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[PATCH v2 1/1] RISC-V: Add `OP_V' to .insn named opcodes

Kito Cheng kito.cheng@gmail.com
Thu Jul 28 13:29:44 GMT 2022 
LGTM

On Thu, Jul 28, 2022 at 9:03 PM Tsukasa OI via Binutils
<binutils@sourceware.org> wrote:
>
> This commit adds `OP_V' (OP-V: vector instruction opcode for now
> ratified `V' extension) to .insn opcode name list.  Although vector
> instruction encoding is not implemented in `.insn' directive, it will
> help future implementation of custom vector `.insn'.
>
> gas/ChangeLog:
>
>         * config/tc-riscv.c (opcode_name_list): Add `OP_V'.
>         * testsuite/gas/riscv/insn.s: Add testcase.
>         * testsuite/gas/riscv/insn.d: Likewise.
>         * testsuite/gas/riscv/insn-dwarf.d: Reflect insn.s update.
> ---
>  gas/config/tc-riscv.c                |  2 +-
>  gas/testsuite/gas/riscv/insn-dwarf.d | 17 +++++++++--------
>  gas/testsuite/gas/riscv/insn.d       |  3 ++-
>  gas/testsuite/gas/riscv/insn.s       |  2 ++
>  4 files changed, 14 insertions(+), 10 deletions(-)
>
> diff --git a/gas/config/tc-riscv.c b/gas/config/tc-riscv.c
> index 291d07f6d8f..ecdffbef589 100644
> --- a/gas/config/tc-riscv.c
> +++ b/gas/config/tc-riscv.c
> @@ -749,7 +749,7 @@ static const struct opcode_name_t opcode_name_list[] =
>    {"NMADD",     0x4f},
>    {"NMSUB",     0x4b},
>    {"OP_FP",     0x53},
> -  /*reserved    0x57.  */
> +  {"OP_V",      0x57},
>    {"CUSTOM_2",  0x5b},
>    /* 48b        0x5f.  */
>
> diff --git a/gas/testsuite/gas/riscv/insn-dwarf.d b/gas/testsuite/gas/riscv/insn-dwarf.d
> index 72d54d47acf..a975b1464c0 100644
> --- a/gas/testsuite/gas/riscv/insn-dwarf.d
> +++ b/gas/testsuite/gas/riscv/insn-dwarf.d
> @@ -60,12 +60,13 @@ insn.s +53 +0x9a.*
>  insn.s +54 +0x9e.*
>  insn.s +55 +0xa2.*
>  insn.s +57 +0xa6.*
> -insn.s +58 +0xa8.*
> -insn.s +59 +0xac.*
> -insn.s +60 +0xb2.*
> -insn.s +61 +0xba.*
> -insn.s +62 +0xbc.*
> -insn.s +63 +0xc0.*
> -insn.s +64 +0xc6.*
> -insn.s +- +0xce
> +insn.s +59 +0xaa.*
> +insn.s +60 +0xac.*
> +insn.s +61 +0xb0.*
> +insn.s +62 +0xb6.*
> +insn.s +63 +0xbe.*
> +insn.s +64 +0xc0.*
> +insn.s +65 +0xc4.*
> +insn.s +66 +0xca.*
> +insn.s +- +0xd2
>  #pass
> diff --git a/gas/testsuite/gas/riscv/insn.d b/gas/testsuite/gas/riscv/insn.d
> index b5780f42861..d177f313d23 100644
> --- a/gas/testsuite/gas/riscv/insn.d
> +++ b/gas/testsuite/gas/riscv/insn.d
> @@ -1,4 +1,4 @@
> -#as: -march=rv32ifc
> +#as: -march=rv32ifdcv
>  #objdump: -dr
>
>  .*:[   ]+file format .*
> @@ -69,6 +69,7 @@ Disassembly of section .text:
>  [^:]+:[        ]+00c58533[     ]+add[  ]+a0,a1,a2
>  [^:]+:[        ]+00c58533[     ]+add[  ]+a0,a1,a2
>  [^:]+:[        ]+00c58533[     ]+add[  ]+a0,a1,a2
> +[^:]+:[        ]+022180d7[     ]+vadd\.vv[     ]+v1,v2,v3
>  [^:]+:[        ]+0001[         ]+nop
>  [^:]+:[        ]+00000013[     ]+nop
>  [^:]+:[        ]+001f 0000 0000[       ].*
> diff --git a/gas/testsuite/gas/riscv/insn.s b/gas/testsuite/gas/riscv/insn.s
> index ec41acb30bd..993615eb747 100644
> --- a/gas/testsuite/gas/riscv/insn.s
> +++ b/gas/testsuite/gas/riscv/insn.s
> @@ -54,6 +54,8 @@ target:
>         .insn r  0x33,  0,  0, a0, fa1, fa2
>         .insn r  0x33,  0,  0, fa0, fa1, fa2
>
> +       .insn r  OP_V, 0, 1, x1, x3, x2
> +
>         .insn 0x0001
>         .insn 0x00000013
>         .insn 0x0000001f
> --
> 2.34.1
>
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