[llvm-commits] [llvm] r83568 - in /llvm/trunk: lib/Target/ARM/ARMISelDAGToDAG.cpp lib/Target/ARM/ARMInstrNEON.td lib/Target/ARM/NEONPreAllocPass.cpp test/CodeGen/ARM/vldlane.ll
Bob Wilson
bob.wilson at apple.com
Thu Oct 8 11:56:11 PDT 2009
Author: bwilson
Date: Thu Oct 8 13:56:10 2009
New Revision: 83568
URL: http://llvm.org/viewvc/llvm-project?rev=83568&view=rev
Log:
Add codegen support for NEON vld2lane intrinsics with 128-bit vectors.
Modified:
llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp
llvm/trunk/lib/Target/ARM/ARMInstrNEON.td
llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp
llvm/trunk/test/CodeGen/ARM/vldlane.ll
Modified: llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp?rev=83568&r1=83567&r2=83568&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp Thu Oct 8 13:56:10 2009
@@ -1510,18 +1510,67 @@
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(2), MemAddr, MemUpdate, MemOpc))
return NULL;
+ if (VT.is64BitVector()) {
+ switch (VT.getSimpleVT().SimpleTy) {
+ default: llvm_unreachable("unhandled vld2lane type");
+ case MVT::v8i8: Opc = ARM::VLD2LNd8; break;
+ case MVT::v4i16: Opc = ARM::VLD2LNd16; break;
+ case MVT::v2f32:
+ case MVT::v2i32: Opc = ARM::VLD2LNd32; break;
+ }
+ SDValue Chain = N->getOperand(0);
+ const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
+ N->getOperand(3), N->getOperand(4),
+ N->getOperand(5), Chain };
+ return CurDAG->getMachineNode(Opc, dl, VT, VT, MVT::Other, Ops, 7);
+ }
+ // Quad registers are handled by extracting subregs, doing the load,
+ // and then inserting the results as subregs.
+ EVT RegVT;
+ unsigned Opc2 = 0;
switch (VT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled vld2lane type");
- case MVT::v8i8: Opc = ARM::VLD2LNd8; break;
- case MVT::v4i16: Opc = ARM::VLD2LNd16; break;
- case MVT::v2f32:
- case MVT::v2i32: Opc = ARM::VLD2LNd32; break;
+ case MVT::v8i16:
+ Opc = ARM::VLD2LNq16a;
+ Opc2 = ARM::VLD2LNq16b;
+ RegVT = MVT::v4i16;
+ break;
+ case MVT::v4f32:
+ Opc = ARM::VLD2LNq32a;
+ Opc2 = ARM::VLD2LNq32b;
+ RegVT = MVT::v2f32;
+ break;
+ case MVT::v4i32:
+ Opc = ARM::VLD2LNq32a;
+ Opc2 = ARM::VLD2LNq32b;
+ RegVT = MVT::v2i32;
+ break;
}
SDValue Chain = N->getOperand(0);
- const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
- N->getOperand(3), N->getOperand(4),
- N->getOperand(5), Chain };
- return CurDAG->getMachineNode(Opc, dl, VT, VT, MVT::Other, Ops, 7);
+ unsigned Lane = cast<ConstantSDNode>(N->getOperand(5))->getZExtValue();
+ unsigned NumElts = RegVT.getVectorNumElements();
+ int SubregIdx = (Lane < NumElts) ? ARM::DSUBREG_0 : ARM::DSUBREG_1;
+
+ SDValue D0 = CurDAG->getTargetExtractSubreg(SubregIdx, dl, RegVT,
+ N->getOperand(3));
+ SDValue D1 = CurDAG->getTargetExtractSubreg(SubregIdx, dl, RegVT,
+ N->getOperand(4));
+ const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc, D0, D1,
+ getI32Imm(Lane % NumElts), Chain };
+ SDNode *VLdLn = CurDAG->getMachineNode((Lane < NumElts) ? Opc : Opc2,
+ dl, RegVT, RegVT, MVT::Other,
+ Ops, 7);
+ SDValue Q0 = CurDAG->getTargetInsertSubreg(SubregIdx, dl, VT,
+ N->getOperand(3),
+ SDValue(VLdLn, 0));
+ SDValue Q1 = CurDAG->getTargetInsertSubreg(SubregIdx, dl, VT,
+ N->getOperand(4),
+ SDValue(VLdLn, 1));
+ Chain = SDValue(VLdLn, 2);
+ ReplaceUses(SDValue(N, 0), Q0);
+ ReplaceUses(SDValue(N, 1), Q1);
+ ReplaceUses(SDValue(N, 2), Chain);
+ return NULL;
}
case Intrinsic::arm_neon_vld3lane: {
Modified: llvm/trunk/lib/Target/ARM/ARMInstrNEON.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrNEON.td?rev=83568&r1=83567&r2=83568&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrNEON.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrNEON.td Thu Oct 8 13:56:10 2009
@@ -266,16 +266,24 @@
// FIXME: Not yet implemented.
