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Hi This patch adds the following speculation barrier instructions to the AArch64 assembler and disassembler as given in: https://static.docs.arm.com/ddi0596/a/DDI_0596_ARM_a64_instruction_set_architecture.pdf SSBB PSSBB These are added retrospectively to all older architectures, and thus have been added as CORE_INSN. Testing done: Builds and reg tests all pass on aarch64-none-linux-gnu. Updated test to check. Is this ok for trunk? I do not have commit rights. If this seems ok can someone commit it on my behalf. Thanks Sudi *** opcodes/ChangeLog *** 2018-xx-xx Sudakshina Das <sudi.das@arm.com> * aarch64-tbl.h (aarch64_opcode_table): Add entry for ssbb and pssbb and update dsb flags to F_HAS_ALIAS. * aarch64-asm-2.c: Regenerate. * aarch64-dis-2.c: Regenerate. * aarch64-opc-2.c: Regenerate. *** gas/ChangeLog *** 2018-xx-xx Sudakshina Das <sudi.das@arm.com> * testsuite/gas/aarch64/system.s: Add test for ssbb and pssbb. * testsuite/gas/aarch64/system.d: Update accordingly and remove explicit addresses.
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