[llvm-commits] [llvm] r154425 - in /llvm/trunk: lib/Target/X86/X86ISelLowering.cpp lib/Target/X86/X86ISelLowering.h lib/Target/X86/X86InstrFragmentsSIMD.td lib/Target/X86/X86InstrSSE.td test/CodeGen/X86/avx-shuffle.ll test/CodeGen/X86/vec_shuffle-20.ll

Eric Christopher echristo at apple.com
Tue Apr 10 12:33:16 PDT 2012


Author: echristo
Date: Tue Apr 10 14:33:16 2012
New Revision: 154425

URL: http://llvm.org/viewvc/llvm-project?rev=154425&view=rev
Log:
Temporarily revert this patch to see if it brings the buildbots back.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
    llvm/trunk/lib/Target/X86/X86ISelLowering.h
    llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td
    llvm/trunk/lib/Target/X86/X86InstrSSE.td
    llvm/trunk/test/CodeGen/X86/avx-shuffle.ll
    llvm/trunk/test/CodeGen/X86/vec_shuffle-20.ll

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=154425&r1=154424&r2=154425&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Tue Apr 10 14:33:16 2012
@@ -5391,75 +5391,59 @@
   SDValue V1 = SVOp->getOperand(0);
   SDValue V2 = SVOp->getOperand(1);
   DebugLoc dl = SVOp->getDebugLoc();
+  LLVMContext *Context = DAG.getContext();
   EVT VT = Op.getValueType();
   EVT InVT = V1.getValueType();
+  EVT EltVT = VT.getVectorElementType();
+  unsigned EltSize = EltVT.getSizeInBits();
   int MaskSize = VT.getVectorNumElements();
   int InSize = InVT.getVectorNumElements();
 
-  if (!Subtarget->hasSSE41())
+  // TODO: At the moment we only use AVX blends. We could also use SSE4 blends.
+  if (!Subtarget->hasAVX())
     return SDValue();
 
   if (MaskSize != InSize)
     return SDValue();
 
-  int ISDNo = 0;
-  MVT OpTy;
-
-  switch (VT.getSimpleVT().SimpleTy) {
-  default: return SDValue();
-  case MVT::v8i16:
-           ISDNo = X86ISD::BLENDPW;
-           OpTy = MVT::v8i16;
-           break;
-  case MVT::v4i32:
-  case MVT::v4f32:
-           ISDNo = X86ISD::BLENDPS;
-           OpTy = MVT::v4f32;
-           break;
-  case MVT::v2i64:
-  case MVT::v2f64:
-           ISDNo = X86ISD::BLENDPD;
-           OpTy = MVT::v2f64;
-           break;
-  case MVT::v8i32:
-  case MVT::v8f32:
-           if (!Subtarget->hasAVX())
-             return SDValue();
-           ISDNo = X86ISD::BLENDPS;
-           OpTy = MVT::v8f32;
-           break;
-  case MVT::v4i64:
-  case MVT::v4f64:
-           if (!Subtarget->hasAVX())
-             return SDValue();
-           ISDNo = X86ISD::BLENDPD;
-           OpTy = MVT::v4f64;
-           break;
-  case MVT::v16i16:
-           if (!Subtarget->hasAVX2())
-             return SDValue();
-           ISDNo = X86ISD::BLENDPW;
-           OpTy = MVT::v16i16;
-           break;
-  }
-  assert(ISDNo && "Invalid Op Number");
-
-  unsigned MaskVals = 0;
+  SmallVector<Constant*,2> MaskVals;
+  ConstantInt *Zero = ConstantInt::get(*Context, APInt(EltSize, 0));
+  ConstantInt *NegOne = ConstantInt::get(*Context, APInt(EltSize, -1));
 
   for (int i = 0; i < MaskSize; ++i) {
     int EltIdx = SVOp->getMaskElt(i);
     if (EltIdx == i || EltIdx == -1)
-      MaskVals |= (1<<i);
+      MaskVals.push_back(NegOne);
     else if (EltIdx == (i + MaskSize))
-      continue; // Bit is set to zero;
+      MaskVals.push_back(Zero);
     else return SDValue();
   }
 
