Files
avo/build/pseudo.go
Michael McLoughlin 816fa4c0e6 ast,build: allow setting data attributes
Previously GLOBL/DATA attributes are set to RODATA. This diff removes
that default and allows them to be set through the DataAttributes
context method.

Updates #2
2018-12-31 19:04:14 -08:00

54 lines
1.3 KiB
Go

package build
import (
"github.com/mmcloughlin/avo"
"github.com/mmcloughlin/avo/operand"
"github.com/mmcloughlin/avo/reg"
"github.com/mmcloughlin/avo/gotypes"
)
//go:generate avogen -output zmov.go mov
func (c *Context) Param(name string) gotypes.Component {
return c.activefunc().Signature.Params().Lookup(name)
}
func (c *Context) ParamIndex(i int) gotypes.Component {
return c.activefunc().Signature.Params().At(i)
}
func (c *Context) Return(name string) gotypes.Component {
return c.activefunc().Signature.Results().Lookup(name)
}
func (c *Context) ReturnIndex(i int) gotypes.Component {
return c.activefunc().Signature.Results().At(i)
}
func (c *Context) Load(src gotypes.Component, dst reg.Register) reg.Register {
b, err := src.Resolve()
if err != nil {
c.AddError(err)
return dst
}
c.mov(b.Addr, dst, int(gotypes.Sizes.Sizeof(b.Type)), int(dst.Bytes()), b.Type)
return dst
}
func (c *Context) Store(src reg.Register, dst gotypes.Component) {
b, err := dst.Resolve()
if err != nil {
c.AddError(err)
return
}
c.mov(src, b.Addr, int(src.Bytes()), int(gotypes.Sizes.Sizeof(b.Type)), b.Type)
}
func (c *Context) ConstData(name string, v operand.Constant) operand.Mem {
g := c.StaticGlobal(name)
c.DataAttributes(avo.RODATA | avo.NOPTR)
c.AppendDatum(v)
return g
}