// VLD2LN : Vector Load (single 2-element structure to one lane)
-class VLD2LND<bits<4> op11_8, string OpcodeStr>
+class VLD2LN<bits<4> op11_8, string OpcodeStr>
: NLdSt<1,0b10,op11_8,0b0000, (outs DPR:$dst1, DPR:$dst2),
(ins addrmode6:$addr, DPR:$src1, DPR:$src2, nohash_imm:$lane),
IIC_VLD2,
!strconcat(OpcodeStr, "\t\\{$dst1[$lane],$dst2[$lane]\\}, $addr"),
"$src1 = $dst1, $src2 = $dst2", []>;
-def VLD2LNd8 : VLD2LND<0b0001, "vld2.8">;
-def VLD2LNd16 : VLD2LND<0b0101, "vld2.16">;
-def VLD2LNd32 : VLD2LND<0b1001, "vld2.32">;
+def VLD2LNd8 : VLD2LN<0b0001, "vld2.8">;
+def VLD2LNd16 : VLD2LN<0b0101, "vld2.16">;
+def VLD2LNd32 : VLD2LN<0b1001, "vld2.32">;
+
+// vld2 to double-spaced even registers.
+def VLD2LNq16a: VLD2LN<0b0101, "vld2.16">;
+def VLD2LNq32a: VLD2LN<0b1001, "vld2.32">;
+
+// vld2 to double-spaced odd registers.
+def VLD2LNq16b: VLD2LN<0b0101, "vld2.16">;
+def VLD2LNq32b: VLD2LN<0b1001, "vld2.32">;
// VLD3LN : Vector Load (single 3-element structure to one lane)
class VLD3LND<bits<4> op11_8, string OpcodeStr>
Modified: llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp?rev=83568&r1=83567&r2=83568&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp (original)
+++ llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp Thu Oct 8 13:56:10 2009
@@ -57,6 +57,22 @@
NumRegs = 2;
return true;
+ case ARM::VLD2LNq16a:
+ case ARM::VLD2LNq32a:
+ FirstOpnd = 0;
+ NumRegs = 2;
+ Offset = 0;
+ Stride = 2;
+ return true;
+
+ case ARM::VLD2LNq16b:
+ case ARM::VLD2LNq32b:
+ FirstOpnd = 0;
+ NumRegs = 2;
+ Offset = 1;
+ Stride = 2;
+ return true;
+
case ARM::VLD2q8:
case ARM::VLD2q16:
case ARM::VLD2q32:
Modified: llvm/trunk/test/CodeGen/ARM/vldlane.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/vldlane.ll?rev=83568&r1=83567&r2=83568&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/vldlane.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/vldlane.ll Thu Oct 8 13:56:10 2009
@@ -5,6 +5,10 @@
%struct.__neon_int32x2x2_t = type { <2 x i32>, <2 x i32> }
%struct.__neon_float32x2x2_t = type { <2 x float>, <2 x float> }
+%struct.__neon_int16x8x2_t = type { <8 x i16>, <8 x i16> }
+%struct.__neon_int32x4x2_t = type { <4 x i32>, <4 x i32> }
+%struct.__neon_float32x4x2_t = type { <4 x float>, <4 x float> }
+
define <8 x i8> @vld2lanei8(i8* %A, <8 x i8>* %B) nounwind {
;CHECK: vld2lanei8:
;CHECK: vld2.8
@@ -49,11 +53,48 @@
ret <2 x float> %tmp5
}
