commit 70bdea2c61f4f59818e1447bc76e9e4a3c184890
author Kazu Hirata <kazu@google.com> Wed Feb 17 23:58:43 2021 -0800
committer Copybara-Service <copybara-worker@google.com> Fri Feb 19 03:24:10 2021 -0800
tree a74949b4a1e308ac54fc78f530865a0cfae5c6a4
parent 9e362d7f2dc929a872a9689b5ca55501662c12ab

[CodeGen] Use ListSeparator (NFC)

GitOrigin-RevId: 8e13bbca0883d617156c9e09ddf46bfb5739f2cd

lib/CodeGen/GCMetadata.cpp

diff --git a/lib/CodeGen/GCMetadata.cpp b/lib/CodeGen/GCMetadata.cpp
index 7c96d83..01167c0 100644
--- a/lib/CodeGen/GCMetadata.cpp
+++ b/lib/CodeGen/GCMetadata.cpp
@@ -12,6 +12,7 @@
 
 #include "llvm/CodeGen/GCMetadata.h"
 #include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/CodeGen/GCStrategy.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/IR/Function.h"
@@ -122,14 +123,9 @@
     OS << "\t" << PI->Label->getName() << ": " << "post-call"
        << ", live = {";
 
-    for (GCFunctionInfo::live_iterator RI = FD->live_begin(PI),
-                                       RE = FD->live_end(PI);
-         ;) {
-      OS << " " << RI->Num;
-      if (++RI == RE)
-        break;
-      OS << ",";
-    }
+    ListSeparator LS(",");
+    for (const GCRoot &R : make_range(FD->live_begin(PI), FD->live_end(PI)))
+      OS << LS << " " << R.Num;
 
     OS << " }\n";
   }