the mainstream targets can
also benefits from my tweaks. But before upstreaming my changes, I would like
to quantify their merits on other applications --- not just my domain specific
codes. In a word, it seemed the right time for me to start using LNT
I followed the LNT quickstart guide, and somehow got some results, but have
trouble using them. How are the other developers using lnt ? What is the
workflow for comparing a patched lllvm to the baseline version ?
I am mainly interested in the tests' execution time.
1. I am bit confused by the 'lnt runtest' output:
$LNT_TOP/sandbox/bin/lnt runtest nt \
2013-03-11 18:41:22: checking source versions
2013-03-11 18:41:25: scanning for LNT-based test modules
2013-03-11 18:41:25: found 0 LNT-based test modules
2013-03-11 18:41:25: using nickname: 'm0__clang_DEV__x86_64'
2013-03-11 18:41:25: starting test in
2013-03-11 18:41:25: configuring...
2013-03-11 18:41:34: executing "nightly tests" with -j1...
2013-03-11 19:00:42: executing test modules
2013-03-11 19:00:42: loading nightly test data...
2013-03-11 19:00:42: capturing machine information
2013-03-11 19:00:42: generating report:
2013-03-11 18:41:22: submitting result to dummy instance
No handlers could be found for logger "lnt.server.db.migrate"