[AArch64] Implement TARGET_GIMPLE_FOLD_BUILTIN for aarch64 backend.
gcc/
* config/aarch64/aarch64-builtins.c
(aarch64_gimple_fold_builtin): New.
* config/aarch64/aarch64-protos.h (aarch64_gimple_fold_builtin): New.
* config/aarch64/aarch64-simd-builtins.def (addv): New.
* config/aarch64/aarch64-simd.md (addpv4sf): New.
(addvv4sf): Update.
* config/aarch64/aarch64.c (TARGET_GIMPLE_FOLD_BUILTIN): Define.
gcc/testsuite/
* gcc.target/aarch64/vaddv-intrinsic.c: New.
* gcc.target/aarch64/vaddv-intrinsic-compile.c: Likewise.
* gcc.target/aarch64/vaddv-intrinsic.x: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198304
138bc75d-0d04-0410-961f-
82ee72b054a4