[llvm] r320863 - [X86] In LowerVectorCTPOP use ISD::ZERO_EXTEND/ISD::TRUNCATE instead of the target specific nodes.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Fri Dec 15 13:18:05 2017
New Revision: 320863

URL: http://llvm.org/viewvc/llvm-project?rev=320863&view=rev
Log:
[X86] In LowerVectorCTPOP use ISD::ZERO_EXTEND/ISD::TRUNCATE instead of the target specific nodes.

The target independent nodes will get legalized to the target specific nodes by their own legalization process. Someday I'd like to stop using a target specific for zero extends and truncates of legal types so the less places we reference the target specific opcode the better.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=320863&r1=320862&r2=320863&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Fri Dec 15 13:18:05 2017
@@ -23779,14 +23779,14 @@ static SDValue LowerVectorCTPOP(SDValue
   // TRUNC(CTPOP(ZEXT(X))) to make use of vXi32/vXi64 VPOPCNT instructions.
   if (Subtarget.hasVPOPCNTDQ()) {
     if (VT == MVT::v8i16) {
-      Op = DAG.getNode(X86ISD::VZEXT, DL, MVT::v8i64, Op0);
+      Op = DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::v8i64, Op0);
       Op = DAG.getNode(ISD::CTPOP, DL, MVT::v8i64, Op);
-      return DAG.getNode(X86ISD::VTRUNC, DL, VT, Op);
+      return DAG.getNode(ISD::TRUNCATE, DL, VT, Op);
     }
     if (VT == MVT::v16i8 || VT == MVT::v16i16) {
-      Op = DAG.getNode(X86ISD::VZEXT, DL, MVT::v16i32, Op0);
+      Op = DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::v16i32, Op0);
       Op = DAG.getNode(ISD::CTPOP, DL, MVT::v16i32, Op);
-      return DAG.getNode(X86ISD::VTRUNC, DL, VT, Op);
+      return DAG.getNode(ISD::TRUNCATE, DL, VT, Op);
     }
   }