| Message ID | 20240314175704.478276-7-dbarboza@ventanamicro.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | target/riscv: vector fixes | expand |
On Fri, Mar 15, 2024 at 3:59 AM Daniel Henrique Barboza <dbarboza@ventanamicro.com> wrote: > > We're going to make changes that will required each helper to be > responsible for the 'vstart' management, i.e. we will relieve the > 'vstart < vl' assumption that helpers have today. > > Helpers are usually able to deal with vstart >= vl, i.e. doing nothing > aside from setting vstart = 0 at the end, but the tail update functions > will update the tail regardless of vstart being valid or not. Unifying > the tail update process in a single function that would handle the > vstart >= vl case isn't trivial (see [1] for more info). > > This patch takes a blunt approach: do an early exit in every single > vector helper if vstart >= vl, unless the helper is guarded with > vstart_eq_zero in the translation. For those cases the helper is ready > to deal with cases where vl might be zero, i.e. throwing exceptions > based on it like vcpop_m() and first_m(). > > Helpers that weren't changed: > > - vcpop_m(), vfirst_m(), vmsetm(), GEN_VEXT_VIOTA_M(): these are guarded > directly with vstart_eq_zero; > > - GEN_VEXT_VCOMPRESS_VM(): guarded with vcompress_vm_check() that checks > vstart_eq_zero; > > - GEN_VEXT_RED(): guarded with either reduction_check() or > reduction_widen_check(), both check vstart_eq_zero; > > - GEN_VEXT_FRED(): guarded with either freduction_check() or > freduction_widen_check(), both check vstart_eq_zero. > > Another exception is vext_ldst_whole(), who operates on effective vector > length regardless of the current settings in vtype and vl. > > [1] https://lore.kernel.org/qemu-riscv/1590234b-0291-432a-a0fa-c5a6876097bc@linux.alibaba.com/ > > Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> > Reviewed-by: Richard Henderson <richard.henderson@linaro.org> > Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Alistair > --- > target/riscv/vcrypto_helper.c | 32 ++++++++++++++++ > target/riscv/vector_helper.c | 66 +++++++++++++++++++++++++++++++++ > target/riscv/vector_internals.c | 4 ++ > target/riscv/vector_internals.h | 9 +++++ > 4 files changed, 111 insertions(+) > > diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c > index e2d719b13b..f7423df226 100644 > --- a/target/riscv/vcrypto_helper.c > +++ b/target/riscv/vcrypto_helper.c > @@ -222,6 +222,8 @@ static inline void xor_round_key(AESState *round_state, AESState *round_key) > uint32_t total_elems = vext_get_total_elems(env, desc, 4); \ > uint32_t vta = vext_vta(desc); \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { \ > AESState round_key; \ > round_key.d[0] = *((uint64_t *)vs2 + H8(i * 2 + 0)); \ > @@ -246,6 +248,8 @@ static inline void xor_round_key(AESState *round_state, AESState *round_key) > uint32_t total_elems = vext_get_total_elems(env, desc, 4); \ > uint32_t vta = vext_vta(desc); \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { \ > AESState round_key; \ > round_key.d[0] = *((uint64_t *)vs2 + H8(0)); \ > @@ -305,6 +309,8 @@ void HELPER(vaeskf1_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, > uint32_t total_elems = vext_get_total_elems(env, desc, 4); > uint32_t vta = vext_vta(desc); > > + VSTART_CHECK_EARLY_EXIT(env); > + > uimm &= 0b1111; > if (uimm > 10 || uimm == 0) { > uimm ^= 0b1000; > @@ -351,6 +357,8 @@ void HELPER(vaeskf2_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, > uint32_t total_elems = vext_get_total_elems(env, desc, 4); > uint32_t vta = vext_vta(desc); > > + VSTART_CHECK_EARLY_EXIT(env); > + > uimm &= 0b1111; > if (uimm > 14 || uimm < 2) { > uimm ^= 0b1000; > @@ -457,6 +465,8 @@ void HELPER(vsha2ms_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, > uint32_t total_elems; > uint32_t vta = vext_vta(desc); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { > if (sew == MO_32) { > vsha2ms_e32(((uint32_t *)vd) + i * 4, ((uint32_t *)vs1) + i * 4, > @@ -572,6 +582,8 @@ void HELPER(vsha2ch32_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, > uint32_t