e81fab6847
Add additional verifier call just before execution, to make sure the final VPlan is valid. Note that this currently requires disabling a small number of checks when running late.
43 lines
1.8 KiB
C++
43 lines
1.8 KiB
C++
//===-- VPlanVerifier.h -----------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file declares the class VPlanVerifier, which contains utility functions
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/// to check the consistency of a VPlan. This includes the following kinds of
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/// invariants:
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///
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/// 1. Region/Block invariants:
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/// - Region's entry/exit block must have no predecessors/successors,
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/// respectively.
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/// - Block's parent must be the region immediately containing the block.
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/// - Linked blocks must have a bi-directional link (successor/predecessor).
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/// - All predecessors/successors of a block must belong to the same region.
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/// - Blocks must have no duplicated successor/predecessor.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_VECTORIZE_VPLANVERIFIER_H
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#define LLVM_TRANSFORMS_VECTORIZE_VPLANVERIFIER_H
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namespace llvm {
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class VPlan;
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/// Verify invariants for general VPlans. If \p VerifyLate is passed, skip some
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/// checks that are not applicable at later stages of the transform pipeline.
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/// Currently it checks the following:
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/// 1. Region/Block verification: Check the Region/Block verification
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/// invariants for every region in the H-CFG.
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/// 2. all phi-like recipes must be at the beginning of a block, with no other
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/// recipes in between. Note that currently there is still an exception for
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/// VPBlendRecipes.
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bool verifyVPlanIsValid(const VPlan &Plan, bool VerifyLate = false);
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} // namespace llvm
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#endif //LLVM_TRANSFORMS_VECTORIZE_VPLANVERIFIER_H
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