[llvm-commits] CVS: llvm/include/llvm-c/LinkTimeOptimizer.h

[Chris Lattner]

Changes in directory llvm/include/llvm-c:

LinkTimeOptimizer.h added (r1.1)
---
Log message:

Add C wrappers for the LTO library (PR1081: http://llvm.org/PR1081 ).  Patch by Chandler Carruth!


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Diffs of the changes:  (+58 -0)

 LinkTimeOptimizer.h |   58 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 58 insertions(+)


Index: llvm/include/llvm-c/LinkTimeOptimizer.h
diff -c /dev/null llvm/include/llvm-c/LinkTimeOptimizer.h:1.1
*** /dev/null	Sat Jan  6 17:52:56 2007
--- llvm/include/llvm-c/LinkTimeOptimizer.h	Sat Jan  6 17:52:46 2007
***************
*** 0 ****
--- 1,58 ----
+ //===-- 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