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- //===-- 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 LLVM_C_LINKTIMEOPTIMIZER_H
- #define LLVM_C_LINKTIMEOPTIMIZER_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
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