[turbofan] track source positions in EffectControlLinearizer

src/compiler/effect-control-linearizer.cc

Index: src/compiler/effect-control-linearizer.cc
diff --git a/src/compiler/effect-control-linearizer.cc b/src/compiler/effect-control-linearizer.cc
index ad86ca5d81ce62f8093b0611444ffc177c06206a..ae6b622b988a59c2d3ef208e14219bf389a00c0f 100644
--- a/src/compiler/effect-control-linearizer.cc
+++ b/src/compiler/effect-control-linearizer.cc
@@ -6,6 +6,7 @@
 
 #include "src/code-factory.h"
 #include "src/compiler/access-builder.h"
+#include "src/compiler/compiler-source-position-table.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/node-matchers.h"
@@ -17,10 +18,13 @@ namespace v8 {
 namespace internal {
 namespace compiler {
 
-EffectControlLinearizer::EffectControlLinearizer(JSGraph* js_graph,
-                                                 Schedule* schedule,
-                                                 Zone* temp_zone)
-    : js_graph_(js_graph), schedule_(schedule), temp_zone_(temp_zone) {}
+EffectControlLinearizer::EffectControlLinearizer(
+    JSGraph* js_graph, Schedule* schedule, Zone* temp_zone,
+    SourcePositionTable* source_positions)
+    : js_graph_(js_graph),
+      schedule_(schedule),
+      temp_zone_(temp_zone),
+      source_positions_(source_positions) {}
 
 Graph* EffectControlLinearizer::graph() const { return js_graph_->graph(); }
 CommonOperatorBuilder* EffectControlLinearizer::common() const {
@@ -428,7 +432,13 @@ void EffectControlLinearizer::Run() {
     // Process the ordinary instructions.
     for (; instr < block->NodeCount(); instr++) {
       Node* node = block->NodeAt(instr);
-      ProcessNode(node, &frame_state, &effect, &control);
+      if (source_positions_) {
+        SourcePositionTable::Scope scope(
+            source_positions_, source_positions_->GetSourcePosition(node));
+        ProcessNode(node, &frame_state, &effect, &control);
+      } else {
+        ProcessNode(node, &frame_state, &effect, &control);
+      }
     }
 
     switch (block->control()) {