From: Chris Lattner <sabre@nondot.org>
Date: Thu, 21 Apr 2005 21:09:11 +0000 (+0000)
Subject: Match another form of eqv
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=837a521c48b5bb481b61ba971092044cdbf0387f;p=oota-llvm.git

Match another form of eqv


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21413 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/PowerPC/PPCISelPattern.cpp b/lib/Target/PowerPC/PPCISelPattern.cpp
index 5d93774ab42..423eafe68f9 100644
--- a/lib/Target/PowerPC/PPCISelPattern.cpp
+++ b/lib/Target/PowerPC/PPCISelPattern.cpp
@@ -1899,7 +1899,7 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
       BuildMI(BB, PPC::EQV, 2, Result).addReg(Tmp1).addReg(Tmp2);
       return Result;
     }
-    // Check for NOT, NOR, and NAND: xor (copy, or, and), -1
+    // Check for NOT, NOR, EQV, and NAND: xor (copy, or, xor, and), -1
     if (N.getOperand(1).getOpcode() == ISD::Constant &&
         cast<ConstantSDNode>(N.getOperand(1))->isAllOnesValue()) {
       switch(N.getOperand(0).getOpcode()) {
@@ -1913,6 +1913,11 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
         Tmp2 = SelectExpr(N.getOperand(0).getOperand(1));
         BuildMI(BB, PPC::NAND, 2, Result).addReg(Tmp1).addReg(Tmp2);
         break;
+      case ISD::XOR:
+        Tmp1 = SelectExpr(N.getOperand(0).getOperand(0));
+        Tmp2 = SelectExpr(N.getOperand(0).getOperand(1));
+        BuildMI(BB, PPC::EQV, 2, Result).addReg(Tmp1).addReg(Tmp2);
+        break;
       default:
         Tmp1 = SelectExpr(N.getOperand(0));
         BuildMI(BB, PPC::NOR, 2, Result).addReg(Tmp1).addReg(Tmp1);