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Add C wrappers for the LTO library (PR1081). Patch by Chandler Carruth!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32966 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2007-01-06 23:53:43 +00:00
parent 11fdadf407
commit ddc6f353c0
2 changed files with 124 additions and 0 deletions
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58
include/llvm-c/LinkTimeOptimizer.h Normal file
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//===-- llvm/LinkTimeOptimizer.h - LTO Public C Interface -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Chandler Carruth and 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 inteded 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
/// 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