mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-30 19:29:20 +00:00
d04a8d4b33
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
116 lines
3.9 KiB
C++
116 lines
3.9 KiB
C++
//===-- CodeGen/AsmPrinter/Win64Exception.cpp - Dwarf 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 Win64 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/DataLayout.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/Module.h"
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#include "llvm/Support/Dwarf.h"
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#include "llvm/Support/ErrorHandling.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/TargetLoweringObjectFile.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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Win64Exception::Win64Exception(AsmPrinter *A)
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: DwarfException(A),
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shouldEmitPersonality(false), shouldEmitLSDA(false), shouldEmitMoves(false)
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{}
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Win64Exception::~Win64Exception() {}
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/// EndModule - Emit all exception information that should come after the
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/// content.
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void Win64Exception::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 Win64Exception::BeginFunction(const MachineFunction *MF) {
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shouldEmitMoves = shouldEmitPersonality = shouldEmitLSDA = false;
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// If any landing pads survive, we need an EH table.
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bool hasLandingPads = !MMI->getLandingPads().empty();
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shouldEmitMoves = Asm->needsSEHMoves();
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const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
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unsigned PerEncoding = TLOF.getPersonalityEncoding();
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const Function *Per = MMI->getPersonalities()[MMI->getPersonalityIndex()];
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shouldEmitPersonality = hasLandingPads &&
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PerEncoding != dwarf::DW_EH_PE_omit && Per;
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unsigned LSDAEncoding = TLOF.getLSDAEncoding();
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shouldEmitLSDA = shouldEmitPersonality &&
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LSDAEncoding != dwarf::DW_EH_PE_omit;
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if (!shouldEmitPersonality && !shouldEmitMoves)
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return;
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Asm->OutStreamer.EmitWin64EHStartProc(Asm->CurrentFnSym);
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if (!shouldEmitPersonality)
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return;
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MCSymbol *GCCHandlerSym =
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Asm->GetExternalSymbolSymbol("_GCC_specific_handler");
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Asm->OutStreamer.EmitWin64EHHandler(GCCHandlerSym, true, true);
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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 Win64Exception::EndFunction() {
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if (!shouldEmitPersonality && !shouldEmitMoves)
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return;
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Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_end",
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Asm->getFunctionNumber()));
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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 (shouldEmitPersonality) {
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const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
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const Function *Per = MMI->getPersonalities()[MMI->getPersonalityIndex()];
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const MCSymbol *Sym = TLOF.getCFIPersonalitySymbol(Per, Asm->Mang, MMI);
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Asm->OutStreamer.PushSection();
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Asm->OutStreamer.EmitWin64EHHandlerData();
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Asm->OutStreamer.EmitValue(MCSymbolRefExpr::Create(Sym, Asm->OutContext),
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4);
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EmitExceptionTable();
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Asm->OutStreamer.PopSection();
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}
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Asm->OutStreamer.EmitWin64EHEndProc();
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}
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