mirror of
https://github.com/microsoft/vcpkg.git
synced 2024-12-04 05:19:01 +08:00
45 lines
1.6 KiB
Diff
45 lines
1.6 KiB
Diff
From c4ce8509d015a0b75cfa9d36609b8409821a9c86 Mon Sep 17 00:00:00 2001
|
|
From: Matt Borland <matt@mattborland.com>
|
|
Date: Fri, 11 Aug 2023 09:20:47 -0400
|
|
Subject: [PATCH 1/2] Fix use of intrinsics on windows ARM platforms
|
|
|
|
---
|
|
.../json/detail/charconv/detail/emulated128.hpp | 12 ++++++++----
|
|
1 file changed, 8 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/include/boost/json/detail/charconv/detail/emulated128.hpp b/include/boost/json/detail/charconv/detail/emulated128.hpp
|
|
index 3a1a392..6eadbc7 100644
|
|
--- a/include/boost/json/detail/charconv/detail/emulated128.hpp
|
|
+++ b/include/boost/json/detail/charconv/detail/emulated128.hpp
|
|
@@ -58,11 +58,15 @@ struct uint128
|
|
|
|
static inline std::uint64_t umul64(std::uint32_t x, std::uint32_t y) noexcept
|
|
{
|
|
-#if defined(BOOST_JSON_HAS_MSVC_32BIT_INTRINSICS)
|
|
+ #if defined(BOOST_JSON_HAS_MSVC_32BIT_INTRINSICS) && !defined(_M_ARM64)
|
|
+
|
|
return __emulu(x, y);
|
|
-#else
|
|
+
|
|
+ #else
|
|
+
|
|
return x * static_cast<std::uint64_t>(y);
|
|
-#endif
|
|
+
|
|
+ #endif
|
|
}
|
|
|
|
// Get 128-bit result of multiplication of two 64-bit unsigned integers.
|
|
@@ -73,7 +77,7 @@ BOOST_JSON_SAFEBUFFERS inline uint128 umul128(std::uint64_t x, std::uint64_t y)
|
|
auto result = static_cast<boost::uint128_type>(x) * static_cast<boost::uint128_type>(y);
|
|
return {static_cast<std::uint64_t>(result >> 64), static_cast<std::uint64_t>(result)};
|
|
|
|
- #elif defined(BOOST_JSON_HAS_MSVC_64BIT_INTRINSICS)
|
|
+ #elif defined(BOOST_JSON_HAS_MSVC_64BIT_INTRINSICS) && !defined(_M_ARM64)
|
|
|
|
std::uint64_t high;
|
|
std::uint64_t low = _umul128(x, y, &high);
|
|
--
|
|
2.38.1.windows.1
|
|
|