-  V1 = DAG.getNode(ISD::BITCAST, dl, OpTy, V1);
-  V2 = DAG.getNode(ISD::BITCAST, dl, OpTy, V2);
-  SDValue Ret =  DAG.getNode(ISDNo, dl, OpTy, V1, V2,
-                             DAG.getConstant(MaskVals, MVT::i32));
-  return DAG.getNode(ISD::BITCAST, dl, VT, Ret);
+  Constant *MaskC = ConstantVector::get(MaskVals);
+  EVT MaskTy = EVT::getEVT(MaskC->getType());
+  assert(MaskTy.getSizeInBits() == VT.getSizeInBits() && "Invalid mask size");
+  SDValue MaskIdx = DAG.getConstantPool(MaskC, PtrTy);
+  unsigned Alignment = cast<ConstantPoolSDNode>(MaskIdx)->getAlignment();
+  SDValue Mask = DAG.getLoad(MaskTy, dl, DAG.getEntryNode(), MaskIdx,
+                             MachinePointerInfo::getConstantPool(),
+                             false, false, false, Alignment);
+
+  if (Subtarget->hasAVX2() && MaskTy == MVT::v32i8)
+    return DAG.getNode(ISD::VSELECT, dl, VT, Mask, V1, V2);
+
+  if (Subtarget->hasAVX()) {
+    switch (MaskTy.getSimpleVT().SimpleTy) {
+    default: return SDValue();
+    case MVT::v16i8:
+    case MVT::v4i32:
+    case MVT::v2i64:
+    case MVT::v8i32:
+    case MVT::v4i64:
+             return DAG.getNode(ISD::VSELECT, dl, VT, Mask, V1, V2);
+    }
+  }
+
+  return SDValue();
 }
 
 // v8i16 shuffles - Prefer shuffles in the following order:
@@ -11066,9 +11050,6 @@
   case X86ISD::ANDNP:              return "X86ISD::ANDNP";
   case X86ISD::PSIGN:              return "X86ISD::PSIGN";
   case X86ISD::BLENDV:             return "X86ISD::BLENDV";
-  case X86ISD::BLENDPW:            return "X86ISD::BLENDPW";
-  case X86ISD::BLENDPS:            return "X86ISD::BLENDPS";
-  case X86ISD::BLENDPD:            return "X86ISD::BLENDPD";
   case X86ISD::HADD:               return "X86ISD::HADD";
   case X86ISD::HSUB:               return "X86ISD::HSUB";
   case X86ISD::FHADD:              return "X86ISD::FHADD";

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.h?rev=154425&r1=154424&r2=154425&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.h (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.h Tue Apr 10 14:33:16 2012
@@ -175,14 +175,9 @@
       /// PSIGN - Copy integer sign.
       PSIGN,
 
-      /// BLENDV - Blend where the selector is an XMM.
+      /// BLEND family of opcodes
       BLENDV,
 
-      /// BLENDxx - Blend where the selector is an immediate.
-      BLENDPW,
-      BLENDPS,
-      BLENDPD,
-
       /// HADD - Integer horizontal add.
       HADD,
 

Modified: llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td?rev=154425&r1=154424&r2=154425&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td Tue Apr 10 14:33:16 2012
@@ -126,8 +126,6 @@
                                  SDTCisSameAs<0,2>, SDTCisInt<3>]>;
 
 def SDTVBroadcast : SDTypeProfile<1, 1, [SDTCisVec<0>]>;
-def SDTBlend : SDTypeProfile<1, 3, [SDTCisVec<0>, SDTCisSameAs<0,1>,
-SDTCisSameAs<1,2>, SDTCisVT<3, i32>]>;
 
 def X86PAlign : SDNode<"X86ISD::PALIGN", SDTShuff3OpI>;
 
@@ -160,10 +158,6 @@
 
 def X86VBroadcast : SDNode<"X86ISD::VBROADCAST", SDTVBroadcast>;
 
-def X86Blendpw : SDNode<"X86ISD::BLENDPW", SDTBlend>;
-def X86Blendps : SDNode<"X86ISD::BLENDPS", SDTBlend>;
-def X86Blendpd : SDNode<"X86ISD::BLENDPD", SDTBlend>;
-
 //===----------------------------------------------------------------------===//
 // SSE Complex Patterns
 //===----------------------------------------------------------------------===//

Modified: llvm/trunk/lib/Target/X86/X86InstrSSE.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrSSE.td?rev=154425&r1=154424&r2=154425&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrSSE.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrSSE.td Tue Apr 10 14:33:16 2012
@@ -6735,22 +6735,12 @@
   def : Pat<(v4f64 (vselect (v4i64 VR256:$mask), (v4f64 VR256:$src1),
                             (v4f64 VR256:$src2))),
             (VBLENDVPDYrr VR256:$src2, VR256:$src1, VR256:$mask)>;
-
-  def : Pat<(v8f32 (X86Blendps (v8f32 VR256:$src1), (v8f32 VR256:$src2),
-                               (imm:$mask))),
-            (VBLENDPSYrri VR256:$src2, VR256:$src1, imm:$mask)>;
-  def : Pat<(v4f64 (X86Blendpd (v4f64 VR256:$src1), (v4f64 VR256:$src2),
-                               (imm:$mask))),
-            (VBLENDPDYrri VR256:$src2, VR256:$src1, imm:$mask)>;
 }
 
 let Predicates = [HasAVX2] in {
   def : Pat<(v32i8 (vselect (v32i8 VR256:$mask), (v32i8 VR256:$src1),
                             (v32i8 VR256:$src2))),
             (VPBLENDVBYrr VR256:$src2, VR256:$src1, VR256:$mask)>;
-  def : Pat<(v16i16 (X86Blendpw (v16i16 VR256:$src1), (v16i16 VR256:$src2),
-                               (imm:$mask))),
-            (VPBLENDWYrri VR256:$src2, VR256:$src1, imm:$mask)>;
 }
 
