1 //===- executionengine.go - Bindings for executionengine ------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines bindings for the executionengine component.
12 //===----------------------------------------------------------------------===//
17 #include "llvm-c/ExecutionEngine.h"
24 func LinkInMCJIT() { C.LLVMLinkInMCJIT() }
25 func LinkInInterpreter() { C.LLVMLinkInInterpreter() }
27 type GenericValue struct {
28 C C.LLVMGenericValueRef
30 type ExecutionEngine struct {
31 C C.LLVMExecutionEngineRef
34 type MCJITCompilerOptions struct {
35 C C.struct_LLVMMCJITCompilerOptions
38 func (options *MCJITCompilerOptions) SetMCJITOptimizationLevel(level uint) {
39 options.C.OptLevel = C.uint(level)
42 func (options *MCJITCompilerOptions) SetMCJITNoFramePointerElim(nfp bool) {
43 options.C.NoFramePointerElim = boolToLLVMBool(nfp)
46 func (options *MCJITCompilerOptions) SetMCJITEnableFastISel(fastisel bool) {
47 options.C.EnableFastISel = boolToLLVMBool(fastisel)
50 func (options *MCJITCompilerOptions) SetMCJITCodeModel(CodeModel CodeModel) {
51 options.C.CodeModel = C.LLVMCodeModel(CodeModel)
55 func llvmGenericValueRefPtr(t *GenericValue) *C.LLVMGenericValueRef {
56 return (*C.LLVMGenericValueRef)(unsafe.Pointer(t))
59 //-------------------------------------------------------------------------
61 //-------------------------------------------------------------------------
63 func NewGenericValueFromInt(t Type, n uint64, signed bool) (g GenericValue) {
64 g.C = C.LLVMCreateGenericValueOfInt(t.C, C.ulonglong(n), boolToLLVMBool(signed))
67 func NewGenericValueFromPointer(p unsafe.Pointer) (g GenericValue) {
68 g.C = C.LLVMCreateGenericValueOfPointer(p)
71 func NewGenericValueFromFloat(t Type, n float64) (g GenericValue) {
72 g.C = C.LLVMCreateGenericValueOfFloat(t.C, C.double(n))
75 func (g GenericValue) IntWidth() int { return int(C.LLVMGenericValueIntWidth(g.C)) }
76 func (g GenericValue) Int(signed bool) uint64 {
77 return uint64(C.LLVMGenericValueToInt(g.C, boolToLLVMBool(signed)))
79 func (g GenericValue) Float(t Type) float64 {
80 return float64(C.LLVMGenericValueToFloat(t.C, g.C))
82 func (g GenericValue) Pointer() unsafe.Pointer {
83 return C.LLVMGenericValueToPointer(g.C)
85 func (g GenericValue) Dispose() { C.LLVMDisposeGenericValue(g.C) }
87 //-------------------------------------------------------------------------
88 // llvm.ExecutionEngine
89 //-------------------------------------------------------------------------
91 func NewExecutionEngine(m Module) (ee ExecutionEngine, err error) {
93 fail := C.LLVMCreateExecutionEngineForModule(&ee.C, m.C, &cmsg)
96 err = errors.New(C.GoString(cmsg))
97 C.LLVMDisposeMessage(cmsg)
102 func NewInterpreter(m Module) (ee ExecutionEngine, err error) {
104 fail := C.LLVMCreateInterpreterForModule(&ee.C, m.C, &cmsg)
107 err = errors.New(C.GoString(cmsg))
108 C.LLVMDisposeMessage(cmsg)
113 func NewMCJITCompilerOptions() MCJITCompilerOptions {
114 var options C.struct_LLVMMCJITCompilerOptions
115 C.LLVMInitializeMCJITCompilerOptions(&options, C.size_t(unsafe.Sizeof(C.struct_LLVMMCJITCompilerOptions{})))
116 return MCJITCompilerOptions{options}
119 func NewMCJITCompiler(m Module, options MCJITCompilerOptions) (ee ExecutionEngine, err error) {
121 fail := C.LLVMCreateMCJITCompilerForModule(&ee.C, m.C, &options.C, C.size_t(unsafe.Sizeof(C.struct_LLVMMCJITCompilerOptions{})), &cmsg)
124 err = errors.New(C.GoString(cmsg))
125 C.LLVMDisposeMessage(cmsg)
130 func (ee ExecutionEngine) Dispose() { C.LLVMDisposeExecutionEngine(ee.C) }
131 func (ee ExecutionEngine) RunStaticConstructors() { C.LLVMRunStaticConstructors(ee.C) }
132 func (ee ExecutionEngine) RunStaticDestructors() { C.LLVMRunStaticDestructors(ee.C) }
134 func (ee ExecutionEngine) RunFunction(f Value, args []GenericValue) (g GenericValue) {
136 var argptr *GenericValue
140 g.C = C.LLVMRunFunction(ee.C, f.C,
141 C.unsigned(nargs), llvmGenericValueRefPtr(argptr))
145 func (ee ExecutionEngine) FreeMachineCodeForFunction(f Value) {
146 C.LLVMFreeMachineCodeForFunction(ee.C, f.C)
148 func (ee ExecutionEngine) AddModule(m Module) { C.LLVMAddModule(ee.C, m.C) }
150 func (ee ExecutionEngine) RemoveModule(m Module) {
151 var modtmp C.LLVMModuleRef
152 C.LLVMRemoveModule(ee.C, m.C, &modtmp, nil)
155 func (ee ExecutionEngine) FindFunction(name string) (f Value) {
156 cname := C.CString(name)
157 defer C.free(unsafe.Pointer(cname))
158 C.LLVMFindFunction(ee.C, cname, &f.C)
162 func (ee ExecutionEngine) RecompileAndRelinkFunction(f Value) unsafe.Pointer {
163 return C.LLVMRecompileAndRelinkFunction(ee.C, f.C)
166 func (ee ExecutionEngine) TargetData() (td TargetData) {
167 td.C = C.LLVMGetExecutionEngineTargetData(ee.C)
171 func (ee ExecutionEngine) AddGlobalMapping(global Value, addr unsafe.Pointer) {
172 C.LLVMAddGlobalMapping(ee.C, global.C, addr)
175 func (ee ExecutionEngine) PointerToGlobal(global Value) unsafe.Pointer {
176 return C.LLVMGetPointerToGlobal(ee.C, global.C)