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authorBoris Ulasevich <boris.ulasevich@gmail.com>2017-01-17 13:27:28 +0000
committerBoris Ulasevich <boris.ulasevich@gmail.com>2017-01-17 13:27:28 +0000
commitd81b53817b1509216ac694d4bd68f145fa28ef8d (patch)
tree5b00ef168524ece6c8624dd61370dd0c7d0225bd /examples
parent4a6a534c0cfcdaf93c7b7b281dd8491615262bba (diff)
BrainF example: fixing output buffering issue
Differential Revision: https://reviews.llvm.org/D27824 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292216 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'examples')
-rw-r--r--examples/BrainF/BrainFDriver.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/examples/BrainF/BrainFDriver.cpp b/examples/BrainF/BrainFDriver.cpp
index 57a86fbf521..d704506d244 100644
--- a/examples/BrainF/BrainFDriver.cpp
+++ b/examples/BrainF/BrainFDriver.cpp
@@ -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);
}