diff options
author | dim <dim@FreeBSD.org> | 2017-04-02 17:24:58 +0000 |
---|---|---|
committer | dim <dim@FreeBSD.org> | 2017-04-02 17:24:58 +0000 |
commit | 60b571e49a90d38697b3aca23020d9da42fc7d7f (patch) | |
tree | 99351324c24d6cb146b6285b6caffa4d26fce188 /contrib/llvm/lib/CodeGen/MachineModuleInfo.cpp | |
parent | bea1b22c7a9bce1dfdd73e6e5b65bc4752215180 (diff) | |
download | FreeBSD-src-60b571e49a90d38697b3aca23020d9da42fc7d7f.zip FreeBSD-src-60b571e49a90d38697b3aca23020d9da42fc7d7f.tar.gz |
Update clang, llvm, lld, lldb, compiler-rt and libc++ to 4.0.0 release:
MFC r309142 (by emaste):
Add WITH_LLD_AS_LD build knob
If set it installs LLD as /usr/bin/ld. LLD (as of version 3.9) is not
capable of linking the world and kernel, but can self-host and link many
substantial applications. GNU ld continues to be used for the world and
kernel build, regardless of how this knob is set.
It is on by default for arm64, and off for all other CPU architectures.
Sponsored by: The FreeBSD Foundation
MFC r310840:
Reapply 310775, now it also builds correctly if lldb is disabled:
Move llvm-objdump from CLANG_EXTRAS to installed by default
We currently install three tools from binutils 2.17.50: as, ld, and
objdump. Work is underway to migrate to a permissively-licensed
tool-chain, with one goal being the retirement of binutils 2.17.50.
LLVM's llvm-objdump is intended to be compatible with GNU objdump
although it is currently missing some options and may have formatting
differences. Enable it by default for testing and further investigation.
It may later be changed to install as /usr/bin/objdump, it becomes a
fully viable replacement.
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D8879
MFC r312855 (by emaste):
Rename LLD_AS_LD to LLD_IS_LD, for consistency with CLANG_IS_CC
Reported by: Dan McGregor <dan.mcgregor usask.ca>
MFC r313559 | glebius | 2017-02-10 18:34:48 +0100 (Fri, 10 Feb 2017) | 5 lines
Don't check struct rtentry on FreeBSD, it is an internal kernel structure.
On other systems it may be API structure for SIOCADDRT/SIOCDELRT.
Reviewed by: emaste, dim
MFC r314152 (by jkim):
Remove an assembler flag, which is redundant since r309124. The upstream
took care of it by introducing a macro NO_EXEC_STACK_DIRECTIVE.
http://llvm.org/viewvc/llvm-project?rev=273500&view=rev
Reviewed by: dim
MFC r314564:
Upgrade our copies of clang, llvm, lld, lldb, compiler-rt and libc++ to
4.0.0 (branches/release_40 296509). The release will follow soon.
Please note that from 3.5.0 onwards, clang, llvm and lldb require C++11
support to build; see UPDATING for more information.
Also note that as of 4.0.0, lld should be able to link the base system
on amd64 and aarch64. See the WITH_LLD_IS_LLD setting in src.conf(5).
Though please be aware that this is work in progress.
Release notes for llvm, clang and lld will be available here:
<http://releases.llvm.org/4.0.0/docs/ReleaseNotes.html>
<http://releases.llvm.org/4.0.0/tools/clang/docs/ReleaseNotes.html>
<http://releases.llvm.org/4.0.0/tools/lld/docs/ReleaseNotes.html>
Thanks to Ed Maste, Jan Beich, Antoine Brodin and Eric Fiselier for
their help.
Relnotes: yes
Exp-run: antoine
PR: 215969, 216008
MFC r314708:
For now, revert r287232 from upstream llvm trunk (by Daniil Fukalov):
[SCEV] limit recursion depth of CompareSCEVComplexity
Summary:
CompareSCEVComplexity goes too deep (50+ on a quite a big unrolled
loop) and runs almost infinite time.
Added cache of "equal" SCEV pairs to earlier cutoff of further
estimation. Recursion depth limit was also introduced as a parameter.
