[LLVM-C] Add coroutine passes

Differential Revision: https://reviews.llvm.org/D50950

llvm-svn: 340147

2 files changed, 72 insertions, 0 deletions

diff --git a/llvm/include/llvm-c/Transforms/Coroutines.h b/llvm/include/llvm-c/Transforms/Coroutines.h
new file mode 100644
index 00000000000..827e30fb2d7
--- /dev/null
+++ b/llvm/include/llvm-c/Transforms/Coroutines.h
@@ -0,0 +1,55 @@
+/*===-- Coroutines.h - Coroutines Library C Interface -----------*- C++ -*-===*\
+|*                                                                            *|
+|*                     The LLVM Compiler Infrastructure                       *|
+|*                                                                            *|
+|* This file is distributed under the University of Illinois Open Source      *|
+|* License. See LICENSE.TXT for details.                                      *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* This header declares the C interface to libLLVMCoroutines.a, which         *|
+|* implements various scalar transformations of the LLVM IR.                  *|
+|*                                                                            *|
+|* Many exotic languages can interoperate with C code but have a harder time  *|
+|* with C++ due to name mangling. So in addition to C, this interface enables *|
+|* tools written in such languages.                                           *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef LLVM_C_TRANSFORMS_COROUTINES_H
+#define LLVM_C_TRANSFORMS_COROUTINES_H
+
+#include "llvm-c/Types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup LLVMCTransformsCoroutines Coroutine transformations
+ * @ingroup LLVMCTransforms
+ *
+ * @{
+ */
+
+/** See llvm::createCoroEarlyPass function. */
+void LLVMAddCoroEarlyPass(LLVMPassManagerRef PM);
+
+/** See llvm::createCoroSplitPass function. */
+void LLVMAddCoroSplitPass(LLVMPassManagerRef PM);
+
+/** See llvm::createCoroElidePass function. */
+void LLVMAddCoroElidePass(LLVMPassManagerRef PM);
+
+/** See llvm::createCoroCleanupPass function. */
+void LLVMAddCoroCleanupPass(LLVMPassManagerRef PM);
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif /* defined(__cplusplus) */
+
+#endif
diff --git a/llvm/lib/Transforms/Coroutines/Coroutines.cpp b/llvm/lib/Transforms/Coroutines/Coroutines.cpp
index 731faeb5dce..cf84f916e24 100644
--- a/llvm/lib/Transforms/Coroutines/Coroutines.cpp
+++ b/llvm/lib/Transforms/Coroutines/Coroutines.cpp
@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Transforms/Coroutines.h"
+#include "llvm-c/Transforms/Coroutines.h"
 #include "CoroInstr.h"
 #include "CoroInternal.h"
 #include "llvm/ADT/SmallVector.h"
@@ -344,3 +345,19 @@ void coro::Shape::buildFrom(Function &F) {
   for (CoroSaveInst *CoroSave : UnusedCoroSaves)
     CoroSave->eraseFromParent();
 }
+
+void LLVMAddCoroEarlyPass(LLVMPassManagerRef PM) {
+  unwrap(PM)->add(createCoroEarlyPass());
+}
+
+void LLVMAddCoroSplitPass(LLVMPassManagerRef PM) {
+  unwrap(PM)->add(createCoroSplitPass());
+}
+
+void LLVMAddCoroElidePass(LLVMPassManagerRef PM) {
+  unwrap(PM)->add(createCoroElidePass());
+}
+
+void LLVMAddCoroCleanupPass(LLVMPassManagerRef PM) {
+  unwrap(PM)->add(createCoroCleanupPass());
+}