[llvm-commits] [llvm] r84553 - in /llvm/trunk/lib/Target/ARM/AsmPrinter: ARMAsmPrinter.cpp ARMInstPrinter.cpp ARMInstPrinter.h
Chris Lattner
sabre at nondot.org
Mon Oct 19 15:23:05 PDT 2009
Author: lattner
Date: Mon Oct 19 17:23:04 2009
New Revision: 84553
URL: http://llvm.org/viewvc/llvm-project?rev=84553&view=rev
Log:
add MCInstLower support for lowering ARM::PICADD, a pseudo op for pic stuffola.
Modified:
llvm/trunk/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
llvm/trunk/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
llvm/trunk/lib/Target/ARM/AsmPrinter/ARMInstPrinter.h
Modified: llvm/trunk/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp?rev=84553&r1=84552&r2=84553&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp (original)
+++ llvm/trunk/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp Mon Oct 19 17:23:04 2009
@@ -1313,6 +1313,7 @@
void ARMAsmPrinter::printInstructionThroughMCStreamer(const MachineInstr *MI) {
ARMMCInstLower MCInstLowering(OutContext, *Mang, getFunctionNumber(), *MAI);
switch (MI->getOpcode()) {
+ default: break;
case TargetInstrInfo::DBG_LABEL:
case TargetInstrInfo::EH_LABEL:
case TargetInstrInfo::GC_LABEL:
@@ -1327,7 +1328,29 @@
case TargetInstrInfo::IMPLICIT_DEF:
printImplicitDef(MI);
return;
- default: break;
+ case ARM::PICADD: { // FIXME: Remove asm string from td file.
+ // This is a pseudo op for a label + instruction sequence, which looks like:
+ // LPC0:
+ // add r0, pc, r0
+ // This adds the address of LPC0 to r0.
+
+ // Emit the label.
+ // FIXME: MOVE TO SHARED PLACE.
+ SmallString<60> Name;
+ int Id = (int)MI->getOperand(2).getImm();
+ raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "PC" << Id;
+ OutStreamer.EmitLabel(OutContext.GetOrCreateSymbol(Name.str()));
+
+
+ // Form and emit tha dd.
+ MCInst AddInst;
+ AddInst.setOpcode(ARM::ADDrr);
+ AddInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg()));
+ AddInst.addOperand(MCOperand::CreateReg(ARM::PC));
+ AddInst.addOperand(MCOperand::CreateReg(MI->getOperand(1).getReg()));
+ printMCInst(&AddInst);
+ return;
+ }
}
MCInst TmpInst;
Modified: llvm/trunk/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp?rev=84553&r1=84552&r2=84553&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp (original)
+++ llvm/trunk/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp Mon Oct 19 17:23:04 2009
@@ -157,3 +157,10 @@
}
O << "}";
}
+
+
+
+void ARMInstPrinter::printPCLabel(const MCInst *MI, unsigned OpNum) {
+ // FIXME: remove this.
+ abort();
+}
Modified: llvm/trunk/lib/Target/ARM/AsmPrinter/ARMInstPrinter.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/AsmPrinter/ARMInstPrinter.h?rev=84553&r1=84552&r2=84553&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/AsmPrinter/ARMInstPrinter.h (original)
+++ llvm/trunk/lib/Target/ARM/AsmPrinter/ARMInstPrinter.h Mon Oct 19 17:23:04 2009
@@ -71,7 +71,6 @@
void printPredicateOperand(const MCInst *MI, unsigned OpNum) {}
void printSBitModifierOperand(const MCInst *MI, unsigned OpNum) {}
- void printPCLabel(const MCInst *MI, unsigned OpNum) {}
void printRegisterList(const MCInst *MI, unsigned OpNum);
void printCPInstOperand(const MCInst *MI, unsigned OpNum,
const char *Modifier) {}
@@ -79,9 +78,9 @@
void printJT2BlockOperand(const MCInst *MI, unsigned OpNum) {}
void printTBAddrMode(const MCInst *MI, unsigned OpNum) {}
void printNoHashImmediate(const MCInst *MI, unsigned OpNum) {}
-
-
- // FIXME:
+
+ void printPCLabel(const MCInst *MI, unsigned OpNum);
+ // FIXME: Implement.
void PrintSpecial(const MCInst *MI, const char *Kind) {}
};
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