[llvm-commits] [llvm] r83479 - in /llvm/trunk: lib/Target/ARM/ARMISelDAGToDAG.cpp lib/Target/ARM/ARMInstrNEON.td lib/Target/ARM/NEONPreAllocPass.cpp test/CodeGen/ARM/vld4.ll
Bob Wilson
bob.wilson at apple.com
Wed Oct 7 11:09:32 PDT 2009
Author: bwilson
Date: Wed Oct 7 13:09:32 2009
New Revision: 83479
URL: http://llvm.org/viewvc/llvm-project?rev=83479&view=rev
Log:
Add codegen support for NEON vld4 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/vld4.ll
Modified: llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp?rev=83479&r1=83478&r2=83479&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp Wed Oct 7 13:09:32 2009
@@ -1445,18 +1445,61 @@
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 vld4 type");
+ case MVT::v8i8: Opc = ARM::VLD4d8; break;
+ case MVT::v4i16: Opc = ARM::VLD4d16; break;
+ case MVT::v2f32:
+ case MVT::v2i32: Opc = ARM::VLD4d32; break;
+ }
+ SDValue Chain = N->getOperand(0);
+ const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc, Chain };
+ std::vector<EVT> ResTys(4, VT);
+ ResTys.push_back(MVT::Other);
+ return CurDAG->getMachineNode(Opc, dl, ResTys, Ops, 4);
+ }
+ // Quad registers are loaded with two separate instructions, where one
+ // loads the even registers and the other loads the odd registers.
+ EVT RegVT = VT;
+ unsigned Opc2 = 0;
switch (VT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled vld4 type");
- case MVT::v8i8: Opc = ARM::VLD4d8; break;
- case MVT::v4i16: Opc = ARM::VLD4d16; break;
- case MVT::v2f32:
- case MVT::v2i32: Opc = ARM::VLD4d32; break;
+ case MVT::v16i8:
+ Opc = ARM::VLD4q8a; Opc2 = ARM::VLD4q8b; RegVT = MVT::v8i8; break;
+ case MVT::v8i16:
+ Opc = ARM::VLD4q16a; Opc2 = ARM::VLD4q16b; RegVT = MVT::v4i16; break;
+ case MVT::v4f32:
+ Opc = ARM::VLD4q32a; Opc2 = ARM::VLD4q32b; RegVT = MVT::v2f32; break;
+ case MVT::v4i32:
+ Opc = ARM::VLD4q32a; Opc2 = ARM::VLD4q32b; RegVT = MVT::v2i32; break;
}
SDValue Chain = N->getOperand(0);
- const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc, Chain };
- std::vector<EVT> ResTys(4, VT);
+ // Enable writeback to the address register.
+ MemOpc = CurDAG->getTargetConstant(ARM_AM::getAM6Opc(true), MVT::i32);
+
+ std::vector<EVT> ResTys(4, RegVT);
+ ResTys.push_back(MemAddr.getValueType());
ResTys.push_back(MVT::Other);
- return CurDAG->getMachineNode(Opc, dl, ResTys, Ops, 4);
+
+ const SDValue OpsA[] = { MemAddr, MemUpdate, MemOpc, Chain };
+ SDNode *VLdA = CurDAG->getMachineNode(Opc, dl, ResTys, OpsA, 4);
+ Chain = SDValue(VLdA, 5);
+
+ const SDValue OpsB[] = { SDValue(VLdA, 4), MemUpdate, MemOpc, Chain };
+ SDNode *VLdB = CurDAG->getMachineNode(Opc2, dl, ResTys, OpsB, 4);
+ Chain = SDValue(VLdB, 5);
+
+ SDNode *Q0 = PairDRegs(VT, SDValue(VLdA, 0), SDValue(VLdB, 0));
