vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
136 lines
4.7 KiB
C++
136 lines
4.7 KiB
C++
//===- TailDuplication.cpp - Duplicate blocks into predecessors' tails ----===//
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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 This pass duplicates basic blocks ending in unconditional branches
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/// into the tails of their predecessors, using the TailDuplicator utility
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/// class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/TailDuplication.h"
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#include "llvm/Analysis/ProfileSummaryInfo.h"
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#include "llvm/CodeGen/LazyMachineBlockFrequencyInfo.h"
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#include "llvm/CodeGen/MBFIWrapper.h"
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#include "llvm/CodeGen/MachineBranchProbabilityInfo.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/CodeGen/MachinePassManager.h"
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#include "llvm/CodeGen/TailDuplicator.h"
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#include "llvm/IR/Analysis.h"
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#include "llvm/InitializePasses.h"
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#include "llvm/Pass.h"
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#include "llvm/PassRegistry.h"
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using namespace llvm;
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#define DEBUG_TYPE "tailduplication"
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namespace {
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class TailDuplicateBaseLegacy : public MachineFunctionPass {
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TailDuplicator Duplicator;
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std::unique_ptr<MBFIWrapper> MBFIW;
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bool PreRegAlloc;
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public:
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TailDuplicateBaseLegacy(char &PassID, bool PreRegAlloc)
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: MachineFunctionPass(PassID), PreRegAlloc(PreRegAlloc) {}
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bool runOnMachineFunction(MachineFunction &MF) override;
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.addRequired<MachineBranchProbabilityInfoWrapperPass>();
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AU.addRequired<LazyMachineBlockFrequencyInfoPass>();
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AU.addRequired<ProfileSummaryInfoWrapperPass>();
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MachineFunctionPass::getAnalysisUsage(AU);
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}
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};
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class TailDuplicateLegacy : public TailDuplicateBaseLegacy {
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public:
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static char ID;
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TailDuplicateLegacy() : TailDuplicateBaseLegacy(ID, false) {
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initializeTailDuplicateLegacyPass(*PassRegistry::getPassRegistry());
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}
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};
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class EarlyTailDuplicateLegacy : public TailDuplicateBaseLegacy {
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public:
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static char ID;
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EarlyTailDuplicateLegacy() : TailDuplicateBaseLegacy(ID, true) {
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initializeEarlyTailDuplicateLegacyPass(*PassRegistry::getPassRegistry());
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}
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MachineFunctionProperties getClearedProperties() const override {
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return MachineFunctionProperties().setNoPHIs();
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}
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};
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} // end anonymous namespace
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char TailDuplicateLegacy::ID;
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char EarlyTailDuplicateLegacy::ID;
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char &llvm::TailDuplicateLegacyID = TailDuplicateLegacy::ID;
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char &llvm::EarlyTailDuplicateLegacyID = EarlyTailDuplicateLegacy::ID;
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INITIALIZE_PASS(TailDuplicateLegacy, DEBUG_TYPE, "Tail Duplication", false,
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false)
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INITIALIZE_PASS(EarlyTailDuplicateLegacy, "early-tailduplication",
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"Early Tail Duplication", false, false)
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bool TailDuplicateBaseLegacy::runOnMachineFunction(MachineFunction &MF) {
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if (skipFunction(MF.getFunction()))
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return false;
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auto MBPI = &getAnalysis<MachineBranchProbabilityInfoWrapperPass>().getMBPI();
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auto *PSI = &getAnalysis<ProfileSummaryInfoWrapperPass>().getPSI();
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auto *MBFI = (PSI && PSI->hasProfileSummary()) ?
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&getAnalysis<LazyMachineBlockFrequencyInfoPass>().getBFI() :
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nullptr;
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if (MBFI)
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MBFIW = std::make_unique<MBFIWrapper>(*MBFI);
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Duplicator.initMF(MF, PreRegAlloc, MBPI, MBFI ? MBFIW.get() : nullptr, PSI,
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/*LayoutMode=*/false);
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bool MadeChange = false;
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while (Duplicator.tailDuplicateBlocks())
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MadeChange = true;
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return MadeChange;
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}
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template <typename DerivedT, bool PreRegAlloc>
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PreservedAnalyses TailDuplicatePassBase<DerivedT, PreRegAlloc>::run(
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MachineFunction &MF, MachineFunctionAnalysisManager &MFAM) {
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MFPropsModifier _(static_cast<DerivedT &>(*this), MF);
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auto *MBPI = &MFAM.getResult<MachineBranchProbabilityAnalysis>(MF);
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auto *PSI = MFAM.getResult<ModuleAnalysisManagerMachineFunctionProxy>(MF)
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.getCachedResult<ProfileSummaryAnalysis>(
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*MF.getFunction().getParent());
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auto *MBFI = (PSI && PSI->hasProfileSummary()
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? &MFAM.getResult<MachineBlockFrequencyAnalysis>(MF)
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: nullptr);
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if (MBFI)
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MBFIW = std::make_unique<MBFIWrapper>(*MBFI);
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TailDuplicator Duplicator;
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Duplicator.initMF(MF, PreRegAlloc, MBPI, MBFI ? MBFIW.get() : nullptr, PSI,
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/*LayoutMode=*/false);
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bool MadeChange = false;
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while (Duplicator.tailDuplicateBlocks())
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MadeChange = true;
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if (!MadeChange)
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return PreservedAnalyses::all();
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return getMachineFunctionPassPreservedAnalyses();
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}
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template class llvm::TailDuplicatePassBase<TailDuplicatePass, false>;
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template class llvm::TailDuplicatePassBase<EarlyTailDuplicatePass, true>;
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