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Add lto version check mechanism.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45238 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2007-12-20 00:24:01 +00:00
parent 1475142b93
commit e3611871cb
2 changed files with 7 additions and 2 deletions
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4
include/llvm/LinkTimeOptimizer.h
View File

@ -20,6 +20,8 @@
#include <set>
#include <llvm/ADT/hash_map>
#define LLVM_LTO_VERSION 1
namespace llvm {
class Module;
@ -148,6 +150,6 @@ namespace llvm {
/// linker to use dlopen() interface to dynamically load LinkTimeOptimizer.
/// extern "C" helps, because dlopen() interface uses name to find the symbol.
extern "C"
llvm::LinkTimeOptimizer *createLLVMOptimizer();
llvm::LinkTimeOptimizer *createLLVMOptimizer(unsigned VERSION = LLVM_LTO_VERSION);
#endif

5
tools/lto/lto.cpp
View File

@ -45,8 +45,11 @@
using namespace llvm;
extern "C"
llvm::LinkTimeOptimizer *createLLVMOptimizer()
llvm::LinkTimeOptimizer *createLLVMOptimizer(unsigned VERSION)
{
if (VERSION != LLVM_LTO_VERSION)
return NULL;
llvm::LTO *l = new llvm::LTO();
return l;
}