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Support armcc builtin byteswap routine

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2022-11-30 12:07:36 +00:00
parent 2d0f27d0fc
commit 2dae4b3ef6
1 changed files with 5 additions and 0 deletions
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5
library/alignment.h
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@ -158,6 +158,11 @@ inline void mbedtls_put_unaligned_uint64( void *p, uint64_t x )
#define MBEDTLS_BSWAP64 _byteswap_uint64
#endif /* defined(_MSC_VER) */
/* Detect armcc built-in byteswap routine */
#if defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 410000)
#define MBEDTLS_BSWAP32 __rev
#endif
/*
* Where compiler built-ins are not present, fall back to C code that the
* compiler may be able to detect and transform into the relevant bswap or