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Cap the workaround for mbedtls_mpi_safe_cond_assign on MSVC/ARM64 to MSVC versions prior to 17.1.

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Signed-off-by: Tautvydas Žilys <tautvydas.zilys@gmail.com>
This commit is contained in:
Tautvydas Žilys 2022-01-31 13:34:01 -08:00
parent ea4af4d345
commit 61156f8a6a
1 changed files with 2 additions and 2 deletions
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4
library/constant_time.c
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@ -533,9 +533,9 @@ cleanup:
* about whether the assignment was made or not. * about whether the assignment was made or not.
* (Leaking information about the respective sizes of X and Y is ok however.) * (Leaking information about the respective sizes of X and Y is ok however.)
*/ */
#if defined(_MSC_VER) && defined(_M_ARM64) #if defined(_MSC_VER) && defined(_M_ARM64) && (_MSC_FULL_VER < 193131103)
/* /*
* MSVC miscompiles this function if it's inlined. See: * MSVC miscompiles this function if it's inlined prior to Visual Studio 2022 version 17.1. See:
* https://developercommunity.visualstudio.com/t/c-compiler-miscompiles-part-of-mbedtls-library-on/1646989 * https://developercommunity.visualstudio.com/t/c-compiler-miscompiles-part-of-mbedtls-library-on/1646989
*/ */
__declspec(noinline) __declspec(noinline)