[llvm] r370670 - [X86] getPMOVMSKB - add MVT::v64i8 handling and remove from combineBitcastvxi1. NFCI.

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Mon Sep  2 08:10:35 2019
New Revision: 370670

URL: http://llvm.org/viewvc/llvm-project?rev=370670&view=rev
Log:
[X86] getPMOVMSKB - add MVT::v64i8 handling and remove from combineBitcastvxi1. NFCI.

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=370670&r1=370669&r2=370670&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Mon Sep  2 08:10:35 2019
@@ -26557,6 +26557,17 @@ static SDValue getPMOVMSKB(const SDLoc &
                            const X86Subtarget &Subtarget) {
   MVT InVT = V.getSimpleValueType();
 
+  if (InVT == MVT::v64i8) {
+    SDValue Lo, Hi;
+    std::tie(Lo, Hi) = DAG.SplitVector(V, DL);
+    Lo = getPMOVMSKB(DL, Lo, DAG, Subtarget);
+    Hi = getPMOVMSKB(DL, Hi, DAG, Subtarget);
+    Lo = DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::i64, Lo);
+    Hi = DAG.getNode(ISD::ANY_EXTEND, DL, MVT::i64, Hi);
+    Hi = DAG.getNode(ISD::SHL, DL, MVT::i64, Hi,
+                     DAG.getConstant(32, DL, MVT::i8));
+    return DAG.getNode(ISD::OR, DL, MVT::i64, Lo, Hi);
+  }
   if (InVT == MVT::v32i8 && !Subtarget.hasInt256()) {
     SDValue Lo, Hi;
     std::tie(Lo, Hi) = DAG.SplitVector(V, DL);
@@ -35251,17 +35262,7 @@ static SDValue combineBitcastvxi1(Select
 
   SDValue V = DAG.getNode(ISD::SIGN_EXTEND, DL, SExtVT, Src);
 
-  if (SExtVT == MVT::v64i8) {
-    SDValue Lo, Hi;
-    std::tie(Lo, Hi) = DAG.SplitVector(V, DL);
-    Lo = DAG.getNode(X86ISD::MOVMSK, DL, MVT::i32, Lo);
-    Lo = DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::i64, Lo);
-    Hi = DAG.getNode(X86ISD::MOVMSK, DL, MVT::i32, Hi);
-    Hi = DAG.getNode(ISD::ANY_EXTEND, DL, MVT::i64, Hi);
-    Hi = DAG.getNode(ISD::SHL, DL, MVT::i64, Hi,
-                     DAG.getConstant(32, DL, MVT::i8));
-    V = DAG.getNode(ISD::OR, DL, MVT::i64, Lo, Hi);
-  } else if (SExtVT == MVT::v16i8 || SExtVT == MVT::v32i8) {
+  if (SExtVT == MVT::v16i8 || SExtVT == MVT::v32i8 || SExtVT == MVT::v64i8) {
     V = getPMOVMSKB(DL, V, DAG, Subtarget);
   } else {
     if (SExtVT == MVT::v8i16)