[Bug target/113112] RISC-V: Dynamic LMUL feature stabilization for GCC-14 release

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113112

--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Pan Li <pa...@gcc.gnu.org>:

https://gcc.gnu.org/g:f83cfb8148bcf0876df76761a9a4545bc939667d

commit r14-6836-gf83cfb8148bcf0876df76761a9a4545bc939667d
Author: Juzhe-Zhong <juzhe.zh...@rivai.ai>
Date:   Tue Dec 26 16:42:27 2023 +0800

    RISC-V: Some minior tweak on dynamic LMUL cost model

    Tweak some codes of dynamic LMUL cost model to make computation more
predictable and accurate.

    Tested on both RV32 and RV64 no regression.

    Committed.

            PR target/113112

    gcc/ChangeLog:

            * config/riscv/riscv-vector-costs.cc (compute_estimated_lmul):
Tweak LMUL estimation.
            (has_unexpected_spills_p): Ditto.
            (costs::record_potential_unexpected_spills): Ditto.

    gcc/testsuite/ChangeLog:

            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul1-1.c: Add more
checks.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul1-2.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul1-3.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul1-4.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul1-5.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul1-6.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul1-7.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul2-1.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul2-2.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul2-3.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul2-4.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul2-5.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul4-1.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul4-2.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul4-3.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul4-5.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul4-6.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul4-7.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul4-8.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-1.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-10.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-11.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-2.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-3.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-4.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-5.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-6.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-7.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-8.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-9.c: Ditto.
            * gcc.dg/vect/costmodel/riscv/rvv/dynamic-lmul8-12.c: New test.
            * gcc.dg/vect/costmodel/riscv/rvv/pr113112-2.c: New test.