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factor out a simple helper function to create a label for PC-relative

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instructions (PICADD, PICLDR, et.al.)

llvm-svn: 114243
This commit is contained in:
Jim Grosbach 2010-09-18 00:05:05 +00:00
parent a19f7799fb
commit c909422ee9
1 changed files with 17 additions and 19 deletions
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36
lib/Target/ARM/ARMAsmPrinter.cpp
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@ -1383,6 +1383,14 @@ void ARMAsmPrinter::EmitEndOfAsmFile(Module &M) {
//===----------------------------------------------------------------------===//
static MCSymbol *getPICLabel(const char *Prefix, unsigned FunctionNumber,
unsigned LabelId, MCContext &Ctx) {
MCSymbol *Label = Ctx.GetOrCreateSymbol(Twine(Prefix)
+ "PC" + Twine(FunctionNumber) + "_" + Twine(LabelId));
return Label;
}
void ARMAsmPrinter::printInstructionThroughMCStreamer(const MachineInstr *MI) {
ARMMCInstLower MCInstLowering(OutContext, *Mang, *this);
switch (MI->getOpcode()) {
@ -1396,12 +1404,9 @@ void ARMAsmPrinter::printInstructionThroughMCStreamer(const MachineInstr *MI) {
// This adds the address of LPC0 to r0.
// Emit the label.
// FIXME: MOVE TO SHARED PLACE.
unsigned Id = (unsigned)MI->getOperand(2).getImm();
const char *Prefix = MAI->getPrivateGlobalPrefix();
MCSymbol *Label =OutContext.GetOrCreateSymbol(Twine(Prefix)
+ "PC" + Twine(getFunctionNumber()) + "_" + Twine(Id));
OutStreamer.EmitLabel(Label);
OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(),
getFunctionNumber(), MI->getOperand(2).getImm(),
OutContext));
// Form and emit the add.
MCInst AddInst;
@ -1422,13 +1427,9 @@ void ARMAsmPrinter::printInstructionThroughMCStreamer(const MachineInstr *MI) {
// This adds the address of LPC0 to r0.
// Emit the label.
// FIXME: MOVE TO SHARED PLACE.
unsigned Id = (unsigned)MI->getOperand(2).getImm();
const char *Prefix = MAI->getPrivateGlobalPrefix();
MCSymbol *Label =OutContext.GetOrCreateSymbol(Twine(Prefix)
+ "PC" + Twine(getFunctionNumber()) + "_" + Twine(Id));
OutStreamer.EmitLabel(Label);
OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(),
getFunctionNumber(), MI->getOperand(2).getImm(),
OutContext));
// Form and emit the add.
MCInst AddInst;
@ -1459,12 +1460,9 @@ void ARMAsmPrinter::printInstructionThroughMCStreamer(const MachineInstr *MI) {
// a PC-relative address at the ldr instruction.
// Emit the label.
// FIXME: MOVE TO SHARED PLACE.
unsigned Id = (unsigned)MI->getOperand(2).getImm();
const char *Prefix = MAI->getPrivateGlobalPrefix();
MCSymbol *Label =OutContext.GetOrCreateSymbol(Twine(Prefix)
+ "PC" + Twine(getFunctionNumber()) + "_" + Twine(Id));
OutStreamer.EmitLabel(Label);
OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(),
getFunctionNumber(), MI->getOperand(2).getImm(),
OutContext));
// Form and emit the load
unsigned Opcode;