Reviewers: sanjoy
Subscribers: mzolotukhin, tstellarAMD, llvm-commits
Differential Revision: https://reviews.llvm.org/D26389
This commit is the cause of excessive compile times on skein_block.c
(and possibly other files) during kernel builds on amd64.
We never saw the problematic behavior described in this upstream commit,
so for now it is better to revert it. An upstream bug has been filed
here: https://bugs.llvm.org/show_bug.cgi?id=32142
Reported by: mjg
MFC r314795:
Reapply r287232 from upstream llvm trunk (by Daniil Fukalov):
[SCEV] limit recursion depth of CompareSCEVComplexity
Summary:
CompareSCEVComplexity goes too deep (50+ on a quite a big unrolled
loop) and runs almost infinite time.
Added cache of "equal" SCEV pairs to earlier cutoff of further
estimation. Recursion depth limit was also introduced as a parameter.
Reviewers: sanjoy
Subscribers: mzolotukhin, tstellarAMD, llvm-commits
Differential Revision: https://reviews.llvm.org/D26389
Pull in r296992 from upstream llvm trunk (by Sanjoy Das):
[SCEV] Decrease the recursion threshold for CompareValueComplexity
Fixes PR32142.
r287232 accidentally increased the recursion threshold for
CompareValueComplexity from 2 to 32. This change reverses that
change by introducing a separate flag for CompareValueComplexity's
threshold.
The latter revision fixes the excessive compile times for skein_block.c.
MFC r314907 | mmel | 2017-03-08 12:40:27 +0100 (Wed, 08 Mar 2017) | 7 lines
Unbreak ARMv6 world.
The new compiler_rt library imported with clang 4.0.0 have several fatal
issues (non-functional __udivsi3 for example) with ARM specific instrict
functions. As temporary workaround, until upstream solve these problems,
disable all thumb[1][2] related feature.
MFC r315016:
Update clang, llvm, lld, lldb, compiler-rt and libc++ to 4.0.0 release.
We were already very close to the last release candidate, so this is a
pretty minor update.
Relnotes: yes
MFC r316005:
Revert r314907, and pull in r298713 from upstream compiler-rt trunk (by
Weiming Zhao):
builtins: Select correct code fragments when compiling for Thumb1/Thum2/ARM ISA.
Summary:
Value of __ARM_ARCH_ISA_THUMB isn't based on the actual compilation
mode (-mthumb, -marm), it reflect's capability of given CPU.
Due to this:
- use __tbumb__ and __thumb2__ insteand of __ARM_ARCH_ISA_THUMB
- use '.thumb' directive consistently in all affected files
- decorate all thumb functions using
DEFINE_COMPILERRT_THUMB_FUNCTION()
---------
Note: This patch doesn't fix broken Thumb1 variant of __udivsi3 !
Reviewers: weimingz, rengolin, compnerd
Subscribers: aemerson, dim
Differential Revision: https://reviews.llvm.org/D30938
Discussed with: mmel
Diffstat (limited to 'contrib/llvm/lib/CodeGen/MachineModuleInfo.cpp')
-rw-r--r-- | contrib/llvm/lib/CodeGen/MachineModuleInfo.cpp | 305 |
1 files changed, 89 insertions, 216 deletions
diff --git a/contrib/llvm/lib/CodeGen/MachineModuleInfo.cpp b/contrib/llvm/lib/CodeGen/MachineModuleInfo.cpp index 244e3fb..6618857 100644 --- a/contrib/llvm/lib/CodeGen/MachineModuleInfo.cpp +++ b/contrib/llvm/lib/CodeGen/MachineModuleInfo.cpp @@ -9,26 +9,31 @@ #include "llvm/CodeGen/MachineModuleInfo.h" #include "llvm/ADT/PointerUnion.h" +#include "llvm/ADT/PostOrderIterator.h" #include "llvm/ADT/TinyPtrVector.h" #include "llvm/Analysis/EHPersonalities.h" #include "llvm/Analysis/ValueTracking.h" #include "llvm/CodeGen/MachineFunction.h" +#include "llvm/CodeGen/MachineFunctionInitializer.h" #include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/Passes.h" #include "llvm/IR/Constants.h" #include "llvm/IR/DerivedTypes.h" #include "llvm/IR/GlobalVariable.h" +#include "llvm/IR/Instructions.h" #include "llvm/IR/Module.h" #include "llvm/MC/MCObjectFileInfo.h" #include "llvm/MC/MCSymbol.h" #include "llvm/Support/Dwarf.h" #include "llvm/Support/ErrorHandling.h" +#include "llvm/Target/TargetLoweringObjectFile.h" +#include "llvm/Target/TargetMachine.h" using namespace llvm; using namespace llvm::dwarf; // Handle the Pass registration stuff necessary to use DataLayout's. -INITIALIZE_PASS(MachineModuleInfo, "machinemoduleinfo", - "Machine Module Information", false, false) +INITIALIZE_TM_PASS(MachineModuleInfo, "machinemoduleinfo", + "Machine Module Information", false, false) char MachineModuleInfo::ID = 0; // Out of line virtual method. @@ -54,7 +59,7 @@ public: class MMIAddrLabelMap { MCContext &Context; struct AddrLabelSymEntry { - /// Symbols - The symbols for the label. + /// The symbols for the label. TinyPtrVector<MCSymbol *> Symbols; Function *Fn; // The containing function of the BasicBlock. @@ -63,14 +68,13 @@ class MMIAddrLabelMap { DenseMap<AssertingVH<BasicBlock>, AddrLabelSymEntry> AddrLabelSymbols; - /// BBCallbacks - Callbacks for the BasicBlock's that we have entries for. We - /// use this so we get notified if a block is deleted or RAUWd. + /// Callbacks for the BasicBlock's that we have entries for. We use this so + /// we get notified if a block is deleted or RAUWd. std::vector<MMIAddrLabelMapCallbackPtr> BBCallbacks; - /// DeletedAddrLabelsNeedingEmission - This is a per-function list of symbols - /// whose corresponding BasicBlock got deleted. These symbols need to be - /// emitted at some point in the file, so AsmPrinter emits them after the - /// function body. + /// This is a per-function list of symbols whose corresponding BasicBlock got + /// deleted. These symbols need to be emitted at some point in the file, so + /// AsmPrinter emits them after the function body. DenseMap<AssertingVH<Function>, std::vector<MCSymbol*> > DeletedAddrLabelsNeedingEmission; public: @@ -112,8 +116,7 @@ ArrayRef<MCSymbol *> MMIAddrLabelMap::getAddrLabelSymbolToEmit(BasicBlock *BB) { return Entry.Symbols; } -/// takeDeletedSymbolsForFunction - If we have any deleted symbols for F, return -/// them. +/// If we have any deleted symbols for F, return them. void MMIAddrLabelMap:: takeDeletedSymbolsForFunction(Function *F, std::vector<MCSymbol*> &Result) { DenseMap<AssertingVH<Function>, std::vector<MCSymbol*> >::iterator I = @@ -186,20 +189,13 @@ void MMIAddrLabelMapCallbackPtr::allUsesReplacedWith(Value *V2) { //===----------------------------------------------------------------------===// -MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI, - const MCRegisterInfo &MRI, - const MCObjectFileInfo *MOFI) - : ImmutablePass(ID), Context(&MAI, &MRI, MOFI, nullptr, false) { +MachineModuleInfo::MachineModuleInfo(const TargetMachine *TM) + : ImmutablePass(ID), TM(*TM), + Context(TM->getMCAsmInfo(), TM->getMCRegisterInfo(), + TM->getObjFileLowering(), nullptr, false) { initializeMachineModuleInfoPass(*PassRegistry::getPassRegistry()); } -MachineModuleInfo::MachineModuleInfo() - : ImmutablePass(ID), Context(nullptr, nullptr, nullptr) { - llvm_unreachable("This MachineModuleInfo constructor should never be called, " - "MMI should always be explicitly constructed by " - "LLVMTargetMachine"); -} - MachineModuleInfo::~MachineModuleInfo() { } @@ -207,13 +203,9 @@ bool MachineModuleInfo::doInitialization(Module &M) { ObjFileMMI = nullptr; CurCallSite = 0; - CallsEHReturn = false; - CallsUnwindInit = false; - HasEHFunclets = false; DbgInfoAvailable = UsesVAFloatArgument = UsesMorestackAddr = false; - PersonalityTypeCache = EHPersonality::Unknown; AddrLabelSymbols = nullptr; - TheModule = nullptr; + TheModule = &M; return false; } @@ -233,30 +225,8 @@ bool MachineModuleInfo::doFinalization(Module &M) { return false; } -/// EndFunction - Discard function meta information. -/// -void MachineModuleInfo::EndFunction() { - // Clean up frame info. - FrameInstructions.clear(); - - // Clean up exception info. - LandingPads.clear(); - PersonalityTypeCache = EHPersonality::Unknown; - CallSiteMap.clear(); - TypeInfos.clear(); - FilterIds.clear(); - FilterEnds.clear(); - CallsEHReturn = false; - CallsUnwindInit = false; - HasEHFunclets = false; - VariableDbgInfos.clear(); -} - //===- Address of Block Management ----------------------------------------===// -/// getAddrLabelSymbolToEmit - Return the symbol to be used for the specified -/// basic block when its address is taken. If other blocks were RAUW'd to -/// this one, we may have to emit them as well, return the whole set. ArrayRef<MCSymbol *> MachineModuleInfo::getAddrLabelSymbolToEmit(const BasicBlock *BB) { // Lazily create AddrLabelSymbols. @@ -265,11 +235,6 @@ MachineModuleInfo::getAddrLabelSymbolToEmit(const BasicBlock *BB) { return AddrLabelSymbols->getAddrLabelSymbolToEmit(const_cast<BasicBlock*>(BB)); } - -/// takeDeletedSymbolsForFunction - If the specified function has had any -/// references to address-taken blocks generated, but the block got deleted, -/// return the symbol now so we can emit it. This prevents emitting a -/// reference to a symbol that has no definition. void MachineModuleInfo:: takeDeletedSymbolsForFunction(const Function *F, std::vector<MCSymbol*> &Result) { @@ -279,40 +244,8 @@ takeDeletedSymbolsForFunction(const Function *F, takeDeletedSymbolsForFunction(const_cast<Function*>(F), Result); } -//===- EH -----------------------------------------------------------------===// - -/// getOrCreateLandingPadInfo - Find or create an LandingPadInfo for the -/// specified MachineBasicBlock. -LandingPadInfo &MachineModuleInfo::getOrCreateLandingPadInfo - (MachineBasicBlock *LandingPad) { - unsigned N = LandingPads.size(); - for (unsigned i = 0; i < N; ++i) { - LandingPadInfo &LP = LandingPads[i]; - if (LP.LandingPadBlock == LandingPad) - return LP; - } - - LandingPads.push_back(LandingPadInfo(LandingPad)); - return LandingPads[N]; -} - -/// addInvoke - Provide the begin and end labels of an invoke style call and -/// associate it with a try landing pad block. -void MachineModuleInfo::addInvoke(MachineBasicBlock *LandingPad, - MCSymbol *BeginLabel, MCSymbol *EndLabel) { - LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); - LP.BeginLabels.push_back(BeginLabel); - LP.EndLabels.push_back(EndLabel); -} - -/// addLandingPad - Provide the label of a try LandingPad block. -/// -MCSymbol *MachineModuleInfo::addLandingPad(MachineBasicBlock *LandingPad) { - MCSymbol *LandingPadLabel = Context.createTempSymbol(); - LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); - LP.LandingPadLabel = LandingPadLabel; - return LandingPadLabel; -} +/// \name Exception Handling +/// \{ void MachineModuleInfo::addPersonality(const Function *Personality) { for (unsigned i = 0; i < Personalities.size(); ++i) @@ -321,143 +254,83 @@ void MachineModuleInfo::addPersonality(const Function *Personality) { Personalities.push_back(Personality); } -/// addCatchTypeInfo - Provide the catch typeinfo for a landing pad. -/// -void MachineModuleInfo:: -addCatchTypeInfo(MachineBasicBlock *LandingPad, - ArrayRef<const GlobalValue *> TyInfo) { - LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); - for (unsigned N = TyInfo.size(); N; --N) - LP.TypeIds.push_back(getTypeIDFor(TyInfo[N - 1])); -} - -/// addFilterTypeInfo - Provide the filter typeinfo for a landing pad. -/// -void MachineModuleInfo:: -addFilterTypeInfo(MachineBasicBlock *LandingPad, - ArrayRef<const GlobalValue *> TyInfo) { - LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); - std::vector<unsigned> IdsInFilter(TyInfo.size()); - for (unsigned I = 0, E = TyInfo.size(); I != E; ++I) - IdsInFilter[I] = getTypeIDFor(TyInfo[I]); - LP.TypeIds.push_back(getFilterIDFor(IdsInFilter)); -} - -/// addCleanup - Add a cleanup action for a landing pad. -/// -void MachineModuleInfo::addCleanup(MachineBasicBlock *LandingPad) { - LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); - LP.TypeIds.push_back(0); -} +/// \} + +MachineFunction &MachineModuleInfo::getMachineFunction(const Function &F) { + // Shortcut for the common case where a sequence of MachineFunctionPasses + // all query for the same Function. + if (LastRequest == &F) + return *LastResult; + + auto I = MachineFunctions.insert( + std::make_pair(&F, std::unique_ptr<MachineFunction>())); + MachineFunction *MF; + if (I.second) { + // No pre-existing machine function, create a new one. + MF = new MachineFunction(&F, TM, NextFnNum++, *this); + // Update the set entry. + I.first->second.reset(MF); + + if (MFInitializer) + if (MFInitializer->initializeMachineFunction(*MF)) + report_fatal_error("Unable to initialize machine function"); + } else { + MF = I.first->second.get(); + } -void MachineModuleInfo::addSEHCatchHandler(MachineBasicBlock *LandingPad, - const Function *Filter, - const BlockAddress *RecoverBA) { - LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); - SEHHandler Handler; - Handler.FilterOrFinally = Filter; - Handler.RecoverBA = RecoverBA; - LP.SEHHandlers.push_back(Handler); + LastRequest = &F; + LastResult = MF; + return *MF; } -void MachineModuleInfo::addSEHCleanupHandler(MachineBasicBlock *LandingPad, - const Function *Cleanup) { - LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); - SEHHandler Handler; - Handler.FilterOrFinally = Cleanup; - Handler.RecoverBA = nullptr; - LP.SEHHandlers.push_back(Handler); +void MachineModuleInfo::deleteMachineFunctionFor(Function &F) { + MachineFunctions.erase(&F); + LastRequest = nullptr; + LastResult = nullptr; } -/// TidyLandingPads - Remap landing pad labels and remove any deleted landing -/// pads. -void MachineModuleInfo::TidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap) { - for (unsigned i = 0; i != LandingPads.size(); ) { - LandingPadInfo &LandingPad = LandingPads[i]; - if (LandingPad.LandingPadLabel && - !LandingPad.LandingPadLabel->isDefined() && - (!LPMap || (*LPMap)[LandingPad.LandingPadLabel] == 0)) - LandingPad.LandingPadLabel = nullptr; - - // Special case: we *should* emit LPs with null LP MBB. This indicates - // "nounwind" case. - if (!LandingPad.LandingPadLabel && LandingPad.LandingPadBlock) { - LandingPads.erase(LandingPads.begin() + i); - continue; - } - - for (unsigned j = 0, e = LandingPads[i].BeginLabels.size(); j != e; ++j) { - MCSymbol *BeginLabel = LandingPad.BeginLabels[j]; - MCSymbol *EndLabel = LandingPad.EndLabels[j]; - if ((BeginLabel->isDefined() || - (LPMap && (*LPMap)[BeginLabel] != 