2024-11-14 18:30:13 +08:00
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diff --git a/src/google/protobuf/parse_context.h b/src/google/protobuf/parse_context.h
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2024-11-20 10:55:42 +08:00
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index d40e71c1d..22ed8212d 100644
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2024-11-14 18:30:13 +08:00
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--- a/src/google/protobuf/parse_context.h
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+++ b/src/google/protobuf/parse_context.h
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2024-11-20 10:55:42 +08:00
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@@ -635,7 +635,7 @@ inline const char* VarintParseSlow(const char* p, uint32_t res, uint64_t* out) {
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2024-11-14 18:30:13 +08:00
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return tmp.first;
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}
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-#ifdef __aarch64__
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+#if defined(__aarch64__) && !defined(_MSC_VER)
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// Generally, speaking, the ARM-optimized Varint decode algorithm is to extract
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// and concatenate all potentially valid data bits, compute the actual length
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// of the Varint, and mask off the data bits which are not actually part of the
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2024-11-20 10:55:42 +08:00
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@@ -866,7 +866,7 @@ static const char* VarintParseSlowArm(const char* p, uint64_t* out,
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2024-11-14 18:30:13 +08:00
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// The caller must ensure that p points to at least 10 valid bytes.
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template <typename T>
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PROTOBUF_NODISCARD const char* VarintParse(const char* p, T* out) {
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-#if defined(__aarch64__) && defined(ABSL_IS_LITTLE_ENDIAN)
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+#if defined(__aarch64__) && defined(ABSL_IS_LITTLE_ENDIAN) && !defined(_MSC_VER)
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// This optimization is not supported in big endian mode
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uint64_t first8;
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std::memcpy(&first8, p, sizeof(first8));
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