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Fix 32 bit unreachable code build failure

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Given the size of ciL is set dependant on MBEDTLS_HAVE_INT32 /
MBEDTLS_HAVE_INT64, clang rightfully reports this as unreachable code in
32 bit builds. Fix this by using #define guards instead.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2023-06-20 15:57:58 +01:00
parent cd70070c25
commit 215ed131cf
1 changed files with 3 additions and 3 deletions
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6
library/ecp_curves.c
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@ -5577,9 +5577,9 @@ int mbedtls_ecp_mod_p448_raw(mbedtls_mpi_uint *X, size_t X_limbs)
(void) mbedtls_mpi_core_add(X, X, Q, Q_limbs);
/* M = B0 */
if (ciL > 4) {
M[P224_WIDTH_MIN] &= ((mbedtls_mpi_uint)-1) >> (P224_UNUSED_BITS);
}
#ifdef MBEDTLS_HAVE_INT64
M[P224_WIDTH_MIN] &= ((mbedtls_mpi_uint)-1) >> (P224_UNUSED_BITS);
#endif
memset(M + P224_WIDTH_MAX, 0, ((M_limbs - P224_WIDTH_MAX) * ciL));
/* M = M + Q = B0 + B1 */