#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineLocation.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/Mangler.h"
-#include "llvm/Target/TargetData.h"
+#include "llvm/DataLayout.h"
#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetMachine.h"
/// BeginFunction - Gather pre-function exception information. Assumes it's
/// being emitted immediately after the function entry point.
void Win64Exception::BeginFunction(const MachineFunction *MF) {
+ shouldEmitMoves = shouldEmitPersonality = shouldEmitLSDA = false;
+
+ // If any landing pads survive, we need an EH table.
+ bool hasLandingPads = !MMI->getLandingPads().empty();
+
+ shouldEmitMoves = Asm->needsSEHMoves();
+
+ const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
+ unsigned PerEncoding = TLOF.getPersonalityEncoding();
+ const Function *Per = MMI->getPersonalities()[MMI->getPersonalityIndex()];
+
+ shouldEmitPersonality = hasLandingPads &&
+ PerEncoding != dwarf::DW_EH_PE_omit && Per;
+
+ unsigned LSDAEncoding = TLOF.getLSDAEncoding();
+ shouldEmitLSDA = shouldEmitPersonality &&
+ LSDAEncoding != dwarf::DW_EH_PE_omit;
+
+ if (!shouldEmitPersonality && !shouldEmitMoves)
+ return;
+
+ Asm->OutStreamer.EmitWin64EHStartProc(Asm->CurrentFnSym);
+
+ if (!shouldEmitPersonality)
+ return;
+
+ MCSymbol *GCCHandlerSym =
+ Asm->GetExternalSymbolSymbol("_GCC_specific_handler");
+ Asm->OutStreamer.EmitWin64EHHandler(GCCHandlerSym, true, true);
+
+ Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_begin",
+ Asm->getFunctionNumber()));
}
/// EndFunction - Gather and emit post-function exception information.
///
void Win64Exception::EndFunction() {
+ if (!shouldEmitPersonality && !shouldEmitMoves)
+ return;
+
+ Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_end",
+ Asm->getFunctionNumber()));
+
+ // Map all labels and get rid of any dead landing pads.
+ MMI->TidyLandingPads();
+
+ if (shouldEmitPersonality) {
+ const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
+ const Function *Per = MMI->getPersonalities()[MMI->getPersonalityIndex()];
+ const MCSymbol *Sym = TLOF.getCFIPersonalitySymbol(Per, Asm->Mang, MMI);
+
+ Asm->OutStreamer.PushSection();
+ Asm->OutStreamer.EmitWin64EHHandlerData();
+ Asm->OutStreamer.EmitValue(MCSymbolRefExpr::Create(Sym, Asm->OutContext),
+ 4);
+ EmitExceptionTable();
+ Asm->OutStreamer.PopSection();
+ }
+ Asm->OutStreamer.EmitWin64EHEndProc();
}