[llvm-commits] [llvm] r147069 - in /llvm/trunk: lib/Target/ARM/ARMBaseInstrInfo.cpp lib/Target/ARM/ARMExpandPseudoInsts.cpp lib/Target/ARM/ARMISelDAGToDAG.cpp lib/Target/ARM/ARMInstrNEON.td test/MC/ARM/neon-vld-encoding.s

Jim Grosbach grosbach at apple.com
Wed Dec 21 11:40:55 PST 2011


Author: grosbach
Date: Wed Dec 21 13:40:55 2011
New Revision: 147069

URL: http://llvm.org/viewvc/llvm-project?rev=147069&view=rev
Log:
ARM NEON assmebly parsing for VLD2 to all lanes instructions.

Modified:
    llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp
    llvm/trunk/lib/Target/ARM/ARMExpandPseudoInsts.cpp
    llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp
    llvm/trunk/lib/Target/ARM/ARMInstrNEON.td
    llvm/trunk/test/MC/ARM/neon-vld-encoding.s

Modified: llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp?rev=147069&r1=147068&r2=147069&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp Wed Dec 21 13:40:55 2011
@@ -2584,9 +2584,12 @@
     case ARM::VLD2DUPd8:
     case ARM::VLD2DUPd16:
     case ARM::VLD2DUPd32:
-    case ARM::VLD2DUPd8_UPD:
-    case ARM::VLD2DUPd16_UPD:
-    case ARM::VLD2DUPd32_UPD:
+    case ARM::VLD2DUPd8wb_fixed:
+    case ARM::VLD2DUPd16wb_fixed:
+    case ARM::VLD2DUPd32wb_fixed:
+    case ARM::VLD2DUPd8wb_register:
+    case ARM::VLD2DUPd16wb_register:
+    case ARM::VLD2DUPd32wb_register:
     case ARM::VLD4DUPd8:
     case ARM::VLD4DUPd16:
     case ARM::VLD4DUPd32:
@@ -2768,9 +2771,12 @@
     case ARM::VLD2DUPd8Pseudo:
     case ARM::VLD2DUPd16Pseudo:
     case ARM::VLD2DUPd32Pseudo:
-    case ARM::VLD2DUPd8Pseudo_UPD:
-    case ARM::VLD2DUPd16Pseudo_UPD:
-    case ARM::VLD2DUPd32Pseudo_UPD:
+    case ARM::VLD2DUPd8PseudoWB_fixed:
+    case ARM::VLD2DUPd16PseudoWB_fixed:
+    case ARM::VLD2DUPd32PseudoWB_fixed:
+    case ARM::VLD2DUPd8PseudoWB_register:
+    case ARM::VLD2DUPd16PseudoWB_register:
+    case ARM::VLD2DUPd32PseudoWB_register:
     case ARM::VLD4DUPd8Pseudo:
     case ARM::VLD4DUPd16Pseudo:
     case ARM::VLD4DUPd32Pseudo:

Modified: llvm/trunk/lib/Target/ARM/ARMExpandPseudoInsts.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMExpandPseudoInsts.cpp?rev=147069&r1=147068&r2=147069&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMExpandPseudoInsts.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMExpandPseudoInsts.cpp Wed Dec 21 13:40:55 2011
@@ -162,11 +162,14 @@
 { ARM::VLD1q8PseudoWB_register, ARM::VLD1q8wb_register,true,true, true,SingleSpc,2,8,false},
 
