diff options
| author | Jens Remus <jremus@linux.ibm.com> | 2024-04-09 17:21:53 +0200 |
|---|---|---|
| committer | Jens Remus <jremus@linux.ibm.com> | 2024-04-09 17:21:53 +0200 |
| commit | 6f3cf71845e68409724aef1cfef3b5a44beecf53 (patch) | |
| tree | 3e5a5e54e6d899770b170d92d640ed9bd25c38f6 /opcodes | |
| parent | 676b98078f9f42cfdaaaec6605f31c5be694dffb (diff) | |
| download | binutils-6f3cf71845e68409724aef1cfef3b5a44beecf53.zip binutils-6f3cf71845e68409724aef1cfef3b5a44beecf53.tar.gz binutils-6f3cf71845e68409724aef1cfef3b5a44beecf53.tar.bz2 | |
aarch64: Treat operand "SME list of ZA tiles" as immediate (PR 31561)
The AArch64 instruction table (aarch64-tbl.h) defines the operand
"SME list of ZA tiles" (SME_list_of_64bit_tiles) as immediate. During
assembly it is correctly encoded as immediate value (imm.value) in
parse_operands. During disassembly it is first correctly decoded as
immediate value (imm.value) in aarch64_ext_imm called by
aarch64_extract_operand, but then erroneously treated as register
number (reg.regno) in aarch64_print_operand.
This resolves the assembler test case "SME extension (ZERO)" to
erroneously fail on s390. On AArch64 - being little-endian - the struct
aarch64_opnd_info union fields reg.regno and imm.value share their
least-significant bits. On s390 - being big-endian - they do not.
opcodes/
PR binutils/31561
* aarch64-opc.c: Treat operand "SME list of ZA tiles" as
immediate.
Bug: https://sourceware.org/PR31561
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Acked-by: Nick Clifton <nickc@redhat.com>
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/aarch64-opc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/opcodes/aarch64-opc.c b/opcodes/aarch64-opc.c index e88c616..4a7a6ae 100644 --- a/opcodes/aarch64-opc.c +++ b/opcodes/aarch64-opc.c @@ -4236,7 +4236,7 @@ aarch64_print_operand (char *buf, size_t size, bfd_vma pc, break; case AARCH64_OPND_SME_list_of_64bit_tiles: - print_sme_za_list (buf, size, opnd->reg.regno, styler); + print_sme_za_list (buf, size, opnd->imm.value, styler); break; case AARCH64_OPND_SME_ZA_array_off1x4: |