AMDGPU: Move R600 specific code out of AMDGPUISelLowering.cpp

Reviewers: arsenm

Subscribers: jvesely, arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D19736

llvm-svn: 268267

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
index 2ae7103..5271886 100644 (file)
--- a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
@@ -815,45 +815,6 @@ SDValue AMDGPUTargetLowering::LowerGlobalAddress(AMDGPUMachineFunction* MFI,
     return DAG.getConstant(Offset, SDLoc(Op),
                            getPointerTy(DL, AMDGPUAS::LOCAL_ADDRESS));
   }
-  case AMDGPUAS::CONSTANT_ADDRESS: {
-    MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo();
-    Type *EltType = GV->getValueType();
-    unsigned Size = DL.getTypeAllocSize(EltType);
-    unsigned Alignment = DL.getPrefTypeAlignment(EltType);
-
-    MVT PrivPtrVT = getPointerTy(DL, AMDGPUAS::PRIVATE_ADDRESS);
-    MVT ConstPtrVT = getPointerTy(DL, AMDGPUAS::CONSTANT_ADDRESS);
-
-    int FI = FrameInfo->CreateStackObject(Size, Alignment, false);
-    SDValue InitPtr = DAG.getFrameIndex(FI, PrivPtrVT);
-
-    const GlobalVariable *Var = cast<GlobalVariable>(GV);
-    if (!Var->hasInitializer()) {
-      // This has no use, but bugpoint will hit it.
-      return DAG.getZExtOrTrunc(InitPtr, SDLoc(Op), ConstPtrVT);
-    }
-
-    const Constant *Init = Var->getInitializer();
-    SmallVector<SDNode*, 8> WorkList;
-
-    for (SDNode::use_iterator I = DAG.getEntryNode()->use_begin(),
-                              E = DAG.getEntryNode()->use_end(); I != E; ++I) {
-      if (I->getOpcode() != AMDGPUISD::REGISTER_LOAD && I->getOpcode() != ISD::LOAD)
-        continue;
-      WorkList.push_back(*I);
-    }
-    SDValue Chain = LowerConstantInitializer(Init, GV, InitPtr, DAG.getEntryNode(), DAG);
-    for (SmallVector<SDNode*, 8>::iterator I = WorkList.begin(),
-                                           E = WorkList.end(); I != E; ++I) {
-      SmallVector<SDValue, 8> Ops;
-      Ops.push_back(Chain);
-      for (unsigned i = 1; i < (*I)->getNumOperands(); ++i) {
-        Ops.push_back((*I)->getOperand(i));
-      }
-      DAG.UpdateNodeOperands(*I, Ops);
-    }
-    return DAG.getZExtOrTrunc(InitPtr, SDLoc(Op), ConstPtrVT);
-  }
   }
 
   const Function &Fn = *DAG.getMachineFunction().getFunction();

diff --git a/llvm/lib/Target/AMDGPU/R600ISelLowering.cpp b/llvm/lib/Target/AMDGPU/R600ISelLowering.cpp
index d1e932b..5620b24 100644 (file)
--- a/llvm/lib/Target/AMDGPU/R600ISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/R600ISelLowering.cpp
@@ -904,6 +904,55 @@ SDValue R600TargetLowering::LowerINSERT_VECTOR_ELT(SDValue Op,
   return vectorToVerticalVector(DAG, Insert);
 }
 
+SDValue R600TargetLowering::LowerGlobalAddress(AMDGPUMachineFunction *MFI,
+                                               SDValue Op,
+                                               SelectionDAG &DAG) const {
+
+  GlobalAddressSDNode *GSD = cast<GlobalAddressSDNode>(Op);
+  if (GSD->getAddressSpace() != AMDGPUAS::CONSTANT_ADDRESS)
+    return AMDGPUTargetLowering::LowerGlobalAddress(MFI, Op, DAG);
+
+  const DataLayout &DL = DAG.getDataLayout();
+  const GlobalValue *GV = GSD->getGlobal();
+  MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo();
+  Type *EltType = GV->getValueType();
+  unsigned Size = DL.getTypeAllocSize(EltType);
+  unsigned Alignment = DL.getPrefTypeAlignment(EltType);
+
+  MVT PrivPtrVT = getPointerTy(DL, AMDGPUAS::PRIVATE_ADDRESS);
+  MVT ConstPtrVT = getPointerTy(DL, AMDGPUAS::CONSTANT_ADDRESS);
+
+  int FI = FrameInfo->CreateStackObject(Size, Alignment, false);
+  SDValue InitPtr = DAG.getFrameIndex(FI, PrivPtrVT);
+
+  const GlobalVariable *Var = cast<GlobalVariable>(GV);
+  if (!Var->hasInitializer()) {
+    // This has no use, but bugpoint will hit it.
+    return DAG.getZExtOrTrunc(InitPtr, SDLoc(Op), ConstPtrVT);
+  }
+
+  const Constant *Init = Var->getInitializer();
+  SmallVector<SDNode*, 8> WorkList;
+
+  for (SDNode::use_iterator I = DAG.getEntryNode()->use_begin(),
+                            E = DAG.getEntryNode()->use_end(); I != E; ++I) {
+    if (I->getOpcode() != AMDGPUISD::REGISTER_LOAD && I->getOpcode() != ISD::LOAD)
+      continue;
+    WorkList.push_back(*I);
+  }
+  SDValue Chain = LowerConstantInitializer(Init, GV, InitPtr, DAG.getEntryNode(), DAG);
+  for (SmallVector<SDNode*, 8>::iterator I = WorkList.begin(),
+                                         E = WorkList.end(); I != E; ++I) {
+    SmallVector<SDValue, 8> Ops;
+    Ops.push_back(Chain);
+    for (unsigned i = 1; i < (*I)->getNumOperands(); ++i) {
+      Ops.push_back((*I)->getOperand(i));
+    }
+    DAG.UpdateNodeOperands(*I, Ops);
+  }
+  return DAG.getZExtOrTrunc(InitPtr, SDLoc(Op), ConstPtrVT);
+}
+
 SDValue R600TargetLowering::LowerTrig(SDValue Op, SelectionDAG &DAG) const {
   // On hw >= R700, COS/SIN input must be between -1. and 1.
   // Thus we lower them to TRIG ( FRACT ( x / 2Pi + 0.5) - 0.5)

diff --git a/llvm/lib/Target/AMDGPU/R600ISelLowering.h b/llvm/lib/Target/AMDGPU/R600ISelLowering.h
index b68869f..5dad78c 100644 (file)
--- a/llvm/lib/Target/AMDGPU/R600ISelLowering.h
+++ b/llvm/lib/Target/AMDGPU/R600ISelLowering.h
@@ -63,6 +63,8 @@ private:
   SDValue lowerFrameIndex(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
+  SDValue LowerGlobalAddress(AMDGPUMachineFunction *MFI, SDValue Op,
+                             SelectionDAG &DAG) const;
   SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
 
   SDValue lowerPrivateTruncStore(StoreSDNode *Store, SelectionDAG &DAG) const;