AMDGPU: Remove SI_fs_constant and SI_fs_interp intrinsics

Update test uses with expansion in terms of new intrinsics.

llvm-svn: 295269

3 files changed, 3 insertions, 50 deletions

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
index f3c94182730..6d2e2f0bbbb 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
@@ -255,16 +255,8 @@ int AMDGPUTTIImpl::getVectorInstrCost(unsigned Opcode, Type *ValTy,
   }
 }
 
-static bool isIntrinsicSourceOfDivergence(const TargetIntrinsicInfo *TII,
-                                          const IntrinsicInst *I) {
+static bool isIntrinsicSourceOfDivergence(const IntrinsicInst *I) {
   switch (I->getIntrinsicID()) {
-  default:
-    return false;
-  case Intrinsic::not_intrinsic:
-    // This means we have an intrinsic that isn't defined in
-    // IntrinsicsAMDGPU.td
-    break;
-
   case Intrinsic::amdgcn_workitem_id_x:
   case Intrinsic::amdgcn_workitem_id_y:
   case Intrinsic::amdgcn_workitem_id_z:
@@ -305,15 +297,8 @@ static bool isIntrinsicSourceOfDivergence(const TargetIntrinsicInfo *TII,
   case Intrinsic::amdgcn_ps_live:
   case Intrinsic::amdgcn_ds_swizzle:
     return true;
-  }
-
-  StringRef Name = I->getCalledFunction()->getName();
-  switch (TII->lookupName((const char *)Name.bytes_begin(), Name.size())) {
   default:
     return false;
-  case AMDGPUIntrinsic::SI_fs_interp:
-  case AMDGPUIntrinsic::SI_fs_constant:
-    return true;
   }
 }
 
@@ -357,10 +342,8 @@ bool AMDGPUTTIImpl::isSourceOfDivergence(const Value *V) const {
   if (isa<AtomicRMWInst>(V) || isa<AtomicCmpXchgInst>(V))
     return true;
 
-  if (const IntrinsicInst *Intrinsic = dyn_cast<IntrinsicInst>(V)) {
-    const TargetMachine &TM = getTLI()->getTargetMachine();
-    return isIntrinsicSourceOfDivergence(TM.getIntrinsicInfo(), Intrinsic);
-  }
+  if (const IntrinsicInst *Intrinsic = dyn_cast<IntrinsicInst>(V))
+    return isIntrinsicSourceOfDivergence(Intrinsic);
 
   // Assume all function calls are a source of divergence.
   if (isa<CallInst>(V) || isa<InvokeInst>(V))
diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index 491880794f5..e14cf35a49a 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -2684,35 +2684,10 @@ SDValue SITargetLowering::LowerINTRINSIC_WO_CHAIN(SDValue Op,
                        Op.getOperand(1),
                        Op.getOperand(2),
                        Op.getOperand(3));
-
-  case AMDGPUIntrinsic::SI_fs_constant: {
-    SDValue M0 = copyToM0(DAG, DAG.getEntryNode(), DL, Op.getOperand(3));
-    SDValue Glue = M0.getValue(1);
-    return DAG.getNode(AMDGPUISD::INTERP_MOV, DL, MVT::f32,
-                       DAG.getConstant(2, DL, MVT::i32), // P0
-                       Op.getOperand(1), Op.getOperand(2), Glue);
-  }
   case AMDGPUIntrinsic::SI_packf16:
     if (Op.getOperand(1).isUndef() && Op.getOperand(2).isUndef())
       return DAG.getUNDEF(MVT::i32);
     return Op;
-  case AMDGPUIntrinsic::SI_fs_interp: {
-    SDValue IJ = Op.getOperand(4);
-    SDValue I = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, MVT::i32, IJ,
-                            DAG.getConstant(0, DL, MVT::i32));
-    SDValue J = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, MVT::i32, IJ,
-                            DAG.getConstant(1, DL, MVT::i32));
-    I = DAG.getNode(ISD::BITCAST, DL, MVT::f32, I);
-    J = DAG.getNode(ISD::BITCAST, DL, MVT::f32, J);
-    SDValue M0 = copyToM0(DAG, DAG.getEntryNode(), DL, Op.getOperand(3));
-    SDValue Glue = M0.getValue(1);
-    SDValue P1 = DAG.getNode(AMDGPUISD::INTERP_P1, DL,
-                             DAG.getVTList(MVT::f32, MVT::Glue),
-                             I, Op.getOperand(1), Op.getOperand(2), Glue);
-    Glue = SDValue(P1.getNode(), 1);
-    return DAG.getNode(AMDGPUISD::INTERP_P2, DL, MVT::f32, P1, J,
-                             Op.getOperand(1), Op.getOperand(2), Glue);
-  }
   case Intrinsic::amdgcn_interp_mov: {
     SDValue M0 = copyToM0(DAG, DAG.getEntryNode(), DL, Op.getOperand(4));
     SDValue Glue = M0.getValue(1);
diff --git a/llvm/lib/Target/AMDGPU/SIIntrinsics.td b/llvm/lib/Target/AMDGPU/SIIntrinsics.td
index 5da37546871..f98feeca430 100644
--- a/llvm/lib/Target/AMDGPU/SIIntrinsics.td
+++ b/llvm/lib/Target/AMDGPU/SIIntrinsics.td
@@ -183,11 +183,6 @@ let TargetPrefix = "SI", isTarget = 1 in {
   def int_SI_image_load : Image;
   def int_SI_image_load_mip : Image;
   def int_SI_getresinfo : Image;
-
-  /* Interpolation Intrinsics */
-
-  def int_SI_fs_constant : Intrinsic <[llvm_float_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
-  def int_SI_fs_interp : Intrinsic <[llvm_float_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty, llvm_v2i32_ty], [IntrNoMem]>;
 } // End TargetPrefix = "SI", isTarget = 1
 
 let TargetPrefix = "amdgcn", isTarget = 1 in {