Basic PowerPC Built-in Functions Available on ISA 3.1 (Using the GNU Compiler Collection (GCC))

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.