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Make variable name consistent in x86_64 asm

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2023-09-08 17:19:32 +01:00
parent 5f249852a5
commit b6b8f6c68d
1 changed files with 7 additions and 7 deletions
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14
library/constant_time_impl.h
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@ -337,17 +337,17 @@ static inline mbedtls_ct_condition_t mbedtls_ct_uint_lt(mbedtls_ct_uint_t x, mbe
);
return (mbedtls_ct_condition_t) x;
#elif defined(MBEDTLS_CT_X86_64_ASM) && (defined(MBEDTLS_CT_SIZE_32) || defined(MBEDTLS_CT_SIZE_64))
uint64_t mask;
asm volatile ("mov %[x], %[mask] \n\t"
"xor %[y], %[mask] \n\t"
uint64_t s;
asm volatile ("mov %[x], %[s] \n\t"
"xor %[y], %[s] \n\t"
"sub %[y], %[x] \n\t"
"and %[mask], %[y] \n\t"
"not %[mask] \n\t"
"and %[mask], %[x] \n\t"
"and %[s], %[y] \n\t"
"not %[s] \n\t"
"and %[s], %[x] \n\t"
"or %[y], %[x] \n\t"
"sar $63, %[x] \n\t"
:
[mask] "=&a" (mask),
[s] "=&a" (s),
[x] "+&D" (x),
[y] "+&S" (y)
: