diff mbox series

[12/18] target/ppc: Use clmul_32* routines

Message ID 20230713211435.13505-13-richard.henderson@linaro.org
State Superseded
Headers show
Series crypto: Provide clmul.h and host accel | expand

Commit Message

Richard Henderson July 13, 2023, 9:14 p.m. UTC 
Use generic routines for 32-bit carry-less multiply.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/ppc/int_helper.c | 27 +++++++--------------------
 1 file changed, 7 insertions(+), 20 deletions(-)
diff mbox series

Patch

diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index 98d6310f59..828f04bce7 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -1444,28 +1444,15 @@  void helper_vpmsumh(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
     r->s128 = int128_xor(e, o);
 }
 
-#define PMSUM(name, srcfld, trgfld, trgtyp)                   \
-void helper_##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)  \
-{                                                             \
-    int i, j;                                                 \
-    trgtyp prod[sizeof(ppc_avr_t) / sizeof(a->srcfld[0])];    \
-                                                              \
-    VECTOR_FOR_INORDER_I(i, srcfld) {                         \
-        prod[i] = 0;                                          \
-        for (j = 0; j < sizeof(a->srcfld[0]) * 8; j++) {      \
-            if (a->srcfld[i] & (1ull << j)) {                 \
-                prod[i] ^= ((trgtyp)b->srcfld[i] << j);       \
-            }                                                 \
-        }                                                     \
-    }                                                         \
-                                                              \
-    VECTOR_FOR_INORDER_I(i, trgfld) {                         \
-        r->trgfld[i] = prod[2 * i] ^ prod[2 * i + 1];         \
-    }                                                         \
+void helper_vpmsumw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
+{
+    Int128 ia = a->s128;
+    Int128 ib = b->s128;
+    Int128 e = clmul_32x2_even(ia, ib);
+    Int128 o = clmul_32x2_odd(ia, ib);
+    r->s128 = int128_xor(e, o);
 }
 
-PMSUM(vpmsumw, u32, u64, uint64_t)
-
 void helper_VPMSUMD(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 {
     int i, j;