Re: [PATCH 08/13] S/390 zvector builtin support.

[Jeff Law <law@redhat.com>]

On 05/11/2015 07:40 AM, Andreas Krebbel wrote:
> With this patch GCC implements an Altivec style set of builtins to
> make use of vector instructions in C/C++ code.  This is provided for
> compatibility with the IBM XL compiler.
>
> gcc/
> 	* config.gcc: Add vecintrin.h to extra_headers.  Add s390-c.o to
> 	c_target_objs and cxx_target_objs.  Add t-s390 to tmake_file.
> 	* config/s390/s390-builtin-types.def: New file.
> 	* config/s390/s390-builtins.def: New file.
> 	* config/s390/s390-builtins.h: New file.
> 	* config/s390/s390-c.c: New file.
> 	* config/s390/s390-modes.def: Add modes CCVEQANY, CCVH,
> 	CCVHANY, CCVHU, CCVHUANY, CCVFHANY, CCVFHEANY.
> 	* config/s390/s390-protos.h (s390_expand_vec_compare_cc)
> 	(s390_cpu_cpp_builtins, s390_register_target_pragmas): Add
> 	prototypes.
> 	* config/s390/s390.c (s390-builtins.h, s390-builtins.def):
> 	Include.
> 	(flags_builtin, flags_overloaded_builtin_var, s390_builtin_types)
> 	(s390_builtin_fn_types, s390_builtin_decls, code_for_builtin): New
> 	variable definitions.
> 	(s390_const_operand_ok): New function.
> 	(s390_expand_builtin): Rewrite.
> 	(s390_init_builtins): New function.
> 	(s390_handle_vectorbool_attribute): New function.
> 	(s390_attribute_table): Add s390_vector_bool attribute.
> 	(s390_match_ccmode_set): Handle new cc modes CCVH, CCVHU.
> 	(s390_branch_condition_mask): Generate masks for new modes.
> 	(s390_expand_vec_compare_cc): New function.
> 	(s390_mangle_type): Add mangling for vector bool types.
> 	(enum s390_builtin): Remove.
> 	(s390_atomic_assign_expand_fenv): Rename constants for sfpc and
> 	efpc builtins.
> 	* config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Call
> 	s390_cpu_cpp_builtins.
> 	(REGISTER_TARGET_PRAGMAS): New macro.
> 	* config/s390/s390.md: Define more UNSPEC_VEC_* constants.
> 	(insn_cmp mode attribute): Add new CC modes.
> 	(s390_sfpc, s390_efpc): Rename patterns to sfpc and efpc.
> 	(lcbb): New pattern definition.
> 	* config/s390/s390intrin.h: Include vecintrin.h.
> 	* config/s390/t-s390: New file.
> 	* config/s390/vecintrin.h: New file.
> 	* config/s390/vector.md: Include vx-builtins.md.
> 	* config/s390/vx-builtins.md: New file.S/390 zvector builtin support.
Just in case there's any question, the config.gcc bits here fall in the 
port maintainer's area.  So you can self-approve this entire patch :-)

jeff