[Sparc] Add support for parsing fcmp with %fcc registers.

[oota-llvm.git] / lib / Target / Sparc / Disassembler / SparcDisassembler.cpp

diff --git a/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp b/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp
index 3c03994e0a94350da10836ec9d7c63882e350c14..e01196cbccbff867541c16e11ec392e56dc445e7 100644 (file)
--- a/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp
+++ b/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp
@@ -113,6 +113,9 @@ static const unsigned QFPRegDecoderTable[] = {
   SP::Q6,  SP::Q14,  ~0U,  ~0U,
   SP::Q7,  SP::Q15,  ~0U,  ~0U } ;
 
+static const unsigned FCCRegDecoderTable[] = {
+  SP::FCC0, SP::FCC1, SP::FCC2, SP::FCC3 };
+
 static DecodeStatus DecodeIntRegsRegisterClass(MCInst &Inst,
                                                unsigned RegNo,
                                                uint64_t Address,
@@ -174,6 +177,16 @@ static DecodeStatus DecodeQFPRegsRegisterClass(MCInst &Inst,
   return MCDisassembler::Success;
 }
 
+static DecodeStatus DecodeFCCRegsRegisterClass(MCInst &Inst, unsigned RegNo,
+                                               uint64_t Address,
+                                               const void *Decoder) {
+  if (RegNo > 3)
+    return MCDisassembler::Fail;
+  Inst.addOperand(MCOperand::CreateReg(FCCRegDecoderTable[RegNo]));
+  return MCDisassembler::Success;
+}
+
+
 static DecodeStatus DecodeLoadInt(MCInst &Inst, unsigned insn, uint64_t Address,
                                   const void *Decoder);
 static DecodeStatus DecodeLoadFP(MCInst &Inst, unsigned insn, uint64_t Address,
@@ -192,6 +205,8 @@ static DecodeStatus DecodeStoreQFP(MCInst &Inst, unsigned insn,
                                    uint64_t Address, const void *Decoder);
 static DecodeStatus DecodeCall(MCInst &Inst, unsigned insn,
                                uint64_t Address, const void *Decoder);
+static DecodeStatus DecodeSIMM13(MCInst &Inst, unsigned insn,
+                                 uint64_t Address, const void *Decoder);
 
 #include "SparcGenDisassemblerTables.inc"
 
@@ -357,3 +372,10 @@ static DecodeStatus DecodeCall(MCInst &MI, unsigned insn,
     MI.addOperand(MCOperand::CreateImm(tgt));
   return MCDisassembler::Success;
 }
+
+static DecodeStatus DecodeSIMM13(MCInst &MI, unsigned insn,
+                                 uint64_t Address, const void *Decoder) {
+  unsigned tgt = SignExtend32<13>(fieldFromInstruction(insn, 0, 13));
+  MI.addOperand(MCOperand::CreateImm(tgt));
+  return MCDisassembler::Success;
+}