Ejemplo n.º 1
0
void
orc_sse_set_mxcsr (OrcCompiler *compiler)
{
  orc_x86_emit_cpuinsn_load_memoffset (compiler, ORC_X86_stmxcsr, 4, 0,
      (int)ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_A4]),
      compiler->exec_reg, 0);

  orc_x86_emit_mov_memoffset_reg (compiler, 4,
      (int)ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_A4]),
      compiler->exec_reg, compiler->gp_tmpreg);

  orc_x86_emit_mov_reg_memoffset (compiler, 4, compiler->gp_tmpreg,
      (int)ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_C1]),
      compiler->exec_reg);

  orc_x86_emit_cpuinsn_imm_reg (compiler, ORC_X86_or_imm32_rm, 4,
      0x8040, compiler->gp_tmpreg);

  orc_x86_emit_mov_reg_memoffset (compiler, 4, compiler->gp_tmpreg,
      (int)ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_A4]),
      compiler->exec_reg);

  orc_x86_emit_cpuinsn_load_memoffset (compiler, ORC_X86_ldmxcsr, 4, 0,
      (int)ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_A4]),
      compiler->exec_reg, 0);
}
Ejemplo n.º 2
0
void
arm_add_strides (OrcCompiler *compiler)
{
  int i;

  for(i=0;i<ORC_N_COMPILER_VARIABLES;i++){
    if (compiler->vars[i].name == NULL) continue;
    switch (compiler->vars[i].vartype) {
      case ORC_VAR_TYPE_CONST:
        break;
      case ORC_VAR_TYPE_PARAM:
        break;
      case ORC_VAR_TYPE_SRC:
      case ORC_VAR_TYPE_DEST:
        orc_arm_emit_load_reg (compiler, ORC_ARM_A3, compiler->exec_reg,
            (int)ORC_STRUCT_OFFSET(OrcExecutor, arrays[i]));
        orc_arm_emit_load_reg (compiler, ORC_ARM_A2, compiler->exec_reg,
            (int)ORC_STRUCT_OFFSET(OrcExecutor, params[i]));
        orc_arm_emit_add (compiler, ORC_ARM_A3, ORC_ARM_A3, ORC_ARM_A2);
        orc_arm_emit_store_reg (compiler, ORC_ARM_A3, compiler->exec_reg,
            (int)ORC_STRUCT_OFFSET(OrcExecutor, arrays[i]));
        break;
      case ORC_VAR_TYPE_ACCUMULATOR:
        break;
      case ORC_VAR_TYPE_TEMP:
        break;
      default:
        ORC_COMPILER_ERROR(compiler,"bad vartype");
        break;
    }
  }
}
Ejemplo n.º 3
0
void
powerpc_load_inner_constants (OrcCompiler *compiler)
{
  int i;

  for(i=0;i<ORC_N_COMPILER_VARIABLES;i++){
    if (compiler->vars[i].name == NULL) continue;
    switch (compiler->vars[i].vartype) {
      case ORC_VAR_TYPE_SRC:
      case ORC_VAR_TYPE_DEST:
        if (compiler->vars[i].ptr_register) {
          if (compiler->is_64bit) {
            powerpc_emit_ld (compiler,
                compiler->vars[i].ptr_register,
                POWERPC_R3,
                (int)ORC_STRUCT_OFFSET(OrcExecutor, arrays[i]));
          } else {
            powerpc_emit_lwz (compiler,
                compiler->vars[i].ptr_register,
                POWERPC_R3,
                (int)ORC_STRUCT_OFFSET(OrcExecutor, arrays[i]));
          }
        } else {
          /* FIXME */
          ORC_ASM_CODE(compiler,"ERROR");
        }
        break;
      default:
        break;
    }
  }
}
Ejemplo n.º 4
0
void
orc_x86_assemble_copy (OrcCompiler *compiler)
{
  OrcInstruction *insn;
  int shift = 0;

  insn = compiler->program->insns + 0;

  if (strcmp (insn->opcode->name, "copyw") == 0) {
    shift = 1;
  } else if (strcmp (insn->opcode->name, "copyl") == 0) {
    shift = 2;
  }

  compiler->used_regs[X86_EDI] = TRUE;
  compiler->used_regs[X86_ESI] = TRUE;

  orc_x86_emit_prologue (compiler);

