commit aef87980a97ccd062ecf4815ed9d6c5c7e5684eb
author Mandeep Singh Grang <mgrang@codeaurora.org> Wed Oct 03 17:24:21 2018 +0000
committer Mandeep Singh Grang <mgrang@codeaurora.org> Wed Oct 03 17:24:21 2018 +0000
tree 9a800acfc413e6e19f3ba7626105c56f20b80e7d
parent d37782627772fe13927baa282276c0af591f2b75

[COFF, ARM64] Add _ReadWriteBarrier intrinsic

Reviewers: rnk, mstorsjo, compnerd, TomTan, haripul, javed.absar

Reviewed By: rnk

Subscribers: kristof.beyls, chrib, jfb, cfe-commits

Differential Revision: https://reviews.llvm.org/D52809

llvm-svn: 343699

clang/lib/CodeGen/CGBuiltin.cpp

diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index df71dbb..49c2b12 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -6581,6 +6581,10 @@
     return Builder.CreateCall(F);
   }
 
+  if (BuiltinID == AArch64::BI_ReadWriteBarrier)
+    return Builder.CreateFence(llvm::AtomicOrdering::SequentiallyConsistent,
+                               llvm::SyncScope::SingleThread);
+
   // CRC32
   Intrinsic::ID CRCIntrinsicID = Intrinsic::not_intrinsic;
   switch (BuiltinID) {