 { ARM::VLD2DUPd16Pseudo,     ARM::VLD2DUPd16,     true, false, false, SingleSpc, 2, 4,false},
-{ ARM::VLD2DUPd16Pseudo_UPD, ARM::VLD2DUPd16_UPD, true, true, true,  SingleSpc, 2, 4,true},
+{ ARM::VLD2DUPd16PseudoWB_fixed, ARM::VLD2DUPd16wb_fixed, true, true, false,  SingleSpc, 2, 4,false},
+{ ARM::VLD2DUPd16PseudoWB_register, ARM::VLD2DUPd16wb_register, true, true, true,  SingleSpc, 2, 4,false},
 { ARM::VLD2DUPd32Pseudo,     ARM::VLD2DUPd32,     true, false, false, SingleSpc, 2, 2,false},
-{ ARM::VLD2DUPd32Pseudo_UPD, ARM::VLD2DUPd32_UPD, true, true, true,  SingleSpc, 2, 2,true},
+{ ARM::VLD2DUPd32PseudoWB_fixed, ARM::VLD2DUPd32wb_fixed, true, true, false,  SingleSpc, 2, 2,false},
+{ ARM::VLD2DUPd32PseudoWB_register, ARM::VLD2DUPd32wb_register, true, true, true,  SingleSpc, 2, 2,false},
 { ARM::VLD2DUPd8Pseudo,      ARM::VLD2DUPd8,      true, false, false, SingleSpc, 2, 8,false},
-{ ARM::VLD2DUPd8Pseudo_UPD,  ARM::VLD2DUPd8_UPD, true, true, true,  SingleSpc, 2, 8,true},
+{ ARM::VLD2DUPd8PseudoWB_fixed,  ARM::VLD2DUPd8wb_fixed, true, true, false,  SingleSpc, 2, 8,false},
+{ ARM::VLD2DUPd8PseudoWB_register,  ARM::VLD2DUPd8wb_register, true, true, true,  SingleSpc, 2, 8,false},
 
 { ARM::VLD2LNd16Pseudo,     ARM::VLD2LNd16,     true, false, false, SingleSpc,  2, 4 ,true},
 { ARM::VLD2LNd16Pseudo_UPD, ARM::VLD2LNd16_UPD, true, true, true,  SingleSpc,  2, 4 ,true},
@@ -1163,9 +1166,12 @@
     case ARM::VLD2DUPd8Pseudo:
     case ARM::VLD2DUPd16Pseudo:
     case ARM::VLD2DUPd32Pseudo:
-    case ARM::VLD2DUPd8Pseudo_UPD:
-    case ARM::VLD2DUPd16Pseudo_UPD:
-    case ARM::VLD2DUPd32Pseudo_UPD:
+    case ARM::VLD2DUPd8PseudoWB_fixed:
+    case ARM::VLD2DUPd16PseudoWB_fixed:
+    case ARM::VLD2DUPd32PseudoWB_fixed:
+    case ARM::VLD2DUPd8PseudoWB_register:
+    case ARM::VLD2DUPd16PseudoWB_register:
+    case ARM::VLD2DUPd32PseudoWB_register:
     case ARM::VLD3DUPd8Pseudo:
     case ARM::VLD3DUPd16Pseudo:
     case ARM::VLD3DUPd32Pseudo:

Modified: llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp?rev=147069&r1=147068&r2=147069&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMISelDAGToDAG.cpp Wed Dec 21 13:40:55 2011
@@ -1595,6 +1595,10 @@
   case ARM::VST2q8PseudoWB_fixed: return ARM::VST2q8PseudoWB_register;
   case ARM::VST2q16PseudoWB_fixed: return ARM::VST2q16PseudoWB_register;
   case ARM::VST2q32PseudoWB_fixed: return ARM::VST2q32PseudoWB_register;
+
+  case ARM::VLD2DUPd8PseudoWB_fixed: return ARM::VLD2DUPd8PseudoWB_register;
+  case ARM::VLD2DUPd16PseudoWB_fixed: return ARM::VLD2DUPd16PseudoWB_register;
+  case ARM::VLD2DUPd32PseudoWB_fixed: return ARM::VLD2DUPd32PseudoWB_register;
   }
   return Opc; // If not one we handle, return it unchanged.
 }
@@ -2043,8 +2047,14 @@
   Ops.push_back(MemAddr);
   Ops.push_back(Align);
   if (isUpdating) {
+    // fixed-stride update instructions don't have an explicit writeback
+    // operand. It's implicit in the opcode itself.
     SDValue Inc = N->getOperand(2);
-    Ops.push_back(isa<ConstantSDNode>(Inc.getNode()) ? Reg0 : Inc);
+    if (!isa<ConstantSDNode>(Inc.getNode()))
+      Ops.push_back(Inc);
+    // FIXME: VLD3 and VLD4 haven't been updated to that form yet.
+    else if (NumVecs > 2)
+      Ops.push_back(Reg0);
   }
   Ops.push_back(Pred);
   Ops.push_back(Reg0);
@@ -2798,8 +2808,9 @@
   }
 
