本文整理汇总了Golang中github.com/axw/gollvm/llvm.Value.BinaryOp方法的典型用法代码示例。如果您正苦于以下问题：Golang Value.BinaryOp方法的具体用法？Golang Value.BinaryOp怎么用？Golang Value.BinaryOp使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/axw/gollvm/llvm.Value的用法示例。
在下文中一共展示了Value.BinaryOp方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: BinaryOp
func (lhs *LLVMValue) BinaryOp(op token.Token, rhs_ Value) Value {
if op == token.NEQ {
result := lhs.BinaryOp(token.EQL, rhs_)
return result.UnaryOp(token.NOT)
}
var result llvm.Value
c := lhs.compiler
b := lhs.compiler.builder
// Later we can do better by treating constants specially. For now, let's
// convert to LLVMValue's.
var rhs *LLVMValue
rhsisnil := false
switch rhs_ := rhs_.(type) {
case *LLVMValue:
rhs = rhs_
case NilValue:
rhsisnil = true
switch rhs_ := rhs_.Convert(lhs.Type()).(type) {
case ConstValue:
rhs = c.NewLLVMValue(rhs_.LLVMValue(), rhs_.Type())
case *LLVMValue:
rhs = rhs_
}
case ConstValue:
value := rhs_.Convert(lhs.Type())
rhs = c.NewLLVMValue(value.LLVMValue(), value.Type())
}
switch typ := types.Underlying(lhs.typ).(type) {
case *types.Struct:
// TODO check types are the same.
element_types_count := lhs.LLVMValue().Type().StructElementTypesCount()
struct_fields := typ.Fields
if element_types_count > 0 {
t := c.ObjGetType(struct_fields[0])
first_lhs := c.NewLLVMValue(b.CreateExtractValue(lhs.LLVMValue(), 0, ""), t)
first_rhs := c.NewLLVMValue(b.CreateExtractValue(rhs.LLVMValue(), 0, ""), t)
first := first_lhs.BinaryOp(op, first_rhs)
logical_op := token.LAND
if op == token.NEQ {
logical_op = token.LOR
}
result := first
for i := 1; i < element_types_count; i++ {
t := c.ObjGetType(struct_fields[i])
next_lhs := c.NewLLVMValue(b.CreateExtractValue(lhs.LLVMValue(), i, ""), t)
next_rhs := c.NewLLVMValue(b.CreateExtractValue(rhs.LLVMValue(), i, ""), t)
next := next_lhs.BinaryOp(op, next_rhs)
result = result.BinaryOp(logical_op, next)
}
return result
}
case *types.Interface:
if rhsisnil {
valueNull := b.CreateIsNull(b.CreateExtractValue(lhs.LLVMValue(), 0, ""), "")
typeNull := b.CreateIsNull(b.CreateExtractValue(lhs.LLVMValue(), 1, ""), "")
result := b.CreateAnd(typeNull, valueNull, "")
return c.NewLLVMValue(result, types.Bool)
}
// TODO check for interface/interface comparison vs. interface/value comparison.
return lhs.compareI2I(rhs)
case *types.Slice:
// []T == nil
isnil := b.CreateIsNull(b.CreateExtractValue(lhs.LLVMValue(), 0, ""), "")
return c.NewLLVMValue(isnil, types.Bool)
}
// Strings.
if types.Underlying(lhs.typ) == types.String {
if types.Underlying(rhs.typ) == types.String {
switch op {
case token.ADD:
return c.concatenateStrings(lhs, rhs)
case token.EQL, token.LSS, token.GTR, token.LEQ, token.GEQ:
return c.compareStrings(lhs, rhs, op)
default:
panic(fmt.Sprint("Unimplemented operator: ", op))
}
}
panic("unimplemented")
}
// Determine whether to use integer or floating point instructions.
// TODO determine the NaN rules.
isfp := types.Identical(types.Underlying(lhs.typ), types.Float32) ||
types.Identical(types.Underlying(lhs.typ), types.Float64)
switch op {
case token.MUL:
if isfp {
result = b.CreateFMul(lhs.LLVMValue(), rhs.LLVMValue(), "")
} else {
result = b.CreateMul(lhs.LLVMValue(), rhs.LLVMValue(), "")
}
//.........这里部分代码省略.........
