remove dead code in VM (#21296)

remove deadcode in VM

compiler/ast.nim

@@ -706,7 +706,7 @@ type
     mNctPut, mNctLen, mNctGet, mNctHasNext, mNctNext,
 
     mNIntVal, mNFloatVal, mNSymbol, mNIdent, mNGetType, mNStrVal, mNSetIntVal,
-    mNSetFloatVal, mNSetSymbol, mNSetIdent, mNSetType, mNSetStrVal, mNLineInfo,
+    mNSetFloatVal, mNSetSymbol, mNSetIdent, mNSetStrVal, mNLineInfo,
     mNNewNimNode, mNCopyNimNode, mNCopyNimTree, mStrToIdent, mNSigHash, mNSizeOf,
     mNBindSym, mNCallSite,
     mEqIdent, mEqNimrodNode, mSameNodeType, mGetImpl, mNGenSym,

compiler/vm.nim

@@ -2071,12 +2071,6 @@ proc rawExecute(c: PCtx, start: int, tos: PStackFrame): TFullReg =
         dest.ident = regs[rb].node.ident
       else:
         stackTrace(c, tos, pc, errFieldXNotFound & "ident")
-    of opcNSetType:
-      decodeB(rkNode)
-      let b = regs[rb].node
-      internalAssert c.config, b.kind == nkSym and b.sym.kind == skType
-      internalAssert c.config, regs[ra].node != nil
-      regs[ra].node.typ = b.sym.typ
     of opcNSetStrVal:
       decodeB(rkNode)
       var dest = regs[ra].node

compiler/vmdef.nim

@@ -127,7 +127,7 @@ type
     opcNGetSize,
 
     opcNSetIntVal,
-    opcNSetFloatVal, opcNSetSymbol, opcNSetIdent, opcNSetType, opcNSetStrVal,
+    opcNSetFloatVal, opcNSetSymbol, opcNSetIdent, opcNSetStrVal,
     opcNNewNimNode, opcNCopyNimNode, opcNCopyNimTree, opcNDel, opcGenSym,
 
     opcNccValue, opcNccInc, opcNcsAdd, opcNcsIncl, opcNcsLen, opcNcsAt,

compiler/vmgen.nim

@@ -1313,9 +1313,6 @@ proc genMagic(c: PCtx; n: PNode; dest: var TDest; m: TMagic) =
   of mNSetIdent:
     unused(c, n, dest)
     genBinaryStmt(c, n, opcNSetIdent)
-  of mNSetType:
-    unused(c, n, dest)
-    genBinaryStmt(c, n, opcNSetType)
   of mNSetStrVal:
     unused(c, n, dest)
     genBinaryStmt(c, n, opcNSetStrVal)