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//===--- DebugInfoVerifier.cpp --------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2021 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
///
/// \file
///
/// Utility verifier code for validating debug info.
///
//===----------------------------------------------------------------------===//
#include "swift/SIL/SILDebugScope.h"
#include "swift/SIL/SILInstruction.h"
using namespace swift;
//===----------------------------------------------------------------------===//
// MARK: Verify SILInstruction Debug Info
//===----------------------------------------------------------------------===//
void SILInstruction::verifyDebugInfo() const {
auto require = [&](bool reqt, StringRef message) {
if (!reqt) {
llvm::errs() << message << "\n";
assert(false && "invoking standard assertion failure");
}
};
// Check the location kind.
SILLocation loc = getLoc();
SILLocation::LocationKind locKind = loc.getKind();
SILInstructionKind instKind = getKind();
// Regular locations are allowed on all instructions.
if (locKind == SILLocation::RegularKind)
return;
if (locKind == SILLocation::ReturnKind ||
locKind == SILLocation::ImplicitReturnKind)
require(
instKind == SILInstructionKind::BranchInst ||
instKind == SILInstructionKind::ReturnInst ||
instKind == SILInstructionKind::UnreachableInst,
"return locations are only allowed on branch and return instructions");
if (locKind == SILLocation::ArtificialUnreachableKind)
require(
instKind == SILInstructionKind::UnreachableInst,
"artificial locations are only allowed on Unreachable instructions");
}
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