From 54aeea39a743effe88eedb43d2f7f4805e806ab5 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Tue, 21 Oct 2008 03:41:46 +0000
Subject: [PATCH] Disable constant-offset folding for PowerPC, as the PowerPC
 target isn't yet prepared for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57886 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/PPCISelLowering.cpp | 6 ++++++
 lib/Target/PowerPC/PPCISelLowering.h   | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 553ca107ecf..eb327dcdf23 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -4912,3 +4912,9 @@ SDValue PPCTargetLowering::LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) {
     return DAG.getCopyFromReg(DAG.getEntryNode(), is31 ? PPC::R31 : PPC::R1,
       MVT::i32);
 }
+
+bool
+PPCTargetLowering::isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const {
+  // The PowerPC target isn't yet aware of offsets.
+  return false;
+}
diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h
index fa689de058c..00f707dd5a2 100644
--- a/lib/Target/PowerPC/PPCISelLowering.h
+++ b/lib/Target/PowerPC/PPCISelLowering.h
@@ -329,6 +329,8 @@ namespace llvm {
                                                    SDValue Ret,
                                                    SelectionDAG &DAG) const;
 
+    virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
+
   private:
     SDValue getFramePointerFrameIndex(SelectionDAG & DAG) const;
     SDValue getReturnAddrFrameIndex(SelectionDAG & DAG) const;