[llvm-commits] [llvm] r83600 - in /llvm/trunk: lib/Target/ARM/ARMISelDAGToDAG.cpp lib/Target/ARM/ARMInstrNEON.td lib/Target/ARM/NEONPreAllocPass.cpp test/CodeGen/ARM/vstlane.ll
Bob Wilson
bob.wilson at apple.com
Thu Oct 8 17:01:36 PDT 2009
Author: bwilson
Date: Thu Oct 8 19:01:36 2009
New Revision: 83600
URL: http://llvm.org/viewvc/llvm-project?rev=83600&view=rev
Log:
Add codegen support for NEON vst4lane 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/vstlane.ll
Modified: llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp?rev=83600&r1=83599&r2=83600&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp Thu Oct 8 19:01:36 2009
@@ -2025,19 +2025,61 @@
SDValue MemAddr, MemUpdate, MemOpc;
if (!SelectAddrMode6(Op, N->getOperand(2), MemAddr, MemUpdate, MemOpc))
return NULL;
- switch (N->getOperand(3).getValueType().getSimpleVT().SimpleTy) {
+ VT = N->getOperand(3).getValueType();
+ if (VT.is64BitVector()) {
+ switch (VT.getSimpleVT().SimpleTy) {
+ default: llvm_unreachable("unhandled vst4lane type");
+ case MVT::v8i8: Opc = ARM::VST4LNd8; break;
+ case MVT::v4i16: Opc = ARM::VST4LNd16; break;
+ case MVT::v2f32:
+ case MVT::v2i32: Opc = ARM::VST4LNd32; break;
+ }
+ SDValue Chain = N->getOperand(0);
+ const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
+ N->getOperand(3), N->getOperand(4),
+ N->getOperand(5), N->getOperand(6),
+ N->getOperand(7), Chain };
+ return CurDAG->getMachineNode(Opc, dl, MVT::Other, Ops, 9);
+ }
+ // Quad registers are handled by extracting subregs and then doing
+ // the store.
+ EVT RegVT;
+ unsigned Opc2 = 0;
+ switch (VT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("unhandled vst4lane type");
- case MVT::v8i8: Opc = ARM::VST4LNd8; break;
- case MVT::v4i16: Opc = ARM::VST4LNd16; break;
- case MVT::v2f32:
- case MVT::v2i32: Opc = ARM::VST4LNd32; break;
+ case MVT::v8i16:
+ Opc = ARM::VST4LNq16a;
+ Opc2 = ARM::VST4LNq16b;
+ RegVT = MVT::v4i16;
+ break;
+ case MVT::v4f32:
+ Opc = ARM::VST4LNq32a;
+ Opc2 = ARM::VST4LNq32b;
+ RegVT = MVT::v2f32;
+ break;
+ case MVT::v4i32:
+ Opc = ARM::VST4LNq32a;
+ Opc2 = ARM::VST4LNq32b;
+ RegVT = MVT::v2i32;
+ break;
}
SDValue Chain = N->getOperand(0);
- const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc,
- N->getOperand(3), N->getOperand(4),
- N->getOperand(5), N->getOperand(6),
- N->getOperand(7), Chain };
- return CurDAG->getMachineNode(Opc, dl, MVT::Other, Ops, 9);
+ unsigned Lane = cast<ConstantSDNode>(N->getOperand(7))->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));
+ SDValue D2 = CurDAG->getTargetExtractSubreg(SubregIdx, dl, RegVT,
+ N->getOperand(5));
+ SDValue D3 = CurDAG->getTargetExtractSubreg(SubregIdx, dl, RegVT,
+ N->getOperand(6));
+ const SDValue Ops[] = { MemAddr, MemUpdate, MemOpc, D0, D1, D2, D3,
+ getI32Imm(Lane % NumElts), Chain };
+ return CurDAG->getMachineNode((Lane < NumElts) ? Opc : Opc2,
+ dl, MVT::Other, Ops, 9);
}
}
}
Modified: llvm/trunk/lib/Target/ARM/ARMInstrNEON.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrNEON.td?rev=83600&r1=83599&r2=83600&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrNEON.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrNEON.td Thu Oct 8 19:01:36 2009
@@ -489,7 +489,7 @@
def VST3LNq32b: VST3LN<0b1010, "vst3.32">;
// VST4LN : Vector Store (single 4-element structure from one lane)
-class VST4LND<bits<4> op11_8, string OpcodeStr>
+class VST4LN<bits<4> op11_8, string OpcodeStr>
: NLdSt<1,0b00,op11_8,0b0000, (outs),
(ins addrmode6:$addr, DPR:$src1, DPR:$src2, DPR:$src3, DPR:$src4,
nohash_imm:$lane), IIC_VST,
@@ -497,9 +497,18 @@
"\t\\{$src1[$lane],$src2[$lane],$src3[$lane],$src4[$lane]\\}, $addr"),
"", []>;
-def VST4LNd8 : VST4LND<0b0011, "vst4.8">;
-def VST4LNd16 : VST4LND<0b0111, "vst4.16">;
-def VST4LNd32 : VST4LND<0b1011, "vst4.32">;
+def VST4LNd8 : VST4LN<0b0011, "vst4.8">;
+def VST4LNd16 : VST4LN<0b0111, "vst4.16">;
+def VST4LNd32 : VST4LN<0b1011, "vst4.32">;
+
+// vst4 to double-spaced even registers.
