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#### 6.62.25.6 Basic PowerPC Built-in Functions Available on ISA 3.1

The basic built-in functions described in this section are available on the PowerPC family of processors starting with ISA 3.1. Unless specific options are explicitly disabled on the command line, specifying option `-mcpu=power10` has the effect of enabling all the same options as for `-mcpu=power9`.

The following built-in functions are available on Linux 64-bit systems that use a future architecture instruction set (`-mcpu=power10`):

Built-in Function: unsigned long long __builtin_cfuged (unsigned long long, unsigned long long)

  Perform a 64-bit centrifuge operation, as if implemented by the `cfuged` instruction.

Built-in Function: unsigned long long __builtin_cntlzdm (unsigned long long, unsigned long long)

  Perform a 64-bit count leading zeros operation under mask, as if implemented by the `cntlzdm` instruction.

Built-in Function: unsigned long long __builtin_cnttzdm (unsigned long long, unsigned long long)

  Perform a 64-bit count trailing zeros operation under mask, as if implemented by the `cnttzdm` instruction.

Built-in Function: unsigned long long __builtin_pdepd (unsigned long long, unsigned long long)

  Perform a 64-bit parallel bits deposit operation, as if implemented by the `pdepd` instruction.

Built-in Function: unsigned long long __builtin_pextd (unsigned long long, unsigned long long)

  Perform a 64-bit parallel bits extract operation, as if implemented by the `pextd` instruction.

Built-in Function: vector signed __int128 vsx_xl_sext (signed long long, signed char *)
Built-in Function: vector signed __int128 vsx_xl_sext (signed long long, signed short *)
Built-in Function: vector signed __int128 vsx_xl_sext (signed long long, signed int *)
Built-in Function: vector signed __int128 vsx_xl_sext (signed long long, signed long long *)
Built-in Function: vector unsigned __int128 vsx_xl_zext (signed long long, unsigned char *)
Built-in Function: vector unsigned __int128 vsx_xl_zext (signed long long, unsigned short *)
Built-in Function: vector unsigned __int128 vsx_xl_zext (signed long long, unsigned int *)
Built-in Function: vector unsigned __int128 vsx_xl_zext (signed long long, unsigned long long *)

  Load (and sign extend) to an __int128 vector, as if implemented by the ISA 3.1 `lxvrbx`, `lxvrhx`, `lxvrwx`, and `lxvrdx` instructions.

Built-in Function: void vec_xst_trunc (vector signed __int128, signed long long, signed char *)
Built-in Function: void vec_xst_trunc (vector signed __int128, signed long long, signed short *)
Built-in Function: void vec_xst_trunc (vector signed __int128, signed long long, signed int *)
Built-in Function: void vec_xst_trunc (vector signed __int128, signed long long, signed long long *)
Built-in Function: void vec_xst_trunc (vector unsigned __int128, signed long long, unsigned char *)
Built-in Function: void vec_xst_trunc (vector unsigned __int128, signed long long, unsigned short *)
Built-in Function: void vec_xst_trunc (vector unsigned __int128, signed long long, unsigned int *)
Built-in Function: void vec_xst_trunc (vector unsigned __int128, signed long long, unsigned long long *)

  Truncate and store the rightmost element of a vector, as if implemented by the ISA 3.1 `stxvrbx`, `stxvrhx`, `stxvrwx`, and `stxvrdx` instructions.

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