R600/SI: Using SGPRs is illegal for instructions that read carry-out from VCC

[oota-llvm.git] / lib / Support / Threading.cpp

diff --git a/lib/Support/Threading.cpp b/lib/Support/Threading.cpp
index 15dd8a980523a65a10472f0af3fbc673376585e6..9d7ac6c18deb7db208265a7e116a0f0131486578 100644 (file)
--- a/lib/Support/Threading.cpp
+++ b/lib/Support/Threading.cpp
@@ -13,8 +13,8 @@
 
 #include "llvm/Support/Threading.h"
 #include "llvm/Config/config.h"
+#include "llvm/Support/Atomic.h"
 #include "llvm/Support/Mutex.h"
-#include <atomic>
 #include <cassert>
 
 using namespace llvm;
@@ -31,7 +31,7 @@ bool llvm::llvm_start_multithreaded() {
 
   // We fence here to ensure that all initialization is complete BEFORE we
   // return from llvm_start_multithreaded().
-  std::atomic_thread_fence(std::memory_order_seq_cst);
+  sys::MemoryFence();
   return true;
 #else
   return false;
@@ -44,7 +44,7 @@ void llvm::llvm_stop_multithreaded() {
 
   // We fence here to insure that all threaded operations are complete BEFORE we
   // return from llvm_stop_multithreaded().
-  std::atomic_thread_fence(std::memory_order_seq_cst);
+  sys::MemoryFence();
 
   multithreaded_mode = false;
   delete global_lock;