From: Eric Christopher <echristo@gmail.com>
Date: Mon, 4 Aug 2014 21:24:07 +0000 (+0000)
Subject: Reimplement the temporary non-const getSubtargetImpl routine so
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=commitdiff_plain;h=ffa13eafbf7f968774c3178f3efb85edeb9b105e

Reimplement the temporary non-const getSubtargetImpl routine so
that we can avoid implementing it on every target. Thanks to Richard
Smith for the suggestions!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214780 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Target/TargetMachine.h b/include/llvm/Target/TargetMachine.h
index d48f746805b..3b0c60d35ba 100644
--- a/include/llvm/Target/TargetMachine.h
+++ b/include/llvm/Target/TargetMachine.h
@@ -100,7 +100,10 @@ public:
   virtual const TargetSubtargetInfo *getSubtargetImpl() const {
     return nullptr;
   }
-  virtual TargetSubtargetInfo *getSubtargetImpl() { return nullptr; }
+  virtual TargetSubtargetInfo *getSubtargetImpl() {
+    const TargetMachine *TM = this;
+    return const_cast<TargetSubtargetInfo *>(TM->getSubtargetImpl());
+  }
 
   mutable TargetOptions Options;