  orc_x86_emit_mov_memoffset_reg (compiler, 4,
      (int)ORC_STRUCT_OFFSET(OrcExecutor,arrays[insn->dest_args[0]]),
      compiler->exec_reg, X86_EDI);
  orc_x86_emit_mov_memoffset_reg (compiler, 4,
      (int)ORC_STRUCT_OFFSET(OrcExecutor,arrays[insn->src_args[0]]),
      compiler->exec_reg, X86_ESI);
  orc_x86_emit_mov_memoffset_reg (compiler, 4,
      (int)ORC_STRUCT_OFFSET(OrcExecutor,n), compiler->exec_reg,
      compiler->gp_tmpreg);

  orc_x86_emit_sar_imm_reg (compiler, 4, 2 - shift, compiler->gp_tmpreg);
  orc_x86_emit_rep_movs (compiler, 4);
  if (shift == 0) {
    orc_x86_emit_mov_memoffset_reg (compiler, 4,
        (int)ORC_STRUCT_OFFSET(OrcExecutor,n), compiler->exec_reg,
        compiler->gp_tmpreg);
    orc_x86_emit_and_imm_reg (compiler, 4, 3, compiler->gp_tmpreg);
    orc_x86_emit_rep_movs (compiler, 1);
  }
  if (shift == 1) {
    orc_x86_emit_mov_memoffset_reg (compiler, 4,
        (int)ORC_STRUCT_OFFSET(OrcExecutor,n), compiler->exec_reg,
        compiler->gp_tmpreg);
    orc_x86_emit_and_imm_reg (compiler, 4, 1, compiler->gp_tmpreg);
    orc_x86_emit_rep_movs (compiler, 2);
  }

  orc_x86_emit_epilogue (compiler);

  orc_x86_do_fixups (compiler);
}
Ejemplo n.º 5
0
void
orc_x86_emit_epilogue (OrcCompiler *compiler)
{
#if 0
  orc_x86_emit_rdtsc(compiler);
  orc_x86_emit_mov_reg_memoffset (compiler, 4, X86_EAX,
      ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_A4]), compiler->exec_reg);
#endif

  if (compiler->is_64bit) {
    int i;
    for(i=15;i>=0;i--){
      if (compiler->used_regs[ORC_GP_REG_BASE+i] &&
          compiler->save_regs[ORC_GP_REG_BASE+i]) {
        orc_x86_emit_pop (compiler, 8, ORC_GP_REG_BASE+i);
      }
    }
  } else {
    if (compiler->used_regs[X86_EBX]) {
      orc_x86_emit_pop (compiler, 4, X86_EBX);
    }
    if (compiler->used_regs[X86_ESI]) {
      orc_x86_emit_pop (compiler, 4, X86_ESI);
    }
    if (compiler->used_regs[X86_EDI]) {
      orc_x86_emit_pop (compiler, 4, X86_EDI);
    }
    orc_x86_emit_pop (compiler, 4, X86_EBP);
  }
  orc_x86_emit_ret (compiler);
}
Ejemplo n.º 6
0
void
orc_sse_restore_mxcsr (OrcCompiler *compiler)
{
  orc_x86_emit_cpuinsn_load_memoffset (compiler, ORC_X86_ldmxcsr, 4, 0,
      (int)ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_A4]),
      compiler->exec_reg, 0);
}
Ejemplo n.º 7
0
void
orc_compiler_orc_arm_assemble (OrcCompiler *compiler)
{
  int dest_var = ORC_VAR_D1;

  compiler->vars[dest_var].is_aligned = FALSE;

  orc_arm_emit_prologue (compiler);

  orc_arm_load_constants_outer (compiler);

  if (compiler->program->is_2d) {
    if (compiler->program->constant_m > 0) {
      orc_arm_emit_load_imm (compiler, ORC_ARM_A3, compiler->program->constant_m
);    
      orc_arm_emit_store_reg (compiler, ORC_ARM_A3, compiler->exec_reg,
          (int)ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_A2]));
    } else {
      orc_arm_emit_load_reg (compiler, ORC_ARM_A3, compiler->exec_reg,
          (int)ORC_STRUCT_OFFSET(OrcExecutor, params[ORC_VAR_A1]));
      orc_arm_emit_store_reg (compiler, ORC_ARM_A3, compiler->exec_reg,
          (int)ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_A2]));
    }
    
    orc_arm_emit_label (compiler, 8);
  }

  orc_arm_emit_load_reg (compiler, ORC_ARM_IP, compiler->exec_reg,
      (int)ORC_STRUCT_OFFSET(OrcExecutor,n));
  orc_arm_load_constants_inner (compiler);

  orc_arm_emit_label (compiler, 1);

