[Bug target/112537] Is there a way to disable cpymem pass for rvv

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112537

--- Comment #14 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Li Xu <xuli@gcc.gnu.org>:

https://gcc.gnu.org/g:e6269bb69c0734a5af716bfbded3621de6ca351d

commit r14-5602-ge6269bb69c0734a5af716bfbded3621de6ca351d
Author: xuli <xuli1@eswincomputing.com>
Date:   Fri Nov 17 04:48:47 2023 +0000

    RISC-V: Implement -mmemcpy-strategy= options[PR112537]

    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112537

    -mmemcpy-strategy=[auto|libcall|scalar|vector]

    auto: Current status, use scalar or vector instructions.
    libcall: Always use a library call.
    scalar: Only use scalar instructions.
    vector: Only use vector instructions.

            PR target/112537

    gcc/ChangeLog:

            * config/riscv/riscv-opts.h (enum riscv_stringop_strategy_enum):
Strategy enum.
            * config/riscv/riscv-string.cc (riscv_expand_block_move): Disabled
based on options.
            (expand_block_move): Ditto.
            * config/riscv/riscv.opt: Add -mmemcpy-strategy=.

    gcc/testsuite/ChangeLog:

            * gcc.target/riscv/rvv/base/cpymem-strategy-1.c: New test.
            * gcc.target/riscv/rvv/base/cpymem-strategy-2.c: New test.
            * gcc.target/riscv/rvv/base/cpymem-strategy-3.c: New test.
            * gcc.target/riscv/rvv/base/cpymem-strategy-4.c: New test.
            * gcc.target/riscv/rvv/base/cpymem-strategy-5.c: New test.
            * gcc.target/riscv/rvv/base/cpymem-strategy.h: New test.