[llvm-commits] [llvm] r136201 - /llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

[Bruno Cardoso Lopes]

Author: bruno
Date: Tue Jul 26 19:56:37 2011
New Revision: 136201

URL: http://llvm.org/viewvc/llvm-project?rev=136201&view=rev
Log:
Move some code around to open opportunity for more shuffle matching

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=136201&r1=136200&r2=136201&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Tue Jul 26 19:56:37 2011
@@ -6187,24 +6187,6 @@
   if (X86::isUNPCKH_v_undef_Mask(SVOp))
     return getTargetShuffleNode(getUNPCKHOpcode(VT), dl, VT, V1, V1, DAG);
 
-  // Handle v8i16 specifically since SSE can do byte extraction and insertion.
-  if (VT == MVT::v8i16) {
-    SDValue NewOp = LowerVECTOR_SHUFFLEv8i16(Op, DAG);
-    if (NewOp.getNode())
-      return NewOp;
-  }
-
-  if (VT == MVT::v16i8) {
-    SDValue NewOp = LowerVECTOR_SHUFFLEv16i8(SVOp, DAG, *this);
-    if (NewOp.getNode())
-      return NewOp;
-  }
-
-  // Handle all 128-bit wide vectors with 4 elements, and match them with
-  // several different shuffle types.
-  if (NumElems == 4 && VT.getSizeInBits() == 128)
-    return LowerVECTOR_SHUFFLE_128v4(SVOp, DAG);
-
   //===--------------------------------------------------------------------===//
   // Generate target specific nodes for 128 or 256-bit shuffles only
   // supported in the AVX instruction set.
@@ -6226,6 +6208,24 @@
   // this is the plan.
   //
 
+  // Handle v8i16 specifically since SSE can do byte extraction and insertion.
+  if (VT == MVT::v8i16) {
+    SDValue NewOp = LowerVECTOR_SHUFFLEv8i16(Op, DAG);
+    if (NewOp.getNode())
+      return NewOp;
+  }
+
+  if (VT == MVT::v16i8) {
+    SDValue NewOp = LowerVECTOR_SHUFFLEv16i8(SVOp, DAG, *this);
+    if (NewOp.getNode())
+      return NewOp;
+  }
+
+  // Handle all 128-bit wide vectors with 4 elements, and match them with
+  // several different shuffle types.
+  if (NumElems == 4 && VT.getSizeInBits() == 128)
+    return LowerVECTOR_SHUFFLE_128v4(SVOp, DAG);
+
   // Handle general 256-bit shuffles
   if (VT.is256BitVector())
     return LowerVECTOR_SHUFFLE_256(SVOp, DAG);