   case ARMISD::VLD2DUP_UPD: {
-    unsigned Opcodes[] = { ARM::VLD2DUPd8Pseudo_UPD, ARM::VLD2DUPd16Pseudo_UPD,
-                           ARM::VLD2DUPd32Pseudo_UPD };
+    unsigned Opcodes[] = { ARM::VLD2DUPd8PseudoWB_fixed,
+                           ARM::VLD2DUPd16PseudoWB_fixed,
+                           ARM::VLD2DUPd32PseudoWB_fixed };
     return SelectVLDDup(N, true, 2, Opcodes);
   }
 

Modified: llvm/trunk/lib/Target/ARM/ARMInstrNEON.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrNEON.td?rev=147069&r1=147068&r2=147069&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrNEON.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrNEON.td Wed Dec 21 13:40:55 2011
@@ -1254,25 +1254,42 @@
 def VLD2DUPd32x2 : VLD2DUP<{1,0,1,?}, "32", VecListTwoQAllLanes>;
 
 // ...with address register writeback:
-class VLD2DUPWB<bits<4> op7_4, string Dt>
-  : NLdSt<1, 0b10, 0b1101, op7_4, (outs DPR:$Vd, DPR:$dst2, GPR:$wb),
-          (ins addrmode6dup:$Rn, am6offset:$Rm), IIC_VLD2dupu,
-          "vld2", Dt, "\\{$Vd[], $dst2[]\\}, $Rn$Rm", "$Rn.addr = $wb", []> {
-  let Inst{4} = Rn{4};
-  let DecoderMethod = "DecodeVLD2DupInstruction";
+multiclass VLD2DUPWB<bits<4> op7_4, string Dt, RegisterOperand VdTy> {
+  def _fixed : NLdSt<1, 0b10, 0b1101, op7_4,
+                     (outs VdTy:$Vd, GPR:$wb),
+                     (ins addrmode6dup:$Rn), IIC_VLD2dupu,
+                     "vld2", Dt, "$Vd, $Rn!",
+                     "$Rn.addr = $wb", []> {
+    let Rm = 0b1101; // NLdSt will assign to the right encoding bits.
+    let Inst{4} = Rn{4};
+    let DecoderMethod = "DecodeVLD2DupInstruction";
+    let AsmMatchConverter = "cvtVLDwbFixed";
+  }
+  def _register : NLdSt<1, 0b10, 0b1101, op7_4,
+                        (outs VdTy:$Vd, GPR:$wb),
+                        (ins addrmode6dup:$Rn, rGPR:$Rm), IIC_VLD2dupu,
+                        "vld2", Dt, "$Vd, $Rn, $Rm",
+                        "$Rn.addr = $wb", []> {
+    let Inst{4} = Rn{4};
+    let DecoderMethod = "DecodeVLD2DupInstruction";
+    let AsmMatchConverter = "cvtVLDwbRegister";
+  }
 }
 
-def VLD2DUPd8_UPD  : VLD2DUPWB<{0,0,0,0}, "8">;
-def VLD2DUPd16_UPD : VLD2DUPWB<{0,1,0,?}, "16">;
-def VLD2DUPd32_UPD : VLD2DUPWB<{1,0,0,?}, "32">;
+defm VLD2DUPd8wb    : VLD2DUPWB<{0,0,0,0}, "8",  VecListTwoDAllLanes>;
+defm VLD2DUPd16wb   : VLD2DUPWB<{0,1,0,?}, "16", VecListTwoDAllLanes>;
+defm VLD2DUPd32wb   : VLD2DUPWB<{1,0,0,?}, "32", VecListTwoDAllLanes>;
 
