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[compiler-rt] Fix a flaky test

Authored by kubamracek on Mar 22 2015, 2:59 AM.



The regression test in test/asan/TestCases/ returns an exit code with this statement:

return res ? res : 1;

with the intention of always returning a non-zero exit code, no matter what res is (it's a result of a pretty much random memory read). However, when res is accidentally a multiple of 256, then (at least on Darwin) this will be treated as a zero exit code. Let's change the test to only return one byte of res and not the whole int.

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kubamracek updated this revision to Diff 22418.Mar 22 2015, 2:59 AM
kubamracek retitled this revision from to [compiler-rt] Fix a flaky test.
kubamracek updated this object.
kubamracek edited the test plan for this revision. (Show Details)
kubamracek added subscribers: Unknown Object (MLST), samsonov, glider and 2 others.

Nice catch! I'd go for smth. simpler than that, e.g.

unsigned res = x[index];
return (res % 10) + 1;

Updating patch.

Ah, forgot the unsigned...

samsonov accepted this revision.Mar 22 2015, 10:56 AM
samsonov added a reviewer: samsonov.


This revision is now accepted and ready to land.Mar 22 2015, 10:56 AM
kubamracek closed this revision.Mar 22 2015, 11:03 AM

Landed in r232920.