commit 36b718fc74530d9a7e58185efa78fedbee7f5a13
author Rafael Espindola <rafael.espindola@gmail.com> Mon Jun 22 17:46:53 2015 +0000
committer Rafael Espindola <rafael.espindola@gmail.com> Mon Jun 22 17:46:53 2015 +0000
tree ee65f3dca4a58396750c6b61075dcb4b902fafc7
parent 7d1483f51cc6a6ecb6e1802567592daf841f463d

Avoid a Symbol -> Name -> Symbol conversion.

Before this we were producing a TargetExternalSymbol from a MCSymbol.
That meant extracting the symbol name and fetching the symbol again
down the pipeline.

This patch adds a DAG.getMCSymbol that lets the MCSymbol pass unchanged on the
DAG.

Doing so removes the need for MO_NOPREFIX and fixes the root cause of pr23900,
allowing r240130 to be committed again.

llvm-svn: 240300

llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index c5562cd..7c4b970 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -2562,6 +2562,7 @@
   case ISD::TargetConstantPool:
   case ISD::TargetFrameIndex:
   case ISD::TargetExternalSymbol:
+  case ISD::MCSymbol:
   case ISD::TargetBlockAddress:
   case ISD::TargetJumpTable:
   case ISD::TargetGlobalTLSAddress: