42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
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//===- LowerConstantIntrinsics.h - Lower constant int. pass -*- 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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/// \file
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///
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/// The header file for the LowerConstantIntrinsics pass as used by the new pass
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/// manager.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_SCALAR_LOWERCONSTANTINTRINSICS_H
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#define LLVM_TRANSFORMS_SCALAR_LOWERCONSTANTINTRINSICS_H
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#include "llvm/IR/Function.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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struct LowerConstantIntrinsicsPass :
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PassInfoMixin<LowerConstantIntrinsicsPass> {
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public:
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explicit LowerConstantIntrinsicsPass() {}
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/// Run the pass over the function.
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///
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/// This will lower all remaining 'objectsize' and 'is.constant'`
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/// intrinsic calls in this function, even when the argument has no known
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/// size or is not a constant respectively. The resulting constant is
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/// propagated and conditional branches are resolved where possible.
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/// This complements the Instruction Simplification and
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/// Instruction Combination passes of the optimized pass chain.
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &);
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};
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}
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#endif
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