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BrainF example: fixing output buffering issue

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Differential Revision: https://reviews.llvm.org/D27824

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292216 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Boris Ulasevich 2017-01-17 13:27:28 +00:00
parent 4a6a534c0c
commit d81b53817b
1 changed files with 4 additions and 0 deletions
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4
examples/BrainF/BrainFDriver.cpp
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@ -166,6 +166,10 @@ int main(int argc, char **argv) {
std::vector<GenericValue> args;
Function *brainf_func = M.getFunction("brainf");
GenericValue gv = ee->runFunction(brainf_func, args);
// Genereated code calls putchar, and output is not guaranteed without fflush.
// The better place for fflush(stdout) call would be the generated code, but it
// is unmanageable because stdout linkage name depends on stdlib implementation.
fflush(stdout);
} else {
WriteBitcodeToFile(Mod.get(), *out);
}