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lib/math32: Avoid __uint128_t casts for LDC ImportC #19497

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Merged
acassis merged 1 commit into from
Jul 21, 2026
+4 −2
Merged

lib/math32: Avoid __uint128_t casts for LDC ImportC #19497

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6 changes: 4 additions & 2 deletions include/nuttx/lib/math32.h
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Original file line number Diff line number Diff line change
Expand Up @@ -495,7 +495,8 @@ static inline_function uint64_t invdiv_umulh64(uint64_t a, uint64_t b)
* the inline assembly.
*/

__uint128_t res128 = (__uint128_t)a * b;
__uint128_t a128 = a;
__uint128_t res128 = a128 * b;
return res128 >> 64;
#endif
}
Expand Down Expand Up @@ -542,7 +543,8 @@ void invdiv_init_param64(uint64_t d, FAR invdiv_param64_t *param)

param->mult = q[0] + 1;
#else
param->mult = ((__uint128_t)1 << 64) * t / d + 1;
__uint128_t one128 = 1;
param->mult = (one128 << 64) * t / d + 1;
#endif
param->shift = l - 1;
}
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