+ SDNode *Q1 = PairDRegs(VT, SDValue(VLdA, 1), SDValue(VLdB, 1));
+ SDNode *Q2 = PairDRegs(VT, SDValue(VLdA, 2), SDValue(VLdB, 2));
+ SDNode *Q3 = PairDRegs(VT, SDValue(VLdA, 3), SDValue(VLdB, 3));
+ ReplaceUses(SDValue(N, 0), SDValue(Q0, 0));
+ ReplaceUses(SDValue(N, 1), SDValue(Q1, 0));
+ ReplaceUses(SDValue(N, 2), SDValue(Q2, 0));
+ ReplaceUses(SDValue(N, 3), SDValue(Q3, 0));
+ ReplaceUses(SDValue(N, 4), Chain);
+ return NULL;
}
case Intrinsic::arm_neon_vld2lane: {
Modified: llvm/trunk/lib/Target/ARM/ARMInstrNEON.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrNEON.td?rev=83479&r1=83478&r2=83479&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrNEON.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrNEON.td Wed Oct 7 13:09:32 2009
@@ -227,11 +227,26 @@
(ins addrmode6:$addr), IIC_VLD4,
!strconcat(OpcodeStr, "\t\\{$dst1,$dst2,$dst3,$dst4\\}, $addr"),
"", []>;
+class VLD4WB<string OpcodeStr>
+ : NLdSt<(outs DPR:$dst1, DPR:$dst2, DPR:$dst3, DPR:$dst4, GPR:$wb),
+ (ins addrmode6:$addr), IIC_VLD4,
+ !strconcat(OpcodeStr, "\t\\{$dst1,$dst2,$dst3,$dst4\\}, $addr"),
+ "$addr.addr = $wb", []>;
def VLD4d8 : VLD4D<"vld4.8">;
def VLD4d16 : VLD4D<"vld4.16">;
def VLD4d32 : VLD4D<"vld4.32">;
+// vld4 to double-spaced even registers.
+def VLD4q8a : VLD4WB<"vld4.8">;
+def VLD4q16a : VLD4WB<"vld4.16">;
+def VLD4q32a : VLD4WB<"vld4.32">;
+
+// vld4 to double-spaced odd registers.
+def VLD4q8b : VLD4WB<"vld4.8">;
+def VLD4q16b : VLD4WB<"vld4.16">;
+def VLD4q32b : VLD4WB<"vld4.32">;
+
// VLD2LN : Vector Load (single 2-element structure to one lane)
class VLD2LND<string OpcodeStr>
: NLdSt<(outs DPR:$dst1, DPR:$dst2),
Modified: llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp?rev=83479&r1=83478&r2=83479&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp (original)
+++ llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp Wed Oct 7 13:09:32 2009
@@ -101,6 +101,24 @@
NumRegs = 4;
return true;
+ case ARM::VLD4q8a:
+ case ARM::VLD4q16a:
+ case ARM::VLD4q32a:
+ FirstOpnd = 0;
+ NumRegs = 4;
+ Offset = 0;
+ Stride = 2;
+ return true;
+
+ case ARM::VLD4q8b:
+ case ARM::VLD4q16b:
+ case ARM::VLD4q32b:
+ FirstOpnd = 0;
+ NumRegs = 4;
+ Offset = 1;
+ Stride = 2;
+ return true;
+
case ARM::VST2d8:
case ARM::VST2d16:
case ARM::VST2d32:
Modified: llvm/trunk/test/CodeGen/ARM/vld4.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/vld4.ll?rev=83479&r1=83478&r2=83479&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/vld4.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/vld4.ll Wed Oct 7 13:09:32 2009
@@ -5,6 +5,11 @@
%struct.__neon_int32x2x4_t = type { <2 x i32>, <2 x i32>, <2 x i32>, <2 x i32> }
