[SPARCv9] Add support for the rdpr/wrpr instructions.

llvm-svn: 249262

1 files changed, 15 insertions, 0 deletions

diff --git a/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp b/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp
index e518fc7..51751ec 100644
--- a/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp
+++ b/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp
@@ -117,6 +117,12 @@ static const unsigned ASRRegDecoderTable[] = {
   SP::ASR24, SP::ASR25, SP::ASR26, SP::ASR27,
   SP::ASR28, SP::ASR29, SP::ASR30, SP::ASR31};
 
+static const unsigned PRRegDecoderTable[] = {
+  SP::TPC, SP::TNPC, SP::TSTATE, SP::TT, SP::TICK, SP::TBA, SP::PSTATE,
+  SP::TL, SP::PIL, SP::CWP, SP::CANSAVE, SP::CANRESTORE, SP::CLEANWIN,
+  SP::OTHERWIN, SP::WSTATE
+};
+
 static const uint16_t IntPairDecoderTable[] = {
   SP::G0_G1, SP::G2_G3, SP::G4_G5, SP::G6_G7,
   SP::O0_O1, SP::O2_O3, SP::O4_O5, SP::O6_O7,
@@ -203,6 +209,15 @@ static DecodeStatus DecodeASRRegsRegisterClass(MCInst &Inst, unsigned RegNo,
   return MCDisassembler::Success;
 }
 
+static DecodeStatus DecodePRRegsRegisterClass(MCInst &Inst, unsigned RegNo,
+                                               uint64_t Address,
+                                               const void *Decoder) {
+  if (RegNo >= array_lengthof(PRRegDecoderTable))
+    return MCDisassembler::Fail;
+  Inst.addOperand(MCOperand::createReg(PRRegDecoderTable[RegNo]));
+  return MCDisassembler::Success;
+}
+
 static DecodeStatus DecodeIntPairRegisterClass(MCInst &Inst, unsigned RegNo,
                                    uint64_t Address, const void *Decoder) {
   DecodeStatus S = MCDisassembler::Success;