total_elems; > uint32_t vta = vext_vta(desc); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { > vsha2c_32(((uint32_t *)vs2) + 4 * i, ((uint32_t *)vd) + 4 * i, > ((uint32_t *)vs1) + 4 * i + 2); > @@ -590,6 +602,8 @@ void HELPER(vsha2ch64_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, > uint32_t total_elems; > uint32_t vta = vext_vta(desc); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { > vsha2c_64(((uint64_t *)vs2) + 4 * i, ((uint64_t *)vd) + 4 * i, > ((uint64_t *)vs1) + 4 * i + 2); > @@ -608,6 +622,8 @@ void HELPER(vsha2cl32_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, > uint32_t total_elems; > uint32_t vta = vext_vta(desc); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { > vsha2c_32(((uint32_t *)vs2) + 4 * i, ((uint32_t *)vd) + 4 * i, > (((uint32_t *)vs1) + 4 * i)); > @@ -626,6 +642,8 @@ void HELPER(vsha2cl64_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, > uint32_t total_elems; > uint32_t vta = vext_vta(desc); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { > vsha2c_64(((uint64_t *)vs2) + 4 * i, ((uint64_t *)vd) + 4 * i, > (((uint64_t *)vs1) + 4 * i)); > @@ -658,6 +676,8 @@ void HELPER(vsm3me_vv)(void *vd_vptr, void *vs1_vptr, void *vs2_vptr, > uint32_t *vs1 = vs1_vptr; > uint32_t *vs2 = vs2_vptr; > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (int i = env->vstart / 8; i < env->vl / 8; i++) { > uint32_t w[24]; > for (int j = 0; j < 8; j++) { > @@ -757,6 +777,8 @@ void HELPER(vsm3c_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, > uint32_t *vs2 = vs2_vptr; > uint32_t v1[8], v2[8], v3[8]; > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (int i = env->vstart / 8; i < env->vl / 8; i++) { > for (int k = 0; k < 8; k++) { > v2[k] = bswap32(vd[H4(i * 8 + k)]); > @@ -780,6 +802,8 @@ void HELPER(vghsh_vv)(void *vd_vptr, void *vs1_vptr, void *vs2_vptr, > uint32_t vta = vext_vta(desc); > uint32_t total_elems = vext_get_total_elems(env, desc, 4); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { > uint64_t Y[2] = {vd[i * 2 + 0], vd[i * 2 + 1]}; > uint64_t H[2] = {brev8(vs2[i * 2 + 0]), brev8(vs2[i * 2 + 1])}; > @@ -817,6 +841,8 @@ void HELPER(vgmul_vv)(void *vd_vptr, void *vs2_vptr, CPURISCVState *env, > uint32_t vta = vext_vta(desc); > uint32_t total_elems = vext_get_total_elems(env, desc, 4); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { > uint64_t Y[2] = {brev8(vd[i * 2 + 0]), brev8(vd[i * 2 + 1])}; > uint64_t H[2] = {brev8(vs2[i * 2 + 0]), brev8(vs2[i * 2 + 1])}; > @@ -853,6 +879,8 @@ void HELPER(vsm4k_vi)(void *vd, void *vs2, uint32_t uimm5, CPURISCVState *env, > uint32_t esz = sizeof(uint32_t); > uint32_t total_elems = vext_get_total_elems(env, desc, esz); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = group_start; i < group_end; ++i) { > uint32_t vstart = i * egs; > uint32_t vend = (i + 1) * egs; > @@ -909,6 +937,8 @@ void HELPER(vsm4r_vv)(void *vd, void *vs2, CPURISCVState *env, uint32_t desc) > uint32_t esz = sizeof(uint32_t); > uint32_t total_elems = vext_get_total_elems(env, desc, esz); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = group_start; i < group_end; ++i) { > uint32_t vstart = i * egs; > uint32_t vend = (i + 1) * egs; > @@ -943,6 +973,8 @@ void HELPER(vsm4r_vs)(void *vd, void *vs2, CPURISCVState *env, uint32_t desc) > uint32_t esz = sizeof(uint32_t); > uint32_t total_elems = vext_get_total_elems(env, desc, esz); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = group_start; i < group_end; ++i) { > uint32_t vstart = i * egs; > uint32_t vend = (i + 1) * egs; > diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c > index 1f4c276b21..63a1083f03 100644 > --- a/target/riscv/vector_helper.c > +++ b/target/riscv/vector_helper.c > @@ -207,6 +207,8 @@ vext_ldst_stride(void *vd, void *v0, target_ulong base, > uint32_t esz = 1 << log2_esz; > uint32_t vma = vext_vma(desc); > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (i = env->vstart; i < env->vl; i++, env->vstart++) { > k = 0; > while (k < nf) { > @@ -272,6 +274,8 @@ vext_ldst_us(void *vd, target_ulong base, CPURISCVState *env, uint32_t desc, > uint32_t max_elems = vext_max_elems(desc, log2_esz); > uint32_t esz = 1 << log2_esz; > > + VSTART_CHECK_EARLY_EXIT(env); > + > /* load bytes from guest memory */ > for (i = env->vstart; i < evl; i++, env->vstart++) { > k = 0; > @@ -386,6 +390,8 @@ vext_ldst_index(void *vd, void *v0, target_ulong base, > uint32_t esz = 1 << log2_esz; > uint32_t vma = vext_vma(desc); > > + VSTART_CHECK_EARLY_EXIT(env); > + > /* load bytes from guest memory */ > for (i = env->vstart; i < env->vl; i++, env->vstart++) { > k = 0; > @@ -477,6 +483,8 @@ vext_ldff(void *vd, void *v0, target_ulong base, > target_ulong addr, offset, remain; > int mmu_index = riscv_env_mmu_index(env, false); > > + VSTART_CHECK_EARLY_EXIT(env); > + > /* probe every access */ > for (i = env->vstart; i < env->vl; i++) { > if (!vm && !vext_elem_mask(v0, i)) { > @@ -882,6 +890,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ > uint32_t vta = vext_vta(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ > ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ > @@ -914,6 +924,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ > uint32_t vta = vext_vta(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ > ETYPE carry = vext_elem_mask(v0, i); \ > @@ -949,6 +961,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ > uint32_t vta_all_1s = vext_vta_all_1s(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ > ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ > @@ -987,6 +1001,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ > uint32_t vta_all_1s = vext_vta_all_1s(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ > ETYPE carry = !vm && vext_elem_mask(v0, i); \ > @@ -1083,6 +1099,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > @@ -1130,6 +1148,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > @@ -1192,6 +1212,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ > ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ > @@ -1257,6 +1279,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ > if (!vm && !vext_elem_mask(v0, i)) { \ > @@ -1804,6 +1828,8 @@ void HELPER(NAME)(void *vd, void *vs1, CPURISCVState *env, \ > uint32_t vta = vext_vta(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ > *((ETYPE *)vd + H(i)) = s1; \ > @@ -1828,6 +1854,8 @@ void HELPER(NAME)(void *vd, uint64_t s1, CPURISCVState *env, \ > uint32_t vta = vext_vta(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > *((ETYPE *)vd + H(i)) = (ETYPE)s1; \ > } \ > @@ -1851,6 +1879,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ > uint32_t vta = vext_vta(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE *vt = (!vext_elem_mask(v0, i) ? vs2 : vs1); \ > *((ETYPE *)vd + H(i)) = *(vt + H(i)); \ > @@ -1875,6 +1905,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ > uint32_t vta = vext_vta(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ > ETYPE d = (!vext_elem_mask(v0, i) ? s2 : \ > @@ -1920,6 +1952,8 @@ vext_vv_rm_1(void *vd, void *v0, void *vs1, void *vs2, > uint32_t vl, uint32_t vm, int vxrm, > opivv2_rm_fn *fn, uint32_t vma, uint32_t esz) > { > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = env->vstart; i < vl; i++) { > if (!vm && !vext_elem_mask(v0, i)) { > /* set masked-off elements to 1s */ > @@ -2045,6 +2079,8 @@ vext_vx_rm_1(void *vd, void *v0, target_long s1, void *vs2, > uint32_t vl, uint32_t vm, int vxrm, > opivx2_rm_fn *fn, uint32_t vma, uint32_t esz) > { > + VSTART_CHECK_EARLY_EXIT(env); > + > for (uint32_t i = env->vstart; i < vl; i++) { > if (!vm && !vext_elem_mask(v0, i)) { > /* set masked-off elements to 1s */ > @@ -2842,6 +2878,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > @@ -2885,6 +2923,8 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > @@ -3471,6 +3511,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > if (vl == 0) { \ > return; \ > } \ > @@ -3992,6 +4034,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ > ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ > @@ -4032,6 +4076,8 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, void *vs2, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ > if (!vm && !vext_elem_mask(v0, i)) { \ > @@ -4225,6 +4271,8 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, void *vs2, \ > uint32_t vta = vext_vta(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ > *((ETYPE *)vd + H(i)) = \ > @@ -4549,6 +4597,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ > uint32_t i; \ > int a, b; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > a = vext_elem_mask(vs1, i); \ > b = vext_elem_mask(vs2, i); \ > @@ -4742,6 +4792,8 @@ void HELPER(NAME)(void *vd, void *v0, CPURISCVState *env, uint32_t desc) \ > uint32_t vma = vext_vma(desc); \ > int i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > @@ -4777,6 +4829,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ > uint32_t vma = vext_vma(desc); \ > target_ulong offset = s1, i_min, i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > i_min = MAX(env->vstart, offset); \ > for (i = i_min; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > @@ -4810,6 +4864,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ > uint32_t vma = vext_vma(desc); \ > target_ulong i_max, i_min, i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > i_min = MIN(s1 < vlmax ? vlmax - s1 : 0, vl); \ > i_max = MAX(i_min, env->vstart); \ > for (i = env->vstart; i < i_max; ++i) { \ > @@ -4852,6 +4908,8 @@ static void vslide1up_##BITWIDTH(void *vd, void *v0, uint64_t s1, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > @@ -4901,6 +4959,8 @@ static void vslide1down_##BITWIDTH(void *vd, void *v0, uint64_t s1, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > @@ -4976,6 +5036,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ > uint64_t index; \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > @@ -5019,6 +5081,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ > uint64_t index = s1; \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > @@ -5113,6 +5177,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > diff --git a/target/riscv/vector_internals.c b/target/riscv/vector_internals.c > index 12f5964fbb..996c21eb31 100644 > --- a/target/riscv/vector_internals.c > +++ b/target/riscv/vector_internals.c > @@ -44,6 +44,8 @@ void do_vext_vv(void *vd, void *v0, void *vs1, void *vs2, > uint32_t vma = vext_vma(desc); > uint32_t i; > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (i = env->vstart; i < vl; i++) { > if (!vm && !vext_elem_mask(v0, i)) { > /* set masked-off elements to 1s */ > @@ -68,6 +70,8 @@ void do_vext_vx(void *vd, void *v0, target_long s1, void *vs2, > uint32_t vma = vext_vma(desc); > uint32_t i; > > + VSTART_CHECK_EARLY_EXIT(env); > + > for (i = env->vstart; i < vl; i++) { > if (!vm && !vext_elem_mask(v0, i)) { > /* set masked-off elements to 1s */ > diff --git a/target/riscv/vector_internals.h b/target/riscv/vector_internals.h > index 842765f6c1..9e1e15b575 100644 > --- a/target/riscv/vector_internals.h > +++ b/target/riscv/vector_internals.h > @@ -24,6 +24,13 @@ > #include "tcg/tcg-gvec-desc.h" > #include "internals.h" > > +#define VSTART_CHECK_EARLY_EXIT(env) do { \ > + if (env->vstart >= env->vl) { \ > + env->vstart = 0; \ > + return; \ > + } \ > +} while (0) > + > static inline uint32_t vext_nf(uint32_t desc) > { > return FIELD_EX32(simd_data(desc), VDATA, NF); > @@ -151,6 +158,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ > uint32_t vma = vext_vma(desc); \ > uint32_t i; \ > \ > + VSTART_CHECK_EARLY_EXIT(env); \ > + \ > for (i = env->vstart; i < vl; i++) { \ > if (!vm && !vext_elem_mask(v0, i)) { \ > /* set masked-off elements to 1s */ \ > -- > 2.44.0 > >
diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c index e2d719b13b..f7423df226 100644 --- a/target/riscv/vcrypto_helper.c +++ b/target/riscv/vcrypto_helper.c @@ -222,6 +222,8 @@ static inline void xor_round_key(AESState *round_state, AESState *round_key) uint32_t total_elems = vext_get_total_elems(env, desc, 4); \ uint32_t vta = vext_vta(desc); \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { \ AESState round_key; \ round_key.d[0] = *((uint64_t *)vs2 + H8(i * 2 + 0)); \ @@ -246,6 +248,8 @@ static inline void xor_round_key(AESState *round_state, AESState *round_key) uint32_t total_elems = vext_get_total_elems(env, desc, 4); \ uint32_t vta = vext_vta(desc); \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { \ AESState round_key; \ round_key.d[0] = *((uint64_t *)vs2 + H8(0)); \ @@ -305,6 +309,8 @@ void HELPER(vaeskf1_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, uint32_t total_elems = vext_get_total_elems(env, desc, 4); uint32_t vta = vext_vta(desc); + VSTART_CHECK_EARLY_EXIT(env); + uimm &= 0b1111; if (uimm > 10 || uimm == 0) { uimm ^= 0b1000; @@ -351,6 +357,8 @@ void HELPER(vaeskf2_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, uint32_t total_elems = vext_get_total_elems(env, desc, 4); uint32_t vta = vext_vta(desc); + VSTART_CHECK_EARLY_EXIT(env); + uimm &= 0b1111; if (uimm > 14 || uimm < 2) { uimm ^= 0b1000; @@ -457,6 +465,8 @@ void HELPER(vsha2ms_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, uint32_t total_elems; uint32_t vta = vext_vta(desc); + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { if (sew == MO_32) { vsha2ms_e32(((uint32_t *)vd) + i * 4, ((uint32_t *)vs1) + i * 4, @@ -572,6 +582,8 @@ void HELPER(vsha2ch32_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, uint32_t total_elems; uint32_t vta = vext_vta(desc); + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { vsha2c_32(((uint32_t *)vs2) + 4 * i, ((uint32_t *)vd) + 4 * i, ((uint32_t *)vs1) + 4 * i + 2); @@ -590,6 +602,8 @@ void HELPER(vsha2ch64_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, uint32_t total_elems; uint32_t vta = vext_vta(desc); + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { vsha2c_64(((uint64_t *)vs2) + 4 * i, ((uint64_t *)vd) + 4 * i, ((uint64_t *)vs1) + 4 * i + 2); @@ -608,6 +622,8 @@ void HELPER(vsha2cl32_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, uint32_t total_elems; uint32_t vta = vext_vta(desc); + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { vsha2c_32(((uint32_t *)vs2) + 4 * i, ((uint32_t *)vd) + 4 * i, (((uint32_t *)vs1) + 4 * i)); @@ -626,6 +642,8 @@ void HELPER(vsha2cl64_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, uint32_t total_elems; uint32_t vta = vext_vta(desc); + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { vsha2c_64(((uint64_t *)vs2) + 4 * i, ((uint64_t *)vd) + 4 * i, (((uint64_t *)vs1) + 4 * i)); @@ -658,6 +676,8 @@ void HELPER(vsm3me_vv)(void *vd_vptr, void *vs1_vptr, void *vs2_vptr, uint32_t *vs1 = vs1_vptr; uint32_t *vs2 = vs2_vptr; + VSTART_CHECK_EARLY_EXIT(env); + for (int i = env->vstart / 8; i < env->vl / 8; i++) { uint32_t w[24]; for (int j = 0; j < 8; j++) { @@ -757,6 +777,8 @@ void HELPER(vsm3c_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, uint32_t *vs2 = vs2_vptr; uint32_t v1[8], v2[8], v3[8]; + VSTART_CHECK_EARLY_EXIT(env); + for (int i = env->vstart / 8; i < env->vl / 8; i++) { for (int k = 0; k < 8; k++) { v2[k] = bswap32(vd[H4(i * 8 + k)]); @@ -780,6 +802,8 @@ void HELPER(vghsh_vv)(void *vd_vptr, void *vs1_vptr, void *vs2_vptr, uint32_t vta = vext_vta(desc); uint32_t total_elems = vext_get_total_elems(env, desc, 4); + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { uint64_t Y[2] = {vd[i * 2 + 0], vd[i * 2 + 1]}; uint64_t H[2] = {brev8(vs2[i * 2 + 0]), brev8(vs2[i * 2 + 1])}; @@ -817,6 +841,8 @@ void HELPER(vgmul_vv)(void *vd_vptr, void *vs2_vptr, CPURISCVState *env, uint32_t vta = vext_vta(desc); uint32_t total_elems = vext_get_total_elems(env, desc, 4); + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { uint64_t Y[2] = {brev8(vd[i * 2 + 0]), brev8(vd[i * 2 + 1])}; uint64_t H[2] = {brev8(vs2[i * 2 + 0]), brev8(vs2[i * 2 + 1])}; @@ -853,6 +879,8 @@ void HELPER(vsm4k_vi)(void *vd, void *vs2, uint32_t uimm5, CPURISCVState *env, uint32_t esz = sizeof(uint32_t); uint32_t total_elems = vext_get_total_elems(env, desc, esz); + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = group_start; i < group_end; ++i) { uint32_t vstart = i * egs; uint32_t vend = (i + 1) * egs; @@ -909,6 +937,8 @@ void HELPER(vsm4r_vv)(void *vd, void *vs2, CPURISCVState *env, uint32_t desc) uint32_t esz = sizeof(uint32_t); uint32_t total_elems = vext_get_total_elems(env, desc, esz); + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = group_start; i < group_end; ++i) { uint32_t vstart = i * egs; uint32_t vend = (i + 1) * egs; @@ -943,6 +973,8 @@ void HELPER(vsm4r_vs)(void *vd, void *vs2, CPURISCVState *env, uint32_t desc) uint32_t esz = sizeof(uint32_t); uint32_t total_elems = vext_get_total_elems(env, desc, esz); + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = group_start; i < group_end; ++i) { uint32_t vstart = i * egs; uint32_t vend = (i + 1) * egs; diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 1f4c276b21..63a1083f03 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -207,6 +207,8 @@ vext_ldst_stride(void *vd, void *v0, target_ulong base, uint32_t esz = 1 << log2_esz; uint32_t vma = vext_vma(desc); + VSTART_CHECK_EARLY_EXIT(env); + for (i = env->vstart; i < env->vl; i++, env->vstart++) { k = 0; while (k < nf) { @@ -272,6 +274,8 @@ vext_ldst_us(void *vd, target_ulong base, CPURISCVState *env, uint32_t desc, uint32_t max_elems = vext_max_elems(desc, log2_esz); uint32_t esz = 1 << log2_esz; + VSTART_CHECK_EARLY_EXIT(env); + /* load bytes from guest memory */ for (i = env->vstart; i < evl; i++, env->vstart++) { k = 0; @@ -386,6 +390,8 @@ vext_ldst_index(void *vd, void *v0, target_ulong base, uint32_t esz = 1 << log2_esz; uint32_t vma = vext_vma(desc); + VSTART_CHECK_EARLY_EXIT(env); + /* load bytes from guest memory */ for (i = env->vstart; i < env->vl; i++, env->vstart++) { k = 0; @@ -477,6 +483,8 @@ vext_ldff(void *vd, void *v0, target_ulong base, target_ulong addr, offset, remain; int mmu_index = riscv_env_mmu_index(env, false); + VSTART_CHECK_EARLY_EXIT(env); + /* probe every access */ for (i = env->vstart; i < env->vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { @@ -882,6 +890,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vta = vext_vta(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ @@ -914,6 +924,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ uint32_t vta = vext_vta(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ ETYPE carry = vext_elem_mask(v0, i); \ @@ -949,6 +961,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vta_all_1s = vext_vta_all_1s(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ @@ -987,6 +1001,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ uint32_t vta_all_1s = vext_vta_all_1s(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ ETYPE carry = !vm && vext_elem_mask(v0, i); \ @@ -1083,6 +1099,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ @@ -1130,6 +1148,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ @@ -1192,6 +1212,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ @@ -1257,6 +1279,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ if (!vm && !vext_elem_mask(v0, i)) { \ @@ -1804,6 +1828,8 @@ void HELPER(NAME)(void *vd, void *vs1, CPURISCVState *env, \ uint32_t vta = vext_vta(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ *((ETYPE *)vd + H(i)) = s1; \ @@ -1828,6 +1854,8 @@ void HELPER(NAME)(void *vd, uint64_t s1, CPURISCVState *env, \ uint32_t vta = vext_vta(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ *((ETYPE *)vd + H(i)) = (ETYPE)s1; \ } \ @@ -1851,6 +1879,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vta = vext_vta(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE *vt = (!vext_elem_mask(v0, i) ? vs2 : vs1); \ *((ETYPE *)vd + H(i)) = *(vt + H(i)); \ @@ -1875,6 +1905,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ uint32_t vta = vext_vta(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ ETYPE d = (!vext_elem_mask(v0, i) ? s2 : \ @@ -1920,6 +1952,8 @@ vext_vv_rm_1(void *vd, void *v0, void *vs1, void *vs2, uint32_t vl, uint32_t vm, int vxrm, opivv2_rm_fn *fn, uint32_t vma, uint32_t esz) { + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = env->vstart; i < vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { /* set masked-off elements