[Hexagon] Adding decoders for signed operands and ensuring all signed operand types disassemble correctly.

llvm-svn: 239477

1 files changed, 118 insertions, 0 deletions

diff --git a/llvm/lib/Target/Hexagon/Disassembler/HexagonDisassembler.cpp b/llvm/lib/Target/Hexagon/Disassembler/HexagonDisassembler.cpp
index 14f9d77..9cc1e94 100644
--- a/llvm/lib/Target/Hexagon/Disassembler/HexagonDisassembler.cpp
+++ b/llvm/lib/Target/Hexagon/Disassembler/HexagonDisassembler.cpp
@@ -69,6 +69,33 @@ static unsigned GetSubinstOpcode(unsigned IClass, unsigned inst, unsigned &op,
                                  raw_ostream &os);
 static void AddSubinstOperands(MCInst *MI, unsigned opcode, unsigned inst);
 
+static DecodeStatus s16ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                  const void *Decoder);
+static DecodeStatus s12ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                  const void *Decoder);
+static DecodeStatus s11_0ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                    const void *Decoder);
+static DecodeStatus s11_1ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                    const void *Decoder);
+static DecodeStatus s11_2ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                    const void *Decoder);
+static DecodeStatus s11_3ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                    const void *Decoder);
+static DecodeStatus s10ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                  const void *Decoder);
+static DecodeStatus s8ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                 const void *Decoder);
+static DecodeStatus s6_0ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                   const void *Decoder);
+static DecodeStatus s4_0ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                   const void *Decoder);
+static DecodeStatus s4_1ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                   const void *Decoder);
+static DecodeStatus s4_2ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                   const void *Decoder);
+static DecodeStatus s4_3ImmDecoder(MCInst &MI, unsigned tmp, uint64_t Address,
+                                   const void *Decoder);
+
 static const uint16_t IntRegDecoderTable[] = {
     Hexagon::R0,  Hexagon::R1,  Hexagon::R2,  Hexagon::R3,  Hexagon::R4,
     Hexagon::R5,  Hexagon::R6,  Hexagon::R7,  Hexagon::R8,  Hexagon::R9,
@@ -356,6 +383,97 @@ DecodeStatus HexagonDisassembler::getSingleInstruction(
   return Result;
 }
 
+static DecodeStatus s16ImmDecoder(MCInst &MI, unsigned tmp,
+                                  uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<16>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s12ImmDecoder(MCInst &MI, unsigned tmp,
+                                  uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<12>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s11_0ImmDecoder(MCInst &MI, unsigned tmp,
+                                    uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<11>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s11_1ImmDecoder(MCInst &MI, unsigned tmp,
+                                    uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<12>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s11_2ImmDecoder(MCInst &MI, unsigned tmp,
+                                    uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<13>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s11_3ImmDecoder(MCInst &MI, unsigned tmp,
+                                    uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<14>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s10ImmDecoder(MCInst &MI, unsigned tmp,
+                                  uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<10>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s8ImmDecoder(MCInst &MI, unsigned tmp, uint64_t /*Address*/,
+                                 const void *Decoder) {
+  uint64_t imm = SignExtend64<8>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s6_0ImmDecoder(MCInst &MI, unsigned tmp,
+                                   uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<6>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s4_0ImmDecoder(MCInst &MI, unsigned tmp,
+                                   uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<4>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s4_1ImmDecoder(MCInst &MI, unsigned tmp,
+                                   uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<5>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s4_2ImmDecoder(MCInst &MI, unsigned tmp,
+                                   uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<6>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
+static DecodeStatus s4_3ImmDecoder(MCInst &MI, unsigned tmp,
+                                   uint64_t /*Address*/, const void *Decoder) {
+  uint64_t imm = SignExtend64<7>(tmp);
+  MI.addOperand(MCOperand::createImm(imm));
+  return MCDisassembler::Success;
+}
+
 // These values are from HexagonGenMCCodeEmitter.inc and HexagonIsetDx.td
 enum subInstBinaryValues {
   V4_SA1_addi_BITS = 0x0000,