[llvm-branch-commits] [llvm-branch] r164511 - in /llvm/branches/R600/lib/Target/Mips: MipsISelLowering.cpp MipsISelLowering.h

[Tom Stellard]

Author: tstellar
Date: Mon Sep 24 10:51:59 2012
New Revision: 164511

URL: http://llvm.org/viewvc/llvm-project?rev=164511&view=rev
Log:
Add MIPS DSP register classes. Set actions of DSP vector operations and override
TargetLowering's callback functions.

Modified:
    llvm/branches/R600/lib/Target/Mips/MipsISelLowering.cpp
    llvm/branches/R600/lib/Target/Mips/MipsISelLowering.h

Modified: llvm/branches/R600/lib/Target/Mips/MipsISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/R600/lib/Target/Mips/MipsISelLowering.cpp?rev=164511&r1=164510&r2=164511&view=diff
==============================================================================
--- llvm/branches/R600/lib/Target/Mips/MipsISelLowering.cpp (original)
+++ llvm/branches/R600/lib/Target/Mips/MipsISelLowering.cpp Mon Sep 24 10:51:59 2012
@@ -129,6 +129,22 @@
     addRegisterClass(MVT::i32, &Mips::CPU16RegsRegClass);
   }
 
+  if (Subtarget->hasDSP()) {
+    MVT::SimpleValueType VecTys[2] = {MVT::v2i16, MVT::v4i8};
+
+    for (unsigned i = 0; i < array_lengthof(VecTys); ++i) {
+      addRegisterClass(VecTys[i], &Mips::DSPRegsRegClass);
+
+      // Expand all builtin opcodes.
+      for (unsigned Opc = 0; Opc < ISD::BUILTIN_OP_END; ++Opc)
+        setOperationAction(Opc, VecTys[i], Expand);
+
+      setOperationAction(ISD::LOAD, VecTys[i], Legal);
+      setOperationAction(ISD::STORE, VecTys[i], Legal);
+      setOperationAction(ISD::BITCAST, VecTys[i], Legal);
+    }
+  }
+
   if (!TM.Options.UseSoftFloat) {
     addRegisterClass(MVT::f32, &Mips::FGR32RegClass);
 
@@ -269,6 +285,9 @@
   setOperationAction(ISD::VACOPY,            MVT::Other, Expand);
   setOperationAction(ISD::VAEND,             MVT::Other, Expand);
 
+  setOperationAction(ISD::INTRINSIC_WO_CHAIN, MVT::i64, Custom);
+  setOperationAction(ISD::INTRINSIC_W_CHAIN, MVT::i64, Custom);
+
   // Use the default for now
   setOperationAction(ISD::STACKSAVE,         MVT::Other, Expand);
   setOperationAction(ISD::STACKRESTORE,      MVT::Other, Expand);
@@ -803,6 +822,26 @@
   return SDValue();
 }
 
+void
+MipsTargetLowering::LowerOperationWrapper(SDNode *N,
+                                          SmallVectorImpl<SDValue> &Results,
+                                          SelectionDAG &DAG) const {
+  SDValue Res = LowerOperation(SDValue(N, 0), DAG);
+
+  for (unsigned I = 0, E = Res->getNumValues(); I != E; ++I)
+    Results.push_back(Res.getValue(I));
+}
+
+void
+MipsTargetLowering::ReplaceNodeResults(SDNode *N,
+                                       SmallVectorImpl<SDValue> &Results,
+                                       SelectionDAG &DAG) const {
+  SDValue Res = LowerOperation(SDValue(N, 0), DAG);
+
+  for (unsigned I = 0, E = Res->getNumValues(); I != E; ++I)
+    Results.push_back(Res.getValue(I));
+}
+
 SDValue MipsTargetLowering::
 LowerOperation(SDValue Op, SelectionDAG &DAG) const
 {

Modified: llvm/branches/R600/lib/Target/Mips/MipsISelLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/R600/lib/Target/Mips/MipsISelLowering.h?rev=164511&r1=164510&r2=164511&view=diff
==============================================================================
--- llvm/branches/R600/lib/Target/Mips/MipsISelLowering.h (original)
+++ llvm/branches/R600/lib/Target/Mips/MipsISelLowering.h Mon Sep 24 10:51:59 2012
@@ -146,9 +146,19 @@
 
     virtual bool allowsUnalignedMemoryAccesses (EVT VT) const;
 
+    virtual void LowerOperationWrapper(SDNode *N,
+                                       SmallVectorImpl<SDValue> &Results,
+                                       SelectionDAG &DAG) const;
+
     /// LowerOperation - Provide custom lowering hooks for some operations.
     virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
 
+    /// ReplaceNodeResults - Replace the results of node with an illegal result
+    /// type with new values built out of custom code.
+    ///
+    virtual void ReplaceNodeResults(SDNode *N, SmallVectorImpl<SDValue>&Results,
+                                    SelectionDAG &DAG) const;
+
     /// getTargetNodeName - This method returns the name of a target specific
     //  DAG node.
     virtual const char *getTargetNodeName(unsigned Opcode) const;