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ctors: include implicit inputs/outputs

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This commit is contained in:
Michael McLoughlin
2018-12-02 21:12:56 -08:00
parent 82b31fa0da
commit 96a5c5fe1e
5 changed files with 160 additions and 141 deletions
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24
internal/gen/ctors.go
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@@ -22,6 +22,7 @@ func (c *ctors) Generate(is []inst.Instruction) ([]byte, error) {
c.Printf("package x86\n\n")
c.Printf("import (\n")
c.Printf("\t\"%s\"\n", pkg)
c.Printf("\t\"%s/reg\"\n", pkg)
c.Printf("\t\"%s/operand\"\n", pkg)
c.Printf(")\n\n")
@@ -39,7 +40,7 @@ func (c *ctors) instruction(i inst.Instruction) {
s := params(i)
c.Printf("func %s(%s) (*avo.Instruction, error) {\n", i.Opcode, s.ParameterList())
c.Printf("func %s(%s) (*%s, error) {\n", i.Opcode, s.ParameterList(), instType)
c.forms(i, s)
c.Printf("}\n\n")
}
@@ -78,14 +79,13 @@ func (c *ctors) forms(i inst.Instruction, s signature) {
func construct(i inst.Instruction, f inst.Form, s signature) string {
buf := bytes.NewBuffer(nil)
fmt.Fprintf(buf, "avo.Instruction{\n")
fmt.Fprintf(buf, "%s{\n", instType)
fmt.Fprintf(buf, "\tOpcode: %#v,\n", i.Opcode)
fmt.Fprintf(buf, "\tOperands: %s,\n", s.ParameterSlice())
// Input output.
// TODO(mbm): handle implicit operands
fmt.Fprintf(buf, "\tInputs: %s,\n", actionfilter(f.Operands, inst.R, s))
fmt.Fprintf(buf, "\tOutputs: %s,\n", actionfilter(f.Operands, inst.W, s))
fmt.Fprintf(buf, "\tInputs: %s,\n", operandsWithAction(f, inst.R, s))
fmt.Fprintf(buf, "\tOutputs: %s,\n", operandsWithAction(f, inst.W, s))
// Branch variables.
if i.IsBranch() {
@@ -97,17 +97,17 @@ func construct(i inst.Instruction, f inst.Form, s signature) string {
return buf.String()
}
func actionfilter(ops []inst.Operand, a inst.Action, s signature) string {
func operandsWithAction(f inst.Form, a inst.Action, s signature) string {
opexprs := []string{}
for i, op := range ops {
for i, op := range f.Operands {
if op.Action.Contains(a) {
opexprs = append(opexprs, s.ParameterName(i))
}
}
for _, op := range f.ImplicitOperands {
if op.Action.Contains(a) {
opexprs = append(opexprs, implicitRegister(op.Register))
}
}
return fmt.Sprintf("[]%s{%s}", operandType, strings.Join(opexprs, ", "))
}
// checkername returns the name of the function that checks an operand of type t.
func checkername(t string) string {
return "operand.Is" + strings.Title(t)
}