Use generic routine for 64-bit carry-less multiply.
Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
target/ppc/int_helper.c | 17 +++--------------
1 file changed, 3 insertions(+), 14 deletions(-)
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index ce793cf163..432834c7d5 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -1456,20 +1456,9 @@ 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
--
2.34.1
