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).
124 lines
3.9 KiB
C++
124 lines
3.9 KiB
C++
//===-------- EdgeBundles.cpp - Bundles of CFG edges ----------------------===//
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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 implementation of the EdgeBundles analysis.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/EdgeBundles.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/CodeGen/MachineBasicBlock.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/InitializePasses.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/GraphWriter.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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static cl::opt<bool>
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ViewEdgeBundles("view-edge-bundles", cl::Hidden,
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cl::desc("Pop up a window to show edge bundle graphs"));
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char EdgeBundlesWrapperLegacy::ID = 0;
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INITIALIZE_PASS(EdgeBundlesWrapperLegacy, "edge-bundles",
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"Bundle Machine CFG Edges",
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/* cfg = */ true, /* is_analysis = */ true)
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char &llvm::EdgeBundlesWrapperLegacyID = EdgeBundlesWrapperLegacy::ID;
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void EdgeBundlesWrapperLegacy::getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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MachineFunctionPass::getAnalysisUsage(AU);
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}
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AnalysisKey EdgeBundlesAnalysis::Key;
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EdgeBundles EdgeBundlesAnalysis::run(MachineFunction &MF,
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MachineFunctionAnalysisManager &MFAM) {
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EdgeBundles Impl(MF);
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return Impl;
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}
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bool EdgeBundlesWrapperLegacy::runOnMachineFunction(MachineFunction &MF) {
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Impl.reset(new EdgeBundles(MF));
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return false;
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}
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EdgeBundles::EdgeBundles(MachineFunction &MF) : MF(&MF) { init(); }
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void EdgeBundles::init() {
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EC.clear();
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EC.grow(2 * MF->getNumBlockIDs());
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for (const auto &MBB : *MF) {
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unsigned OutE = 2 * MBB.getNumber() + 1;
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// Join the outgoing bundle with the ingoing bundles of all successors.
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for (const MachineBasicBlock *Succ : MBB.successors())
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EC.join(OutE, 2 * Succ->getNumber());
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}
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EC.compress();
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if (ViewEdgeBundles)
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view();
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// Compute the reverse mapping.
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Blocks.clear();
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Blocks.resize(getNumBundles());
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for (unsigned i = 0, e = MF->getNumBlockIDs(); i != e; ++i) {
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unsigned b0 = getBundle(i, false);
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unsigned b1 = getBundle(i, true);
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Blocks[b0].push_back(i);
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if (b1 != b0)
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Blocks[b1].push_back(i);
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}
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}
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namespace llvm {
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/// Specialize WriteGraph, the standard implementation won't work.
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template<>
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raw_ostream &WriteGraph<>(raw_ostream &O, const EdgeBundles &G,
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bool ShortNames,
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const Twine &Title) {
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const MachineFunction *MF = G.getMachineFunction();
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O << "digraph {\n";
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for (const auto &MBB : *MF) {
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unsigned BB = MBB.getNumber();
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O << "\t\"" << printMBBReference(MBB) << "\" [ shape=box, label=\""
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<< printMBBReference(MBB) << "\" ]\n"
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<< '\t' << G.getBundle(BB, false) << " -> \"" << printMBBReference(MBB)
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<< "\"\n"
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<< "\t\"" << printMBBReference(MBB) << "\" -> " << G.getBundle(BB, true)
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<< '\n';
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for (const MachineBasicBlock *Succ : MBB.successors())
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O << "\t\"" << printMBBReference(MBB) << "\" -> \""
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<< printMBBReference(*Succ) << "\" [ color=lightgray ]\n";
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}
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O << "}\n";
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return O;
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}
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} // end namespace llvm
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/// view - Visualize the annotated bipartite CFG with Graphviz.
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void EdgeBundles::view() const {
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ViewGraph(*this, "EdgeBundles");
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}
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bool EdgeBundles::invalidate(MachineFunction &MF, const PreservedAnalyses &PA,
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MachineFunctionAnalysisManager::Invalidator &Inv) {
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// Invalidated when CFG is not preserved
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auto PAC = PA.getChecker<EdgeBundlesAnalysis>();
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return !PAC.preserved() && !PAC.preservedSet<CFGAnalyses>() &&
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!PAC.preservedSet<AllAnalysesOn<MachineFunction>>();
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}
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