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In fact rev8/orc.b/zext.h are the aliases of grevi/gorci/pack[w], so we should update them to INSN_ALIAS when we have supported their true instruction in the future. Though we still use the [MATCH|MAKS]_[GREVI|GORCI|PACK|PACKW] to encode them. Besides, the orc.b has the same encoding both in rv32 and rv64, so we just keep one of them in the opcode table. This patch is implemented according to the following link, https://github.com/riscv/riscv-bitmanip/pull/101 2021-01-07 Claire Xenia Wolf <claire@symbioticeda.com> Jim Wilson <jimw@sifive.com> Andrew Waterman <andrew@sifive.com> Maxim Blinov <maxim.blinov@embecosm.com> Kito Cheng <kito.cheng@sifive.com> Nelson Chu <nelson.chu@sifive.com> bfd/ * elfxx-riscv.c (riscv_std_z_ext_strtab): Added zba, zbb and zbc. gas/ * config/tc-riscv.c (riscv_multi_subset_supports): Handle INSN_CLASS_ZB*. (riscv_get_default_ext_version): Do not check the default_isa_spec when the version defined in the riscv_opcodes table is ISA_SPEC_CLASS_DRAFT. * testsuite/gas/riscv/bitmanip-insns-32.d: New testcase. * testsuite/gas/riscv/bitmanip-insns-64.d: Likewise. * testsuite/gas/riscv/bitmanip-insns.s: Likewise. include/ * opcode/riscv-opc.h: Added MASK/MATCH/DECLARE_INSN for ZBA/ZBB/ZBC. * opcode/riscv.h (riscv_insn_class): Added INSN_CLASS_ZB*. (enum riscv_isa_spec_class): Added ISA_SPEC_CLASS_DRAFT for the frozen extensions. opcodes/ * riscv-opc.c (riscv_opcodes): Add ZBA/ZBB/ZBC instructions. (MASK_RVB_IMM): Used for rev8 and orc.b encoding. |
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