+def VST4LNq16a: VST4LN<0b0111, "vst4.16">;
+def VST4LNq32a: VST4LN<0b1011, "vst4.32">;
+
+// vst4 to double-spaced odd registers.
+def VST4LNq16b: VST4LN<0b0111, "vst4.16">;
+def VST4LNq32b: VST4LN<0b1011, "vst4.32">;
+
} // mayStore = 1, hasExtraSrcRegAllocReq = 1
Modified: llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp?rev=83600&r1=83599&r2=83600&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp (original)
+++ llvm/trunk/lib/Target/ARM/NEONPreAllocPass.cpp Thu Oct 8 19:01:36 2009
@@ -278,6 +278,22 @@
Stride = 2;
return true;
+ case ARM::VST4LNq16a:
+ case ARM::VST4LNq32a:
+ FirstOpnd = 3;
+ NumRegs = 4;
+ Offset = 0;
+ Stride = 2;
+ return true;
+
+ case ARM::VST4LNq16b:
+ case ARM::VST4LNq32b:
+ FirstOpnd = 3;
+ NumRegs = 4;
+ Offset = 1;
+ Stride = 2;
+ return true;
+
case ARM::VTBL2:
FirstOpnd = 1;
NumRegs = 2;
Modified: llvm/trunk/test/CodeGen/ARM/vstlane.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/vstlane.ll?rev=83600&r1=83599&r2=83600&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/vstlane.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/vstlane.ll Thu Oct 8 19:01:36 2009
@@ -163,7 +163,35 @@
ret void
}
+define void @vst4laneQi16(i16* %A, <8 x i16>* %B) nounwind {
+;CHECK: vst4laneQi16:
+;CHECK: vst4.16
+ %tmp1 = load <8 x i16>* %B
+ call void @llvm.arm.neon.vst4lane.v8i16(i16* %A, <8 x i16> %tmp1, <8 x i16> %tmp1, <8 x i16> %tmp1, <8 x i16> %tmp1, i32 7)
+ ret void
+}
+
+define void @vst4laneQi32(i32* %A, <4 x i32>* %B) nounwind {
+;CHECK: vst4laneQi32:
+;CHECK: vst4.32
+ %tmp1 = load <4 x i32>* %B
+ call void @llvm.arm.neon.vst4lane.v4i32(i32* %A, <4 x i32> %tmp1, <4 x i32> %tmp1, <4 x i32> %tmp1, <4 x i32> %tmp1, i32 2)
+ ret void
+}
+
+define void @vst4laneQf(float* %A, <4 x float>* %B) nounwind {
+;CHECK: vst4laneQf:
+;CHECK: vst4.32
+ %tmp1 = load <4 x float>* %B
+ call void @llvm.arm.neon.vst4lane.v4f32(float* %A, <4 x float> %tmp1, <4 x float> %tmp1, <4 x float> %tmp1, <4 x float> %tmp1, i32 1)
+ ret void
+}
+
declare void @llvm.arm.neon.vst4lane.v8i8(i8*, <8 x i8>, <8 x i8>, <8 x i8>, <8 x i8>, i32) nounwind
declare void @llvm.arm.neon.vst4lane.v4i16(i8*, <4 x i16>, <4 x i16>, <4 x i16>, <4 x i16>, i32) nounwind
declare void @llvm.arm.neon.vst4lane.v2i32(i8*, <2 x i32>, <2 x i32>, <2 x i32>, <2 x i32>, i32) nounwind
declare void @llvm.arm.neon.vst4lane.v2f32(i8*, <2 x float>, <2 x float>, <2 x float>, <2 x float>, i32) nounwind
+
+declare void @llvm.arm.neon.vst4lane.v8i16(i8*, <8 x i16>, <8 x i16>, <8 x i16>, <8 x i16>, i32) nounwind
+declare void @llvm.arm.neon.vst4lane.v4i32(i8*, <4 x i32>, <4 x i32>, <4 x i32>, <4 x i32>, i32) nounwind
+declare void @llvm.arm.neon.vst4lane.v4f32(i8*, <4 x float>, <4 x float>, <4 x float>, <4 x float>, i32) nounwind
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