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| author | Richard Sandiford <richard.sandiford@arm.com> | 2021-12-02 15:00:56 +0000 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2021-12-02 15:00:56 +0000 |
| commit | b3e59f8873b9f07e84b19a19d40810f9a61b6d62 (patch) | |
| tree | 50f74009c8830755ab4abcd476faad6584b49cd1 /include | |
| parent | f96093c1f53bf4a930073f6ae862910583d79866 (diff) | |
| download | gdb-b3e59f8873b9f07e84b19a19d40810f9a61b6d62.zip gdb-b3e59f8873b9f07e84b19a19d40810f9a61b6d62.tar.gz gdb-b3e59f8873b9f07e84b19a19d40810f9a61b6d62.tar.bz2 | |
aarch64: Tweak insn sequence code
libopcodes has some code to check constraints across sequences
of consecutive instructions. It was added to support MOVPRFX
sequences but is going to be useful for the Armv8.8-A MOPS
feature as well.
Currently the structure has one field to record the instruction
that started a sequence and another to record the remaining
instructions in the sequence. It's more convenient for the
MOPS code if we put the instructions into a single array instead.
No functional change intended.
include/
* opcode/aarch64.h (aarch64_instr_sequence): Replace num_insns
and current_insns with num_added_insns and num_allocated_insns.
opcodes/
* aarch64-opc.c (add_insn_to_sequence): New function.
(init_insn_sequence): Update for new aarch64_instr_sequence layout.
Add the first instruction to the inst array.
(verify_constraints): Update for new aarch64_instr_sequence layout.
Don't add the last instruction to the array.
Diffstat (limited to 'include')
| -rw-r--r-- | include/opcode/aarch64.h | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h index 9448d35..fa79aa9 100644 --- a/include/opcode/aarch64.h +++ b/include/opcode/aarch64.h @@ -1290,15 +1290,13 @@ struct aarch64_operand_error dependencies for both assembler and disassembler. */ struct aarch64_instr_sequence { - /* The instruction that caused this sequence to be opened. */ + /* The instructions in the sequence, starting with the one that + caused it to be opened. */ aarch64_inst *instr; - /* The number of instructions the above instruction allows one to be kept in the - sequence before an automatic close is done. */ - int num_insns; - /* The instructions currently added to the sequence. */ - aarch64_inst **current_insns; /* The number of instructions already in the sequence. */ - int next_insn; + int num_added_insns; + /* The number of instructions allocated to the sequence. */ + int num_allocated_insns; }; /* Encoding entrypoint. */ |