llvm-6502/include/llvm-c/LinkTimeOptimizer.h
Gregory Szorc 6244b51888 Organize LLVM C API docs into doxygen modules; add docs
This gives a lot of love to the docs for the C API. Like Clang's
documentation, the C API is now organized into a Doxygen "module"
(LLVMC). Each C header file is a child of the main module. Some modules
(like Core) have a hierarchy of there own. The produced documentation is
thus better organized (before everything was in one monolithic list).

This patch also includes a lot of new documentation for APIs in Core.h.
It doesn't document them all, but is better than none. Function docs are
missing @param and @return annotation, but the documentation body now
commonly provides help details (like the expected llvm::Value sub-type
to expect).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153157 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-21 03:54:29 +00:00

70 lines
1.9 KiB
C++

//===-- llvm/LinkTimeOptimizer.h - LTO Public 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 provides a C API to use the LLVM link time optimization
// library. This is intended to be used by linkers which are C-only in
// their implementation for performing LTO.
//
//===----------------------------------------------------------------------===//
#ifndef __LTO_CAPI_H__
#define __LTO_CAPI_H__
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup LLVMCLinkTimeOptimizer Link Time Optimization
* @ingroup LLVMC
*
* @{
*/
/// This provides a dummy type for pointers to the LTO object.
typedef void* llvm_lto_t;
/// This provides a C-visible enumerator to manage status codes.
/// This should map exactly onto the C++ enumerator LTOStatus.
typedef enum llvm_lto_status {
LLVM_LTO_UNKNOWN,
LLVM_LTO_OPT_SUCCESS,
LLVM_LTO_READ_SUCCESS,
LLVM_LTO_READ_FAILURE,
LLVM_LTO_WRITE_FAILURE,
LLVM_LTO_NO_TARGET,
LLVM_LTO_NO_WORK,
LLVM_LTO_MODULE_MERGE_FAILURE,
LLVM_LTO_ASM_FAILURE,
// Added C-specific error codes
LLVM_LTO_NULL_OBJECT
} llvm_lto_status_t;
/// This provides C interface to initialize link time optimizer. This allows
/// linker to use dlopen() interface to dynamically load LinkTimeOptimizer.
/// extern "C" helps, because dlopen() interface uses name to find the symbol.
extern llvm_lto_t llvm_create_optimizer(void);
extern void llvm_destroy_optimizer(llvm_lto_t lto);
extern llvm_lto_status_t llvm_read_object_file
(llvm_lto_t lto, const char* input_filename);
extern llvm_lto_status_t llvm_optimize_modules
(llvm_lto_t lto, const char* output_filename);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif