a fix to compiler-optimized code

microsoft · Aug 3, 2023 · 7966e24 · 7966e24
1 parent 0808ae7
commit 7966e24
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/fifo.cc b/src/fifo.cc
@@ -41,8 +41,9 @@ MSCCLPP_API_CPP Fifo::~Fifo() = default;
 
 MSCCLPP_API_CPP ProxyTrigger Fifo::poll() {
   ProxyTrigger trigger;
-  __m128i xmm0 = _mm_load_si128((__m128i*)&pimpl->triggers.get()[pimpl->hostTail % MSCCLPP_PROXY_FIFO_SIZE]);
-  _mm_store_si128((__m128i*)&trigger, xmm0);
+  volatile ProxyTrigger* ptr = &pimpl->triggers.get()[pimpl->hostTail % MSCCLPP_PROXY_FIFO_SIZE];
+  trigger.fst = ptr->fst;
+  trigger.snd = ptr->snd;
   return trigger;
 }