RISC-V: Add support for the XAndesperf ISA extension.

This patch adds support for the XAndesperf ISA extension.
The 32-bit AndeStar V5 extension includes branch instructions,
load effective address instructions, and string processing
instructions for performance improvement.
New INSN patterns are added into the new file andes.md
as a seprated vender extension.

gcc/ChangeLog:

	* config/riscv/constraints.md (Ou07): New constraint.
	(ads_Bext): New constraint.
	* config/riscv/iterators.md (ANYLE32): New iterator.
	(sizen): New iterator.
	(sh_limit): New iterator.
	(sh_bit): New iterator.
	(cs): New iterator.
	* config/riscv/predicates.md (ads_branch_bbcs_operand): New predicate.
	(ads_branch_bimm_operand): New predicate.
	(ads_imm_extract_operand): New predicate.
	(ads_extract_size_imm_si): New predicate.
	(ads_extract_size_imm_di): New predicate.
	(const_int5_operand): New predicate.
	* config/riscv/riscv-builtins.cc:
	Add new AVAIL andesperf32 and andesperf64.
	Add new define RISCV_ATYPE_DI.
	* config/riscv/riscv-ftypes.def: New DEF_RISCV_FTYPE.
	* config/riscv/riscv.cc
	(riscv_extend_cost): Cost for pattern 'bfo'.
	(riscv_rtx_costs): Cost for XAndesperf extension.
	* config/riscv/riscv.md: Add support for XAndesperf to patterns
	zero_extendsidi2_internal, zero_extendhi2, extendsidi2_internal,
	extend<SHORT:mode><SUPERQI:mode>2, <any_extract:optab><GPR:mode>3
	and branch_on_bit.
	* config/riscv/vector-iterators.md
	(sz): Add sign_extract and zero_extract.
	* config/riscv/andes.def: New file for vender Andes.
	* config/riscv/andes.md: New file for vender Andes.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/riscv.exp: Add runtest for subdir xandes.
	* gcc.target/riscv/xandes/xandesperf-1.c: New test.
	* gcc.target/riscv/xandes/xandesperf-10.c: New test.
	* gcc.target/riscv/xandes/xandesperf-2.c: New test.
	* gcc.target/riscv/xandes/xandesperf-3.c: New test.
	* gcc.target/riscv/xandes/xandesperf-4.c: New test.
	* gcc.target/riscv/xandes/xandesperf-5.c: New test.
	* gcc.target/riscv/xandes/xandesperf-6.c: New test.
	* gcc.target/riscv/xandes/xandesperf-7.c: New test.
	* gcc.target/riscv/xandes/xandesperf-8.c: New test.
	* gcc.target/riscv/xandes/xandesperf-9.c: New test.

0 files changed, 0 insertions, 0 deletions