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fix msvc type cast fail.

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GCC needs the `cast` due to incompatible type error

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu 2023-03-21 16:56:43 +08:00
parent 07d28d8598
commit 9db4b1f455
1 changed files with 15 additions and 3 deletions
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18
library/aesce.c
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@ -296,12 +296,24 @@ static inline poly64_t vget_low_p64(poly64x2_t __a)
* Older compilers miss some intrinsic functions for `poly*_t`. We use * Older compilers miss some intrinsic functions for `poly*_t`. We use
* uint8x16_t and uint8x16x3_t as input/output parameters. * uint8x16_t and uint8x16x3_t as input/output parameters.
*/ */
#if defined(__GNUC__) && !defined(__clang__)
/* GCC reports incompatible type error without cast. GCC think poly64_t and
* poly64x1_t are different, that is different with MSVC and Clang. */
#define MBEDTLS_VMULL_P64(a, b) vmull_p64((poly64_t) a, (poly64_t) b)
#else
/* MSVC reports `error C2440: 'type cast'` with cast. Clang does not report
* error with/without cast. And I think poly64_t and poly64x1_t are same, no
* cast for clang also. */
#define MBEDTLS_VMULL_P64(a, b) vmull_p64(a, b)
#endif
static inline uint8x16_t pmull_low(uint8x16_t a, uint8x16_t b) static inline uint8x16_t pmull_low(uint8x16_t a, uint8x16_t b)
{ {
return vreinterpretq_u8_p128( return vreinterpretq_u8_p128(
vmull_p64( MBEDTLS_VMULL_P64(
(poly64_t) vget_low_p64(vreinterpretq_p64_u8(a)), vget_low_p64(vreinterpretq_p64_u8(a)),
(poly64_t) vget_low_p64(vreinterpretq_p64_u8(b)))); vget_low_p64(vreinterpretq_p64_u8(b))
));
} }
static inline uint8x16_t pmull_high(uint8x16_t a, uint8x16_t b) static inline uint8x16_t pmull_high(uint8x16_t a, uint8x16_t b)