+define <8 x i16> @vld2laneQi16(i16* %A, <8 x i16>* %B) nounwind {
+;CHECK: vld2laneQi16:
+;CHECK: vld2.16
+ %tmp1 = load <8 x i16>* %B
+ %tmp2 = call %struct.__neon_int16x8x2_t @llvm.arm.neon.vld2lane.v8i16(i16* %A, <8 x i16> %tmp1, <8 x i16> %tmp1, i32 1)
+ %tmp3 = extractvalue %struct.__neon_int16x8x2_t %tmp2, 0
+ %tmp4 = extractvalue %struct.__neon_int16x8x2_t %tmp2, 1
+ %tmp5 = add <8 x i16> %tmp3, %tmp4
+ ret <8 x i16> %tmp5
+}
+
+define <4 x i32> @vld2laneQi32(i32* %A, <4 x i32>* %B) nounwind {
+;CHECK: vld2laneQi32:
+;CHECK: vld2.32
+ %tmp1 = load <4 x i32>* %B
+ %tmp2 = call %struct.__neon_int32x4x2_t @llvm.arm.neon.vld2lane.v4i32(i32* %A, <4 x i32> %tmp1, <4 x i32> %tmp1, i32 2)
+ %tmp3 = extractvalue %struct.__neon_int32x4x2_t %tmp2, 0
+ %tmp4 = extractvalue %struct.__neon_int32x4x2_t %tmp2, 1
+ %tmp5 = add <4 x i32> %tmp3, %tmp4
+ ret <4 x i32> %tmp5
+}
+
+define <4 x float> @vld2laneQf(float* %A, <4 x float>* %B) nounwind {
+;CHECK: vld2laneQf:
+;CHECK: vld2.32
+ %tmp1 = load <4 x float>* %B
+ %tmp2 = call %struct.__neon_float32x4x2_t @llvm.arm.neon.vld2lane.v4f32(float* %A, <4 x float> %tmp1, <4 x float> %tmp1, i32 1)
+ %tmp3 = extractvalue %struct.__neon_float32x4x2_t %tmp2, 0
+ %tmp4 = extractvalue %struct.__neon_float32x4x2_t %tmp2, 1
+ %tmp5 = add <4 x float> %tmp3, %tmp4
+ ret <4 x float> %tmp5
+}
+
declare %struct.__neon_int8x8x2_t @llvm.arm.neon.vld2lane.v8i8(i8*, <8 x i8>, <8 x i8>, i32) nounwind readonly
declare %struct.__neon_int16x4x2_t @llvm.arm.neon.vld2lane.v4i16(i8*, <4 x i16>, <4 x i16>, i32) nounwind readonly
declare %struct.__neon_int32x2x2_t @llvm.arm.neon.vld2lane.v2i32(i8*, <2 x i32>, <2 x i32>, i32) nounwind readonly
declare %struct.__neon_float32x2x2_t @llvm.arm.neon.vld2lane.v2f32(i8*, <2 x float>, <2 x float>, i32) nounwind readonly
+declare %struct.__neon_int16x8x2_t @llvm.arm.neon.vld2lane.v8i16(i8*, <8 x i16>, <8 x i16>, i32) nounwind readonly
+declare %struct.__neon_int32x4x2_t @llvm.arm.neon.vld2lane.v4i32(i8*, <4 x i32>, <4 x i32>, i32) nounwind readonly
+declare %struct.__neon_float32x4x2_t @llvm.arm.neon.vld2lane.v4f32(i8*, <4 x float>, <4 x float>, i32) nounwind readonly
+
%struct.__neon_int8x8x3_t = type { <8 x i8>, <8 x i8>, <8 x i8> }
%struct.__neon_int16x4x3_t = type { <4 x i16>, <4 x i16>, <4 x i16> }
%struct.__neon_int32x2x3_t = type { <2 x i32>, <2 x i32>, <2 x i32> }
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