[AArch64] Add v8.1a atomic instructions

[oota-llvm.git] / lib / Target / AArch64 / InstPrinter / AArch64InstPrinter.cpp

diff --git a/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.cpp b/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.cpp
index bf1aeca78cc51587987404fd110379c2e96295bb..d7ea6f86c3ffb2e7ae8b2dcfa74095c307ab75bc 100644 (file)
--- a/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.cpp
+++ b/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.cpp
@@ -1113,7 +1113,7 @@ void AArch64InstPrinter::printPrefetchOp(const MCInst *MI, unsigned OpNum,
                                          raw_ostream &O) {
   unsigned prfop = MI->getOperand(OpNum).getImm();
   bool Valid;
-  StringRef Name = 
+  StringRef Name =
       AArch64PRFM::PRFMMapper().toString(prfop, STI.getFeatureBits(), Valid);
   if (Valid)
     O << Name;
@@ -1177,6 +1177,23 @@ static unsigned getNextVectorRegister(unsigned Reg, unsigned Stride = 1) {
   return Reg;
 }
 
+template<unsigned size>
+void AArch64InstPrinter::printGPRSeqPairsClassOperand(const MCInst *MI,
+                                                   unsigned OpNum,
+                                                   const MCSubtargetInfo &STI,
+                                                   raw_ostream &O) {
+  static_assert(size == 64 || size == 32,
+                "Template parameter must be either 32 or 64");
+  unsigned Reg = MI->getOperand(OpNum).getReg();
+
+  unsigned Sube = (size == 32) ? AArch64::sube32 : AArch64::sube64;
+  unsigned Subo = (size == 32) ? AArch64::subo32 : AArch64::subo64;
+
+  unsigned Even = MRI.getSubReg(Reg,  Sube);
+  unsigned Odd = MRI.getSubReg(Reg,  Subo);
+  O << getRegisterName(Even) << ", " << getRegisterName(Odd);
+}
+
 void AArch64InstPrinter::printVectorList(const MCInst *MI, unsigned OpNum,
                                          const MCSubtargetInfo &STI,
                                          raw_ostream &O,
@@ -1298,10 +1315,10 @@ void AArch64InstPrinter::printBarrierOption(const MCInst *MI, unsigned OpNo,
   bool Valid;
   StringRef Name;
   if (Opcode == AArch64::ISB)
-    Name = AArch64ISB::ISBMapper().toString(Val, STI.getFeatureBits(), 
+    Name = AArch64ISB::ISBMapper().toString(Val, STI.getFeatureBits(),
                                             Valid);
   else
-    Name = AArch64DB::DBarrierMapper().toString(Val, STI.getFeatureBits(), 
+    Name = AArch64DB::DBarrierMapper().toString(Val, STI.getFeatureBits(),
                                                 Valid);
   if (Valid)
     O << Name;
@@ -1337,7 +1354,7 @@ void AArch64InstPrinter::printSystemPStateField(const MCInst *MI, unsigned OpNo,
   unsigned Val = MI->getOperand(OpNo).getImm();
 
   bool Valid;
-  StringRef Name = 
+  StringRef Name =
       AArch64PState::PStateMapper().toString(Val, STI.getFeatureBits(), Valid);
   if (Valid)
     O << StringRef(Name.str()).upper();