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target/arm: Implement SVE2 integer halving add/subtract (predicated)

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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-24 18:02:33 -07:00 committed by Peter Maydell
parent 45d9503d0a
commit a47dc220e9
4 changed files with 112 additions and 0 deletions
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54
target/arm/helper-sve.h
View File

@ -226,6 +226,60 @@ DEF_HELPER_FLAGS_5(sve2_uqrshl_zpzz_s, TCG_CALL_NO_RWG,
DEF_HELPER_FLAGS_5(sve2_uqrshl_zpzz_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_shadd_zpzz_b, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_shadd_zpzz_h, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_shadd_zpzz_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_shadd_zpzz_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_uhadd_zpzz_b, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_uhadd_zpzz_h, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_uhadd_zpzz_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_uhadd_zpzz_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_srhadd_zpzz_b, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_srhadd_zpzz_h, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_srhadd_zpzz_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_srhadd_zpzz_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_urhadd_zpzz_b, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_urhadd_zpzz_h, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_urhadd_zpzz_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_urhadd_zpzz_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_shsub_zpzz_b, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_shsub_zpzz_h, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_shsub_zpzz_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_shsub_zpzz_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_uhsub_zpzz_b, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_uhsub_zpzz_h, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_uhsub_zpzz_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_uhsub_zpzz_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve_sdiv_zpzz_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve_sdiv_zpzz_d, TCG_CALL_NO_RWG,

11
target/arm/sve.decode
View File

@ -1129,3 +1129,14 @@ SQRSHL 01000100 .. 001 010 100 ... ..... ..... @rdn_pg_rm
UQRSHL 01000100 .. 001 011 100 ... ..... ..... @rdn_pg_rm
SQRSHL 01000100 .. 001 110 100 ... ..... ..... @rdm_pg_rn # SQRSHLR
UQRSHL 01000100 .. 001 111 100 ... ..... ..... @rdm_pg_rn # UQRSHLR
### SVE2 integer halving add/subtract (predicated)
SHADD 01000100 .. 010 000 100 ... ..... ..... @rdn_pg_rm
UHADD 01000100 .. 010 001 100 ... ..... ..... @rdn_pg_rm
SHSUB 01000100 .. 010 010 100 ... ..... ..... @rdn_pg_rm
UHSUB 01000100 .. 010 011 100 ... ..... ..... @rdn_pg_rm
SRHADD 01000100 .. 010 100 100 ... ..... ..... @rdn_pg_rm
URHADD 01000100 .. 010 101 100 ... ..... ..... @rdn_pg_rm
SHSUB 01000100 .. 010 110 100 ... ..... ..... @rdm_pg_rn # SHSUBR
UHSUB 01000100 .. 010 111 100 ... ..... ..... @rdm_pg_rn # UHSUBR

39
target/arm/sve_helper.c
View File

@ -648,6 +648,45 @@ DO_ZPZZ_D(sve2_uqrshl_zpzz_d, uint64_t, do_uqrshl_d)
#undef do_uqrshl_d
#define DO_HADD_BHS(n, m) (((int64_t)n + m) >> 1)
#define DO_HADD_D(n, m) ((n >> 1) + (m >> 1) + (n & m & 1))
DO_ZPZZ(sve2_shadd_zpzz_b, int8_t, H1, DO_HADD_BHS)
DO_ZPZZ(sve2_shadd_zpzz_h, int16_t, H1_2, DO_HADD_BHS)
DO_ZPZZ(sve2_shadd_zpzz_s, int32_t, H1_4, DO_HADD_BHS)
DO_ZPZZ_D(sve2_shadd_zpzz_d, int64_t, DO_HADD_D)
DO_ZPZZ(sve2_uhadd_zpzz_b, uint8_t, H1, DO_HADD_BHS)
DO_ZPZZ(sve2_uhadd_zpzz_h, uint16_t, H1_2, DO_HADD_BHS)
DO_ZPZZ(sve2_uhadd_zpzz_s, uint32_t, H1_4, DO_HADD_BHS)
DO_ZPZZ_D(sve2_uhadd_zpzz_d, uint64_t, DO_HADD_D)
#define DO_RHADD_BHS(n, m) (((int64_t)n + m + 1) >> 1)
#define DO_RHADD_D(n, m) ((n >> 1) + (m >> 1) + ((n | m) & 1))
DO_ZPZZ(sve2_srhadd_zpzz_b, int8_t, H1, DO_RHADD_BHS)
DO_ZPZZ(sve2_srhadd_zpzz_h, int16_t, H1_2, DO_RHADD_BHS)
DO_ZPZZ(sve2_srhadd_zpzz_s, int32_t, H1_4, DO_RHADD_BHS)
DO_ZPZZ_D(sve2_srhadd_zpzz_d, int64_t, DO_RHADD_D)
DO_ZPZZ(sve2_urhadd_zpzz_b, uint8_t, H1, DO_RHADD_BHS)
DO_ZPZZ(sve2_urhadd_zpzz_h, uint16_t, H1_2, DO_RHADD_BHS)
DO_ZPZZ(sve2_urhadd_zpzz_s, uint32_t, H1_4, DO_RHADD_BHS)
DO_ZPZZ_D(sve2_urhadd_zpzz_d, uint64_t, DO_RHADD_D)
#define DO_HSUB_BHS(n, m) (((int64_t)n - m) >> 1)
#define DO_HSUB_D(n, m) ((n >> 1) - (m >> 1) - (~n & m & 1))
DO_ZPZZ(sve2_shsub_zpzz_b, int8_t, H1, DO_HSUB_BHS)
DO_ZPZZ(sve2_shsub_zpzz_h, int16_t, H1_2, DO_HSUB_BHS)
DO_ZPZZ(sve2_shsub_zpzz_s, int32_t, H1_4, DO_HSUB_BHS)
DO_ZPZZ_D(sve2_shsub_zpzz_d, int64_t, DO_HSUB_D)
DO_ZPZZ(sve2_uhsub_zpzz_b, uint8_t, H1, DO_HSUB_BHS)
DO_ZPZZ(sve2_uhsub_zpzz_h, uint16_t, H1_2, DO_HSUB_BHS)
DO_ZPZZ(sve2_uhsub_zpzz_s, uint32_t, H1_4, DO_HSUB_BHS)
DO_ZPZZ_D(sve2_uhsub_zpzz_d, uint64_t, DO_HSUB_D)
#undef DO_ZPZZ
#undef DO_ZPZZ_D

8
target/arm/translate-sve.c
View File

@ -5949,3 +5949,11 @@ DO_SVE2_ZPZZ(SRSHL, srshl)
DO_SVE2_ZPZZ(UQSHL, uqshl)
DO_SVE2_ZPZZ(UQRSHL, uqrshl)
DO_SVE2_ZPZZ(URSHL, urshl)
DO_SVE2_ZPZZ(SHADD, shadd)
DO_SVE2_ZPZZ(SRHADD, srhadd)
DO_SVE2_ZPZZ(SHSUB, shsub)
DO_SVE2_ZPZZ(UHADD, uhadd)
DO_SVE2_ZPZZ(URHADD, urhadd)
DO_SVE2_ZPZZ(UHSUB, uhsub)