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After fixing PR 406714 gcc test now runs but we have many more errors than Valgrind finds.
One possibility is that like cygwin windows apps bitlevel precision may be needed to
avoid false positives, not just false negatives, as gcc uses a lot of structs with
bitfields.
Valgrind: ERROR SUMMARY: 29 errors from 1 contexts (suppressed: 17 from 1)
From derek.br...@gmail.com on December 10, 2010 17:57:39
PR 408123
After fixing PR 406714 gcc test now runs but we have many more errors than Valgrind finds.
One possibility is that like cygwin windows apps bitlevel precision may be needed to
avoid false positives, not just false negatives, as gcc uses a lot of structs with
bitfields.
Valgrind: ERROR SUMMARY: 29 errors from 1 contexts (suppressed: 17 from 1)
vs
:::Dr.Memory::: ERRORS FOUND:
:::Dr.Memory::: 30 unaddressable access(es)
:::Dr.Memory::: 4227 uninitialized access(es)
:::Dr.Memory::: 4761 invalid free(s)
:::Dr.Memory::: 1121 leak(s)
:::Dr.Memory::: (re-run with -check_leaks for details)
:::Dr.Memory::: ERRORS IGNORED:
:::Dr.Memory::: 0 ignored pre-app leak(s)
:::Dr.Memory::: 0 suppressed error(s)
:::Dr.Memory::: 0 suppressed leak(s)
:::Dr.Memory::: 9 possible leak(s)
:::Dr.Memory::: 0 error(s) beyond -report_max
Original issue: http://code.google.com/p/drmemory/issues/detail?id=108
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