[new IR] line numbers

base/compiler/optimize.jl

@@ -283,7 +283,7 @@ function optimize(me::InferenceState)
             reindex_labels!(opt)
             nargs = Int(opt.nargs) - 1
             if def isa Method
-                topline = LineInfoNode(opt.mod, def.name, def.file, Int(def.line), Int(0))
+                topline = LineInfoNode(opt.mod, def.name, def.file, Int(def.line), 0)
             else
                 topline = LineInfoNode(opt.mod, NullLineInfo.method, NullLineInfo.file, 0, 0)
             end

base/compiler/ssair/driver.jl

@@ -151,6 +151,6 @@ function run_passes(ci::CodeInfo, nargs::Int, linetable::Vector{LineInfoNode}, s
     @timeit "compact 2" ir = compact!(ir)
     @timeit "type lift" ir = type_lift_pass!(ir)
     @timeit "compact 3" ir = compact!(ir)
-    #@timeit "verify 3" verify_ir(ir)
+    #@timeit "verify 3" (verify_ir(ir); verify_linetable(linetable))
     return ir
 end

base/compiler/ssair/inlining2.jl

@@ -151,8 +151,9 @@ function batch_inline!(todo, ir, domtree, linetable, sv)
             inline_cfg = inline_ir.cfg
             linetable_offset = length(linetable)
             # Append the linetable of the inlined function to our line table
+            inlined_at = compact.result_lines[idx]
             for entry in inline_linetable
-                push!(linetable, LineInfoNode(entry.mod, entry.method, entry.file, entry.line, compact.result_lines[idx]))
+                push!(linetable, LineInfoNode(entry.mod, entry.method, entry.file, entry.line, (entry.inlined_at > 0 ? entry.inlined_at + linetable_offset : inlined_at)))
             end
             # If the iterator already moved on to the next basic block,
             # temorarily re-open in again.
@@ -261,6 +262,7 @@ function batch_inline!(todo, ir, domtree, linetable, sv)
     end
 
     ir = finish(compact)
+    return ir
 end
 
 function spec_lambda(@nospecialize(atype), sv::OptimizationState, @nospecialize(invoke_data))
@@ -313,6 +315,7 @@ function maybe_make_invoke!(ir, idx, @nospecialize(etype), atypes::Vector{Any},
     ex.typ = etype
     ex.args = argexprs
     ir[SSAValue(idx)] = ex
+    nothing
 end
 
 function exprtype_func(@nospecialize(arg1), ir)

base/compiler/ssair/ir.jl

@@ -368,7 +368,7 @@ mutable struct IncrementalCompact
         new_len = length(code.stmts) + length(code.new_nodes)
         result = Array{Any}(undef, new_len)
         result_types = Array{Any}(undef, new_len)
-        result_lines = Array{Int}(undef, new_len)
+        result_lines = fill(0, new_len)
         used_ssas = fill(0, new_len)
         ssa_rename = Any[SSAValue(i) for i = 1:new_len]
         late_fixup = Vector{Int}()
@@ -546,6 +546,7 @@ function resize!(compact::IncrementalCompact, nnewnodes)
     resize!(compact.result_lines, nnewnodes)
     resize!(compact.used_ssas, nnewnodes)
     compact.used_ssas[(old_length+1):nnewnodes] = 0
+    nothing
 end
 
 function finish_current_bb!(compact, old_result_idx=compact.result_idx)

base/compiler/ssair/verify.jl

@@ -70,6 +70,7 @@ function verify_ir(ir::IRCode)
     # Verify statements
     domtree = construct_domtree(ir.cfg)
     for (bb, idx, stmt) in bbidxstmt(ir)
+        stmt === nothing && continue
         if isa(stmt, PhiNode)
             @assert length(stmt.edges) == length(stmt.values)
             for i = 1:length(stmt.edges)
@@ -110,10 +111,26 @@ function verify_ir(ir::IRCode)
                 end
             end
         else
+            if isa(stmt, Expr) || isa(stmt, ReturnNode) # TODO: make sure everything has line info
+                if !(stmt isa ReturnNode && !isdefined(stmt, :val)) # not actually a return node, but an unreachable marker
+                    if ir.lines[idx] <= 0
+                        @verify_error "Missing line number information for statement $idx of $ir"
+                    end
+                end
+            end
             for op in userefs(stmt)
                 op = op[]
                 check_op(ir, domtree, op, bb, idx)
             end
         end
     end
 end
+
+function verify_linetable(linetable::Vector{LineInfoNode})
+    for i in 1:length(linetable)
+        line = linetable[i]
+        if i <= line.inlined_at
+            @verify_error "Misordered linetable"
+        end
+    end
+end

src/ccall.cpp

@@ -1126,8 +1126,10 @@ static jl_cgval_t emit_llvmcall(jl_codectx_t &ctx, jl_value_t **args, size_t nar
     }
 
     CallInst *inst = ctx.builder.CreateCall(f, ArrayRef<Value*>(&argvals[0], nargt));
-    if (isString)
+    if (isString) {
         f->addFnAttr(Attribute::AlwaysInline);
+        inst->setAttributes(f->getAttributes());
+    }
 
     JL_GC_POP();