llvm/lib/Target/Hexagon/HexagonOperands.td

//===- HexagonOperands.td - Hexagon immediate processing -*- tablegen -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illnois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// Immediate operands.

let PrintMethod = "printImmOperand" in {
  // f32Ext type is used to identify constant extended floating point immediates.
  def f32Ext : Operand<f32>;
  def s32Imm : Operand<i32>;
  def s26_6Imm : Operand<i32>;
  def s16Imm : Operand<i32>;
  def s12Imm : Operand<i32>;
  def s11Imm : Operand<i32>;
  def s11_0Imm : Operand<i32>;
  def s11_1Imm : Operand<i32>;
  def s11_2Imm : Operand<i32>;
  def s11_3Imm : Operand<i32>;
  def s10Imm : Operand<i32>;
  def s9Imm : Operand<i32>;
  def m9Imm : Operand<i32>;
  def s8Imm : Operand<i32>;
  def s8Imm64 : Operand<i64>;
  def s6Imm : Operand<i32>;
  def s4Imm : Operand<i32>;
  def s4_0Imm : Operand<i32>;
  def s4_1Imm : Operand<i32>;
  def s4_2Imm : Operand<i32>;
  def s4_3Imm : Operand<i32>;
  def u64Imm : Operand<i64>;
  def u32Imm : Operand<i32>;
  def u26_6Imm : Operand<i32>;
  def u16Imm : Operand<i32>;
  def u16_0Imm : Operand<i32>;
  def u16_1Imm : Operand<i32>;
  def u16_2Imm : Operand<i32>;
  def u11_3Imm : Operand<i32>;
  def u10Imm : Operand<i32>;
  def u9Imm : Operand<i32>;
  def u8Imm : Operand<i32>;
  def u7Imm : Operand<i32>;
  def u6Imm : Operand<i32>;
  def u6_0Imm : Operand<i32>;
  def u6_1Imm : Operand<i32>;
  def u6_2Imm : Operand<i32>;
  def u6_3Imm : Operand<i32>;
  def u5Imm : Operand<i32>;
  def u4Imm : Operand<i32>;
  def u3Imm : Operand<i32>;
  def u2Imm : Operand<i32>;
  def u1Imm : Operand<i32>;
  def n8Imm : Operand<i32>;
  def m6Imm : Operand<i32>;
}

let PrintMethod = "printNOneImmOperand" in
def nOneImm : Operand<i32>;

//
// Immediate predicates
//
def s32ImmPred  : PatLeaf<(i32 imm), [{
  // immS16 predicate - True if the immediate fits in a 16-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<32>(v);
}]>;

def s32_24ImmPred  : PatLeaf<(i32 imm), [{
  // s32_24ImmPred predicate - True if the immediate fits in a 32-bit sign
  // extended field that is a multiple of 0x1000000.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedInt<32,24>(v);
}]>;

def s32_16s8ImmPred  : PatLeaf<(i32 imm), [{
  // s32_16s8ImmPred predicate - True if the immediate fits in a 32-bit sign
  // extended field that is a multiple of 0x10000.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedInt<24,16>(v);
}]>;

def s16ImmPred  : PatLeaf<(i32 imm), [{
  // immS16 predicate - True if the immediate fits in a 16-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<16>(v);
}]>;


def s13ImmPred  : PatLeaf<(i32 imm), [{
  // immS13 predicate - True if the immediate fits in a 13-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<13>(v);
}]>;


def s12ImmPred  : PatLeaf<(i32 imm), [{
  // immS16 predicate - True if the immediate fits in a 16-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<12>(v);
}]>;

def s11_0ImmPred  : PatLeaf<(i32 imm), [{
  // immS16 predicate - True if the immediate fits in a 16-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<11>(v);
}]>;


def s11_1ImmPred  : PatLeaf<(i32 imm), [{
  // immS16 predicate - True if the immediate fits in a 16-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedInt<11,1>(v);
}]>;


def s11_2ImmPred  : PatLeaf<(i32 imm), [{
  // immS16 predicate - True if the immediate fits in a 16-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedInt<11,2>(v);
}]>;


def s11_3ImmPred  : PatLeaf<(i32 imm), [{
  // immS16 predicate - True if the immediate fits in a 16-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedInt<11,3>(v);
}]>;


def s10ImmPred  : PatLeaf<(i32 imm), [{
  // s10ImmPred predicate - True if the immediate fits in a 10-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<10>(v);
}]>;


def s9ImmPred  : PatLeaf<(i32 imm), [{
  // s9ImmPred predicate - True if the immediate fits in a 9-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<9>(v);
}]>;


def s8ImmPred  : PatLeaf<(i32 imm), [{
  // s8ImmPred predicate - True if the immediate fits in a 8-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<8>(v);
}]>;


def s8Imm64Pred  : PatLeaf<(i64 imm), [{
  // s8ImmPred predicate - True if the immediate fits in a 8-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<8>(v);
}]>;


def s6ImmPred  : PatLeaf<(i32 imm), [{
  // s6ImmPred predicate - True if the immediate fits in a 6-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<6>(v);
}]>;


