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target/s390x: Use clmul_16* routines 

Use generic routines for 16-bit carry-less multiply.
Remove our local version of galois_multiply16.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-07-11 09:35:30 +01:00
parent c6f0dcb1fd
commit 25c304e936
1 changed files with 24 additions and 3 deletions
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27
target/s390x/tcg/vec_int_helper.c
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@ -180,7 +180,6 @@ static uint##TBITS##_t galois_multiply##BITS(uint##TBITS##_t a, \
} \
return res; \
}
DEF_GALOIS_MULTIPLY(16, 32)
DEF_GALOIS_MULTIPLY(32, 64)
static S390Vector galois_multiply64(uint64_t a, uint64_t b)
@ -231,6 +230,30 @@ void HELPER(gvec_vgfma8)(void *v1, const void *v2, const void *v3,
q1[1] = do_gfma8(q2[1], q3[1], q4[1]);
}
static inline uint64_t do_gfma16(uint64_t n, uint64_t m, uint64_t a)
{
return clmul_16x2_even(n, m) ^ clmul_16x2_odd(n, m) ^ a;
}
void HELPER(gvec_vgfm16)(void *v1, const void *v2, const void *v3, uint32_t d)
{
uint64_t *q1 = v1;
const uint64_t *q2 = v2, *q3 = v3;
q1[0] = do_gfma16(q2[0], q3[0], 0);
q1[1] = do_gfma16(q2[1], q3[1], 0);
}
void HELPER(gvec_vgfma16)(void *v1, const void *v2, const void *v3,
const void *v4, uint32_t d)
{
uint64_t *q1 = v1;
const uint64_t *q2 = v2, *q3 = v3, *q4 = v4;
q1[0] = do_gfma16(q2[0], q3[0], q4[0]);
q1[1] = do_gfma16(q2[1], q3[1], q4[1]);
}
#define DEF_VGFM(BITS, TBITS) \
void HELPER(gvec_vgfm##BITS)(void *v1, const void *v2, const void *v3, \
uint32_t desc) \
@ -248,7 +271,6 @@ void HELPER(gvec_vgfm##BITS)(void *v1, const void *v2, const void *v3, \
s390_vec_write_element##TBITS(v1, i, d); \
} \
}
DEF_VGFM(16, 32)
DEF_VGFM(32, 64)
void HELPER(gvec_vgfm64)(void *v1, const void *v2, const void *v3,
@ -284,7 +306,6 @@ void HELPER(gvec_vgfma##BITS)(void *v1, const void *v2, const void *v3, \
s390_vec_write_element##TBITS(v1, i, d); \
} \
}
DEF_VGFMA(16, 32)
DEF_VGFMA(32, 64)
void HELPER(gvec_vgfma64)(void *v1, const void *v2, const void *v3,