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[to #50012708] eagerly init LLVM in PL LLVM helper

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This commit is contained in:
0xacc
2023-06-05 04:56:37 +00:00
committed by ob-robot
parent 121b93052a
commit 26aa25d647
2 changed files with 53 additions and 1 deletions
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1
src/objit/include/objit/ob_llvm_helper.h
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@ -449,6 +449,7 @@ public:
private:
int check_insert_point(bool &is_valid);
static int init_llvm();
private:
common::ObIAllocator &allocator_;

53
src/objit/src/ob_llvm_helper.cpp
View File

@ -22,6 +22,7 @@
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/DynamicLibrary.h"
#include "share/ob_define.h"
#include "objit/ob_llvm_helper.h"
#include "objit/ob_llvm_di_helper.h"
#include "lib/oblog/ob_log_module.h"
@ -52,6 +53,13 @@ typedef llvm::IRBuilder<> ObIRBuilder;
typedef llvm::Module ObIRModule;
typedef llvm::ExecutionEngine ObLLVMExecEngine;
#if !defined(__aarch64__)
namespace llvm {
struct X86MemoryFoldTableEntry;
extern const X86MemoryFoldTableEntry* lookupUnfoldTable(unsigned MemOp);
}
#endif
namespace oceanbase
{
using namespace common;
@ -521,10 +529,53 @@ void ObLLVMHelper::final()
int ObLLVMHelper::initialize()
{
int ret = OB_SUCCESS;
llvm::InitializeNativeTarget();
llvm::InitializeNativeTargetAsmPrinter();
llvm::InitializeNativeTargetAsmParser();
return OB_SUCCESS;
#if !defined(__aarch64__)
// initialize LLVM X86 unfold table
llvm::lookupUnfoldTable(0);
#endif
OZ (init_llvm());
return ret;
}
int ObLLVMHelper::init_llvm() {
int ret = OB_SUCCESS;
ObArenaAllocator alloc("PlJit", OB_MALLOC_NORMAL_BLOCK_SIZE, MTL_ID());
ObLLVMHelper helper(alloc);
ObLLVMDIHelper di_helper(alloc);
static char init_func_name[] = "pl_init_func";
OZ (helper.init());
OZ (di_helper.init(helper.get_jc()));
ObSEArray<ObLLVMType, 8> arg_types;
ObLLVMType int64_type;
ObLLVMFunction init_func;
ObLLVMFunctionType ft;
ObLLVMBasicBlock block;
ObLLVMValue magic;
OZ (helper.get_llvm_type(ObIntType, int64_type));
OZ (arg_types.push_back(int64_type));
OZ (ObLLVMFunctionType::get(int64_type, arg_types, ft));
OZ (helper.create_function(init_func_name, ft, init_func));
OZ (helper.create_block("entry", init_func, block));
OZ (helper.set_insert_point(block));
OZ (helper.get_int64(OB_SUCCESS, magic));
OZ (helper.create_ret(magic));
OX (helper.compile_module());
OX (helper.get_function_address(init_func_name));
return ret;
}
void ObLLVMHelper::compile_module(bool optimization)