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| author | Palmer Dabbelt <palmer@rivosinc.com> | 2022-11-08 19:00:36 -0800 |
|---|---|---|
| committer | Kito Cheng <kito.cheng@sifive.com> | 2024-01-19 16:02:51 +0800 |
| commit | 730a801f950e7817696067906cf40d590688387a (patch) | |
| tree | 3485e77c31e8d8e368d6b8a643e53cdd516d0c60 /gcc | |
| parent | 5a22bb250d8f4ad239e12fea9828c18a0aa23e38 (diff) | |
| download | gcc-730a801f950e7817696067906cf40d590688387a.zip gcc-730a801f950e7817696067906cf40d590688387a.tar.gz gcc-730a801f950e7817696067906cf40d590688387a.tar.bz2 | |
RISC-V: Add the Zihpm and Zicntr extensions
These extensions were recently frozen [1]. As per Andrew's post [2]
we're meant to ignore these in software, this just adds them to the list
of allowed extensions and otherwise ignores them. I added these under
SPEC_CLASS_NONE even though the PDF lists them as 20190614 because it
seems pointless to add another spec class just to accept two extensions
we then ignore.
1: https://groups.google.com/a/groups.riscv.org/g/isa-dev/c/HZGoqP1eyps/m/GTNKRLJoAQAJ
2: https://groups.google.com/a/groups.riscv.org/g/sw-dev/c/QKjQhChrq9Q/m/7gqdkctgAgAJ
gcc/ChangeLog
* common/config/riscv/riscv-common.cc: Add Zihpm and Zicnttr
extensions.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/common/config/riscv/riscv-common.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/common/config/riscv/riscv-common.cc b/gcc/common/config/riscv/riscv-common.cc index 958a692..4da7f37 100644 --- a/gcc/common/config/riscv/riscv-common.cc +++ b/gcc/common/config/riscv/riscv-common.cc @@ -279,6 +279,9 @@ static const struct riscv_ext_version riscv_ext_version_table[] = {"zicbom",ISA_SPEC_CLASS_NONE, 1, 0}, {"zicbop",ISA_SPEC_CLASS_NONE, 1, 0}, + {"zicntr", ISA_SPEC_CLASS_NONE, 2, 0}, + {"zihpm", ISA_SPEC_CLASS_NONE, 2, 0}, + {"zk", ISA_SPEC_CLASS_NONE, 1, 0}, {"zkn", ISA_SPEC_CLASS_NONE, 1, 0}, {"zks", ISA_SPEC_CLASS_NONE, 1, 0}, |