commit a9080653c22d6fcacca5878603167151d8d11ee4
author Craig Topper <craig.topper@gmail.com> Fri Aug 30 07:16:16 2013 +0000
committer Craig Topper <craig.topper@gmail.com> Fri Aug 30 07:16:16 2013 +0000
tree 8725a8b1b861f22ce903445abfed1c86936724a9
parent 74f269176fb3b3dc2d3d6417492c65ef28a8ecfa

Fixup BZHI selection to remove an unneeded zero extension.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189656 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86ISelLowering.cpp

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index ecbd24f..73c4a1c 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -17320,8 +17320,7 @@
           assert(N001.getValueType() == MVT::i8 && "unexpected type");
           ConstantSDNode *C = dyn_cast<ConstantSDNode>(N00.getOperand(0));
           if (C && C->getZExtValue() == 1)
-            return DAG.getNode(X86ISD::BZHI, DL, VT, N1,
-                               DAG.getNode(ISD::ZERO_EXTEND, DL, VT, N001));
+            return DAG.getNode(X86ISD::BZHI, DL, VT, N1, N001);
         }
       }
 
@@ -17333,8 +17332,7 @@
           assert(N101.getValueType() == MVT::i8 && "unexpected type");
           ConstantSDNode *C = dyn_cast<ConstantSDNode>(N10.getOperand(0));
           if (C && C->getZExtValue() == 1)
-            return DAG.getNode(X86ISD::BZHI, DL, VT, N0,
-                               DAG.getNode(ISD::ZERO_EXTEND, DL, VT, N101));
+            return DAG.getNode(X86ISD::BZHI, DL, VT, N0, N101);
         }
       }
     }