commit af385baa1d0438104a67b63a61b264c7cde43c50
author Bob Wilson <bob.wilson@apple.com> Wed Aug 12 22:54:19 2009 +0000
committer Bob Wilson <bob.wilson@apple.com> Wed Aug 12 22:54:19 2009 +0000
tree ee275f2e54147e8d89c2caf376313e7a54ae63c2
parent d8e1757eacbcbae6657558f40fdada4279a9d1ed

Recognize Neon VDUP shuffles during legalization instead of selection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78852 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARMISelLowering.cpp

diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index f348fe2..f2b6686 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -487,6 +487,7 @@
   case ARMISD::VREV64:        return "ARMISD::VREV64";
   case ARMISD::VREV32:        return "ARMISD::VREV32";
   case ARMISD::VREV16:        return "ARMISD::VREV16";
+  case ARMISD::VSPLAT0:       return "ARMISD::VSPLAT0";
   }
 }
 
@@ -2440,6 +2441,8 @@
   DebugLoc dl = Op.getDebugLoc();
   EVT VT = Op.getValueType();
 
+  if (SVN->isSplat() && SVN->getSplatIndex() == 0)
+    return DAG.getNode(ARMISD::VSPLAT0, dl, VT, SVN->getOperand(0));
   if (isVREVMask(SVN, 64))
     return DAG.getNode(ARMISD::VREV64, dl, VT, SVN->getOperand(0));
   if (isVREVMask(SVN, 32))