cmd/compile: remove auxSymInt32

We never used it, might as well get rid of it.

Change-Id: I5c23c93e90173bff9ac1fc1b8ae1e2025215d6eb
Reviewed-on: https://go-review.googlesource.com/c/go/+/191938
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>

src/cmd/compile/internal/ssa/check.go

@@ -155,12 +155,6 @@ func checkFunc(f *Func) {
 			case auxSymOff, auxSymValAndOff, auxTypSize:
 				canHaveAuxInt = true
 				canHaveAux = true
-			case auxSymInt32:
-				if v.AuxInt != int64(int32(v.AuxInt)) {
-					f.Fatalf("bad int32 AuxInt value for %v", v)
-				}
-				canHaveAuxInt = true
-				canHaveAux = true
 			case auxCCop:
 				if _, ok := v.Aux.(Op); !ok {
 					f.Fatalf("bad type %T for CCop in %v", v.Aux, v)

src/cmd/compile/internal/ssa/gen/rulegen.go

@@ -908,14 +908,14 @@ func parseValue(val string, arch arch, loc string) (op opData, oparch, typ, auxi
 	// Sanity check aux, auxint.
 	if auxint != "" {
 		switch op.aux {
-		case "Bool", "Int8", "Int16", "Int32", "Int64", "Int128", "Float32", "Float64", "SymOff", "SymValAndOff", "SymInt32", "TypSize":
+		case "Bool", "Int8", "Int16", "Int32", "Int64", "Int128", "Float32", "Float64", "SymOff", "SymValAndOff", "TypSize":
 		default:
 			log.Fatalf("%s: op %s %s can't have auxint", loc, op.name, op.aux)
 		}
 	}
 	if aux != "" {
 		switch op.aux {
-		case "String", "Sym", "SymOff", "SymValAndOff", "SymInt32", "Typ", "TypSize", "CCop":
+		case "String", "Sym", "SymOff", "SymValAndOff", "Typ", "TypSize", "CCop":
 		default:
 			log.Fatalf("%s: op %s %s can't have aux", loc, op.name, op.aux)
 		}

src/cmd/compile/internal/ssa/op.go

@@ -83,8 +83,6 @@ const (
 	auxTyp                  // aux is a type
 	auxTypSize              // aux is a type, auxInt is a size, must have Aux.(Type).Size() == AuxInt
 	auxCCop                 // aux is a ssa.Op that represents a flags-to-bool conversion (e.g. LessThan)
-
-	auxSymInt32 // aux is a symbol, auxInt is a 32-bit integer
 )
 
 // A SymEffect describes the effect that an SSA Value has on the variable

src/cmd/compile/internal/ssa/value.go

@@ -183,7 +183,7 @@ func (v *Value) auxString() string {
 		if v.Aux != nil {
 			return fmt.Sprintf(" {%v}", v.Aux)
 		}
-	case auxSymOff, auxSymInt32, auxTypSize:
+	case auxSymOff, auxTypSize:
 		s := ""
 		if v.Aux != nil {
 			s = fmt.Sprintf(" {%v}", v.Aux)