  orc_arm_emit_cmp_i (compiler, ORC_ARM_COND_AL, ORC_ARM_IP, 0);
  orc_arm_emit_branch (compiler, ORC_ARM_COND_EQ, 3);

  orc_arm_emit_label (compiler, 2);
  orc_arm_emit_loop (compiler);
  orc_arm_emit_sub_i (compiler, ORC_ARM_COND_AL, 0, ORC_ARM_IP, ORC_ARM_IP, 1);
  orc_arm_emit_cmp_i (compiler, ORC_ARM_COND_AL, ORC_ARM_IP, 0);
  orc_arm_emit_branch (compiler, ORC_ARM_COND_NE, 2);
  orc_arm_emit_label (compiler, 3);

  if (compiler->program->is_2d) {
    arm_add_strides (compiler);

    orc_arm_emit_load_reg (compiler, ORC_ARM_A3, compiler->exec_reg,
        (int)ORC_STRUCT_OFFSET(OrcExecutor, params[ORC_VAR_A2]));
    orc_arm_emit_sub_imm (compiler, ORC_ARM_A3, ORC_ARM_A3, 1, TRUE);
    orc_arm_emit_store_reg (compiler, ORC_ARM_A3, compiler->exec_reg,
        (int)ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_A2]));
    orc_arm_emit_branch (compiler, ORC_ARM_COND_NE, 8);
  }

  orc_arm_emit_epilogue (compiler);

  orc_arm_do_fixups (compiler);
}
Ejemplo n.º 8
0
void
orc_arm_load_constants_inner (OrcCompiler *compiler)
{
  int i;
  for(i=0;i<ORC_N_COMPILER_VARIABLES;i++){
    if (compiler->vars[i].name == NULL) continue;
    switch (compiler->vars[i].vartype) {
      case ORC_VAR_TYPE_CONST:
      case ORC_VAR_TYPE_PARAM:
        break;
      case ORC_VAR_TYPE_SRC:
      case ORC_VAR_TYPE_DEST:
        orc_arm_emit_load_reg (compiler, 
            compiler->vars[i].ptr_register,
            compiler->exec_reg, ORC_STRUCT_OFFSET(OrcExecutor, arrays[i]));
        break;
      default:
        break;
    }
  }
}
Ejemplo n.º 9
0
void
orc_x86_emit_prologue (OrcCompiler *compiler)
{
  orc_compiler_append_code(compiler,".global %s\n", compiler->program->name);
  orc_compiler_append_code(compiler,".p2align 4\n");
  orc_compiler_append_code(compiler,"%s:\n", compiler->program->name);
  if (compiler->is_64bit) {
    int i;
    for(i=0;i<16;i++){
      if (compiler->used_regs[ORC_GP_REG_BASE+i] &&
          compiler->save_regs[ORC_GP_REG_BASE+i]) {
        orc_x86_emit_push (compiler, 8, ORC_GP_REG_BASE+i);
      }
    }
  } else {
    orc_x86_emit_push (compiler, 4, X86_EBP);
    if (compiler->use_frame_pointer) {
      orc_x86_emit_mov_reg_reg (compiler, 4, X86_ESP, X86_EBP);
    }
    orc_x86_emit_mov_memoffset_reg (compiler, 4, 8, X86_ESP, compiler->exec_reg);
    if (compiler->used_regs[X86_EDI]) {
      orc_x86_emit_push (compiler, 4, X86_EDI);
    }
    if (compiler->used_regs[X86_ESI]) {
      orc_x86_emit_push (compiler, 4, X86_ESI);
    }
    if (compiler->used_regs[X86_EBX]) {
      orc_x86_emit_push (compiler, 4, X86_EBX);
    }
  }

#if 0
  orc_x86_emit_rdtsc(compiler);
  orc_x86_emit_mov_reg_memoffset (compiler, 4, X86_EAX,
      ORC_STRUCT_OFFSET(OrcExecutor,params[ORC_VAR_A3]), compiler->exec_reg);
#endif
}
Ejemplo n.º 10
0
void
orc_compiler_powerpc_assemble (OrcCompiler *compiler)
{
  int j;
  int k;
  OrcInstruction *insn;
  OrcStaticOpcode *opcode;
  //OrcVariable *args[10];
  OrcRule *rule;
  int label_outer_loop_start;
  int label_loop_start;
  int label_leave;
  int set_vscr = FALSE;

  label_outer_loop_start = orc_compiler_label_new (compiler);
  label_loop_start = orc_compiler_label_new (compiler);
  label_leave = orc_compiler_label_new (compiler);

  powerpc_emit_prologue (compiler);

  if (orc_program_has_float (compiler)) {
    int tmp = POWERPC_V0;

    set_vscr = TRUE;

