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target/arm: Implement MVE VADDV

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Implement the MVE VADDV insn, which performs an addition
across vector lanes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-44-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2021-06-17 13:16:27 +01:00
parent 8625693ac4
commit 6f060a636b
4 changed files with 76 additions and 0 deletions
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24
target/arm/mve_helper.c
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@ -1134,3 +1134,27 @@ DO_LDAVH(vrmlaldavhuw, 4, uint32_t, false, int128_add, int128_add, int128_make64
DO_LDAVH(vrmlsldavhsw, 4, int32_t, false, int128_add, int128_sub, int128_makes64)
DO_LDAVH(vrmlsldavhxsw, 4, int32_t, true, int128_add, int128_sub, int128_makes64)
/* Vector add across vector */
#define DO_VADDV(OP, ESIZE, TYPE) \
uint32_t HELPER(glue(mve_, OP))(CPUARMState *env, void *vm, \
uint32_t ra) \
{ \
uint16_t mask = mve_element_mask(env); \
unsigned e; \
TYPE *m = vm; \
for (e = 0; e < 16 / ESIZE; e++, mask >>= ESIZE) { \
if (mask & 1) { \
ra += m[H##ESIZE(e)]; \
} \
} \
mve_advance_vpt(env); \
return ra; \
} \
DO_VADDV(vaddvsb, 1, uint8_t)
DO_VADDV(vaddvsh, 2, uint16_t)
DO_VADDV(vaddvsw, 4, uint32_t)
DO_VADDV(vaddvub, 1, uint8_t)
DO_VADDV(vaddvuh, 2, uint16_t)
DO_VADDV(vaddvuw, 4, uint32_t)