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add new functions #68

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23 changes: 21 additions & 2 deletions executionengine.go
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Original file line number Diff line number Diff line change
Expand Up @@ -18,8 +18,10 @@ package llvm
#include <stdlib.h>
*/
import "C"
import "unsafe"
import "errors"
import (
"errors"
"unsafe"
)

func LinkInMCJIT() { C.LLVMLinkInMCJIT() }
func LinkInInterpreter() { C.LLVMLinkInInterpreter() }
Expand Down Expand Up @@ -110,6 +112,17 @@ func NewInterpreter(m Module) (ee ExecutionEngine, err error) {
return
}

func NewJITCompiler(m Module, optLevel int) (ee ExecutionEngine, err error) {
var cmsg *C.char
fail := C.LLVMCreateJITCompilerForModule(&ee.C, m.C, C.uint(optLevel), &cmsg)
if fail != 0 {
ee.C = nil
err = errors.New(C.GoString(cmsg))
C.LLVMDisposeMessage(cmsg)
}
return
}

func NewMCJITCompilerOptions() MCJITCompilerOptions {
var options C.struct_LLVMMCJITCompilerOptions
C.LLVMInitializeMCJITCompilerOptions(&options, C.size_t(unsafe.Sizeof(C.struct_LLVMMCJITCompilerOptions{})))
Expand Down Expand Up @@ -159,6 +172,12 @@ func (ee ExecutionEngine) FindFunction(name string) (f Value) {
return
}

func (ee ExecutionEngine) GetFunctionAddress(name string) uint64 {
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
return uint64(C.LLVMGetFunctionAddress(ee.C, cname))
}

func (ee ExecutionEngine) RecompileAndRelinkFunction(f Value) unsafe.Pointer {
return C.LLVMRecompileAndRelinkFunction(ee.C, f.C)
}
Expand Down
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