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FASTFLOAT_HAS_SIMD -> FASTFLOAT_USE_SIMD

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HedgehogInTheCPP 2026-08-18 23:43:56 +03:00
parent 262ed0c0fe
commit bfbe4c4869
3 changed files with 10 additions and 7 deletions
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3
README.md
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@ -52,6 +52,9 @@ Introduced new optional macros to minimize overhead when certain parsing feature
* **`FASTFLOAT_X86_SIMD`**
Automatically uses reworking SSE parsing algorithms to improve performance on x86 machines.
* **`FASTFLOAT_USE_SIMD`**
Add possibility to completely disable manual algorithms realization and give compiler more freedom
---

8
include/fast_float/ascii_number.h
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@ -20,7 +20,7 @@ namespace fast_float {
template <typename UC>
fastfloat_really_inline constexpr bool has_simd_opt() noexcept {
#ifdef FASTFLOAT_HAS_SIMD
#ifdef FASTFLOAT_USE_SIMD
return std::is_same<UC, char16_t>::value;
#else
return false;
@ -79,7 +79,7 @@ read_chars_to_unsigned(UC const *chars) noexcept {
return val;
}
#if FASTFLOAT_HAS_SIMD
#if FASTFLOAT_USE_SIMD
#if FASTFLOAT_X86_SIMD
@ -181,7 +181,7 @@ parse_four_digits_unrolled(uint32_t val) noexcept {
return (((val & 0x00FF00FF) * 0x00640001) >> 16) & 0xFFFF;
}
#if FASTFLOAT_HAS_SIMD
#if FASTFLOAT_USE_SIMD
#if FASTFLOAT_X86_SIMD
@ -415,7 +415,7 @@ loop_parse_if_digits(UC const *&p, UC const *const pend, uint64_t &i) noexcept {
fastfloat_really_inline FASTFLOAT_CONSTEXPR20 void
loop_parse_if_digits(char const *&p, char const *const pend,
uint64_t &i) noexcept {
#if FASTFLOAT_X86_SIMD >= 42 && FASTFLOAT_HAS_SIMD
#if FASTFLOAT_X86_SIMD >= 42 && FASTFLOAT_USE_SIMD
if (!is_constant_evaluated()) {
/*
* SSE4.2 handles 16 bytes at once.

6
include/fast_float/float_common.h
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@ -187,7 +187,7 @@ using parse_options = parse_options_t<char>;
#endif
#endif
#ifdef FASTFLOAT_HAS_SIMD // user defined
#ifdef FASTFLOAT_USE_SIMD // user defined
#else
#ifdef FASTFLOAT_X86_SIMD // user defined level
static_assert(FASTFLOAT_X86_SIMD == 20 || FASTFLOAT_X86_SIMD == 42 ||
@ -219,10 +219,10 @@ static_assert(FASTFLOAT_X86_SIMD == 20 || FASTFLOAT_X86_SIMD == 42 ||
#endif
#if defined(FASTFLOAT_X86_SIMD) || defined(FASTFLOAT_ARM_NEON)
#define FASTFLOAT_HAS_SIMD 1
#define FASTFLOAT_USE_SIMD 1
#endif
#if FASTFLOAT_HAS_SIMD
#if FASTFLOAT_USE_SIMD
#if defined(__GNUC__)
// disable -Wcast-align=strict (GCC only)
#define FASTFLOAT_SIMD_DISABLE_WARNINGS \