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| author | Richard Henderson <richard.henderson@linaro.org> | 2018-06-29 15:11:08 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-06-29 15:11:08 +0100 |
| commit | ca40a6e6e390eb1cad7ade881dc7c622793f9324 (patch) | |
| tree | d76a1f86086e3457820f55efde2a00b2c4b7f983 /target/arm/vec_helper.c | |
| parent | cc48affe83fff4b2886c064265d7103dee5e4a14 (diff) | |
| download | qemu-ca40a6e6e390eb1cad7ade881dc7c622793f9324.zip qemu-ca40a6e6e390eb1cad7ade881dc7c622793f9324.tar.gz qemu-ca40a6e6e390eb1cad7ade881dc7c622793f9324.tar.bz2 | |
target/arm: Implement SVE Floating Point Multiply Indexed Group
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180627043328.11531-19-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/vec_helper.c')
| -rw-r--r-- | target/arm/vec_helper.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c index f504dd5..97af75a 100644 --- a/target/arm/vec_helper.c +++ b/target/arm/vec_helper.c @@ -495,3 +495,51 @@ DO_3OP(gvec_rsqrts_d, helper_rsqrtsf_f64, float64) #endif #undef DO_3OP + +/* For the indexed ops, SVE applies the index per 128-bit vector segment. + * For AdvSIMD, there is of course only one such vector segment. + */ + +#define DO_MUL_IDX(NAME, TYPE, H) \ +void HELPER(NAME)(void *vd, void *vn, void *vm, void *stat, uint32_t desc) \ +{ \ + intptr_t i, j, oprsz = simd_oprsz(desc), segment = 16 / sizeof(TYPE); \ + intptr_t idx = simd_data(desc); \ + TYPE *d = vd, *n = vn, *m = vm; \ + for (i = 0; i < oprsz / sizeof(TYPE); i += segment) { \ + TYPE mm = m[H(i + idx)]; \ + for (j = 0; j < segment; j++) { \ + d[i + j] = TYPE##_mul(n[i + j], mm, stat); \ + } \ + } \ +} + +DO_MUL_IDX(gvec_fmul_idx_h, float16, H2) +DO_MUL_IDX(gvec_fmul_idx_s, float32, H4) +DO_MUL_IDX(gvec_fmul_idx_d, float64, ) + +#undef DO_MUL_IDX + +#define DO_FMLA_IDX(NAME, TYPE, H) \ +void HELPER(NAME)(void *vd, void *vn, void *vm, void *va, \ + void *stat, uint32_t desc) \ +{ \ + intptr_t i, j, oprsz = simd_oprsz(desc), segment = 16 / sizeof(TYPE); \ + TYPE op1_neg = extract32(desc, SIMD_DATA_SHIFT, 1); \ + intptr_t idx = desc >> (SIMD_DATA_SHIFT + 1); \ + TYPE *d = vd, *n = vn, *m = vm, *a = va; \ + op1_neg <<= (8 * sizeof(TYPE) - 1); \ + for (i = 0; i < oprsz / sizeof(TYPE); i += segment) { \ + TYPE mm = m[H(i + idx)]; \ + for (j = 0; j < segment; j++) { \ + d[i + j] = TYPE##_muladd(n[i + j] ^ op1_neg, \ + mm, a[i + j], 0, stat); \ + } \ + } \ +} + +DO_FMLA_IDX(gvec_fmla_idx_h, float16, H2) +DO_FMLA_IDX(gvec_fmla_idx_s, float32, H4) +DO_FMLA_IDX(gvec_fmla_idx_d, float64, ) + +#undef DO_FMLA_IDX |