to 1s */ @@ -2045,6 +2079,8 @@ vext_vx_rm_1(void *vd, void *v0, target_long s1, void *vs2, uint32_t vl, uint32_t vm, int vxrm, opivx2_rm_fn *fn, uint32_t vma, uint32_t esz) { + VSTART_CHECK_EARLY_EXIT(env); + for (uint32_t i = env->vstart; i < vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { /* set masked-off elements to 1s */ @@ -2842,6 +2878,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ @@ -2885,6 +2923,8 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ @@ -3471,6 +3511,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ if (vl == 0) { \ return; \ } \ @@ -3992,6 +4034,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ @@ -4032,6 +4076,8 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, void *vs2, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ if (!vm && !vext_elem_mask(v0, i)) { \ @@ -4225,6 +4271,8 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, void *vs2, \ uint32_t vta = vext_vta(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ *((ETYPE *)vd + H(i)) = \ @@ -4549,6 +4597,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ uint32_t i; \ int a, b; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ a = vext_elem_mask(vs1, i); \ b = vext_elem_mask(vs2, i); \ @@ -4742,6 +4792,8 @@ void HELPER(NAME)(void *vd, void *v0, CPURISCVState *env, uint32_t desc) \ uint32_t vma = vext_vma(desc); \ int i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ @@ -4777,6 +4829,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ uint32_t vma = vext_vma(desc); \ target_ulong offset = s1, i_min, i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ i_min = MAX(env->vstart, offset); \ for (i = i_min; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ @@ -4810,6 +4864,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ uint32_t vma = vext_vma(desc); \ target_ulong i_max, i_min, i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ i_min = MIN(s1 < vlmax ? vlmax - s1 : 0, vl); \ i_max = MAX(i_min, env->vstart); \ for (i = env->vstart; i < i_max; ++i) { \ @@ -4852,6 +4908,8 @@ static void vslide1up_##BITWIDTH(void *vd, void *v0, uint64_t s1, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ @@ -4901,6 +4959,8 @@ static void vslide1down_##BITWIDTH(void *vd, void *v0, uint64_t s1, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ @@ -4976,6 +5036,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint64_t index; \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ @@ -5019,6 +5081,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ uint64_t index = s1; \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ @@ -5113,6 +5177,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ diff --git a/target/riscv/vector_internals.c b/target/riscv/vector_internals.c index 12f5964fbb..996c21eb31 100644 --- a/target/riscv/vector_internals.c +++ b/target/riscv/vector_internals.c @@ -44,6 +44,8 @@ void do_vext_vv(void *vd, void *v0, void *vs1, void *vs2, uint32_t vma = vext_vma(desc); uint32_t i; + VSTART_CHECK_EARLY_EXIT(env); + for (i = env->vstart; i < vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { /* set masked-off elements to 1s */ @@ -68,6 +70,8 @@ void do_vext_vx(void *vd, void *v0, target_long s1, void *vs2, uint32_t vma = vext_vma(desc); uint32_t i; + VSTART_CHECK_EARLY_EXIT(env); + for (i = env->vstart; i < vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { /* set masked-off elements to 1s */ diff --git a/target/riscv/vector_internals.h b/target/riscv/vector_internals.h index 842765f6c1..9e1e15b575 100644 --- a/target/riscv/vector_internals.h +++ b/target/riscv/vector_internals.h @@ -24,6 +24,13 @@ #include "tcg/tcg-gvec-desc.h" #include "internals.h" +#define VSTART_CHECK_EARLY_EXIT(env) do { \ + if (env->vstart >= env->vl) { \ + env->vstart = 0; \ + return; \ + } \ +} while (0) + static inline uint32_t vext_nf(uint32_t desc) { return FIELD_EX32(simd_data(desc), VDATA, NF); @@ -151,6 +158,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ + VSTART_CHECK_EARLY_EXIT(env); \ + \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \