[DAGCombiner] Add target hook function to decide folding (mul (add x, c1), c2)
[llvm-project.git] / llvm / include / llvm-c / BitWriter.h
blobea84b6593d126109addf9f18a6543a33a89954ec
1 /*===-- llvm-c/BitWriter.h - BitWriter Library C Interface ------*- C++ -*-===*\
2 |* *|
3 |* Part of the LLVM Project, under the Apache License v2.0 with LLVM *|
4 |* Exceptions. *|
5 |* See https://llvm.org/LICENSE.txt for license information. *|
6 |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception *|
7 |* *|
8 |*===----------------------------------------------------------------------===*|
9 |* *|
10 |* This header declares the C interface to libLLVMBitWriter.a, which *|
11 |* implements output of the LLVM bitcode format. *|
12 |* *|
13 |* Many exotic languages can interoperate with C code but have a harder time *|
14 |* with C++ due to name mangling. So in addition to C, this interface enables *|
15 |* tools written in such languages. *|
16 |* *|
17 \*===----------------------------------------------------------------------===*/
19 #ifndef LLVM_C_BITWRITER_H
20 #define LLVM_C_BITWRITER_H
22 #include "llvm-c/ExternC.h"
23 #include "llvm-c/Types.h"
25 LLVM_C_EXTERN_C_BEGIN
27 /**
28 * @defgroup LLVMCBitWriter Bit Writer
29 * @ingroup LLVMC
31 * @{
34 /*===-- Operations on modules ---------------------------------------------===*/
36 /** Writes a module to the specified path. Returns 0 on success. */
37 int LLVMWriteBitcodeToFile(LLVMModuleRef M, const char *Path);
39 /** Writes a module to an open file descriptor. Returns 0 on success. */
40 int LLVMWriteBitcodeToFD(LLVMModuleRef M, int FD, int ShouldClose,
41 int Unbuffered);
43 /** Deprecated for LLVMWriteBitcodeToFD. Writes a module to an open file
44 descriptor. Returns 0 on success. Closes the Handle. */
45 int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int Handle);
47 /** Writes a module to a new memory buffer and returns it. */
48 LLVMMemoryBufferRef LLVMWriteBitcodeToMemoryBuffer(LLVMModuleRef M);
50 /**
51 * @}
54 LLVM_C_EXTERN_C_END
56 #endif