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Avoid divide by zero errors

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6738 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-06-17 15:07:20 +00:00
parent 5449955313
commit efa095e418
1 changed files with 18 additions and 14 deletions

32
lib/Analysis/AliasAnalysisCounter.cpp

@ -32,23 +32,27 @@ namespace {
<< "\n===== Alias Analysis Counter Report =====\n" << "\n===== Alias Analysis Counter Report =====\n"
<< " Analysis counted: " << Name << "\n" << " Analysis counted: " << Name << "\n"
<< " " << AASum << " Total Alias Queries Performed\n"; << " " << AASum << " Total Alias Queries Performed\n";
printLine("no alias", No, AASum); if (AASum) {
printLine("may alias", May, AASum); printLine("no alias", No, AASum);
printLine("must alias", Must, AASum); printLine("may alias", May, AASum);
std::cerr printLine("must alias", Must, AASum);
<< " Alias Analysis Counter Summary: " << No*100/AASum << "%/" std::cerr
<< May*100/AASum << "%/" << Must*100/AASum<<"%\n\n"; << " Alias Analysis Counter Summary: " << No*100/AASum << "%/"
<< May*100/AASum << "%/" << Must*100/AASum<<"%\n\n";
}
std::cerr std::cerr
<< " " << MRSum << " Total Mod/Ref Queries Performed\n"; << " " << MRSum << " Total Mod/Ref Queries Performed\n";
printLine("no mod/ref", NoMR, MRSum); if (MRSum) {
printLine("ref", JustRef, MRSum); printLine("no mod/ref", NoMR, MRSum);
printLine("mod", JustMod, MRSum); printLine("ref", JustRef, MRSum);
printLine("mod/ref", MR, MRSum); printLine("mod", JustMod, MRSum);
std::cerr printLine("mod/ref", MR, MRSum);
<< " Mod/Ref Analysis Counter Summary: " << NoMR*100/MRSum<< "%/" std::cerr
<< JustRef*100/MRSum << "%/" << JustMod*100/MRSum << "%/" << " Mod/Ref Analysis Counter Summary: " << NoMR*100/MRSum<< "%/"
<< MR*100/MRSum <<"%\n\n"; << JustRef*100/MRSum << "%/" << JustMod*100/MRSum << "%/"
<< MR*100/MRSum <<"%\n\n";
}
} }
} }