llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.

[oota-llvm.git] / lib / Target / MSP430 / MSP430InstrInfo.cpp

diff --git a/lib/Target/MSP430/MSP430InstrInfo.cpp b/lib/Target/MSP430/MSP430InstrInfo.cpp
index 199a323bf2be04f99e0860707236d0874bf3eec1..37fbb6d9999bc31e95a862ff235c055830da3ddf 100644 (file)
--- a/lib/Target/MSP430/MSP430InstrInfo.cpp
+++ b/lib/Target/MSP430/MSP430InstrInfo.cpp
@@ -21,6 +21,7 @@
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/PseudoSourceValue.h"
+#include "llvm/Support/ErrorHandling.h"
 
 using namespace llvm;
 
@@ -38,13 +39,13 @@ void MSP430InstrInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
   if (RC == &MSP430::GR16RegClass)
     BuildMI(MBB, MI, DL, get(MSP430::MOV16mr))
       .addFrameIndex(FrameIdx).addImm(0)
-      .addReg(SrcReg, false, false, isKill);
+      .addReg(SrcReg, getKillRegState(isKill));
   else if (RC == &MSP430::GR8RegClass)
     BuildMI(MBB, MI, DL, get(MSP430::MOV8mr))
       .addFrameIndex(FrameIdx).addImm(0)
-      .addReg(SrcReg, false, false, isKill);
+      .addReg(SrcReg, getKillRegState(isKill));
   else
-    assert(0 && "Cannot store this register to stack slot!");
+    llvm_unreachable("Cannot store this register to stack slot!");
 }
 
 void MSP430InstrInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
@@ -61,7 +62,7 @@ void MSP430InstrInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
     BuildMI(MBB, MI, DL, get(MSP430::MOV8rm))
       .addReg(DestReg).addFrameIndex(FrameIdx).addImm(0);
   else
-    assert(0 && "Cannot store this register to stack slot!");
+    llvm_unreachable("Cannot store this register to stack slot!");
 }
 
 bool MSP430InstrInfo::copyRegToReg(MachineBasicBlock &MBB,
@@ -129,7 +130,7 @@ MSP430InstrInfo::spillCalleeSavedRegisters(MachineBasicBlock &MBB,
     // Add the callee-saved register as live-in. It's killed at the spill.
     MBB.addLiveIn(Reg);
     BuildMI(MBB, MI, DL, get(MSP430::PUSH16r))
-      .addReg(Reg, /*isDef=*/false, /*isImp=*/false, /*isKill=*/true);
+      .addReg(Reg, RegState::Kill);
   }
   return true;
 }
@@ -149,3 +150,29 @@ MSP430InstrInfo::restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
 
   return true;
 }
+
+unsigned
+MSP430InstrInfo::InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
+                              MachineBasicBlock *FBB,
+                            const SmallVectorImpl<MachineOperand> &Cond) const {
+  // FIXME this should probably have a DebugLoc operand
+  DebugLoc dl = DebugLoc::getUnknownLoc();
+
+  // Shouldn't be a fall through.
+  assert(TBB && "InsertBranch must not be told to insert a fallthrough");
+  assert((Cond.size() == 1 || Cond.size() == 0) &&
+         "MSP430 branch conditions have one component!");
+
+  if (Cond.empty()) {
+    // Unconditional branch?
+    assert(!FBB && "Unconditional branch with multiple successors!");
+    BuildMI(&MBB, dl, get(MSP430::JMP)).addMBB(TBB);
+    return 1;
+  }
+
+  // Conditional branch.
+  unsigned Count = 0;
+  llvm_unreachable("Implement conditional branches!");
+
+  return Count;
+}