[LLVMdev] Massive Number of Test Failures

[Chris Lattner]

On Feb 25, 2010, at 12:01 PM, David Greene wrote:

> I am seeing a whole lot of failures in the tests on trunk.  From discussions 
> with Chris and others, I should not be seeing this.

Does 'make check-lit' pass for you in llvm/test?

-Chris

> 
> Here's a typical case:
> 
> [x86_64-off-opt]: Core was generated by `Output/simple_throw.cbe'.
> [x86_64-off-opt]: Program terminated with signal 6, Aborted.
> [x86_64-off-opt]: #0  0x00002b0620792b95 in raise () from /lib64/libc.so.6
> [x86_64-off-opt]: #0  0x00002b0620792b95 in raise () from /lib64/libc.so.6
> [x86_64-off-opt]: #1  0x00002b0620793f90 in abort () from /lib64/libc.so.6
> [x86_64-off-opt]: #2  0x00002b0620621af4 in 
> __gnu_cxx::__verbose_terminate_handler () from /usr/lib64/libstdc++.so.6
> [x86_64-off-opt]: #3  0x00002b062061fc36 in ?? () from 
> /usr/lib64/libstdc++.so.6
> [x86_64-off-opt]: #4  0x00002b062061fc63 in std::terminate () from 
> /usr/lib64/libstdc++.so.6
> [x86_64-off-opt]: #5  0x00002b062061fd4a in __cxa_throw () from 
> /usr/lib64/libstdc++.so.6
> [x86_64-off-opt]: #6  0x0000000000400603 in main ()
> [x86_64-off-opt]: /ptmp/dag/llvm-project.official/llvm/trunk/projects/test-
> suite/DiffOutput.sh "/ptmp/dag/build.llvm.trunk.official.opt/x86_64-unknown-
> linux-gnu/Release/bin/fpcmp " cbe simple_throw 
> [x86_64-off-opt]: ******************** TEST (cbe) 'simple_throw' FAILED! 
> ********************
> [x86_64-off-opt]: Execution Context Diff:
> [x86_64-off-opt]: /ptmp/dag/build.llvm.trunk.official.opt/x86_64-unknown-
> linux-gnu/Release/bin/fpcmp: FP Comparison failed, not a numeric difference 
> between 'A' and 't'
> [x86_64-off-opt]: ******************** TEST (cbe) 'simple_throw' 
> ****************************
> 
> Any idea why I would be seeing these and when others don't?  Is it because the 
> buildbots don't build Release tools?  A quick glance suggests all of these
> failures in are Release mode.
> 
> I am on x86_64 Linux.  Is anyone else able to reproduce a bunch of failures in
> Release mode?
> 
> I am using gcc 4.4.2.  Is anyone else using it successfully to build Release 
> tools?  Possibly we have another broken gcc.
> 
>                                                   -Dave
> 
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