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//===- RuntimeOpVerification.cpp - Op Verification ------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "mlir/IR/AsmState.h"
#include "mlir/Transforms/Passes.h"
#include "mlir/IR/Builders.h"
#include "mlir/IR/Operation.h"
#include "mlir/Interfaces/RuntimeVerifiableOpInterface.h"
namespace mlir {
#define GEN_PASS_DEF_GENERATERUNTIMEVERIFICATION
#include "mlir/Transforms/Passes.h.inc"
} // namespace mlir
using namespace mlir;
namespace {
struct GenerateRuntimeVerificationPass
: public impl::GenerateRuntimeVerificationBase<
GenerateRuntimeVerificationPass> {
void runOnOperation() override;
};
/// Default error message generator for runtime verification failures.
///
/// This class generates error messages with different levels of verbosity:
/// - Level 0: Shows only the error message and operation location
/// - Level 1: Shows the full operation string, error message, and location
///
/// Clients can call getVerboseLevel() to retrieve the current verbose level
/// and use it to customize their own error message generators with similar
/// behavior patterns.
class DefaultErrMsgGenerator {
private:
unsigned vLevel;
AsmState &state;
public:
DefaultErrMsgGenerator(unsigned verboseLevel, AsmState &asmState)
: vLevel(verboseLevel), state(asmState) {}
std::string operator()(Operation *op, StringRef msg) {
std::string buffer;
llvm::raw_string_ostream stream(buffer);
stream << "ERROR: Runtime op verification failed\n";
if (vLevel == 1) {
op->print(stream, state);
stream << "\n^ " << msg;
} else {
stream << "^ " << msg;
}
stream << "\nLocation: ";
op->getLoc().print(stream);
return buffer;
}
unsigned getVerboseLevel() const { return vLevel; }
};
} // namespace
void GenerateRuntimeVerificationPass::runOnOperation() {
// Check verboseLevel is in range [0, 1].
if (verboseLevel > 1) {
getOperation()->emitError(
"generate-runtime-verification pass: set verboseLevel to 0 or 1");
signalPassFailure();
return;
}
// The implementation of the RuntimeVerifiableOpInterface may create ops that
// can be verified. We don't want to generate verification for IR that
// performs verification, so gather all runtime-verifiable ops first.
SmallVector<RuntimeVerifiableOpInterface> ops;
getOperation()->walk([&](RuntimeVerifiableOpInterface verifiableOp) {
ops.push_back(verifiableOp);
});
// We may generate a lot of error messages and so we need to ensure the
// printing is fast.
OpPrintingFlags flags;
flags.elideLargeElementsAttrs();
flags.skipRegions();
flags.useLocalScope();
AsmState state(getOperation(), flags);
// Client can call getVerboseLevel() to fetch verbose level.
DefaultErrMsgGenerator defaultErrMsgGenerator(verboseLevel.getValue(), state);
OpBuilder builder(getOperation()->getContext());
for (RuntimeVerifiableOpInterface verifiableOp : ops) {
builder.setInsertionPoint(verifiableOp);
verifiableOp.generateRuntimeVerification(builder, verifiableOp.getLoc(),
defaultErrMsgGenerator);
};
}
std::unique_ptr<Pass> mlir::createGenerateRuntimeVerificationPass() {
return std::make_unique<GenerateRuntimeVerificationPass>();
}
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