From: Jim Laskey <jlaskey@mac.com>
Date: Fri, 12 Aug 2005 23:38:02 +0000 (+0000)
Subject: 1. This changes handles the cases of (~x)&y and x&(~y) yielding ANDC, and
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=847c3a976bb225a1ce9efdd5d11b8ef292c01d9a;p=oota-llvm.git

1. This changes handles the cases of (~x)&y and x&(~y) yielding ANDC, and
   (~x)|y and x|(~y) yielding ORC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22771 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/PowerPC/PPCISelPattern.cpp b/lib/Target/PowerPC/PPCISelPattern.cpp
index cef895b5d20..500333fb296 100644
--- a/lib/Target/PowerPC/PPCISelPattern.cpp
+++ b/lib/Target/PowerPC/PPCISelPattern.cpp
@@ -1717,10 +1717,17 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
        return Result;
       }
     }
+    if (isOprNot(N.getOperand(1))) {
+      Tmp1 = SelectExpr(N.getOperand(0));
+      Tmp2 = SelectExpr(N.getOperand(1).getOperand(0));
+      BuildMI(BB, PPC::ANDC, 2, Result).addReg(Tmp1).addReg(Tmp2);
+      RecordSuccess = false;
+      return Result;
+    }
     if (isOprNot(N.getOperand(0))) {
-      Tmp1 = SelectExpr(N.getOperand(0).getOperand(0));
-      Tmp2 = SelectExpr(N.getOperand(1));
-      BuildMI(BB, PPC::ANDC, 2, Result).addReg(Tmp2).addReg(Tmp1);
+      Tmp1 = SelectExpr(N.getOperand(1));
+      Tmp2 = SelectExpr(N.getOperand(0).getOperand(0));
+      BuildMI(BB, PPC::ANDC, 2, Result).addReg(Tmp1).addReg(Tmp2);
       RecordSuccess = false;
       return Result;
     }
@@ -1737,6 +1744,20 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
       return Result;
     if (SelectIntImmediateExpr(N, Result, PPC::ORIS, PPC::ORI))
       return Result;
+    if (isOprNot(N.getOperand(1))) {
+      Tmp1 = SelectExpr(N.getOperand(0));
+      Tmp2 = SelectExpr(N.getOperand(1).getOperand(0));
+      BuildMI(BB, PPC::ORC, 2, Result).addReg(Tmp1).addReg(Tmp2);
+      RecordSuccess = false;
+      return Result;
+    }
+    if (isOprNot(N.getOperand(0))) {
+      Tmp1 = SelectExpr(N.getOperand(1));
+      Tmp2 = SelectExpr(N.getOperand(0).getOperand(0));
+      BuildMI(BB, PPC::ORC, 2, Result).addReg(Tmp1).addReg(Tmp2);
+      RecordSuccess = false;
+      return Result;
+    }
     // emit regular or
     Tmp1 = SelectExpr(N.getOperand(0));
     Tmp2 = SelectExpr(N.getOperand(1));