Fix Windows build.

Author: Maxim Egorushkin

include/atomic_queue/defs.h

@@ -42,25 +42,6 @@ ATOMIC_QUEUE_INLINE static void spin_loop_pause() noexcept {
     _mm_pause();
 }
 
-// RDTSCP is not a serializing instruction, but it does wait until all previous instructions have executed and all previous loads are globally visible.
-using cycles_t = decltype(__builtin_ia32_rdtscp(0));
-
-ATOMIC_QUEUE_INLINE static cycles_t cycles_start() noexcept {
-    unsigned tsc_aux;
-    auto t0 = __builtin_ia32_rdtscp(&tsc_aux);
-    // If software requires RDTSCP to be executed prior to execution of any subsequent instruction (including any memory accesses), it can execute LFENCE immediately after RDTSCP.
-    _mm_lfence();
-    return t0;
-}
-
-ATOMIC_QUEUE_INLINE static cycles_t cycles_end() noexcept {
-    // If software requires RDTSCP to be executed only after all previous stores are globally visible, it can execute MFENCE immediately before RDTSCP.
-    _mm_mfence();
-    // RDTSCP is not a serializing instruction, but it does wait until all previous instructions have executed and all previous loads are globally visible.
-    unsigned tsc_aux;
-    return __builtin_ia32_rdtscp(&tsc_aux);
-}
-
 #elif defined(__arm__) || defined(__aarch64__) || defined(_M_ARM64)
 /*
 TODO:

src/benchmarks.cc

@@ -54,6 +54,25 @@ static_assert(std::is_unsigned<cycles_t>::value);
 using icycles_t = std::make_signed<cycles_t>::type; // Signed integers convert into double with one AVX instruction, unlike unsigned.
 cycles_t constexpr CYCLES_MAX = -1;
 
+// RDTSCP is not a serializing instruction, but it does wait until all previous instructions have executed and all previous loads are globally visible.
+using cycles_t = decltype(__builtin_ia32_rdtscp(0));
+
+ATOMIC_QUEUE_INLINE static cycles_t cycles_start() noexcept {
+    unsigned tsc_aux;
+    auto t0 = __builtin_ia32_rdtscp(&tsc_aux);
+    // If software requires RDTSCP to be executed prior to execution of any subsequent instruction (including any memory accesses), it can execute LFENCE immediately after RDTSCP.
+    _mm_lfence();
+    return t0;
+}
+
+ATOMIC_QUEUE_INLINE static cycles_t cycles_end() noexcept {
+    // If software requires RDTSCP to be executed only after all previous stores are globally visible, it can execute MFENCE immediately before RDTSCP.
+    _mm_mfence();
+    // RDTSCP is not a serializing instruction, but it does wait until all previous instructions have executed and all previous loads are globally visible.
+    unsigned tsc_aux;
+    return __builtin_ia32_rdtscp(&tsc_aux);
+}
+
 double TSC_TO_SECONDS = 0; // Set in main.
 
 ATOMIC_QUEUE_INLINE double to_seconds(icycles_t cycles) noexcept {