Revert "ARC Analysis in one pass (#16849)" (#16984)

This reverts commit ab740cb5b9.
2021-02-09 15:50:52 +01:00 · 2021-02-09 15:50:52 +01:00 · 9edf719e1e
commit 9edf719e1e
parent cee58ccf7f
7 changed files with 127 additions and 138 deletions
--- a/compiler/ast.nim
+++ b/compiler/ast.nim
@ -491,8 +491,6 @@ type
    nfDefaultRefsParam # a default param value references another parameter
                       # the flag is applied to proc default values and to calls
    nfExecuteOnReload  # A top-level statement that will be executed during reloads
-    nfLastRead  # this node is a last read
-    nfFirstWrite# this node is a first write

  TNodeFlags* = set[TNodeFlag]
  TTypeFlag* = enum   # keep below 32 for efficiency reasons (now: ~40)
@ -1016,7 +1014,7 @@ const
                                      nfDotSetter, nfDotField,
                                      nfIsRef, nfIsPtr, nfPreventCg, nfLL,
                                      nfFromTemplate, nfDefaultRefsParam,
-                                      nfExecuteOnReload, nfLastRead, nfFirstWrite}
+                                      nfExecuteOnReload}
  namePos* = 0
  patternPos* = 1    # empty except for term rewriting macros
  genericParamsPos* = 2