diff --git a/llvm/lib/MC/MCContext.cpp b/llvm/lib/MC/MCContext.cpp
--- a/llvm/lib/MC/MCContext.cpp
+++ b/llvm/lib/MC/MCContext.cpp
@@ -386,9 +386,6 @@
     return new (nullptr, *this) MCSymbolXCOFF(nullptr, IsTemporary);
 
   StringRef OriginalName = Name->first();
-  if (OriginalName.startswith("._Renamed..") ||
-      OriginalName.startswith("_Renamed.."))
-    reportError(SMLoc(), "invalid symbol name from source");
 
   if (MAI->isValidUnquotedName(OriginalName))
     return new (Name, *this) MCSymbolXCOFF(Name, IsTemporary);
diff --git a/llvm/test/CodeGen/PowerPC/aix-xcoff-tls-rename.ll b/llvm/test/CodeGen/PowerPC/aix-xcoff-tls-rename.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/aix-xcoff-tls-rename.ll
@@ -0,0 +1,15 @@
+; RUN: llc -verify-machineinstrs -mtriple powerpc64-ibm-aix-xcoff -mcpu=pwr4 \
+; RUN:     -mattr=-altivec -data-sections=false -xcoff-traceback-table=false < %s | FileCheck %s
+
+; CHECK:      .extern .__tls_get_addr[PR]
+; CHECK-NEXT: .csect .tdata[TL],2
+; CHECK-NEXT: .globl  _Renamed..24f_f                 # @"f$f"
+; CHECK-NEXT: .rename _Renamed..24f_f,"f$f"
+
+@"f$f" = thread_local global i32 10, align 4
+
+define void @fun() {
+entry:
+  store i32 1, ptr @"f$f", align 4
+  ret void
+}