示例2: BinaryOp
func (lhs *LLVMValue) BinaryOp(op token.Token, rhs_ Value) Value {
if op == token.NEQ {
result := lhs.BinaryOp(token.EQL, rhs_)
return result.UnaryOp(token.NOT)
}
var result llvm.Value
c := lhs.compiler
b := lhs.compiler.builder
// Later we can do better by treating constants specially. For now, let's
// convert to LLVMValue's.
var rhs *LLVMValue
switch rhs_ := rhs_.(type) {
case *LLVMValue:
rhs = rhs_
case NilValue:
switch rhs_ := rhs_.Convert(lhs.Type()).(type) {
case ConstValue:
rhs = c.NewLLVMValue(rhs_.LLVMValue(), rhs_.Type())
case *LLVMValue:
rhs = rhs_
}
case ConstValue:
value := rhs_.Convert(lhs.Type())
rhs = c.NewLLVMValue(value.LLVMValue(), value.Type())
}
// Special case for structs.
// TODO handle strings as an even more special case.
if struct_type, ok := types.Underlying(lhs.typ).(*types.Struct); ok {
// TODO check types are the same.
element_types_count := lhs.LLVMValue().Type().StructElementTypesCount()
struct_fields := struct_type.Fields
if element_types_count > 0 {
t := c.ObjGetType(struct_fields[0])
first_lhs := c.NewLLVMValue(b.CreateExtractValue(lhs.LLVMValue(), 0, ""), t)
first_rhs := c.NewLLVMValue(b.CreateExtractValue(rhs.LLVMValue(), 0, ""), t)
first := first_lhs.BinaryOp(op, first_rhs)
logical_op := token.LAND
if op == token.NEQ {
logical_op = token.LOR
}
result := first
for i := 1; i < element_types_count; i++ {
t := c.ObjGetType(struct_fields[i])
next_lhs := c.NewLLVMValue(b.CreateExtractValue(lhs.LLVMValue(), i, ""), t)
next_rhs := c.NewLLVMValue(b.CreateExtractValue(rhs.LLVMValue(), i, ""), t)
next := next_lhs.BinaryOp(op, next_rhs)
result = result.BinaryOp(logical_op, next)
}
return result
}
}
// Interfaces.
if _, ok := types.Underlying(lhs.typ).(*types.Interface); ok {
// TODO check for interface/interface comparison vs. interface/value comparison.
// nil comparison
if /*rhs.LLVMValue().IsConstant() &&*/ rhs.LLVMValue().IsNull() {
var result llvm.Value
if op == token.EQL {
valueNull := b.CreateIsNull(b.CreateExtractValue(lhs.LLVMValue(), 0, ""), "")
typeNull := b.CreateIsNull(b.CreateExtractValue(lhs.LLVMValue(), 1, ""), "")
result = b.CreateAnd(typeNull, valueNull, "")
} else {
valueNotNull := b.CreateIsNotNull(b.CreateExtractValue(lhs.LLVMValue(), 0, ""), "")
typeNotNull := b.CreateIsNotNull(b.CreateExtractValue(lhs.LLVMValue(), 1, ""), "")
result = b.CreateOr(typeNotNull, valueNotNull, "")
}
return c.NewLLVMValue(result, types.Bool)
}
// First, check that the dynamic types are identical.
// FIXME provide runtime function for type identity comparison, and
// value comparisons.
lhsType := b.CreateExtractValue(lhs.LLVMValue(), 1, "")
rhsType := b.CreateExtractValue(rhs.LLVMValue(), 1, "")
diff := b.CreatePtrDiff(lhsType, rhsType, "")
zero := llvm.ConstNull(diff.Type())
var result llvm.Value
if op == token.EQL {
typesIdentical := b.CreateICmp(llvm.IntEQ, diff, zero, "")
//valuesEqual := ...
//result = b.CreateAnd(typesIdentical, valuesEqual, "")
result = typesIdentical
} else {
typesDifferent := b.CreateICmp(llvm.IntNE, diff, zero, "")
//valuesUnequal := ...
//result = b.CreateOr(typesDifferent, valuesUnequal, "")
result = typesDifferent
}
return c.NewLLVMValue(result, types.Bool)
}
//.........这里部分代码省略.........