%struct.__neon_float32x2x4_t = type { <2 x float>, <2 x float>, <2 x float>, <2 x float> }
+%struct.__neon_int8x16x4_t = type { <16 x i8>, <16 x i8>, <16 x i8>, <16 x i8> }
+%struct.__neon_int16x8x4_t = type { <8 x i16>, <8 x i16>, <8 x i16>, <8 x i16> }
+%struct.__neon_int32x4x4_t = type { <4 x i32>, <4 x i32>, <4 x i32>, <4 x i32> }
+%struct.__neon_float32x4x4_t = type { <4 x float>, <4 x float>, <4 x float>, <4 x float> }
+
define <8 x i8> @vld4i8(i8* %A) nounwind {
;CHECK: vld4i8:
;CHECK: vld4.8
@@ -45,7 +50,56 @@
ret <2 x float> %tmp4
}
+define <16 x i8> @vld4Qi8(i8* %A) nounwind {
+;CHECK: vld4Qi8:
+;CHECK: vld4.8
+;CHECK: vld4.8
+ %tmp1 = call %struct.__neon_int8x16x4_t @llvm.arm.neon.vld4.v16i8(i8* %A)
+ %tmp2 = extractvalue %struct.__neon_int8x16x4_t %tmp1, 0
+ %tmp3 = extractvalue %struct.__neon_int8x16x4_t %tmp1, 2
+ %tmp4 = add <16 x i8> %tmp2, %tmp3
+ ret <16 x i8> %tmp4
+}
+
+define <8 x i16> @vld4Qi16(i16* %A) nounwind {
+;CHECK: vld4Qi16:
+;CHECK: vld4.16
+;CHECK: vld4.16
+ %tmp1 = call %struct.__neon_int16x8x4_t @llvm.arm.neon.vld4.v8i16(i16* %A)
+ %tmp2 = extractvalue %struct.__neon_int16x8x4_t %tmp1, 0
+ %tmp3 = extractvalue %struct.__neon_int16x8x4_t %tmp1, 2
+ %tmp4 = add <8 x i16> %tmp2, %tmp3
+ ret <8 x i16> %tmp4
+}
+
+define <4 x i32> @vld4Qi32(i32* %A) nounwind {
+;CHECK: vld4Qi32:
+;CHECK: vld4.32
+;CHECK: vld4.32
+ %tmp1 = call %struct.__neon_int32x4x4_t @llvm.arm.neon.vld4.v4i32(i32* %A)
+ %tmp2 = extractvalue %struct.__neon_int32x4x4_t %tmp1, 0
+ %tmp3 = extractvalue %struct.__neon_int32x4x4_t %tmp1, 2
+ %tmp4 = add <4 x i32> %tmp2, %tmp3
+ ret <4 x i32> %tmp4
+}
+
+define <4 x float> @vld4Qf(float* %A) nounwind {
+;CHECK: vld4Qf:
+;CHECK: vld4.32
+;CHECK: vld4.32
+ %tmp1 = call %struct.__neon_float32x4x4_t @llvm.arm.neon.vld4.v4f32(float* %A)
+ %tmp2 = extractvalue %struct.__neon_float32x4x4_t %tmp1, 0
+ %tmp3 = extractvalue %struct.__neon_float32x4x4_t %tmp1, 2
+ %tmp4 = add <4 x float> %tmp2, %tmp3
+ ret <4 x float> %tmp4
+}
+
declare %struct.__neon_int8x8x4_t @llvm.arm.neon.vld4.v8i8(i8*) nounwind readonly
declare %struct.__neon_int16x4x4_t @llvm.arm.neon.vld4.v4i16(i8*) nounwind readonly
declare %struct.__neon_int32x2x4_t @llvm.arm.neon.vld4.v2i32(i8*) nounwind readonly
declare %struct.__neon_float32x2x4_t @llvm.arm.neon.vld4.v2f32(i8*) nounwind readonly
+
+declare %struct.__neon_int8x16x4_t @llvm.arm.neon.vld4.v16i8(i8*) nounwind readonly
+declare %struct.__neon_int16x8x4_t @llvm.arm.neon.vld4.v8i16(i8*) nounwind readonly
+declare %struct.__neon_int32x4x4_t @llvm.arm.neon.vld4.v4i32(i8*) nounwind readonly
+declare %struct.__neon_float32x4x4_t @llvm.arm.neon.vld4.v4f32(i8*) nounwind readonly
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