commit 5fb520810efe7b3dc193ed2ff5232374355b7fb7
author bjacob <benoitjacob@google.com> Fri Mar 18 16:00:33 2022 -0400
committer GitHub <noreply@github.com> Fri Mar 18 13:00:33 2022 -0700
tree c296961c3d9015c0ca0eda8349d77488bc85e017
parent 924731773b0a15a06750a5ded7a03a74f11d91a5

fix data race in HALDispatchABI::getProcessorType (#8590)

iree/compiler/Codegen/LLVMCPU/ConvertToLLVM.cpp

diff --git a/iree/compiler/Codegen/LLVMCPU/ConvertToLLVM.cpp b/iree/compiler/Codegen/LLVMCPU/ConvertToLLVM.cpp
index dc74bea..12963e1 100644
--- a/iree/compiler/Codegen/LLVMCPU/ConvertToLLVM.cpp
+++ b/iree/compiler/Codegen/LLVMCPU/ConvertToLLVM.cpp
@@ -12,6 +12,7 @@
 #include "iree/compiler/Dialect/Util/IR/UtilDialect.h"
 #include "iree/compiler/Dialect/Util/IR/UtilOps.h"
 #include "llvm/ADT/Triple.h"
+#include "llvm/Support/Mutex.h"
 #include "llvm/Support/raw_ostream.h"
 #include "mlir/Analysis/DataLayoutAnalysis.h"
 #include "mlir/Conversion/AffineToStandard/AffineToStandard.h"
@@ -74,6 +75,8 @@
   // Returns a Type representing iree_hal_processor_v0_t.
   static LLVM::LLVMStructType getProcessorType(
       MLIRContext *context, LLVMTypeConverter *typeConverter) {
+    static llvm::sys::Mutex mutex;
+    llvm::sys::ScopedLock lock(mutex);
     auto structType =
         LLVM::LLVMStructType::getIdentified(context, "iree_hal_processor_v0_t");
     if (structType.isInitialized()) return structType;