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[MLIR][XLA] Fix ops erase bug in DeadTempBufferRemoval #37687

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merged 1 commit into from Mar 23, 2020
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[MLIR][XLA] Fix ops erase bug in DeadTempBufferRemoval #37687

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9 changes: 7 additions & 2 deletions tensorflow/compiler/xla/service/mlir_gpu/kernel_lowering.cc
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Expand Up @@ -244,14 +244,19 @@ struct DeadTempBufferRemoval : mlir::FunctionPass<DeadTempBufferRemoval> {
}

void runOnFunction() override {
llvm::SmallVector<mlir::Operation *, 8> opsToErase;
getFunction().walk([&](mlir::AllocOp allocOp) {
if (!operationConsideredDead(allocOp)) {
return;
}

// TODO(herhut): There should be a generic helper for this.
recursiveErase(allocOp);
opsToErase.push_back(allocOp);
});

for (auto *op : opsToErase) {
// TODO(herhut): There should be a generic helper for this.
recursiveErase(op);
}
}
};

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