Verified with qemu, committed to master, thanks!
On Thu, Oct 20, 2022 at 5:43 PM jiawei wrote:
>
> Zfinx extension[1] had already ratified. Here is the
> implementation patch set that reuse floating point pattern and ban
> the use of fpr when use z*inx as a target.
>
> Current works can be find in follow links, binutils and simulator
> works already supported on upstream.
> https://github.com/pz9115/riscv-gcc/tree/zfinx-rebase
>
> Thanks for Tariq Kurd, Kito Cheng, Jim Willson,
> Jeremy Bennett helped us a lot with this work.
>
> [1] https://github.com/riscv/riscv-zfinx/blob/main/zfinx-1.0.0-rc.pdf
>
> Version log:
>
> v2: As Kito Cheng's comment, add Changelog part in patches, update imply
> info in riscv-common.c, remove useless check and update annotation in
> riscv.c.
>
> v3: Update with new isa-spec version 20191213, make zfinx imply zicsr as
> default, fix the lack of fcsr use in zfinx.
>
> v4: Rebase patch with upstream, add zhinx/zhinxmin extensions support.
> Add additional zhinx/zhinxmin same like zfh/zfhmin.
>
> Jiawei (4):
> RISC-V: Minimal support of z*inx extension.
> RISC-V: Target support for z*inx extension.
> RISC-V: Limit regs use for z*inx extension.
> RISC-V: Add zhinx/zhinxmin testcases.
>
> gcc/common/config/riscv/riscv-common.cc | 18 +
> gcc/config/riscv/arch-canonicalize| 5 ++
> gcc/config/riscv/constraints.md | 5 +-
> gcc/config/riscv/iterators.md | 6 +-
> gcc/config/riscv/riscv-builtins.cc| 4 +-
> gcc/config/riscv/riscv-c.cc | 2 +-
> gcc/config/riscv/riscv-opts.h | 10 +++
> gcc/config/riscv/riscv.cc | 21 -
> gcc/config/riscv/riscv.md | 78 ++-
> gcc/config/riscv/riscv.opt| 3 +
> .../gcc.target/riscv/_Float16-zhinx-1.c | 10 +++
> .../gcc.target/riscv/_Float16-zhinx-2.c | 9 +++
> .../gcc.target/riscv/_Float16-zhinx-3.c | 9 +++
> .../gcc.target/riscv/_Float16-zhinxmin-1.c| 10 +++
> .../gcc.target/riscv/_Float16-zhinxmin-2.c| 10 +++
> .../gcc.target/riscv/_Float16-zhinxmin-3.c| 10 +++
> 16 files changed, 160 insertions(+), 50 deletions(-)
> create mode 100644 gcc/testsuite/gcc.target/riscv/_Float16-zhinx-1.c
> create mode 100644 gcc/testsuite/gcc.target/riscv/_Float16-zhinx-2.c
> create mode 100644 gcc/testsuite/gcc.target/riscv/_Float16-zhinx-3.c
> create mode 100644 gcc/testsuite/gcc.target/riscv/_Float16-zhinxmin-1.c
> create mode 100644 gcc/testsuite/gcc.target/riscv/_Float16-zhinxmin-2.c
> create mode 100644 gcc/testsuite/gcc.target/riscv/_Float16-zhinxmin-3.c
>
> --
> 2.25.1
>
