commit 85dfb68e5004dd407c5a8cace921c5679ac56a77
author Reid Kleckner <rnk@google.com> Wed Sep 16 16:26:29 2015 +0000
committer Reid Kleckner <rnk@google.com> Wed Sep 16 16:26:29 2015 +0000
tree c0783fc45b02fce5821f6f2d2de16bb92f26494a
parent 815adacd227c35f3d2341fb23907179f5ff7de75

Add assembler fatal error for undefined assembler labels in COFF writer

llvm-svn: 247814

llvm/lib/MC/WinCOFFObjectWriter.cpp

diff --git a/llvm/lib/MC/WinCOFFObjectWriter.cpp b/llvm/lib/MC/WinCOFFObjectWriter.cpp
index 6c69673..f251942 100644
--- a/llvm/lib/MC/WinCOFFObjectWriter.cpp
+++ b/llvm/lib/MC/WinCOFFObjectWriter.cpp
@@ -710,6 +710,11 @@
     Asm.getContext().reportFatalError(Fixup.getLoc(),
                                       Twine("symbol '") + A.getName() +
                                           "' can not be undefined");
+  if (A.isTemporary() && A.isUndefined()) {
+    Asm.getContext().reportFatalError(Fixup.getLoc(),
+                                      Twine("assembler label '") + A.getName() +
+                                          "' can not be undefined");
+  }
 
   MCSection *Section = Fragment->getParent();