AsmPrinter::AsmPrinter(TargetMachine &tm, MCStreamer &Streamer)
- : MachineFunctionPass(&ID),
+ : MachineFunctionPass(ID),
TM(tm), MAI(tm.getMCAsmInfo()),
OutContext(Streamer.getContext()),
OutStreamer(Streamer),
if (!M.getModuleInlineAsm().empty()) {
OutStreamer.AddComment("Start of file scope inline assembly");
OutStreamer.AddBlankLine();
- EmitInlineAsm(M.getModuleInlineAsm(), 0/*no loc cookie*/);
+ EmitInlineAsm(M.getModuleInlineAsm()+"\n", 0/*no loc cookie*/);
OutStreamer.AddComment("End of file scope inline assembly");
OutStreamer.AddBlankLine();
}
}
// Check for spill-induced copies
- unsigned SrcReg, DstReg, SrcSubIdx, DstSubIdx;
- if (TM.getInstrInfo()->isMoveInstr(MI, SrcReg, DstReg,
- SrcSubIdx, DstSubIdx)) {
- if (MI.getAsmPrinterFlag(MachineInstr::ReloadReuse))
- CommentOS << " Reload Reuse\n";
- }
+ if (MI.getAsmPrinterFlag(MachineInstr::ReloadReuse))
+ CommentOS << " Reload Reuse\n";
}
/// EmitImplicitDef - This method emits the specified machine instruction
// Print out code for the function.
bool HasAnyRealCode = false;
+ const MachineInstr *LastMI = 0;
for (MachineFunction::const_iterator I = MF->begin(), E = MF->end();
I != E; ++I) {
// Print a label for the basic block.
EmitBasicBlockStart(I);
for (MachineBasicBlock::const_iterator II = I->begin(), IE = I->end();
II != IE; ++II) {
+ LastMI = II;
+
// Print the assembly for the instruction.
if (!II->isLabel() && !II->isImplicitDef() && !II->isKill() &&
!II->isDebugValue()) {
EmitComments(*II, OutStreamer.GetCommentOS());
switch (II->getOpcode()) {
- case TargetOpcode::DBG_LABEL:
+ case TargetOpcode::PROLOG_LABEL:
case TargetOpcode::EH_LABEL:
case TargetOpcode::GC_LABEL:
OutStreamer.EmitLabel(II->getOperand(0).getMCSymbol());
}
}
}
-
+
+ // If the last instruction was a prolog label, then we have a situation where
+ // we emitted a prolog but no function body. This results in the ending prolog
+ // label equaling the end of function label and an invalid "row" in the
+ // FDE. We need to emit a noop in this situation so that the FDE's rows are
+ // valid.
+ bool RequiresNoop = LastMI && LastMI->isPrologLabel();
+
// If the function is empty and the object file uses .subsections_via_symbols,
// then we need to emit *something* to the function body to prevent the
// labels from collapsing together. Just emit a noop.
- if (MAI->hasSubsectionsViaSymbols() && !HasAnyRealCode) {
+ if ((MAI->hasSubsectionsViaSymbols() && !HasAnyRealCode) || RequiresNoop) {
MCInst Noop;
TM.getInstrInfo()->getNoopForMachoTarget(Noop);
if (Noop.getOpcode()) {
ConstantFoldConstantExpression(CE, AP.TM.getTargetData()))
if (C != CE)
return LowerConstant(C, AP);
-#ifndef NDEBUG
- CE->dump();
-#endif
- llvm_unreachable("FIXME: Don't support this constant expr");
+
+ // Otherwise report the problem to the user.
+ {
+ std::string S;
+ raw_string_ostream OS(S);
+ OS << "Unsupported expression in static initializer: ";
+ WriteAsOperand(OS, CE, /*PrintType=*/false,
+ !AP.MF ? 0 : AP.MF->getFunction()->getParent());
+ report_fatal_error(OS.str());
+ }
+ return MCConstantExpr::Create(0, Ctx);
case Instruction::GetElementPtr: {
const TargetData &TD = *AP.TM.getTargetData();
// Generate a symbolic expression for the byte address