Subzero: Fix nondeterministic behavior in constant pool creation.

src/IceTargetLoweringX8664.cpp

Index: src/IceTargetLoweringX8664.cpp
diff --git a/src/IceTargetLoweringX8664.cpp b/src/IceTargetLoweringX8664.cpp
index 70bc08528d64f31662b951c2b1bbcf873e7c0bbf..c0ec7c5f46d7a725143087d4e8751d12ec5b9486 100644
--- a/src/IceTargetLoweringX8664.cpp
+++ b/src/IceTargetLoweringX8664.cpp
@@ -773,7 +773,7 @@ void TargetDataX8664::emitConstantPool(GlobalContext *Ctx) {
     assert(CharsPrinted >= 0 &&
            (size_t)CharsPrinted < llvm::array_lengthof(buf));
     (void)CharsPrinted; // avoid warnings if asserts are disabled
-    Const->emitPoolLabel(Str);
+    Const->emitPoolLabel(Str, Ctx);
     Str << ":\n\t" << T::AsmTag << "\t" << buf << "\t# " << T::TypeName << " "
         << Value << "\n";
   }