From 87aa18378e6aa5d7be4679cdfb17fdfdb29e29b9 Mon Sep 17 00:00:00 2001
From: Cameron Zwarich <zwarich@apple.com>
Date: Wed, 5 Oct 2011 23:38:50 +0000
Subject: Remove a check from ARM shifted operand isel helper methods, which
 were blocking merging an lsl #2 that has multiple uses on A9. This shift is
 free, so there is no problem merging it in multiple places. Other
 unprofitable shifts will not be merged.

llvm-svn: 141247
---
 llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp | 10 ----------
 1 file changed, 10 deletions(-)

(limited to 'llvm/lib')

diff --git a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
index eabfdbb095c..0626240333d 100644
--- a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -519,11 +519,6 @@ bool ARMDAGToDAGISel::SelectLdStSOReg(SDValue N, SDValue &Base, SDValue &Offset,
       return false;
   }
 
-  if (Subtarget->isCortexA9() && !N.hasOneUse()) {
-    // Compute R +/- (R << N) and reuse it.
-    return false;
-  }
-
   // Otherwise this is R +/- [possibly shifted] R.
   ARM_AM::AddrOpc AddSub = N.getOpcode() == ISD::SUB ? ARM_AM::sub:ARM_AM::add;
   ARM_AM::ShiftOpc ShOpcVal =
@@ -1286,11 +1281,6 @@ bool ARMDAGToDAGISel::SelectT2AddrModeSoReg(SDValue N,
       return false;
   }
 
-  if (Subtarget->isCortexA9() && !N.hasOneUse()) {
-    // Compute R + (R << [1,2,3]) and reuse it.
-    return false;
-  }
-
   // Look for (R + R) or (R + (R << [1,2,3])).
   unsigned ShAmt = 0;
   Base   = N.getOperand(0);
-- 
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