[DebugInfo] Hold generic MCExpr in AddrPool
This changes the AddrPool infrastructure to enable it to hold
generic MCExpr expressions, not just MCSymbolRefExpr.
This is in preparation for supporting debug info for TLS variables
on PowerPC, where we need to describe the variable location using
a more complex expression than just MCSymbolRefExpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185459 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 893505c..60c6c3f 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -197,7 +197,7 @@
// A Symbol->unsigned mapping of addresses used by indirect
// references.
-typedef DenseMap<const MCSymbolRefExpr *, unsigned> AddrPool;
+typedef DenseMap<const MCExpr *, unsigned> AddrPool;
/// \brief Collects and handles information specific to a particular
/// collection of units.
@@ -270,7 +270,7 @@
/// \brief Returns the index into the address pool with the given
/// label/symbol.
- unsigned getAddrPoolIndex(const MCSymbolRefExpr *);
+ unsigned getAddrPoolIndex(const MCExpr *);
unsigned getAddrPoolIndex(const MCSymbol *);
/// \brief Returns the address pool.