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authorpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
committerpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
commitb64793999546ed8adebaeebd9d8345d18db8927d (patch)
tree4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/lib/Analysis/RegionInfo.cpp
parentAdd support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff)
downloadwireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz
wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/lib/Analysis/RegionInfo.cpp')
-rw-r--r--gnu/llvm/lib/Analysis/RegionInfo.cpp216
1 files changed, 0 insertions, 216 deletions
diff --git a/gnu/llvm/lib/Analysis/RegionInfo.cpp b/gnu/llvm/lib/Analysis/RegionInfo.cpp
deleted file mode 100644
index 2bd611350f4..00000000000
--- a/gnu/llvm/lib/Analysis/RegionInfo.cpp
+++ /dev/null
@@ -1,216 +0,0 @@
-//===- RegionInfo.cpp - SESE region detection analysis --------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-// Detects single entry single exit regions in the control flow graph.
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Analysis/RegionInfo.h"
-#include "llvm/ADT/Statistic.h"
-#ifndef NDEBUG
-#include "llvm/Analysis/RegionPrinter.h"
-#endif
-#include "llvm/Analysis/RegionInfoImpl.h"
-#include "llvm/Config/llvm-config.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/PassManager.h"
-#include "llvm/Pass.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace llvm;
-
-#define DEBUG_TYPE "region"
-
-namespace llvm {
-
-template class RegionBase<RegionTraits<Function>>;
-template class RegionNodeBase<RegionTraits<Function>>;
-template class RegionInfoBase<RegionTraits<Function>>;
-
-} // end namespace llvm
-
-STATISTIC(numRegions, "The # of regions");
-STATISTIC(numSimpleRegions, "The # of simple regions");
-
-// Always verify if expensive checking is enabled.
-
-static cl::opt<bool,true>
-VerifyRegionInfoX(
- "verify-region-info",
- cl::location(RegionInfoBase<RegionTraits<Function>>::VerifyRegionInfo),
- cl::desc("Verify region info (time consuming)"));
-
-static cl::opt<Region::PrintStyle, true> printStyleX("print-region-style",
- cl::location(RegionInfo::printStyle),
- cl::Hidden,
- cl::desc("style of printing regions"),
- cl::values(
- clEnumValN(Region::PrintNone, "none", "print no details"),
- clEnumValN(Region::PrintBB, "bb",
- "print regions in detail with block_iterator"),
- clEnumValN(Region::PrintRN, "rn",
- "print regions in detail with element_iterator")));
-
-//===----------------------------------------------------------------------===//
-// Region implementation
-//
-
-Region::Region(BasicBlock *Entry, BasicBlock *Exit,
- RegionInfo* RI,
- DominatorTree *DT, Region *Parent) :
- RegionBase<RegionTraits<Function>>(Entry, Exit, RI, DT, Parent) {
-
-}
-
-Region::~Region() = default;
-
-//===----------------------------------------------------------------------===//
-// RegionInfo implementation
-//
-
-RegionInfo::RegionInfo() = default;
-
-RegionInfo::~RegionInfo() = default;
-
-bool RegionInfo::invalidate(Function &F, const PreservedAnalyses &PA,
- FunctionAnalysisManager::Invalidator &) {
- // Check whether the analysis, all analyses on functions, or the function's
- // CFG has been preserved.
- auto PAC = PA.getChecker<RegionInfoAnalysis>();
- return !(PAC.preserved() || PAC.preservedSet<AllAnalysesOn<Function>>() ||
- PAC.preservedSet<CFGAnalyses>());
-}
-
-void RegionInfo::updateStatistics(Region *R) {
- ++numRegions;
-
- // TODO: Slow. Should only be enabled if -stats is used.
