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EXP-062: enable the 4-digit SWAR fraction follow-up on all compilers (drop __clang__ gate)

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fcostaoliveira 2026-07-03 14:13:44 +01:00
parent e0b53eaf63
commit f4f36e04f7
1 changed files with 3 additions and 5 deletions
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8
include/fast_float/ascii_number.h
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@ -268,10 +268,9 @@ loop_parse_if_eight_digits(char const *&p, char const *const pend,
}
// Consume a remaining 4-7 digit run in a single SWAR step instead of
// byte-by-byte (reuses the existing 4-digit helpers). The parsed result is
// identical either way. Gated to clang: on gcc the extra 4-digit check
// regresses inputs whose remainder is shorter than 4 digits (it becomes pure
// overhead there); clang does not show that.
#if defined(__clang__)
// identical either way. Historically gated to clang because gcc regressed on
// short remainders, but that verdict predates the span-elision restructure;
// with the leaner hot path the 4-digit step now wins on gcc as well.
if ((pend - p) >= 4) {
uint32_t const val4 = read4_to_u32(p);
if (is_made_of_four_digits_fast(val4)) {
@ -280,7 +279,6 @@ loop_parse_if_eight_digits(char const *&p, char const *const pend,
p += 4;
}
}
#endif
}
enum class parse_error {