remove an unused var-info flag and some unused definitions in inference

base/inference.jl

@@ -105,16 +105,10 @@ function _iisconst(s::Symbol, sv)
     m = sv.mod
     isdefined(m,s) && (ccall(:jl_is_const, Int32, (Any, Any), m, s) != 0)
 end
-_iisconst(s::SymbolNode, sv) = _iisconst(s.name, sv)
-_iisconst(s::TopNode, sv) = isconst(_topmod(sv.mod), s.name)
-_iisconst(s::GlobalRef, sv) = isconst(s.mod, s.name)
-_iisconst(x::Expr, sv) = false
-_iisconst(x::ANY, sv) = true
 
 _ieval(x::ANY, sv) =
     ccall(:jl_interpret_toplevel_expr_in, Any, (Any, Any, Any, Any),
           sv.mod, x, svec(), svec())
-_iisdefined(x::ANY, sv) = isdefined(sv.mod, x)
 
 _topmod(sv::VarInfo) = _topmod(sv.mod)
 _topmod(m::Module) = ccall(:jl_base_relative_to, Any, (Any,), m)::Module
@@ -1986,17 +1980,13 @@ function type_annotate(ast::Expr, states::Array{Any,1}, sv::ANY, rettype::ANY, a
 
     # add declarations for variables that are always the same type
     for vi in ast.args[2][1]::Array{Any,1}
-        if (vi[3]&4)==0
-            vi[2] = get(decls, vi[1], vi[2])
-        end
+        vi[2] = get(decls, vi[1], vi[2])
         if haskey(undefs, vi[1])
             vi[3] |= 32
         end
     end
     for vi in ast.args[2][2]::Array{Any,1}
-        if (vi[3]&4)==0
-            vi[2] = get(decls, vi[1], vi[2])
-        end
+        vi[2] = get(decls, vi[1], vi[2])
         if haskey(undefs, vi[1])
             vi[3] |= 32
         end

src/ast.scm

@@ -215,8 +215,6 @@
 (define (vinfo:set-capt! v c)  (set-car! (cddr v) (set-bit (caddr v) 1 c)))
 ;; whether var is assigned
 (define (vinfo:set-asgn! v a)  (set-car! (cddr v) (set-bit (caddr v) 2 a)))
-;; whether var is assigned by an inner function
-(define (vinfo:set-iasg! v a)  (set-car! (cddr v) (set-bit (caddr v) 4 a)))
 ;; whether var is const
 (define (vinfo:set-const! v a) (set-car! (cddr v) (set-bit (caddr v) 8 a)))
 ;; whether var is assigned once

src/julia-syntax.scm

@@ -2739,9 +2739,7 @@ So far only the second case can actually occur.
                  (if (vinfo:asgn vi)
                      (vinfo:set-sa! vi #f)
                      (vinfo:set-sa! vi #t))
-                 (vinfo:set-asgn! vi #t)
-                 (if (assq (car vi) captvars)
-                     (vinfo:set-iasg! vi #t)))))
+                 (vinfo:set-asgn! vi #t))))
          `(= ,(cadr e) ,(analyze-vars (caddr e) env captvars sp)))
         ((call)
          (let ((vi (var-info-for (cadr e) env)))
@@ -2777,9 +2775,7 @@ So far only the second case can actually occur.
                (begin
                  (vinfo:set-asgn! vi #t)
                  ;; note: method defs require a memory loc. (issue #7658)
-                 (vinfo:set-sa! vi #f)
-                 (if (assq (car vi) captvars)
-                     (vinfo:set-iasg! vi #t)))))
+                 (vinfo:set-sa! vi #f))))
          (if (length= e 2)
              `(method ,(cadr e))
              `(method ,(cadr e)