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-rw-r--r--llvm/lib/Target/X86/X86ISelLowering.cpp89
-rw-r--r--llvm/lib/Target/X86/X86ISelLowering.h7
-rw-r--r--llvm/lib/Target/X86/X86InstrFragmentsSIMD.td6
-rw-r--r--llvm/lib/Target/X86/X86InstrSSE.td21
4 files changed, 36 insertions, 87 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index d662d12b7a1..4f14a0e20b4 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -5391,75 +5391,59 @@ static SDValue LowerVECTOR_SHUFFLEtoBlend(SDValue Op,
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 @@ const char *X86TargetLowering::getTargetNodeName(unsigned Opcode) const {
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";
diff --git a/llvm/lib/Target/X86/X86ISelLowering.h b/llvm/lib/Target/X86/X86ISelLowering.h
index 4e0073365a7..ca8efe64dd4 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.h
+++ b/llvm/lib/Target/X86/X86ISelLowering.h
@@ -175,14 +175,9 @@ namespace llvm {
/// 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,
diff --git a/llvm/lib/Target/X86/X86InstrFragmentsSIMD.td b/llvm/lib/Target/X86/X86InstrFragmentsSIMD.td
index 041a64f336f..ae3ed1bcb32 100644
--- a/llvm/lib/Target/X86/X86InstrFragmentsSIMD.td
+++ b/llvm/lib/Target/X86/X86InstrFragmentsSIMD.td
@@ -126,8 +126,6 @@ def SDTShuff3OpI : SDTypeProfile<1, 3, [SDTCisVec<0>, SDTCisSameAs<0,1>,
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 X86VPerm2x128 : SDNode<"X86ISD::VPERM2X128", SDTShuff3OpI>;
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
//===----------------------------------------------------------------------===//
diff --git a/llvm/lib/Target/X86/X86InstrSSE.td b/llvm/lib/Target/X86/X86InstrSSE.td
index 7741f409db0..f4e44184915 100644
--- a/llvm/lib/Target/X86/X86InstrSSE.td
+++ b/llvm/lib/Target/X86/X86InstrSSE.td
@@ -6735,22 +6735,12 @@ let Predicates = [HasAVX] in {
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 @@ let Predicates = [HasSSE41] in {
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
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