[LLVMdev] help with bugpointing an invalid code generation
Rafael Espindola
espindola at google.com
Tue Aug 18 04:45:03 PDT 2009
I normally use bugpoint to debug code gen crashes. I am having a
harder time using it to reduce an invalid code generation.
The code I want to reduce is the testcase of
llvm.org/PR4734
With some help from nick the best so far is
bugpoint -loop-rotate --append-exit-code --llc-safe opt1.bc -Xlinker -lstdc++
bugpoint will acknowledge that there is a problem, but instead of
doing a regular reduce as it would with a crash
it tries to split the file and fails to reduce the test that way.
Is there a way to force it to use the same reduction algorithm used
when reducing a crash?
Thanks,
--
Rafael Avila de Espindola
Google | Gordon House | Barrow Street | Dublin 4 | Ireland
Registered in Dublin, Ireland | Registration Number: 368047
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