    ORC_ASM_CODE(compiler,"  vspltish %s, %d\n",
        powerpc_get_regname(tmp), 1);
    powerpc_emit_VX(compiler, 0x1000034c,
        powerpc_regnum(tmp), 1, 0);

    powerpc_emit_VX_b(compiler, "mtvscr", 0x10000644, tmp);
  }

  if (compiler->program->is_2d) {
    powerpc_emit_lwz (compiler, POWERPC_R0, POWERPC_R3,
        (int)ORC_STRUCT_OFFSET(OrcExecutorAlt, m));
    powerpc_emit_srawi (compiler, POWERPC_R0, POWERPC_R0,
        compiler->loop_shift, 1);
    powerpc_emit_beq (compiler, label_leave);
    powerpc_emit_stw (compiler, POWERPC_R0, POWERPC_R3,
        (int)ORC_STRUCT_OFFSET(OrcExecutorAlt, m_index));
  }

  //powerpc_load_constants (compiler);
  powerpc_load_inner_constants (compiler);

  for(k=0;k<4;k++){
    OrcVariable *var = &compiler->vars[ORC_VAR_A1 + k];

    if (compiler->vars[ORC_VAR_A1 + k].name == NULL) continue;

      //powerpc_emit_VX_2(p, "vxor", 0x100004c4, reg, reg, reg);
    powerpc_emit_vxor (compiler, var->alloc, var->alloc, var->alloc);
  }

  powerpc_emit_label (compiler, label_outer_loop_start);

  powerpc_emit_lwz (compiler, POWERPC_R0, POWERPC_R3,
      (int)ORC_STRUCT_OFFSET(OrcExecutor, n));
  powerpc_emit_srawi (compiler, POWERPC_R0, POWERPC_R0,
      compiler->loop_shift, 1);

  powerpc_emit_beq (compiler, label_leave);

  powerpc_emit (compiler, 0x7c0903a6);
  ORC_ASM_CODE (compiler, "  mtctr %s\n", powerpc_get_regname(POWERPC_R0));

  powerpc_emit_label (compiler, label_loop_start);

  for(j=0;j<compiler->n_insns;j++){
    insn = compiler->insns + j;
    opcode = insn->opcode;

    compiler->insn_index = j;

    ORC_ASM_CODE(compiler,"# %d: %s\n", j, insn->opcode->name);

#if 0
    /* set up args */
    for(k=0;k<opcode->n_src + opcode->n_dest;k++){
      args[k] = compiler->vars + insn->args[k];
      ORC_ASM_CODE(compiler," %d", args[k]->alloc);
      if (args[k]->is_chained) {
        ORC_ASM_CODE(compiler," (chained)");
      }
    }
    ORC_ASM_CODE(compiler,"\n");
#endif

    for(k=0;k<ORC_STATIC_OPCODE_N_SRC;k++){
      OrcVariable *var = compiler->vars + insn->src_args[k];

      if (opcode->src_size[k] == 0) continue;

      switch (var->vartype) {
        case ORC_VAR_TYPE_SRC:
        case ORC_VAR_TYPE_DEST:
          //powerpc_emit_load_src (compiler, var);
          break;
        case ORC_VAR_TYPE_CONST:
          break;
        case ORC_VAR_TYPE_TEMP:
          break;
        default:
          break;
      }
    }

    compiler->min_temp_reg = ORC_VEC_REG_BASE;

    rule = insn->rule;
    if (rule) {
      rule->emit (compiler, rule->emit_user, insn);
    } else {
      ORC_ASM_CODE(compiler,"No rule for: %s\n", opcode->name);
    }

    for(k=0;k<ORC_STATIC_OPCODE_N_DEST;k++){
      OrcVariable *var = compiler->vars + insn->dest_args[k];

      if (opcode->dest_size[k] == 0) continue;

      switch (var->vartype) {
        case ORC_VAR_TYPE_DEST:
          //powerpc_emit_store_dest (compiler, var);
          break;
        case ORC_VAR_TYPE_TEMP:
          break;
        default:
          break;
      }
    }
  }

