6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
//===-- Float2Int.h - Demote floating point ops to work on integers -------===//
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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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// This file provides the Float2Int pass, which aims to demote floating
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// point operations to work on integers, where that is losslessly possible.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_SCALAR_FLOAT2INT_H
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#define LLVM_TRANSFORMS_SCALAR_FLOAT2INT_H
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#include "llvm/ADT/EquivalenceClasses.h"
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#include "llvm/ADT/MapVector.h"
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#include "llvm/ADT/SetVector.h"
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#include "llvm/IR/ConstantRange.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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class DominatorTree;
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class Function;
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class Instruction;
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class LLVMContext;
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class Type;
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class Value;
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class Float2IntPass : public PassInfoMixin<Float2IntPass> {
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public:
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
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// Glue for old PM.
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bool runImpl(Function &F, const DominatorTree &DT);
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private:
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void findRoots(Function &F, const DominatorTree &DT);
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void seen(Instruction *I, ConstantRange R);
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ConstantRange badRange();
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ConstantRange unknownRange();
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ConstantRange validateRange(ConstantRange R);
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std::optional<ConstantRange> calcRange(Instruction *I);
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void walkBackwards();
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void walkForwards();
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bool validateAndTransform(const DataLayout &DL);
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Value *convert(Instruction *I, Type *ToTy);
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void cleanup();
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MapVector<Instruction *, ConstantRange> SeenInsts;
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SmallSetVector<Instruction *, 8> Roots;
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EquivalenceClasses<Instruction *> ECs;
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MapVector<Instruction *, Value *> ConvertedInsts;
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LLVMContext *Ctx;
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};
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}
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#endif // LLVM_TRANSFORMS_SCALAR_FLOAT2INT_H
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