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| author | Paul-Antoine Arras <parras@baylibre.com> | 2025-06-04 14:51:17 +0200 |
|---|---|---|
| committer | Paul-Antoine Arras <parras@baylibre.com> | 2025-06-11 16:16:04 +0200 |
| commit | 3ada458d344b13a49183278435d372fe9c7fef4b (patch) | |
| tree | 69d52fb7c172a2ec42733fb234db3a9c617ef5e9 /libstdc++-v3/testsuite/std | |
| parent | 9ae1af9fca4b354fe0b4d10eca3424a7471cf7b6 (diff) | |
| download | gcc-3ada458d344b13a49183278435d372fe9c7fef4b.zip gcc-3ada458d344b13a49183278435d372fe9c7fef4b.tar.gz gcc-3ada458d344b13a49183278435d372fe9c7fef4b.tar.bz2 | |
RISC-V: Add patterns for vector-scalar negate-(multiply-add/sub) [PR119100]
This pattern enables the combine pass (or late-combine, depending on the case)
to merge a vec_duplicate into a (possibly negated) minus-mult RTL instruction.
Before this patch, we have two instructions, e.g.:
vfmv.v.f v6,fa0
vfnmadd.vv v2,v6,v4
After, we get only one:
vfnmadd.vf v2,fa0,v4
This also fixes a sign mistake in the handling of vfmsub.
PR target/119100
gcc/ChangeLog:
* config/riscv/autovec-opt.md (*<optab>_vf_<mode>): Only handle vfmadd
and vfmsub.
(*vfnmsub_<mode>): New pattern.
(*vfnmadd_<mode>): New pattern.
* config/riscv/riscv.cc (get_vector_binary_rtx_cost): Add cost model for
NEG and VEC_DUPLICATE.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/autovec/vx_vf/vf-1-f16.c: Add vfnmadd and
vfnmsub.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-1-f32.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-1-f64.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-2-f16.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-2-f32.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-2-f64.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-3-f16.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-3-f32.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-3-f64.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-4-f16.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-4-f32.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf-4-f64.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_mulop.h: Add support for neg
variants. Fix sign for sub.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_mulop_data.h: Add data for neg
variants. Fix data for sub.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_mulop_run.h: Rename x to f.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfmadd-run-1-f16.c: Add neg
argument.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfmadd-run-1-f32.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfmadd-run-1-f64.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfmsub-run-1-f16.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfmsub-run-1-f32.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfmsub-run-1-f64.c: Likewise.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfnmadd-run-1-f16.c: New test.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfnmadd-run-1-f32.c: New test.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfnmadd-run-1-f64.c: New test.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfnmsub-run-1-f16.c: New test.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfnmsub-run-1-f32.c: New test.
* gcc.target/riscv/rvv/autovec/vx_vf/vf_vfnmsub-run-1-f64.c: New test.
Diffstat (limited to 'libstdc++-v3/testsuite/std')
0 files changed, 0 insertions, 0 deletions