  for(k=0;k<ORC_N_COMPILER_VARIABLES;k++){
    if (compiler->vars[k].name == NULL) continue;
    if (compiler->vars[k].vartype == ORC_VAR_TYPE_SRC ||
        compiler->vars[k].vartype == ORC_VAR_TYPE_DEST) {
      if (compiler->vars[k].ptr_register) {
        powerpc_emit_addi (compiler,
            compiler->vars[k].ptr_register,
            compiler->vars[k].ptr_register,
            compiler->vars[k].size << compiler->loop_shift);
      } else {
        ORC_ASM_CODE(compiler,"ERROR\n");
      }
    }
  }

  powerpc_emit_bne (compiler, label_loop_start);

  if (compiler->program->is_2d) {
    powerpc_emit_lwz (compiler, POWERPC_R0, POWERPC_R3,
        (int)ORC_STRUCT_OFFSET(OrcExecutorAlt, m_index));
    powerpc_emit_addi_rec (compiler, POWERPC_R0, POWERPC_R0, -1);
    powerpc_emit_beq (compiler, label_leave);

    powerpc_emit_stw (compiler, POWERPC_R0, POWERPC_R3,
        (int)ORC_STRUCT_OFFSET(OrcExecutorAlt, m_index));

    for(k=0;k<ORC_N_COMPILER_VARIABLES;k++){
      if (compiler->vars[k].name == NULL) continue;
      if (compiler->vars[k].vartype == ORC_VAR_TYPE_SRC ||
          compiler->vars[k].vartype == ORC_VAR_TYPE_DEST) {
        if (compiler->vars[k].ptr_register) {
          if (compiler->is_64bit) {
            powerpc_emit_ld (compiler,
                compiler->vars[k].ptr_register,
                POWERPC_R3,
                (int)ORC_STRUCT_OFFSET(OrcExecutor, arrays[k]));
          } else {
            powerpc_emit_lwz (compiler,
                compiler->vars[k].ptr_register,
                POWERPC_R3,
                (int)ORC_STRUCT_OFFSET(OrcExecutor, arrays[k]));
          }
          powerpc_emit_lwz (compiler,
              POWERPC_R0,
              POWERPC_R3,
              (int)ORC_STRUCT_OFFSET(OrcExecutorAlt, strides[k]));
          powerpc_emit_add (compiler,
              compiler->vars[k].ptr_register,
              compiler->vars[k].ptr_register,
	      POWERPC_R0);
          if (compiler->is_64bit) {
            powerpc_emit_std (compiler,
                compiler->vars[k].ptr_register,
                POWERPC_R3,
                (int)ORC_STRUCT_OFFSET(OrcExecutor, arrays[k]));
          } else {
            powerpc_emit_stw (compiler,
                compiler->vars[k].ptr_register,
                POWERPC_R3,
                (int)ORC_STRUCT_OFFSET(OrcExecutor, arrays[k]));
          }
        } else {
          ORC_ASM_CODE(compiler,"ERROR\n");
        }
      }
    }

    powerpc_emit_b (compiler, label_outer_loop_start);
  }

  powerpc_emit_label (compiler, label_leave);

  for(k=0;k<4;k++){
    OrcVariable *var = &compiler->vars[ORC_VAR_A1 + k];

    if (compiler->vars[ORC_VAR_A1 + k].name == NULL) continue;

    powerpc_emit_addi (compiler,
        POWERPC_R0,
        POWERPC_R3,
        (int)ORC_STRUCT_OFFSET(OrcExecutor, accumulators[k]));

    if (var->size == 2) {
      powerpc_emit_vxor (compiler, POWERPC_V0, POWERPC_V0, POWERPC_V0);
      powerpc_emit_vmrghh (compiler, var->alloc, POWERPC_V0, var->alloc);
    }

    ORC_ASM_CODE(compiler,"  lvsr %s, 0, %s\n", 
        powerpc_get_regname (POWERPC_V0),
        powerpc_get_regname (POWERPC_R0));
    powerpc_emit_X (compiler, 0x7c00004c, powerpc_regnum(POWERPC_V0),
        0, powerpc_regnum(POWERPC_R0));

    powerpc_emit_vperm (compiler, var->alloc, var->alloc, var->alloc,
        POWERPC_V0);

    ORC_ASM_CODE(compiler,"  stvewx %s, 0, %s\n", 
      powerpc_get_regname (var->alloc),
      powerpc_get_regname (POWERPC_R0));
    powerpc_emit_X (compiler, 0x7c00018e,
        powerpc_regnum(var->alloc),
        0, powerpc_regnum(POWERPC_R0));
  }

  if (set_vscr) {
    int tmp = POWERPC_V0;

