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target/arm: Implement MVE VAND, VBIC, VORR, VORN, VEOR

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Implement the MVE vector logical operations operating
on two registers.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-12-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2021-06-17 13:15:55 +01:00
parent ab59362fca
commit 68245e442c
4 changed files with 78 additions and 0 deletions
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6
target/arm/helper-mve.h
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@ -63,3 +63,9 @@ DEF_HELPER_FLAGS_3(mve_vnegh, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vnegw, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vfnegh, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vfnegs, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vand, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vbic, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vorr, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vorn, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_veor, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)

9
target/arm/mve.decode
View File

@ -25,6 +25,7 @@
&vldr_vstr rn qd imm p a w size l u
&1op qd qm size
&2op qd qm qn size
@vldr_vstr ....... . . . . l:1 rn:4 ... ...... imm:7 &vldr_vstr qd=%qd u=0
# Note that both Rn and Qd are 3 bits only (no D bit)
@ -32,6 +33,7 @@
@1op .... .... .... size:2 .. .... .... .... .... &1op qd=%qd qm=%qm
@1op_nosz .... .... .... .... .... .... .... .... &1op qd=%qd qm=%qm size=0
@2op_nosz .... .... .... .... .... .... .... .... &2op qd=%qd qm=%qm qn=%qn size=0
# Vector loads and stores
@ -68,6 +70,13 @@ VLDR_VSTR 1110110 1 a:1 . w:1 . .... ... 111101 ....... @vldr_vstr \
VLDR_VSTR 1110110 1 a:1 . w:1 . .... ... 111110 ....... @vldr_vstr \
size=2 p=1
# Vector 2-op
VAND 1110 1111 0 . 00 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
VBIC 1110 1111 0 . 01 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
VORR 1110 1111 0 . 10 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
VORN 1110 1111 0 . 11 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
VEOR 1111 1111 0 . 00 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
# Vector miscellaneous
VCLS 1111 1111 1 . 11 .. 00 ... 0 0100 01 . 0 ... 0 @1op

26
target/arm/mve_helper.c
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@ -322,3 +322,29 @@ DO_1OP(vnegw, 4, int32_t, DO_NEG)
/* We can do these 64 bits at a time */
DO_1OP(vfnegh, 8, uint64_t, DO_FNEGH)
DO_1OP(vfnegs, 8, uint64_t, DO_FNEGS)
#define DO_2OP(OP, ESIZE, TYPE, FN) \
void HELPER(glue(mve_, OP))(CPUARMState *env, \
void *vd, void *vn, void *vm) \
{ \
TYPE *d = vd, *n = vn, *m = vm; \
uint16_t mask = mve_element_mask(env); \
unsigned e; \
for (e = 0; e < 16 / ESIZE; e++, mask >>= ESIZE) { \
mergemask(&d[H##ESIZE(e)], \
FN(n[H##ESIZE(e)], m[H##ESIZE(e)]), mask); \
} \
mve_advance_vpt(env); \
}
#define DO_AND(N, M) ((N) & (M))
#define DO_BIC(N, M) ((N) & ~(M))
#define DO_ORR(N, M) ((N) | (M))
#define DO_ORN(N, M) ((N) | ~(M))
#define DO_EOR(N, M) ((N) ^ (M))
DO_2OP(vand, 8, uint64_t, DO_AND)
DO_2OP(vbic, 8, uint64_t, DO_BIC)
DO_2OP(vorr, 8, uint64_t, DO_ORR)
DO_2OP(vorn, 8, uint64_t, DO_ORN)
DO_2OP(veor, 8, uint64_t, DO_EOR)

37
target/arm/translate-mve.c
View File

@ -30,6 +30,7 @@
typedef void MVEGenLdStFn(TCGv_ptr, TCGv_ptr, TCGv_i32);
typedef void MVEGenOneOpFn(TCGv_ptr, TCGv_ptr, TCGv_ptr);
typedef void MVEGenTwoOpFn(TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_ptr);
/* Return the offset of a Qn register (same semantics as aa32_vfp_qreg()) */
static inline long mve_qreg_offset(unsigned reg)
@ -294,3 +295,39 @@ static bool trans_VNEG_fp(DisasContext *s, arg_1op *a)
}
return do_1op(s, a, fns[a->size]);
}
static bool do_2op(DisasContext *s, arg_2op *a, MVEGenTwoOpFn fn)
{
TCGv_ptr qd, qn, qm;
if (!dc_isar_feature(aa32_mve, s) ||
!mve_check_qreg_bank(s, a->qd | a->qn | a->qm) ||
!fn) {
return false;
}
if (!mve_eci_check(s) || !vfp_access_check(s)) {
return true;
}
qd = mve_qreg_ptr(a->qd);
qn = mve_qreg_ptr(a->qn);
qm = mve_qreg_ptr(a->qm);
fn(cpu_env, qd, qn, qm);
tcg_temp_free_ptr(qd);
tcg_temp_free_ptr(qn);
tcg_temp_free_ptr(qm);
mve_update_eci(s);
return true;
}
#define DO_LOGIC(INSN, HELPER) \
static bool trans_##INSN(DisasContext *s, arg_2op *a) \
{ \
return do_2op(s, a, HELPER); \
}
DO_LOGIC(VAND, gen_helper_mve_vand)
DO_LOGIC(VBIC, gen_helper_mve_vbic)
DO_LOGIC(VORR, gen_helper_mve_vorr)
DO_LOGIC(VORN, gen_helper_mve_vorn)
DO_LOGIC(VEOR, gen_helper_mve_veor)