FreeChainXenon/binutils-gdb
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

RISC-V: Add mininal support for z[fdq]inx

Browse source 
Minimal support for zfinx, zdinx, zqinx. Like f/d/q, the zqinx
imply zdinx and zdinx imply zfinx, where zfinx are not compatible
with f/d/q.

bfd/ChangeLog:

* elfxx-riscv.c (riscv_implicit_subsets): Added implicit rules
for z*inx extensions.
(riscv_supported_std_z_ext): Added entries for z*inx.
(riscv_parse_check_conflicts): Added conflict check for z*inx.

Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
jiawei 2021-11-17 20:10:06 +08:00 • committed by Nelson Chu
parent bd97e65f87
commit da05b70e56
1 changed files with 12 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
bfd/elfxx-riscv.c
View file

@ -1100,6 +1100,8 @@ static struct riscv_implicit_subset riscv_implicit_subsets[] =
{"zvl64b", "zvl32b", check_implicit_always},
{"d", "f", check_implicit_always},
{"f", "zicsr", check_implicit_always},
{"zqinx", "zdinx", check_implicit_always},
{"zdinx", "zfinx", check_implicit_always},
{"zk", "zkn", check_implicit_always},
{"zk", "zkr", check_implicit_always},
{"zk", "zkt", check_implicit_always},
@ -1182,6 +1184,9 @@ static struct riscv_supported_ext riscv_supported_std_z_ext[] =
{"zifencei", ISA_SPEC_CLASS_20191213, 2, 0, 0 },
{"zifencei", ISA_SPEC_CLASS_20190608, 2, 0, 0 },
{"zihintpause", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"zfinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"zdinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"zqinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"zbb", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"zba", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"zbc", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
@ -1897,6 +1902,13 @@ riscv_parse_check_conflicts (riscv_parse_subset_t *rps)
(_("rv32e does not support the `f' extension"));
no_conflict = false;
}
if (riscv_lookup_subset (rps->subset_list, "zfinx", &subset)
&& riscv_lookup_subset (rps->subset_list, "f", &subset))
{
rps->error_handler
(_("`zfinx' is conflict with the `f/d/q' extension"));
no_conflict = false;
}
bool support_zve = false;
bool support_zvl = false;