-def VLD2DUPd8x2_UPD  : VLD2DUPWB<{0,0,1,0}, "8">;
-def VLD2DUPd16x2_UPD : VLD2DUPWB<{0,1,1,?}, "16">;
-def VLD2DUPd32x2_UPD : VLD2DUPWB<{1,0,1,?}, "32">;
+defm VLD2DUPd8x2wb  : VLD2DUPWB<{0,0,1,0}, "8",  VecListTwoQAllLanes>;
+defm VLD2DUPd16x2wb : VLD2DUPWB<{0,1,1,?}, "16", VecListTwoQAllLanes>;
+defm VLD2DUPd32x2wb : VLD2DUPWB<{1,0,1,?}, "32", VecListTwoQAllLanes>;
 
-def VLD2DUPd8Pseudo_UPD  : VLDQWBPseudo<IIC_VLD2dupu>;
-def VLD2DUPd16Pseudo_UPD : VLDQWBPseudo<IIC_VLD2dupu>;
-def VLD2DUPd32Pseudo_UPD : VLDQWBPseudo<IIC_VLD2dupu>;
+def VLD2DUPd8PseudoWB_fixed     : VLDQWBfixedPseudo   <IIC_VLD2dupu>;
+def VLD2DUPd8PseudoWB_register  : VLDQWBregisterPseudo<IIC_VLD2dupu>;
+def VLD2DUPd16PseudoWB_fixed    : VLDQWBfixedPseudo   <IIC_VLD2dupu>;
+def VLD2DUPd16PseudoWB_register : VLDQWBregisterPseudo<IIC_VLD2dupu>;
+def VLD2DUPd32PseudoWB_fixed    : VLDQWBfixedPseudo   <IIC_VLD2dupu>;
+def VLD2DUPd32PseudoWB_register : VLDQWBregisterPseudo<IIC_VLD2dupu>;
 
 //   VLD3DUP  : Vector Load (single 3-element structure to all lanes)
 class VLD3DUP<bits<4> op7_4, string Dt>

Modified: llvm/trunk/test/MC/ARM/neon-vld-encoding.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ARM/neon-vld-encoding.s?rev=147069&r1=147068&r2=147069&view=diff
==============================================================================
--- llvm/trunk/test/MC/ARM/neon-vld-encoding.s (original)
+++ llvm/trunk/test/MC/ARM/neon-vld-encoding.s Wed Dec 21 13:40:55 2011
@@ -238,6 +238,10 @@
         vld2.8 {d2[4], d3[4]}, [r2]
         vld2.32 {d22[], d23[]}, [r1]
         vld2.32 {d22[], d24[]}, [r1]
+        vld2.32 {d10[ ],d11[ ]}, [r3]!
+        vld2.32 {d14[ ],d16[ ]}, [r4]!
+        vld2.32 {d22[ ],d23[ ]}, [r5], r4
+        vld2.32 {d22[ ],d24[ ]}, [r6], r4
 
 @ CHECK: vld2.8	{d16[1], d17[1]}, [r0, :16] @ encoding: [0x3f,0x01,0xe0,0xf4]
 @ CHECK: vld2.16 {d16[1], d17[1]}, [r0, :32] @ encoding: [0x5f,0x05,0xe0,0xf4]
@@ -250,6 +254,10 @@
 @ CHECK: vld2.8	{d2[4], d3[4]}, [r2]    @ encoding: [0x8f,0x21,0xa2,0xf4]
 @ CHECK: vld2.32 {d22[], d23[]}, [r1]    @ encoding: [0x8f,0x6d,0xe1,0xf4]
 @ CHECK: vld2.32 {d22[], d24[]}, [r1]    @ encoding: [0xaf,0x6d,0xe1,0xf4]
+@ CHECK: vld2.32 {d10[], d11[]}, [r3]!   @ encoding: [0x8d,0xad,0xa3,0xf4]
+@ CHECK: vld2.32 {d14[], d16[]}, [r4]!   @ encoding: [0xad,0xed,0xa4,0xf4]
+@ CHECK: vld2.32 {d22[], d23[]}, [r5], r4 @ encoding: [0x84,0x6d,0xe5,0xf4]
+@ CHECK: vld2.32 {d22[], d24[]}, [r6], r4 @ encoding: [0xa4,0x6d,0xe6,0xf4]
 
 
 @	vld3.8	{d16[1], d17[1], d18[1]}, [r0]





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