- if (R->isSimple())
- ++numSimpleRegions;
-}
-
-void RegionInfo::recalculate(Function &F, DominatorTree *DT_,
- PostDominatorTree *PDT_, DominanceFrontier *DF_) {
- DT = DT_;
- PDT = PDT_;
- DF = DF_;
-
- TopLevelRegion = new Region(&F.getEntryBlock(), nullptr,
- this, DT, nullptr);
- updateStatistics(TopLevelRegion);
- calculate(F);
-}
-
-#ifndef NDEBUG
-void RegionInfo::view() { viewRegion(this); }
-
-void RegionInfo::viewOnly() { viewRegionOnly(this); }
-#endif
-
-//===----------------------------------------------------------------------===//
-// RegionInfoPass implementation
-//
-
-RegionInfoPass::RegionInfoPass() : FunctionPass(ID) {
- initializeRegionInfoPassPass(*PassRegistry::getPassRegistry());
-}
-
-RegionInfoPass::~RegionInfoPass() = default;
-
-bool RegionInfoPass::runOnFunction(Function &F) {
- releaseMemory();
-
- auto DT = &getAnalysis<DominatorTreeWrapperPass>().getDomTree();
- auto PDT = &getAnalysis<PostDominatorTreeWrapperPass>().getPostDomTree();
- auto DF = &getAnalysis<DominanceFrontierWrapperPass>().getDominanceFrontier();
-
- RI.recalculate(F, DT, PDT, DF);
- return false;
-}
-
-void RegionInfoPass::releaseMemory() {
- RI.releaseMemory();
-}
-
-void RegionInfoPass::verifyAnalysis() const {
- RI.verifyAnalysis();
-}
-
-void RegionInfoPass::getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
- AU.addRequiredTransitive<DominatorTreeWrapperPass>();
- AU.addRequired<PostDominatorTreeWrapperPass>();
- AU.addRequired<DominanceFrontierWrapperPass>();
-}
-
-void RegionInfoPass::print(raw_ostream &OS, const Module *) const {
- RI.print(OS);
-}
-
-#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
-LLVM_DUMP_METHOD void RegionInfoPass::dump() const {
- RI.dump();
-}
-#endif
-
-char RegionInfoPass::ID = 0;
-
-INITIALIZE_PASS_BEGIN(RegionInfoPass, "regions",
- "Detect single entry single exit regions", true, true)
-INITIALIZE_PASS_DEPENDENCY(DominatorTreeWrapperPass)
-INITIALIZE_PASS_DEPENDENCY(PostDominatorTreeWrapperPass)
-INITIALIZE_PASS_DEPENDENCY(DominanceFrontierWrapperPass)
-INITIALIZE_PASS_END(RegionInfoPass, "regions",
- "Detect single entry single exit regions", true, true)
-
-// Create methods available outside of this file, to use them
-// "include/llvm/LinkAllPasses.h". Otherwise the pass would be deleted by
-// the link time optimization.
-
-namespace llvm {
-
- FunctionPass *createRegionInfoPass() {
- return new RegionInfoPass();
- }
-
-} // end namespace llvm
-
-//===----------------------------------------------------------------------===//
-// RegionInfoAnalysis implementation
-//
-
-AnalysisKey RegionInfoAnalysis::Key;
-
-RegionInfo RegionInfoAnalysis::run(Function &F, FunctionAnalysisManager &AM) {
- RegionInfo RI;
- auto *DT = &AM.getResult<DominatorTreeAnalysis>(F);
- auto *PDT = &AM.getResult<PostDominatorTreeAnalysis>(F);
- auto *DF = &AM.getResult<DominanceFrontierAnalysis>(F);
-
- RI.recalculate(F, DT, PDT, DF);
- return RI;
-}
-
-RegionInfoPrinterPass::RegionInfoPrinterPass(raw_ostream &OS)
- : OS(OS) {}
-
-PreservedAnalyses RegionInfoPrinterPass::run(Function &F,
- FunctionAnalysisManager &AM) {
- OS << "Region Tree for function: " << F.getName() << "\n";
- AM.getResult<RegionInfoAnalysis>(F).print(OS);
-
- return PreservedAnalyses::all();
-}
-
-PreservedAnalyses RegionInfoVerifierPass::run(Function &F,
- FunctionAnalysisManager &AM) {
- AM.getResult<RegionInfoAnalysis>(F).verifyAnalysis();
-
- return PreservedAnalyses::all();
-}