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Add new vector instructions to clear leftmost and rightmost bytes. [gcc] 2020-05-11 Kelvin Nilsen <kelvin@gcc.gnu.org> * config/rs6000/altivec.h (vec_clrl): New #define. (vec_clrr): Likewise. * config/rs6000/altivec.md (UNSPEC_VCLRLB): New constant. (UNSPEC_VCLRRB): Likewise. (vclrlb): New insn. (vclrrb): Likewise. * config/rs6000/rs6000-builtin.def (__builtin_altivec_vclrlb): New built-in function. (__builtin_altivec_vclrrb): Likewise. (__builtin_vec_clrl): New overloaded built-in function. (__builtin_vec_clrr): Likewise. * config/rs6000/rs6000-call.c (altivec_overloaded_builtins): Define overloaded forms of __builtin_vec_clrl and __builtin_vec_clrr. * doc/extend.texi (PowerPC AltiVec Built-in Functions Available for a Future Architecture): Add descriptions of vec_clrl and vec_clrr. [gcc/testsuite] 2020-05-11 Kelvin Nilsen <kelvin@gcc.gnu.org> * gcc.target/powerpc/vec-clrl-0.c: New. * gcc.target/powerpc/vec-clrl-1.c: New. * gcc.target/powerpc/vec-clrr-0.c: New. * gcc.target/powerpc/vec-clrr-1.c: New.
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