def s4_0ImmPred  : PatLeaf<(i32 imm), [{
  // s4_0ImmPred predicate - True if the immediate fits in a 4-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<4>(v);
}]>;


def s4_1ImmPred  : PatLeaf<(i32 imm), [{
  // s4_1ImmPred predicate - True if the immediate fits in a 4-bit sign extended
  // field of 2.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedInt<4,1>(v);
}]>;


def s4_2ImmPred  : PatLeaf<(i32 imm), [{
  // s4_2ImmPred predicate - True if the immediate fits in a 4-bit sign extended
  // field that is a multiple of 4.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedInt<4,2>(v);
}]>;


def s4_3ImmPred  : PatLeaf<(i32 imm), [{
  // s4_3ImmPred predicate - True if the immediate fits in a 4-bit sign extended
  // field that is a multiple of 8.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedInt<4,3>(v);
}]>;


def u64ImmPred  : PatLeaf<(i64 imm), [{
  // immS16 predicate - True if the immediate fits in a 16-bit sign extended
  // field.
  // Adding "N ||" to suppress gcc unused warning.
  return (N || true);
}]>;

def u32ImmPred  : PatLeaf<(i32 imm), [{
  // immS16 predicate - True if the immediate fits in a 16-bit sign extended
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<32>(v);
}]>;

def u16ImmPred  : PatLeaf<(i32 imm), [{
  // u16ImmPred predicate - True if the immediate fits in a 16-bit unsigned
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<16>(v);
}]>;

def u16_s8ImmPred  : PatLeaf<(i32 imm), [{
  // u16_s8ImmPred predicate - True if the immediate fits in a 16-bit sign
  // extended s8 field.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedUInt<16,8>(v);
}]>;

def u9ImmPred  : PatLeaf<(i32 imm), [{
  // u9ImmPred predicate - True if the immediate fits in a 9-bit unsigned
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<9>(v);
}]>;


def u8ImmPred  : PatLeaf<(i32 imm), [{
  // u8ImmPred predicate - True if the immediate fits in a 8-bit unsigned
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<8>(v);
}]>;

def u7ImmPred  : PatLeaf<(i32 imm), [{
  // u7ImmPred predicate - True if the immediate fits in a 8-bit unsigned
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<7>(v);
}]>;


def u6ImmPred  : PatLeaf<(i32 imm), [{
  // u6ImmPred predicate - True if the immediate fits in a 6-bit unsigned
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<6>(v);
}]>;

def u6_0ImmPred  : PatLeaf<(i32 imm), [{
  // u6_0ImmPred predicate - True if the immediate fits in a 6-bit unsigned
  // field. Same as u6ImmPred.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<6>(v);
}]>;

def u6_1ImmPred  : PatLeaf<(i32 imm), [{
  // u6_1ImmPred predicate - True if the immediate fits in a 6-bit unsigned
  // field that is 1 bit alinged - multiple of 2.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedUInt<6,1>(v);
}]>;

def u6_2ImmPred  : PatLeaf<(i32 imm), [{
  // u6_2ImmPred predicate - True if the immediate fits in a 6-bit unsigned
  // field that is 2 bits alinged - multiple of 4.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedUInt<6,2>(v);
}]>;

def u6_3ImmPred  : PatLeaf<(i32 imm), [{
  // u6_3ImmPred predicate - True if the immediate fits in a 6-bit unsigned
  // field that is 3 bits alinged - multiple of 8.
  int64_t v = (int64_t)N->getSExtValue();
  return isShiftedUInt<6,3>(v);
}]>;

def u5ImmPred  : PatLeaf<(i32 imm), [{
  // u5ImmPred predicate - True if the immediate fits in a 5-bit unsigned
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<5>(v);
}]>;


def u3ImmPred  : PatLeaf<(i32 imm), [{
  // u3ImmPred predicate - True if the immediate fits in a 3-bit unsigned
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<3>(v);
}]>;


def u2ImmPred  : PatLeaf<(i32 imm), [{
  // u2ImmPred predicate - True if the immediate fits in a 2-bit unsigned
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<2>(v);
}]>;


def u1ImmPred  : PatLeaf<(i1 imm), [{
  // u1ImmPred predicate - True if the immediate fits in a 1-bit unsigned
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return isUInt<1>(v);
}]>;

def m6ImmPred  : PatLeaf<(i32 imm), [{
  // m6ImmPred predicate - True if the immediate is negative and fits in
  // a 6-bit negative number.
  int64_t v = (int64_t)N->getSExtValue();
  return isInt<6>(v);
}]>;

//InN means negative integers in [-(2^N - 1), 0]
def n8ImmPred  : PatLeaf<(i32 imm), [{
  // n8ImmPred predicate - True if the immediate fits in a 8-bit signed
  // field.
  int64_t v = (int64_t)N->getSExtValue();
  return (-255 <= v && v <= 0);
}]>;

def nOneImmPred  : PatLeaf<(i32 imm), [{
  // nOneImmPred predicate - True if the immediate is -1.
  int64_t v = (int64_t)N->getSExtValue();
  return (-1 == v);
}]>;