 /// SS41I_ternary_int - SSE 4.1 ternary operator
@@ -6799,17 +6789,6 @@
   def : Pat<(v2f64 (vselect (v2i64 XMM0), (v2f64 VR128:$src1),
                             (v2f64 VR128:$src2))),
             (BLENDVPDrr0 VR128:$src2, VR128:$src1)>;
-
-  def : Pat<(v8i16 (X86Blendpw (v8i16 VR128:$src1), (v8i16 VR128:$src2),
-                               (imm:$mask))),
-            (VPBLENDWrri VR128:$src2, VR128:$src1, imm:$mask)>;
-  def : Pat<(v4f32 (X86Blendps (v4f32 VR128:$src1), (v4f32 VR128:$src2),
-                               (imm:$mask))),
-            (VBLENDPSrri VR128:$src2, VR128:$src1, imm:$mask)>;
-  def : Pat<(v2f64 (X86Blendpd (v2f64 VR128:$src1), (v2f64 VR128:$src2),
-                               (imm:$mask))),
-            (VBLENDPDrri VR128:$src2, VR128:$src1, imm:$mask)>;
-
 }
 
 let Predicates = [HasAVX] in

Modified: llvm/trunk/test/CodeGen/X86/avx-shuffle.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx-shuffle.ll?rev=154425&r1=154424&r2=154425&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/avx-shuffle.ll (original)
+++ llvm/trunk/test/CodeGen/X86/avx-shuffle.ll Tue Apr 10 14:33:16 2012
@@ -164,7 +164,7 @@
 }
 
 ; CHECK: blend1
-; CHECK: vblendps
+; CHECK: vblendvps
 ; CHECK: ret
 define <4 x i32> @blend1(<4 x i32> %a, <4 x i32> %b) nounwind alwaysinline {
   %t = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 7>
@@ -172,7 +172,7 @@
 }
 
 ; CHECK: blend2
-; CHECK: vblendps
+; CHECK: vblendvps
 ; CHECK: ret
 define <4 x i32> @blend2(<4 x i32> %a, <4 x i32> %b) nounwind alwaysinline {
   %t = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 0, i32 5, i32 2, i32 7>
@@ -180,7 +180,7 @@
 }
 
 ; CHECK: blend2a
-; CHECK: vblendps
+; CHECK: vblendvps
 ; CHECK: ret
 define <4 x float> @blend2a(<4 x float> %a, <4 x float> %b) nounwind alwaysinline {
   %t = shufflevector <4 x float> %a, <4 x float> %b, <4 x i32> <i32 0, i32 5, i32 2, i32 7>
@@ -188,7 +188,7 @@
 }
 
 ; CHECK: blend3
-; CHECK-NOT: vblendps
+; CHECK-NOT: vblendvps
 ; CHECK: ret
 define <4 x i32> @blend3(<4 x i32> %a, <4 x i32> %b) nounwind alwaysinline {
   %t = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 1, i32 5, i32 2, i32 7>
@@ -196,7 +196,7 @@
 }
 
 ; CHECK: blend4
-; CHECK: vblendpd
+; CHECK: vblendvpd
 ; CHECK: ret
 define <4 x i64> @blend4(<4 x i64> %a, <4 x i64> %b) nounwind alwaysinline {
   %t = shufflevector <4 x i64> %a, <4 x i64> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 7>

Modified: llvm/trunk/test/CodeGen/X86/vec_shuffle-20.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/vec_shuffle-20.ll?rev=154425&r1=154424&r2=154425&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/vec_shuffle-20.ll (original)
+++ llvm/trunk/test/CodeGen/X86/vec_shuffle-20.ll Tue Apr 10 14:33:16 2012
@@ -1,4 +1,4 @@
-; RUN: llc < %s -o /dev/null -march=x86 -mattr=+sse2 -mtriple=i686-apple-darwin9 -stats -info-output-file - | grep asm-printer | grep 2
+; RUN: llc < %s -o /dev/null -march=x86 -mattr=+sse2 -mtriple=i686-apple-darwin9 -stats -info-output-file - | grep asm-printer | grep 3
 
 define <4 x float> @func(<4 x float> %fp0, <4 x float> %fp1) nounwind  {
 entry:





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