Assembler should accept redefinitions of unused variable symbols.
rdar://11027851
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153137 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index 41ad164..ab5ddaf 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -1629,6 +1629,8 @@
return Error(EqualLoc, "Recursive use of '" + Name + "'");
else if (Sym->isUndefined() && !Sym->isUsed() && !Sym->isVariable())
; // Allow redefinitions of undefined symbols only used in directives.
+ else if (Sym->isVariable() && !Sym->isUsed() && allow_redef)
+ ; // Allow redefinitions of variables that haven't yet been used.
else if (!Sym->isUndefined() && (!Sym->isVariable() || !allow_redef))
return Error(EqualLoc, "redefinition of '" + Name + "'");
else if (!Sym->isVariable())