mirror of
https://github.com/c64scene-ar/llvm-6502.git
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0b8c9a80f2
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
138 lines
4.5 KiB
C++
138 lines
4.5 KiB
C++
//===-- CodeGen/AsmPrinter/ARMException.cpp - ARM EHABI Exception Impl ----===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains support for writing DWARF exception info into asm files.
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//
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//===----------------------------------------------------------------------===//
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#include "DwarfException.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/CodeGen/MachineFrameInfo.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineModuleInfo.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/IR/Module.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCSection.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/MC/MCSymbol.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Dwarf.h"
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#include "llvm/Support/FormattedStream.h"
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#include "llvm/Target/Mangler.h"
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#include "llvm/Target/TargetFrameLowering.h"
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Target/TargetOptions.h"
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#include "llvm/Target/TargetRegisterInfo.h"
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using namespace llvm;
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cl::opt<bool>
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EnableARMEHABIDescriptors("arm-enable-ehabi-descriptors", cl::Hidden,
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cl::desc("Generate ARM EHABI tables with unwinding descriptors"),
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cl::init(false));
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ARMException::ARMException(AsmPrinter *A)
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: DwarfException(A) {}
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ARMException::~ARMException() {}
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void ARMException::EndModule() {
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}
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/// BeginFunction - Gather pre-function exception information. Assumes it's
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/// being emitted immediately after the function entry point.
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void ARMException::BeginFunction(const MachineFunction *MF) {
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Asm->OutStreamer.EmitFnStart();
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if (Asm->MF->getFunction()->needsUnwindTableEntry())
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Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_begin",
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Asm->getFunctionNumber()));
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}
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/// EndFunction - Gather and emit post-function exception information.
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///
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void ARMException::EndFunction() {
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if (!Asm->MF->getFunction()->needsUnwindTableEntry())
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Asm->OutStreamer.EmitCantUnwind();
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else {
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Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_end",
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Asm->getFunctionNumber()));
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if (EnableARMEHABIDescriptors) {
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// Map all labels and get rid of any dead landing pads.
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MMI->TidyLandingPads();
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if (!MMI->getLandingPads().empty()) {
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// Emit references to personality.
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if (const Function * Personality =
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MMI->getPersonalities()[MMI->getPersonalityIndex()]) {
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MCSymbol *PerSym = Asm->Mang->getSymbol(Personality);
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Asm->OutStreamer.EmitSymbolAttribute(PerSym, MCSA_Global);
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Asm->OutStreamer.EmitPersonality(PerSym);
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}
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// Emit .handlerdata directive.
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Asm->OutStreamer.EmitHandlerData();
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// Emit actual exception table
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EmitExceptionTable();
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}
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}
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}
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Asm->OutStreamer.EmitFnEnd();
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}
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void ARMException::EmitTypeInfos(unsigned TTypeEncoding) {
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const std::vector<const GlobalVariable *> &TypeInfos = MMI->getTypeInfos();
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const std::vector<unsigned> &FilterIds = MMI->getFilterIds();
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bool VerboseAsm = Asm->OutStreamer.isVerboseAsm();
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int Entry = 0;
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// Emit the Catch TypeInfos.
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if (VerboseAsm && !TypeInfos.empty()) {
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Asm->OutStreamer.AddComment(">> Catch TypeInfos <<");
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Asm->OutStreamer.AddBlankLine();
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Entry = TypeInfos.size();
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}
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for (std::vector<const GlobalVariable *>::const_reverse_iterator
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I = TypeInfos.rbegin(), E = TypeInfos.rend(); I != E; ++I) {
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const GlobalVariable *GV = *I;
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if (VerboseAsm)
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Asm->OutStreamer.AddComment("TypeInfo " + Twine(Entry--));
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Asm->EmitTTypeReference(GV, TTypeEncoding);
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}
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// Emit the Exception Specifications.
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if (VerboseAsm && !FilterIds.empty()) {
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Asm->OutStreamer.AddComment(">> Filter TypeInfos <<");
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Asm->OutStreamer.AddBlankLine();
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Entry = 0;
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}
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for (std::vector<unsigned>::const_iterator
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I = FilterIds.begin(), E = FilterIds.end(); I < E; ++I) {
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unsigned TypeID = *I;
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if (VerboseAsm) {
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--Entry;
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if (TypeID != 0)
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Asm->OutStreamer.AddComment("FilterInfo " + Twine(Entry));
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}
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Asm->EmitTTypeReference((TypeID == 0 ? 0 : TypeInfos[TypeID - 1]),
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TTypeEncoding);
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}
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}
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