reduced self-contained source

nir_opt_idiv_const.c.i (text/plain), 1.18 KB, created by Kostadin Shishmanov on 2023-11-04 17:08:20 UTC

nir_opt_idiv_const_instr_alu_1, nir_opt_idiv_const_instr_alu_3_1_0_1_1_1;
util_is_power_of_two_or_zero64(long long v) { return (v & v - 1) == 0; }
typedef enum { nir_op_imod } nir_ssa_def;
typedef struct {
  int parent_if;
  int reg;
  union {
    nir_ssa_def ssa
  };
  _Bool is_ssa
} nir_src;
typedef struct {
  nir_src src;
  char swizzle[]
} nir_alu_src;
typedef struct {
  int dest;
  nir_alu_src src[]
} nir_alu_instr;
nir_swizzle(nir_ssa_def src, unsigned *swiz, unsigned num_components) {
  nir_alu_src alu_src;
  nir_src __trans_tmp_1;
  {
    nir_src src = {};
    __trans_tmp_1 = src;
  }
  alu_src.src = __trans_tmp_1;
  _Bool is_identity_swizzle = 1;
  for (unsigned i = 0; i < num_components; i++)
    if (swiz[i])
      is_identity_swizzle = 0;
  if (src && is_identity_swizzle)
    nir_src_bit_size(alu_src);
}
nir_opt_idiv_const_instr() {
  nir_alu_instr *alu = nir_instr_as_alu();
  for (unsigned comp;; comp++) {
    nir_swizzle(alu->src[0].src.ssa, alu->src[0].swizzle[comp], 1);
    long long d;
    d &= nir_opt_idiv_const_instr_alu_3_1_0_1_1_1;
    switch (nir_opt_idiv_const_instr_alu_1)
    case nir_op_imod:
      if (util_is_power_of_two_or_zero64(-d))
        nir_imm_intN_t();
  }
}