leveldb: Fix compilation warnings in port_posix_sse.cc on x86 (32-bit).
LE_LOAD64 is only used when _mm_crc32_u64 is available, on 64-bit x86 processors.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148906169
diff --git a/port/port_posix_sse.cc b/port/port_posix_sse.cc
index 57ec8fe..1e519ba 100644
--- a/port/port_posix_sse.cc
+++ b/port/port_posix_sse.cc
@@ -37,6 +37,8 @@
return word;
}
+#if defined(_M_X64) || defined(__x86_64__) // LE_LOAD64 is only used on x64.
+
// Used to fetch a naturally-aligned 64-bit word in little endian byte-order
static inline uint64_t LE_LOAD64(const uint8_t *p) {
uint64_t dword;
@@ -44,6 +46,8 @@
return dword;
}
+#endif // defined(_M_X64) || defined(__x86_64__)
+
static inline bool HaveSSE42() {
#if defined(_MSC_VER)
int cpu_info[4];
