diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-07-11 10:41:28 +0100 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-09-15 13:57:00 +0000 |
| commit | 7bdbf233d9636a4bc73a2513b5e1a83a388626cf (patch) | |
| tree | db38f4d5de150d01295dcaa28887ee1a569d3c07 /target/ppc | |
| parent | ef73fe7cf1cedfb11b77e79d65638645ebd1cbc5 (diff) | |
target/ppc: Use clmul_64
Use generic routine for 64-bit carry-less multiply.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/ppc')
| -rw-r--r-- | target/ppc/int_helper.c | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c index 1ea42b4ede..6fd00684a5 100644 --- a/target/ppc/int_helper.c +++ b/target/ppc/int_helper.c @@ -1455,20 +1455,9 @@ void helper_vpmsumw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) void helper_VPMSUMD(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) { - int i, j; - Int128 tmp, prod[2] = {int128_zero(), int128_zero()}; - - for (j = 0; j < 64; j++) { - for (i = 0; i < ARRAY_SIZE(r->u64); i++) { - if (a->VsrD(i) & (1ull << j)) { - tmp = int128_make64(b->VsrD(i)); - tmp = int128_lshift(tmp, j); - prod[i] = int128_xor(prod[i], tmp); - } - } - } - - r->s128 = int128_xor(prod[0], prod[1]); + Int128 e = clmul_64(a->u64[0], b->u64[0]); + Int128 o = clmul_64(a->u64[1], b->u64[1]); + r->s128 = int128_xor(e, o); } #if HOST_BIG_ENDIAN |