[PATCH, BINUTILS, AArch64, 1/3] Remove ldgv and stgv instructions from Armv8.5-A Memory Tagging Extension.

[Kyrill Tkachov]

Hi

This patch is part of a series of patches to introduce a few changes to the
Armv8.5-A Memory Tagging Extension. This patch removes the LDGV and STGV
instructions. These instructions needed special infrastructure to support
[base]! style for addressing mode. That is also removed now.

For ease of review I have not added the regenerated files in the patch. I
will add those in my final commit.

Builds and reg tests all pass on aarch64-none-elf.

Is this ok for trunk?

Thanks
Sudi

*** gas/ChangeLog ***

2019-01-25  Sudakshina Das  <sudi.das@arm.com>
         Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

     * config/tc-aarch64.c (parse_address_main): Remove support for
     [base]! address expression.
     (parse_operands): Remove support for AARCH64_OPND_ADDR_SIMPLE_2.
     (warn_unpredictable_ldst): Remove support for ldstgv_indexed.
     * testsuite/gas/aarch64/armv8_5-a-memtag.d: Remove tests for ldgv
     and stgv.
     * testsuite/gas/aarch64/armv8_5-a-memtag.s: Likewise.
     * testsuite/gas/aarch64/illegal-memtag.l: Likewise.
     * testsuite/gas/aarch64/illegal-memtag.s: Likewise.

*** include/ChangeLog ***

2019-01-25  Sudakshina Das  <sudi.das@arm.com>
         Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

     * opcode/aarch64.h (enum aarch64_opnd): Remove
     AARCH64_OPND_ADDR_SIMPLE_2.
     (enum aarch64_insn_class): Remove ldstgv_indexed.

*** opcodes/ChangeLog ***

2019-01-25  Sudakshina Das  <sudi.das@arm.com>
         Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

     * aarch64-asm.c (aarch64_ins_addr_simple_2): Remove.
     * aarch64-asm.h (ins_addr_simple_2): Likeiwse.
     * aarch64-dis.c (aarch64_ext_addr_simple_2): Likewise.
     * aarch64-dis.h (ext_addr_simple_2): Likewise.
     * aarch64-opc.c (operand_general_constraint_met_p): Remove
     case for ldstgv_indexed.
     (aarch64_print_operand): Remove case for AARCH64_OPND_ADDR_SIMPLE_2.
     * aarch64-tbl.h (struct aarch64_opcode): Remove ldgv and stgv.
     (AARCH64_OPERANDS): Remove ADDR_SIMPLE_2.
     * aarch64-asm-2.c: Regenerated.
     * aarch64-dis-2.c: Regenerated.
     * aarch64-opc-2.c: Regenerated.
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