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Adds tail undisturbed for RVV Level 1 operations

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During the last iteration of some RVV operations, accumulators can get overwritten when VL < VLMAX and tail policy is agnostic.
Commit changes intrinsics tail policy to undistrubed.
This commit is contained in:
Octavian Maghiar
2023-07-20 15:28:35 +01:00
parent 1e4a3a2b5e
commit 8df0289db6
20 changed files with 168 additions and 168 deletions
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8
kernel/riscv64/sum_rvv.c
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@@ -36,7 +36,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#define VLEV_FLOAT __riscv_vle32_v_f32m8
#define VLSEV_FLOAT __riscv_vlse32_v_f32m8
#define VFMVVF_FLOAT __riscv_vfmv_v_f_f32m8
#define VFADDVV_FLOAT __riscv_vfadd_vv_f32m8
#define VFADDVV_FLOAT_TU __riscv_vfadd_vv_f32m8_tu
#define VFREDSUMVS_FLOAT __riscv_vfredusum_vs_f32m8_f32m1
#define VFMVVF_FLOAT_M1 __riscv_vfmv_v_f_f32m1
#define VFMVFS_FLOAT_M1 __riscv_vfmv_f_s_f32m1_f32
@@ -49,7 +49,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#define VLEV_FLOAT __riscv_vle64_v_f64m8
#define VLSEV_FLOAT __riscv_vlse64_v_f64m8
#define VFMVVF_FLOAT __riscv_vfmv_v_f_f64m8
#define VFADDVV_FLOAT __riscv_vfadd_vv_f64m8
#define VFADDVV_FLOAT_TU __riscv_vfadd_vv_f64m8_tu
#define VFREDSUMVS_FLOAT __riscv_vfredusum_vs_f64m8_f64m1
#define VFMVVF_FLOAT_M1 __riscv_vfmv_v_f_f64m1
#define VFMVFS_FLOAT_M1 __riscv_vfmv_f_s_f64m1_f64
@@ -73,7 +73,7 @@ FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
vl = VSETVL(n);
vx = VLEV_FLOAT(x, vl);
vsum = VFADDVV_FLOAT(vsum, vx, vl);
vsum = VFADDVV_FLOAT_TU(vsum, vsum, vx, vl);
}
} else {
@@ -84,7 +84,7 @@ FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
vl = VSETVL(n);
vx = VLSEV_FLOAT(x, stride_x, vl);
vsum = VFADDVV_FLOAT(vsum, vx, vl);
vsum = VFADDVV_FLOAT_TU(vsum, vsum, vx, vl);
}
}