diff options
| author | Jiawei <jiawei@iscas.ac.cn> | 2024-10-29 20:44:23 +0800 |
|---|---|---|
| committer | Nelson Chu <nelson@rivosinc.com> | 2024-11-20 08:26:39 +0800 |
| commit | 00ef37e860d505f41a621708c62f3e9363868ee1 (patch) | |
| tree | c1210ebdd5b9571b0f61938eab2b4c6c5a72b649 /bfd/elfxx-riscv.c | |
| parent | 46e64f7387263d6f1b1ebe88e99371496bd79f3b (diff) | |
| download | gdb-00ef37e860d505f41a621708c62f3e9363868ee1.zip gdb-00ef37e860d505f41a621708c62f3e9363868ee1.tar.gz gdb-00ef37e860d505f41a621708c62f3e9363868ee1.tar.bz2 | |
RISC-V: Add Zcmt instructions and csr.
This patch supports Zcmt[1] instruction 'cm.jt' and 'cm.jalt'.
Add new CSR jvt for tablejump using. Since 'cm.jt' and 'cm.jalt'
have the same instructiong encoding, use 'match_cm_jt' and 'match_cm_jalt'
check the 'zcmt_index' field to distinguish them.
[1] https://github.com/riscvarchive/riscv-code-size-reduction/releases
Co-Authored by: Charlie Keaney <charlie.keaney@embecosm.com>
Co-Authored by: Mary Bennett <mary.bennett@embecosm.com>
Co-Authored by: Nandni Jamnadas <nandni.jamnadas@embecosm.com>
Co-Authored by: Sinan Lin <sinan.lin@linux.alibaba.com>
Co-Authored by: Simon Cook <simon.cook@embecosm.com>
Co-Authored by: Shihua Liao <shihua@iscas.ac.cn>
Co-Authored by: Yulong Shi <yulong@iscas.ac.cn>
bfd/ChangeLog:
* elfxx-riscv.c (riscv_multi_subset_supports): New extension.
(riscv_multi_subset_supports_ext): Ditto.
gas/ChangeLog:
* config/tc-riscv.c (enum riscv_csr_class): New CSR.
(riscv_csr_address): Ditto.
(validate_riscv_insn): New operand.
(riscv_ip): Ditto.
* testsuite/gas/riscv/csr-version-1p10.d: New CSR.
* testsuite/gas/riscv/csr-version-1p10.l: Ditto.
* testsuite/gas/riscv/csr-version-1p11.d: Ditto.
* testsuite/gas/riscv/csr-version-1p11.l: Ditto.
* testsuite/gas/riscv/csr-version-1p12.d: Ditto.
* testsuite/gas/riscv/csr-version-1p12.l: Ditto.
* testsuite/gas/riscv/csr.s: Ditto.
* testsuite/gas/riscv/march-help.l: New extension.
* testsuite/gas/riscv/zcmt-fail.d: New test.
* testsuite/gas/riscv/zcmt-fail.l: New test.
* testsuite/gas/riscv/zcmt-fail.s: New test.
* testsuite/gas/riscv/zcmt.d: New test.
* testsuite/gas/riscv/zcmt.s: New test.
include/ChangeLog:
* opcode/riscv-opc.h (MATCH_CM_JT): New opcode.
(MASK_CM_JT): New mask.
(MATCH_CM_JALT): New opcode.
(MASK_CM_JALT): New mask.
(CSR_JVT): New CSR.
(DECLARE_INSN): New declaration.
(DECLARE_CSR): Ditto.
* opcode/riscv.h (EXTRACT_ZCMT_INDEX): New marco.
(ENCODE_ZCMT_INDEX): Ditto.
(enum riscv_insn_class): New class.
opcodes/ChangeLog:
* riscv-dis.c (print_insn_args): New operand.
* riscv-opc.c (match_cm_jt): New function.
(match_cm_jalt): Ditto.
Diffstat (limited to 'bfd/elfxx-riscv.c')
| -rw-r--r-- | bfd/elfxx-riscv.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/bfd/elfxx-riscv.c b/bfd/elfxx-riscv.c index 4b48d8e..701c724 100644 --- a/bfd/elfxx-riscv.c +++ b/bfd/elfxx-riscv.c @@ -1214,6 +1214,7 @@ static struct riscv_implicit_subset riscv_implicit_subsets[] = {"zcf", "+f,+zca", check_implicit_always}, {"zcmp", "+zca", check_implicit_always}, {"zcmop", "+zca", check_implicit_always}, + {"zcmt", "+zca,+zicsr", check_implicit_always}, {"shcounterenw", "+h", check_implicit_always}, {"shgatpa", "+h", check_implicit_always}, @@ -1424,6 +1425,7 @@ static struct riscv_supported_ext riscv_supported_std_z_ext[] = {"zcd", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, {"zcmop", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, {"zcmp", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, + {"zcmt", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, {NULL, 0, 0, 0, 0} }; @@ -2720,6 +2722,8 @@ riscv_multi_subset_supports (riscv_parse_subset_t *rps, return riscv_subset_supports (rps, "zcmop"); case INSN_CLASS_ZCMP: return riscv_subset_supports (rps, "zcmp"); + case INSN_CLASS_ZCMT: + return riscv_subset_supports (rps, "zcmt"); case INSN_CLASS_SVINVAL: return riscv_subset_supports (rps, "svinval"); case INSN_CLASS_H: @@ -3002,6 +3006,8 @@ riscv_multi_subset_supports_ext (riscv_parse_subset_t *rps, return "zcmop"; case INSN_CLASS_ZCMP: return "zcmp"; + case INSN_CLASS_ZCMT: + return "zcmt"; case INSN_CLASS_SVINVAL: return "svinval"; case INSN_CLASS_H: |