Example #1
0
File: debug.go Project: minux/llgo
func (d *debugInfo) setLocation(b llvm.Builder, pos token.Pos) {
	position := d.Fset.Position(pos)
	b.SetCurrentDebugLocation(llvm.MDNode([]llvm.Value{
		llvm.ConstInt(llvm.Int32Type(), uint64(position.Line), true),
		llvm.ConstInt(llvm.Int32Type(), uint64(position.Column), true),
		d.MDNode(d.context()),
		llvm.Value{},
	}))
}
Example #2
0
File: debug.go Project: minux/llgo
// declare creates an llvm.dbg.declare call for the specified function
// parameter or local variable.
func (d *debugInfo) declare(b llvm.Builder, v ssa.Value, llv llvm.Value, paramIndex int) {
	tag := tagAutoVariable
	if paramIndex >= 0 {
		tag = tagArgVariable
	}
	ld := debug.NewLocalVariableDescriptor(tag)
	ld.Argument = uint32(paramIndex + 1)
	ld.Name = llv.Name()
	if file := d.Fset.File(v.Pos()); file != nil {
		ld.Line = uint32(file.Position(v.Pos()).Line)
		ld.File = &d.getCompileUnit(file).Path
	}
	ld.Type = d.TypeDebugDescriptor(deref(v.Type()))
	ld.Context = d.context()
	b.InsertDeclare(d.module, llvm.MDNode([]llvm.Value{llv}), d.MDNode(ld))
}
Example #3
0
File: coerce.go Project: minux/llgo
// coerce yields a value of the the type specified, initialised
// to the exact bit pattern as in the specified value.
//
// Note: the value's type and the specified target type must have
// the same size. If the source is an aggregate, then the target
// must also be an aggregate with the same number of fields, each
// of which must have the same size.
func coerce(b llvm.Builder, v llvm.Value, t llvm.Type) llvm.Value {
	// FIXME don't do this with alloca
	switch t.TypeKind() {
	case llvm.ArrayTypeKind, llvm.StructTypeKind:
		ptr := b.CreateAlloca(t, "")
		ptrv := b.CreateBitCast(ptr, llvm.PointerType(v.Type(), 0), "")
		b.CreateStore(v, ptrv)
		return b.CreateLoad(ptr, "")
	}
	vt := v.Type()
	switch vt.TypeKind() {
	case llvm.ArrayTypeKind, llvm.StructTypeKind:
		ptr := b.CreateAlloca(vt, "")
		b.CreateStore(v, ptr)
		ptrt := b.CreateBitCast(ptr, llvm.PointerType(t, 0), "")
		return b.CreateLoad(ptrt, "")
	}
	return b.CreateBitCast(v, t, "")
}