[Orc] Re-add C bindings for the Orc APIs, with a fix to remove the union that

was causing builder failures.

The bindings were originally added in r251472, and reverted in r251473 due to
the builder failures.

llvm-svn: 251482

1 files changed, 47 insertions, 0 deletions

diff --git a/llvm/lib/ExecutionEngine/Orc/OrcCBindingsStack.cpp b/llvm/lib/ExecutionEngine/Orc/OrcCBindingsStack.cpp
new file mode 100644
index 00000000000..93c698da104
--- /dev/null
+++ b/llvm/lib/ExecutionEngine/Orc/OrcCBindingsStack.cpp
@@ -0,0 +1,47 @@
+//===-------- OrcCBindingsStack.cpp - Orc JIT stack for C bindings --------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "OrcCBindingsStack.h"
+
+#include "llvm/ExecutionEngine/Orc/OrcTargetSupport.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/DynamicLibrary.h"
+#include <cstdio>
+#include <system_error>
+
+using namespace llvm;
+
+OrcCBindingsStack::CallbackManagerBuilder
+OrcCBindingsStack::createCallbackManagerBuilder(Triple T) {
+  switch (T.getArch()) {
+    default: return nullptr;
+
+    case Triple::x86_64: {
+      typedef orc::JITCompileCallbackManager<CompileLayerT,
+                                             orc::OrcX86_64> CCMgrT;
+      return [](CompileLayerT &CompileLayer, RuntimeDyld::MemoryManager &MemMgr,
+                LLVMContext &Context) {
+               return llvm::make_unique<CCMgrT>(CompileLayer, MemMgr, Context, 0,
+                                                64);
+             };
+    }
+  }
+}
+
+OrcCBindingsStack::IndirectStubsManagerBuilder
+OrcCBindingsStack::createIndirectStubsMgrBuilder(Triple T) {
+  switch (T.getArch()) {
+    default: return nullptr;
+
+    case Triple::x86_64:
+      return [](){
+        return llvm::make_unique<orc::IndirectStubsManager<orc::OrcX86_64>>();
+      };
+  }
+}