From 4a888364c4169b12fd870e01c7b9b3cac0a4dd70 Mon Sep 17 00:00:00 2001
From: Taylor Lee <taylor.lee@intel.com>
Date: Wed, 17 Mar 2021 13:01:18 +0900
Subject: [PATCH] Released writeSpirv from locking, too.

---
 common_clang.cpp | 89 ++++++++++++++++++++++++------------------------
 1 file changed, 44 insertions(+), 45 deletions(-)

diff --git a/common_clang.cpp b/common_clang.cpp
index d085cd2c..2a70d170 100644
--- a/common_clang.cpp
+++ b/common_clang.cpp
@@ -294,53 +294,52 @@ Compile(const char *pszProgramSource, const char **pInputHeaders,
       success = clang::ExecuteCompilerInvocation(compiler.get());
     } catch (const std::exception &) {
     }
-    {
-      llvm::sys::SmartScopedLock<true> compileGuard {*compileMutex};
-      pResult->setIRType(IR_TYPE_COMPILED_OBJECT);
-      pResult->setIRName(optionsParser.getSourceName());
-
-      // Our error handler depends on the Diagnostics object, which we're
-      // potentially about to delete. Uninstall the handler now so that any
-      // later errors use the default handling behavior instead.
-      // (currently commented out since setting the llvm error handling in
-      // multi-threaded environment is unsupported)
-      // llvm::remove_fatal_error_handler();
-      err_ostream.flush();
-
-      if (success && (optionsParser.hasEmitSPIRV() || optionsParser.hasEmitSPIRVText())) {
-        // Translate LLVM IR to SPIR-V.
-        if (optionsParser.hasEmitSPIRVText())
-          SPIRV::SPIRVUseTextFormat = true;
-        llvm::StringRef LLVM_IR(static_cast<const char*>(pResult->GetIR()),
-            pResult->GetIRSize());
-        std::unique_ptr<llvm::MemoryBuffer> MB = llvm::MemoryBuffer::getMemBuffer(LLVM_IR, pResult->GetIRName(), false);
-        llvm::LLVMContext Context;
-        auto E = llvm::getOwningLazyBitcodeModule(std::move(MB), Context,
-            /*ShouldLazyLoadMetadata=*/true);
-        llvm::logAllUnhandledErrors(E.takeError(), err_ostream, "error: ");
-        std::unique_ptr<llvm::Module> M = std::move(*E);
-
-        if (M->materializeAll()) {
-          if (pBinaryResult) {
-            *pBinaryResult = nullptr;
-          }
-          assert(!"Failed to read just compiled LLVM IR!");
-          return CL_COMPILE_PROGRAM_FAILURE;
-        }
-        pResult->getIRBufferRef().clear();
-        SmallVectorBuffer StreamBuf(pResult->getIRBufferRef());
-        std::ostream OS(&StreamBuf);
-        std::string Err;
-        SPIRV::TranslatorOpts SPIRVOpts;
-        SPIRVOpts.enableAllExtensions();
-        if (!optionsParser.hasOptDisable()) {
-          SPIRVOpts.setMemToRegEnabled(true);
+    pResult->setIRType(IR_TYPE_COMPILED_OBJECT);
+    pResult->setIRName(optionsParser.getSourceName());
+
+    // Our error handler depends on the Diagnostics object, which we're
+    // potentially about to delete. Uninstall the handler now so that any
+    // later errors use the default handling behavior instead.
+    // (currently commented out since setting the llvm error handling in
+    // multi-threaded environment is unsupported)
+    // llvm::remove_fatal_error_handler();
+    err_ostream.flush();
+
+    if (success && (optionsParser.hasEmitSPIRV() || optionsParser.hasEmitSPIRVText())) {
+      // Translate LLVM IR to SPIR-V.
+      if (optionsParser.hasEmitSPIRVText())
+        SPIRV::SPIRVUseTextFormat = true;
+      llvm::StringRef LLVM_IR(static_cast<const char*>(pResult->GetIR()),
+          pResult->GetIRSize());
+      std::unique_ptr<llvm::MemoryBuffer> MB = llvm::MemoryBuffer::getMemBuffer(LLVM_IR, pResult->GetIRName(), false);
+      llvm::LLVMContext Context;
+      auto E = llvm::getOwningLazyBitcodeModule(std::move(MB), Context,
+          /*ShouldLazyLoadMetadata=*/true);
+      llvm::logAllUnhandledErrors(E.takeError(), err_ostream, "error: ");
+      std::unique_ptr<llvm::Module> M = std::move(*E);
+
+      if (M->materializeAll()) {
+        if (pBinaryResult) {
+          *pBinaryResult = nullptr;
         }
-        success = llvm::writeSpirv(M.get(), SPIRVOpts, OS, Err);
-        err_ostream << Err.c_str();
-        err_ostream.flush();
+        assert(!"Failed to read just compiled LLVM IR!");
+        return CL_COMPILE_PROGRAM_FAILURE;
       }
-
+      pResult->getIRBufferRef().clear();
+      SmallVectorBuffer StreamBuf(pResult->getIRBufferRef());
+      std::ostream OS(&StreamBuf);
+      std::string Err;
+      SPIRV::TranslatorOpts SPIRVOpts;
+      SPIRVOpts.enableAllExtensions();
+      if (!optionsParser.hasOptDisable()) {
+        SPIRVOpts.setMemToRegEnabled(true);
+      }
+      success = llvm::writeSpirv(M.get(), SPIRVOpts, OS, Err);
+      err_ostream << Err.c_str();
+      err_ostream.flush();
+    }
+    {
+      llvm::sys::SmartScopedLock<true> compileGuard {*compileMutex};
       if (pBinaryResult) {
         *pBinaryResult = pResult.release();
       }