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Historically, flags and variables relating to architectural revisions for the A-profile architecture omitted the trailing `A' such that, for example, assembling for `-march=armv8.4-a' set the `AARCH64_ARCH_V8_4' flag in the assembler. This leads to some ambiguity, since Binutils also targets the R-profile Arm architecture. Therefore, it seems prudent to have everything associated with the A-profile cores end in `A' and likewise `R' for the R-profile. Referring back to the example above, the flag set for `-march=armv8.4-a' is better characterized if labeled `AARCH64_ARCH_V8_4A'. The only exception to the rule of appending `A' to variables is found in the handling of the `AARCH64_FEATURE_V8' macro, as it is the baseline from which ALL processors derive and should therefore be left unchanged. In reflecting the `ARM' architectural nomenclature choices, where we have `ARM_ARCH_V8A' and `ARM_ARCH_V8R', the choice is made to not have an underscore separating the numerical revision number and the A/R-profile indicator suffix. This has meant that renaming of R-profile related flags and variables was warranted, thus going from `.*_[vV]8_[rR]' to `.*_[vV]8[rR]'. Finally, this is more in line with conventions within GCC and adds consistency across the toolchain. gas/ChangeLog: * gas/config/tc-aarch64.c: (aarch64_cpus): Reference to arch feature macros updated. (aarch64_archs): Likewise. include/ChangeLog: * include/opcode/aarch64.h: (AARCH64_FEATURE_V8A): Updated name: V8_A -> V8A. (AARCH64_FEATURE_V8_1A): A-suffix added. (AARCH64_FEATURE_V8_2A): Likewise. (AARCH64_FEATURE_V8_3A): Likewise. (AARCH64_FEATURE_V8_4A): Likewise. (AARCH64_FEATURE_V8_5A): Likewise. (AARCH64_FEATURE_V8_6A): Likewise. (AARCH64_FEATURE_V8_7A): Likewise. (AARCH64_FEATURE_V8_8A):Likewise. (AARCH64_FEATURE_V9A): Likewise. (AARCH64_FEATURE_V8R): Updated name: V8_R -> V8R. (AARCH64_ARCH_V8A_FEATURES): Updated name: V8_A -> V8A. (AARCH64_ARCH_V8_1A_FEATURES): A-suffix added. (AARCH64_ARCH_V8_2A_FEATURES): Likewise. (AARCH64_ARCH_V8_3A_FEATURES): Likewise. (AARCH64_ARCH_V8_4A_FEATURES): Likewise. (AARCH64_ARCH_V8_5A_FEATURES): Likewise. (AARCH64_ARCH_V8_6A_FEATURES): Likewise. (AARCH64_ARCH_V8_7A_FEATURES): Likewise. (AARCH64_ARCH_V8_8A_FEATURES): Likewise. (AARCH64_ARCH_V9A_FEATURES): Likewise. (AARCH64_ARCH_V9_1A_FEATURES): Likewise. (AARCH64_ARCH_V9_2A_FEATURES): Likewise. (AARCH64_ARCH_V9_3A_FEATURES): Likewise. (AARCH64_ARCH_V8A): Updated name: V8_A -> V8A. (AARCH64_ARCH_V8_1A): A-suffix added. (AARCH64_ARCH_V8_2A): Likewise. (AARCH64_ARCH_V8_3A): Likewise. (AARCH64_ARCH_V8_4A): Likewise. (AARCH64_ARCH_V8_5A): Likewise. (AARCH64_ARCH_V8_6A): Likewise. (AARCH64_ARCH_V8_7A): Likewise. (AARCH64_ARCH_V8_8A): Likewise. (AARCH64_ARCH_V9A): Likewise. (AARCH64_ARCH_V9_1A): Likewise. (AARCH64_ARCH_V9_2A): Likewise. (AARCH64_ARCH_V9_3A): Likewise. (AARCH64_ARCH_V8_R): Updated name: V8_R -> V8R. opcodes/ChangeLog: * opcodes/aarch64-opc.c (SR_V8A): Updated name: V8_A -> V8A. (SR_V8_1A): A-suffix added. (SR_V8_2A): Likewise. (SR_V8_3A): Likewise. (SR_V8_4A): Likewise. (SR_V8_6A): Likewise. (SR_V8_7A): Likewise. (SR_V8_8A): Likewise. (aarch64_sys_regs): Reference to arch feature macros updated. (aarch64_pstatefields): Reference to arch feature macros updated. (aarch64_sys_ins_reg_supported_p): Reference to arch feature macros updated. * opcodes/aarch64-tbl.h: (aarch64_feature_v8_2a): a-suffix added. (aarch64_feature_v8_3a): Likewise. (aarch64_feature_fp_v8_3a): Likewise. (aarch64_feature_v8_4a): Likewise. (aarch64_feature_fp_16_v8_2a): Likewise. (aarch64_feature_v8_5a): Likewise. (aarch64_feature_v8_6a): Likewise. (aarch64_feature_v8_7a): Likewise. (aarch64_feature_v8r): Updated name: v8_r-> v8r. (ARMV8R): Updated name: V8_R-> V8R. (ARMV8_2A): A-suffix added. (ARMV8_3A): Likewise. (FP_V8_3A): Likewise. (ARMV8_4A): Likewise. (FP_F16_V8_2A): Likewise. (ARMV8_5): Likewise. (ARMV8_6A): Likewise. (ARMV8_6A_SVE): Likewise. (ARMV8_7A): Likewise. (V8_2A_INSN): `A' added to macro symbol. (V8_3A_INSN): Likewise. (V8_4A_INSN): Likewise. (FP16_V8_2A_INSN): Likewise. (V8_5A_INSN): Likewise. (V8_6A_INSN): Likewise. (V8_7A_INSN): Likewise. (V8R_INSN): Updated name: V8_R-> V8R.