0)) && - (EndLabel->isDefined() || - (LPMap && (*LPMap)[EndLabel] != 0))) continue; - - LandingPad.BeginLabels.erase(LandingPad.BeginLabels.begin() + j); - LandingPad.EndLabels.erase(LandingPad.EndLabels.begin() + j); - --j; - --e; - } - - // Remove landing pads with no try-ranges. - if (LandingPads[i].BeginLabels.empty()) { - LandingPads.erase(LandingPads.begin() + i); - continue; - } +namespace { +/// This pass frees the MachineFunction object associated with a Function. +class FreeMachineFunction : public FunctionPass { +public: + static char ID; + FreeMachineFunction() : FunctionPass(ID) {} - // If there is no landing pad, ensure that the list of typeids is empty. - // If the only typeid is a cleanup, this is the same as having no typeids. - if (!LandingPad.LandingPadBlock || - (LandingPad.TypeIds.size() == 1 && !LandingPad.TypeIds[0])) - LandingPad.TypeIds.clear(); - ++i; + void getAnalysisUsage(AnalysisUsage &AU) const override { + AU.addRequired<MachineModuleInfo>(); + AU.addPreserved<MachineModuleInfo>(); } -} -/// setCallSiteLandingPad - Map the landing pad's EH symbol to the call site -/// indexes. -void MachineModuleInfo::setCallSiteLandingPad(MCSymbol *Sym, - ArrayRef<unsigned> Sites) { - LPadToCallSiteMap[Sym].append(Sites.begin(), Sites.end()); -} - -/// getTypeIDFor - Return the type id for the specified typeinfo. This is -/// function wide. -unsigned MachineModuleInfo::getTypeIDFor(const GlobalValue *TI) { - for (unsigned i = 0, N = TypeInfos.size(); i != N; ++i) - if (TypeInfos[i] == TI) return i + 1; + bool runOnFunction(Function &F) override { + MachineModuleInfo &MMI = getAnalysis<MachineModuleInfo>(); + MMI.deleteMachineFunctionFor(F); + return true; + } +}; +char FreeMachineFunction::ID; +} // end anonymous namespace - TypeInfos.push_back(TI); - return TypeInfos.size(); +namespace llvm { +FunctionPass *createFreeMachineFunctionPass() { + return new FreeMachineFunction(); } - -/// getFilterIDFor - Return the filter id for the specified typeinfos. This is -/// function wide. -int MachineModuleInfo::getFilterIDFor(std::vector<unsigned> &TyIds) { - // If the new filter coincides with the tail of an existing filter, then - // re-use the existing filter. Folding filters more than this requires - // re-ordering filters and/or their elements - probably not worth it. - for (std::vector<unsigned>::iterator I = FilterEnds.begin(), - E = FilterEnds.end(); I != E; ++I) { - unsigned i = *I, j = TyIds.size(); - - while (i && j) - if (FilterIds[--i] != TyIds[--j]) - goto try_next; - - if (!j) - // The new filter coincides with range [i, end) of the existing filter. - return -(1 + i); - -try_next:; +} // end namespace llvm + +//===- MMI building helpers -----------------------------------------------===// + +void llvm::computeUsesVAFloatArgument(const CallInst &I, + MachineModuleInfo &MMI) { + FunctionType *FT = + cast<FunctionType>(I.getCalledValue()->getType()->getContainedType(0)); + if (FT->isVarArg() && !MMI.usesVAFloatArgument()) { + for (unsigned i = 0, e = I.getNumArgOperands(); i != e; ++i) { + Type *T = I.getArgOperand(i)->getType(); + for (auto i : post_order(T)) { + if (i->isFloatingPointTy()) { + MMI.setUsesVAFloatArgument(true); + return; + } + } + } } - - // Add the new filter. - int FilterID = -(1 + FilterIds.size()); - FilterIds.reserve(FilterIds.size() + TyIds.size() + 1); - FilterIds.insert(FilterIds.end(), TyIds.begin(), TyIds.end()); - FilterEnds.push_back(FilterIds.size()); - FilterIds.push_back(0); // terminator - return FilterID; } |