11729f768a
It's very easy to forget to add `isRequired() { return true; }` for
passes that must be run on all IR, rather than e.g. being skipped on
optnone functions.
This PR adds RequiredPassInfoMixin/OptionalPassInfoMixin which have
`isRequired()`, and the long term vision is there to be no default
`isRequired()` on PassInfoMixin.
However, for out-of-tree migration purposes, we leave a `isRequired() {
return false; }` for now in PassInfoMixin.
https://discourse.llvm.org/t/rfc-introduce-mandatorypassinfomixin-optionalpassinfomixin-for-required-not-required-passes/90547
Assisted-by: Gemini
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
//=- StructuralHash.h - Structural Hash Printing --*- 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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#ifndef LLVM_ANALYSIS_STRUCTURALHASH_H
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#define LLVM_ANALYSIS_STRUCTURALHASH_H
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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enum class StructuralHashOptions {
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None, /// Hash with opcode only.
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Detailed, /// Hash with opcode and operands.
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CallTargetIgnored, /// Ignore call target operand when computing hash.
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};
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/// Printer pass for StructuralHashes
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class StructuralHashPrinterPass
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: public RequiredPassInfoMixin<StructuralHashPrinterPass> {
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raw_ostream &OS;
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const StructuralHashOptions Options;
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public:
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explicit StructuralHashPrinterPass(raw_ostream &OS,
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StructuralHashOptions Options)
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: OS(OS), Options(Options) {}
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
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};
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} // namespace llvm
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#endif // LLVM_ANALYSIS_STRUCTURALHASH_H
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