MC: Overhaul handling of .lcomm

[oota-llvm.git] / lib / Target / ARM / ARMInstrInfo.cpp

diff --git a/lib/Target/ARM/ARMInstrInfo.cpp b/lib/Target/ARM/ARMInstrInfo.cpp
index 7b40fad0e31d9252e265b17604e57e484f6b2c73..31b0c41f08f52e37c2aed8dd8dd15ec3791f8780 100644 (file)
--- a/lib/Target/ARM/ARMInstrInfo.cpp
+++ b/lib/Target/ARM/ARMInstrInfo.cpp
@@ -1,4 +1,4 @@
-//===- ARMInstrInfo.cpp - ARM Instruction Information -----------*- C++ -*-===//
+//===-- ARMInstrInfo.cpp - ARM Instruction Information --------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -13,32 +13,53 @@
 
 #include "ARMInstrInfo.h"
 #include "ARM.h"
-#include "ARMAddressingModes.h"
-#include "ARMGenInstrInfo.inc"
 #include "ARMMachineFunctionInfo.h"
+#include "MCTargetDesc/ARMAddressingModes.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/CodeGen/LiveVariables.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineJumpTableInfo.h"
 #include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCInst.h"
 using namespace llvm;
 
 ARMInstrInfo::ARMInstrInfo(const ARMSubtarget &STI)
   : ARMBaseInstrInfo(STI), RI(*this, STI) {
 }
 
+/// getNoopForMachoTarget - Return the noop instruction to use for a noop.
+void ARMInstrInfo::getNoopForMachoTarget(MCInst &NopInst) const {
+  if (hasNOP()) {
+    NopInst.setOpcode(ARM::HINT);
+    NopInst.addOperand(MCOperand::CreateImm(0));
+    NopInst.addOperand(MCOperand::CreateImm(ARMCC::AL));
+    NopInst.addOperand(MCOperand::CreateReg(0));
+  } else {
+    NopInst.setOpcode(ARM::MOVr);
+    NopInst.addOperand(MCOperand::CreateReg(ARM::R0));
+    NopInst.addOperand(MCOperand::CreateReg(ARM::R0));
+    NopInst.addOperand(MCOperand::CreateImm(ARMCC::AL));
+    NopInst.addOperand(MCOperand::CreateReg(0));
+    NopInst.addOperand(MCOperand::CreateReg(0));
+  }
+}
+
 unsigned ARMInstrInfo::getUnindexedOpcode(unsigned Opc) const {
   switch (Opc) {
   default: break;
-  case ARM::LDR_PRE:
-  case ARM::LDR_POST:
+  case ARM::LDR_PRE_IMM:
+  case ARM::LDR_PRE_REG:
+  case ARM::LDR_POST_IMM:
+  case ARM::LDR_POST_REG:
     return ARM::LDRi12;
   case ARM::LDRH_PRE:
   case ARM::LDRH_POST:
     return ARM::LDRH;
-  case ARM::LDRB_PRE:
-  case ARM::LDRB_POST:
+  case ARM::LDRB_PRE_IMM:
+  case ARM::LDRB_PRE_REG:
+  case ARM::LDRB_POST_IMM:
+  case ARM::LDRB_POST_REG:
     return ARM::LDRBi12;
   case ARM::LDRSH_PRE:
   case ARM::LDRSH_POST:
@@ -46,41 +67,20 @@ unsigned ARMInstrInfo::getUnindexedOpcode(unsigned Opc) const {
   case ARM::LDRSB_PRE:
   case ARM::LDRSB_POST:
     return ARM::LDRSB;
-  case ARM::STR_PRE:
-  case ARM::STR_POST:
+  case ARM::STR_PRE_IMM:
+  case ARM::STR_PRE_REG:
+  case ARM::STR_POST_IMM:
+  case ARM::STR_POST_REG:
     return ARM::STRi12;
   case ARM::STRH_PRE:
   case ARM::STRH_POST:
     return ARM::STRH;
-  case ARM::STRB_PRE:
-  case ARM::STRB_POST:
+  case ARM::STRB_PRE_IMM:
+  case ARM::STRB_PRE_REG:
+  case ARM::STRB_POST_IMM:
+  case ARM::STRB_POST_REG:
     return ARM::STRBi12;
   }
 
   return 0;
 }
-
-void ARMInstrInfo::
-reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
-              unsigned DestReg, unsigned SubIdx, const MachineInstr *Orig,
-              const TargetRegisterInfo &TRI) const {
-  DebugLoc dl = Orig->getDebugLoc();
-  unsigned Opcode = Orig->getOpcode();
-  switch (Opcode) {
-  default:
-    break;
-  case ARM::MOVi2pieces: {
-    RI.emitLoadConstPool(MBB, I, dl,
-                         DestReg, SubIdx,
-                         Orig->getOperand(1).getImm(),
-                         (ARMCC::CondCodes)Orig->getOperand(2).getImm(),
-                         Orig->getOperand(3).getReg());
-    MachineInstr *NewMI = prior(I);
-    NewMI->getOperand(0).setSubReg(SubIdx);
-    return;
-  }
-  }
-
-  return ARMBaseInstrInfo::reMaterialize(MBB, I, DestReg, SubIdx, Orig, TRI);
-}
-