Revert r91623 to unbreak the buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91632 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp
index a37a082ba854eb6469640d7c54a2b291deddea17..a9a78be3e31c6a3fe35250740f724595b7039881 100644 (file)
--- a/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -50,6 +50,9 @@
 #include "llvm/ADT/Statistic.h"
 using namespace llvm;
 
+#include "llvm/Support/CommandLine.h"
+static cl::opt<bool> AvoidDupAddrCompute("x86-avoid-dup-address", cl::Hidden);
+
 STATISTIC(NumLoadMoved, "Number of loads moved below TokenFactor");
 
 //===----------------------------------------------------------------------===//
@@ -1273,7 +1276,7 @@ bool X86DAGToDAGISel::SelectAddr(SDValue Op, SDValue N, SDValue &Base,
                                  SDValue &Disp, SDValue &Segment) {
   X86ISelAddressMode AM;
   bool Done = false;
-  if (!N.hasOneUse()) {
+  if (AvoidDupAddrCompute && !N.hasOneUse()) {
     unsigned Opcode = N.getOpcode();
     if (Opcode != ISD::Constant && Opcode != ISD::FrameIndex &&
         Opcode != X86ISD::Wrapper && Opcode != X86ISD::WrapperRIP) {