diff options
| author | Richard Henderson | 2021-01-13 07:26:48 +0100 |
|---|---|---|
| committer | Peter Maydell | 2021-01-19 15:38:52 +0100 |
| commit | 86300b5d044064046395ae8ed605cc19e63f2a7c (patch) | |
| tree | 8d33bff0ba63fdc42ed0d0906797692d2f2327c5 | |
| parent | target/arm: Introduce PREDDESC field definitions (diff) | |
| download | qemu-86300b5d044064046395ae8ed605cc19e63f2a7c.tar.gz qemu-86300b5d044064046395ae8ed605cc19e63f2a7c.tar.xz qemu-86300b5d044064046395ae8ed605cc19e63f2a7c.zip | |
target/arm: Update PFIRST, PNEXT for pred_desc
These two were odd, in that do_pfirst_pnext passed the
count of 64-bit words rather than bytes. Change to pass
the standard pred_full_reg_size to avoid confusion.
Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210113062650.593824-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | target/arm/sve_helper.c | 7 | ||||
| -rw-r--r-- | target/arm/translate-sve.c | 6 |
2 files changed, 7 insertions, 6 deletions
diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c index 5f037c3a8f..ff01851bf2 100644 --- a/target/arm/sve_helper.c +++ b/target/arm/sve_helper.c @@ -889,8 +889,9 @@ static intptr_t last_active_element(uint64_t *g, intptr_t words, intptr_t esz) return (intptr_t)-1 << esz; } -uint32_t HELPER(sve_pfirst)(void *vd, void *vg, uint32_t words) +uint32_t HELPER(sve_pfirst)(void *vd, void *vg, uint32_t pred_desc) { + intptr_t words = DIV_ROUND_UP(FIELD_EX32(pred_desc, PREDDESC, OPRSZ), 8); uint32_t flags = PREDTEST_INIT; uint64_t *d = vd, *g = vg; intptr_t i = 0; @@ -914,8 +915,8 @@ uint32_t HELPER(sve_pfirst)(void *vd, void *vg, uint32_t words) uint32_t HELPER(sve_pnext)(void *vd, void *vg, uint32_t pred_desc) { - intptr_t words = extract32(pred_desc, 0, SIMD_OPRSZ_BITS); - intptr_t esz = extract32(pred_desc, SIMD_DATA_SHIFT, 2); + intptr_t words = DIV_ROUND_UP(FIELD_EX32(pred_desc, PREDDESC, OPRSZ), 8); + intptr_t esz = FIELD_EX32(pred_desc, PREDDESC, ESZ); uint32_t flags = PREDTEST_INIT; uint64_t *d = vd, *g = vg, esz_mask; intptr_t i, next; diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c index 0c3a6d2121..efcb646f72 100644 --- a/target/arm/translate-sve.c +++ b/target/arm/translate-sve.c @@ -1494,10 +1494,10 @@ static bool do_pfirst_pnext(DisasContext *s, arg_rr_esz *a, TCGv_ptr t_pd = tcg_temp_new_ptr(); TCGv_ptr t_pg = tcg_temp_new_ptr(); TCGv_i32 t; - unsigned desc; + unsigned desc = 0; - desc = DIV_ROUND_UP(pred_full_reg_size(s), 8); - desc = deposit32(desc, SIMD_DATA_SHIFT, 2, a->esz); + desc = FIELD_DP32(desc, PREDDESC, OPRSZ, pred_full_reg_size(s)); + desc = FIELD_DP32(desc, PREDDESC, ESZ, a->esz); tcg_gen_addi_ptr(t_pd, cpu_env, pred_full_reg_offset(s, a->rd)); tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, a->rn)); |