    ORC_ASM_CODE(compiler,"  vspltisw %s, %d\n",
        powerpc_get_regname(tmp), 0);
    powerpc_emit_VX(compiler, 0x1000038c,
        powerpc_regnum(tmp), 0, 0);

    powerpc_emit_VX_b(compiler, "mtvscr", 0x10000644, tmp);
  }
  powerpc_emit_epilogue (compiler);

  powerpc_do_fixups (compiler);
}
Ejemplo n.º 11
0
static void
powerpc_rule_loadpX (OrcCompiler *compiler, void *user, OrcInstruction *insn)
{
  OrcVariable *src = compiler->vars + insn->src_args[0];
  OrcVariable *dest = compiler->vars + insn->dest_args[0];
  int size = ORC_PTR_TO_INT(user);

  if (src->vartype == ORC_VAR_TYPE_PARAM) {
    int greg = compiler->gp_tmpreg;

    powerpc_emit_addi (compiler,
        greg, POWERPC_R3,
        (int)ORC_STRUCT_OFFSET(OrcExecutor, params[insn->src_args[0]]));
    ORC_ASM_CODE(compiler,"  lvewx %s, 0, %s\n",
        powerpc_get_regname (dest->alloc),
        powerpc_get_regname (greg));
    powerpc_emit_X (compiler, 0x7c00008e, powerpc_regnum(dest->alloc),
        0, powerpc_regnum(greg));

    ORC_ASM_CODE(compiler,"  lvsl %s, 0, %s\n",
        powerpc_get_regname (POWERPC_V0),
        powerpc_get_regname (greg));
    powerpc_emit_X (compiler, 0x7c00000c, powerpc_regnum(POWERPC_V0),
        0, powerpc_regnum(greg));

    powerpc_emit_vperm (compiler, dest->alloc, dest->alloc, dest->alloc,
        POWERPC_V0);
    switch (size) {
      case 1:
        ORC_ASM_CODE(compiler,"  vspltb %s, %s, 3\n",
            powerpc_get_regname (dest->alloc),
            powerpc_get_regname (dest->alloc));
        powerpc_emit_VX (compiler, 0x1000020c,
            powerpc_regnum(dest->alloc), 3, powerpc_regnum(dest->alloc));
        break;
      case 2:
        ORC_ASM_CODE(compiler,"  vsplth %s, %s, 1\n",
            powerpc_get_regname (dest->alloc),
            powerpc_get_regname (dest->alloc));
        powerpc_emit_VX (compiler, 0x1000024c,
            powerpc_regnum(dest->alloc), 1, powerpc_regnum(dest->alloc));
        break;
      case 4:
        ORC_ASM_CODE(compiler,"  vspltw %s, %s, 0\n",
            powerpc_get_regname (dest->alloc),
            powerpc_get_regname (dest->alloc));
        powerpc_emit_VX (compiler, 0x1000028c,
            powerpc_regnum(dest->alloc), 0, powerpc_regnum(dest->alloc));
        break;
    }
  } else {
    int value = src->value.i;

    switch (size) {
      case 1:
        if (value < 16 && value >= -16) {
          ORC_ASM_CODE(compiler,"  vspltisb %s, %d\n",
              powerpc_get_regname(dest->alloc), value&0x1f);
          powerpc_emit_VX(compiler, 0x1000030c,
              powerpc_regnum(dest->alloc), value & 0x1f, 0);
        } else {
          value &= 0xff;
          value |= value << 8;
          value |= value << 16;
          powerpc_load_long_constant (compiler, dest->alloc, value, value,
              value, value);
        }
        break;
      case 2:
        if (value < 16 && value >= -16) {
          ORC_ASM_CODE(compiler,"  vspltish %s, %d\n",
              powerpc_get_regname(dest->alloc), value&0x1f);
          powerpc_emit_VX(compiler, 0x1000034c,
              powerpc_regnum(dest->alloc), value & 0x1f, 0);
        } else {
          value &= 0xffff;
          value |= value << 16;
          powerpc_load_long_constant (compiler, dest->alloc, value, value,
              value, value);
        }
        break;
      case 4:
        if (value < 16 && value >= -16) {
          ORC_ASM_CODE(compiler,"  vspltisw %s, %d\n",
              powerpc_get_regname(dest->alloc), value&0x1f);
          powerpc_emit_VX(compiler, 0x1000038c,
              powerpc_regnum(dest->alloc), value & 0x1f, 0);
        } else {
          powerpc_load_long_constant (compiler, dest->alloc, value, value,
              value, value);
        }
        break;
    }
  }

}