move LineInfoNode definition in IRTools

Author: Pangoraw

src/ir/ir.jl

@@ -1,10 +1,22 @@
-using Base.IRShow: LineInfoNode
 import Base: push!, insert!, getindex, setindex!, iterate, length
 
 # We have our own versions of these in order to
 # (1) be more robust to Base IR changes, and
 # (2) make sure that mistakes/bugs do not cause bad LLVM IR.
 
+"""
+    LineInfoNode(file::Symbol, line::Int32, [inlined_at::Int32])
+
+Represents line information about a statement; Inlined statements has a non-zero
+`inlined_at` which represents the "parent" location in the linetable array.
+"""
+struct LineInfoNode
+  file::Symbol
+  line::Int32
+  inlined_at::Int32
+end
+LineInfoNode(file, line) = LineInfoNode(file, line, Int32(0))
+
 struct Undefined end
 const undef = Undefined()
 

src/ir/wrap.jl

@@ -4,7 +4,7 @@ using MacroTools: isexpr, prewalk
 
 using ..Inner, ..IRTools
 import ..Inner: IR, Variable, Statement, Branch, BasicBlock, Meta, block!,
-  unreachable, varmap, argument!, branch!, return!
+  unreachable, varmap, argument!, branch!, return!, LineInfoNode
 import Core: CodeInfo, GotoNode, SSAValue
 import Core.Compiler: IRCode, CFG, GotoIfNot, ReturnNode, StmtRange
 
@@ -108,7 +108,9 @@ function IRCode(ir::IR)
       debuginfo.linetable = Core.DebugInfo(debuginfo.def, nothing, Core.svec(), codelocs)
       IRCode(stmts, cfg, debuginfo, ir.blocks[1].argtypes, meta, sps)
     else
-      IRCode(stmts, cfg, ir.lines, ir.blocks[1].argtypes, meta, sps)
+      mod, meth = ir.meta isa Meta ? (ir.meta.method.module, ir.meta.method) : (Main, nothing)
+      linetable = map(li -> Core.LineInfoNode(mod, meth, li.file, li.line, li.inlined_at), ir.lines)
+      IRCode(stmts, cfg, linetable, ir.blocks[1].argtypes, meta, sps)
     end
   else
     IRCode(stmts, types, lines, flags, cfg, ir.lines, ir.blocks[1].argtypes, [], sps)
@@ -159,20 +161,21 @@ function IR(ci::CodeInfo, nargs::Integer; meta = nothing)
     def = isnothing(meta) ? :var"n/a" : meta.instance
     N = length(ci.code)
     codelocs = fill(0, N)
-    linetable = Base.IRShow.LineInfoNode[]
+    linetable = LineInfoNode[]
 
     # NOTE: we could be faster about decoding here and support inlining?
     for pc in 1:N
       LI = Base.IRShow.buildLineInfoNode(ci.debuginfo, def, pc)
       if !isempty(LI)
-        push!(linetable, first(LI))
+        linode = first(LI) # ::Base.IRShow.LineInfoNode
+        push!(linetable, LineInfoNode(linode.file, linode.line))
         codelocs[pc] = length(linetable)
       end
     end
 
     codelocs, linetable
   else
-    ci.codelocs, Core.LineInfoNode[ci.linetable...]
+    ci.codelocs, map(li -> LineInfoNode(li.file, li.line), ci.linetable)
   end
   ir = IR(linetable, meta = meta)
   _rename = Dict()