From ae3a15d33105495cbcb403a0c87d9b56cfe2cc5b Mon Sep 17 00:00:00 2001
From: foreman <dl.constructicon@amd.com>
Date: Thu, 19 Mar 2015 20:50:35 -0400
Subject: [PATCH] P4 to Git Change 1132635 by smekhano@stas-rampitec-hsa on
 2015/03/19 17:27:36

	ECR #333753 - part of the changes to use llvm 3.6
	Testing: smoke, precheckin
	Reviewed by Brian Sumner

Affected files ...

... //depot/stg/opencl/drivers/opencl/compiler/lib/api/v0_8/acl.cpp#27 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/linker.cpp#122 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/sync.cpp#1 add
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/sync.hpp#1 add
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/v0_8/if_acl.cpp#63 edit


[ROCm/clr commit: 7168d2421085ece455bb7de618b6e0319d8f357d]
---
 .../compiler/lib/backends/common/linker.cpp   |  6 ++---
 .../compiler/lib/backends/common/sync.cpp     | 24 +++++++++++++++++++
 .../compiler/lib/backends/common/sync.hpp     | 13 ++++++++++
 .../lib/backends/common/v0_8/if_acl.cpp       |  5 ++--
 4 files changed, 42 insertions(+), 6 deletions(-)
 create mode 100644 projects/clr/rocclr/compiler/lib/backends/common/sync.cpp
 create mode 100644 projects/clr/rocclr/compiler/lib/backends/common/sync.hpp

diff --git a/projects/clr/rocclr/compiler/lib/backends/common/linker.cpp b/projects/clr/rocclr/compiler/lib/backends/common/linker.cpp
index c8e5bc1429..99d15def97 100644
--- a/projects/clr/rocclr/compiler/lib/backends/common/linker.cpp
+++ b/projects/clr/rocclr/compiler/lib/backends/common/linker.cpp
@@ -115,8 +115,7 @@ using namespace llvm;
 inline llvm::Module*
   LoadFile(const std::string &Filename, LLVMContext& Context)
   {
-    bool Exists;
-    if (sys::fs::exists(Filename, Exists) || !Exists) {
+    if (!sys::fs::exists(Filename)) {
       //    dbgs() << "Bitcode file: '" << Filename.c_str() << "' does not exist.\n";
       return 0;
     }
@@ -137,8 +136,7 @@ inline llvm::Module*
 
 inline llvm::Module*
   LoadLibrary(const std::string& libFile, LLVMContext& Context, MemoryBuffer** Buffer) {
-    bool Exists;
-    if (sys::fs::exists(libFile, Exists) || !Exists) {
+    if (!sys::fs::exists(libFile)) {
       //    dbgs() << "Bitcode file: '" << Filename.c_str() << "' does not exist.\n";
       return 0;
     }
diff --git a/projects/clr/rocclr/compiler/lib/backends/common/sync.cpp b/projects/clr/rocclr/compiler/lib/backends/common/sync.cpp
new file mode 100644
index 0000000000..45183fea6e
--- /dev/null
+++ b/projects/clr/rocclr/compiler/lib/backends/common/sync.cpp
@@ -0,0 +1,24 @@
+//
+// Copyright (c) 2008 Advanced Micro Devices, Inc. All rights reserved.
+//
+#include "sync.hpp"
+#include "llvm/Support/Mutex.h"
+#include "llvm/Support/Threading.h"
+
+
+static llvm::sys::MutexImpl mtx;
+
+namespace amdcl
+{
+
+void acquire_global_lock() {
+  if (llvm::llvm_is_multithreaded())
+    mtx.acquire();
+}
+
+void release_global_lock() {
+  if (llvm::llvm_is_multithreaded())
+    mtx.release();
+}
+
+} // namespace amdcl
diff --git a/projects/clr/rocclr/compiler/lib/backends/common/sync.hpp b/projects/clr/rocclr/compiler/lib/backends/common/sync.hpp
new file mode 100644
index 0000000000..1d62a81934
--- /dev/null
+++ b/projects/clr/rocclr/compiler/lib/backends/common/sync.hpp
@@ -0,0 +1,13 @@
+//
+// Copyright (c) 2008 Advanced Micro Devices, Inc. All rights reserved.
+//
+#ifndef _BE_SYNC_HPP_
+#define _BE_SYNC_HPP_
+
+namespace amdcl
+{
+  void acquire_global_lock();
+
+  void release_global_lock();
+} // namespace amdcl
+#endif // _BE_SYNC_HPP_
diff --git a/projects/clr/rocclr/compiler/lib/backends/common/v0_8/if_acl.cpp b/projects/clr/rocclr/compiler/lib/backends/common/v0_8/if_acl.cpp
index e7329678a6..ad666fe39a 100644
--- a/projects/clr/rocclr/compiler/lib/backends/common/v0_8/if_acl.cpp
+++ b/projects/clr/rocclr/compiler/lib/backends/common/v0_8/if_acl.cpp
@@ -31,6 +31,7 @@
 #include "utils/options.hpp"
 #include "utils/target_mappings.h"
 #include "utils/versions.hpp"
+#include "sync.hpp"
 
 #include "llvm/LLVMContext.h"
 #include "llvm/Analysis/Passes.h"
@@ -55,7 +56,7 @@ aclLoaderData * ACL_API_ENTRY
 if_aclCompilerInit(aclCompiler *cl, aclBinary *bin,
     aclLogFunction log, acl_error *error)
 {
-  llvm::llvm_acquire_global_lock();
+  amdcl::acquire_global_lock();
   char* timing = ::getenv("AMD_DEBUG_HLC_ENABLE_TIMING");
   if (timing && (timing[0] == '1')) 
      llvm::TimePassesIsEnabled = true;
@@ -85,7 +86,7 @@ if_aclCompilerInit(aclCompiler *cl, aclBinary *bin,
   llvm::initializeVerifierPass(Registry);
   llvm::initializeDominatorTreePass(Registry);
   llvm::initializePreVerifierPass(Registry);
-  llvm::llvm_release_global_lock();
+  amdcl::release_global_lock();
   if (error) (*error) = ACL_SUCCESS;
   return reinterpret_cast<aclLoaderData*>(cl);
 }