Add an EmitAbsValue helper method and use it in cases where we want to be sure
that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121000 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index 6df4ae4..b9d5905 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -72,6 +72,12 @@
   EmitBytes(OSE.str(), AddrSpace);
 }
 
+void MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size) {
+  MCSymbol *ABS = getContext().CreateTempSymbol();
+  EmitAssignment(ABS, Value);
+  EmitSymbolValue(ABS, Size, 0);
+}
+
 void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
                                  unsigned AddrSpace) {
   EmitValue(MCSymbolRefExpr::Create(Sym, getContext()), Size, AddrSpace);