lib/Target/R600/AMDILInstrInfo.td

//===------------ AMDILInstrInfo.td - AMDIL Target ------*-tablegen-*------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//==-----------------------------------------------------------------------===//
//
// This file describes the AMDIL instructions in TableGen format.
//
//===----------------------------------------------------------------------===//
//===--------------------------------------------------------------------===//
// Custom Operands
//===--------------------------------------------------------------------===//
def brtarget   : Operand<OtherVT>;

//===--------------------------------------------------------------------===//
// Custom Selection DAG Type Profiles
//===--------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Generic Profile Types
//===----------------------------------------------------------------------===//

def SDTIL_GenBinaryOp : SDTypeProfile<1, 2, [
    SDTCisSameAs<0, 1>, SDTCisSameAs<1, 2>
    ]>;
def SDTIL_GenTernaryOp : SDTypeProfile<1, 3, [
    SDTCisSameAs<0, 1>, SDTCisSameAs<1, 2>, SDTCisSameAs<2, 3>
    ]>;
def SDTIL_GenVecBuild : SDTypeProfile<1, 1, [
    SDTCisEltOfVec<1, 0>
    ]>;

//===----------------------------------------------------------------------===//
// Flow Control Profile Types
//===----------------------------------------------------------------------===//
// Branch instruction where second and third are basic blocks
def SDTIL_BRCond : SDTypeProfile<0, 2, [
    SDTCisVT<0, OtherVT>
    ]>;

//===--------------------------------------------------------------------===//
// Custom Selection DAG Nodes
//===--------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Flow Control DAG Nodes
//===----------------------------------------------------------------------===//
def IL_brcond      : SDNode<"AMDGPUISD::BRANCH_COND", SDTIL_BRCond, [SDNPHasChain]>;

//===----------------------------------------------------------------------===//
// Call/Return DAG Nodes
//===----------------------------------------------------------------------===//
def IL_retflag       : SDNode<"AMDGPUISD::RET_FLAG", SDTNone,
    [SDNPHasChain, SDNPOptInGlue]>;

//===--------------------------------------------------------------------===//
// Instructions
//===--------------------------------------------------------------------===//
// Floating point math functions
def IL_div_inf      : SDNode<"AMDGPUISD::DIV_INF", SDTIL_GenBinaryOp>;

//===----------------------------------------------------------------------===//
// Integer functions
//===----------------------------------------------------------------------===//
def IL_umul        : SDNode<"AMDGPUISD::UMUL"    , SDTIntBinOp,
    [SDNPCommutative, SDNPAssociative]>;

//===--------------------------------------------------------------------===//
// Custom Pattern DAG Nodes
//===--------------------------------------------------------------------===//
def global_store : PatFrag<(ops node:$val, node:$ptr),
    (store node:$val, node:$ptr), [{
        return isGlobalStore(dyn_cast<StoreSDNode>(N));
}]>;

//===----------------------------------------------------------------------===//
// Load pattern fragments
//===----------------------------------------------------------------------===//
// Global address space loads
def global_load : PatFrag<(ops node:$ptr), (load node:$ptr), [{
    return isGlobalLoad(dyn_cast<LoadSDNode>(N));
}]>;
// Constant address space loads
def constant_load : PatFrag<(ops node:$ptr), (load node:$ptr), [{
    return isConstantLoad(dyn_cast<LoadSDNode>(N), -1);
}]>;

//===----------------------------------------------------------------------===//
// Complex addressing mode patterns
//===----------------------------------------------------------------------===//
def ADDR : ComplexPattern<i32, 2, "SelectADDR", [], []>;
def ADDRF : ComplexPattern<i32, 2, "SelectADDR", [frameindex], []>;
def ADDR64 : ComplexPattern<i64, 2, "SelectADDR64", [], []>;
def ADDR64F : ComplexPattern<i64, 2, "SelectADDR64", [frameindex], []>;

//===----------------------------------------------------------------------===//
// Instruction format classes
//===----------------------------------------------------------------------===//
class ILFormat<dag outs, dag ins, string asmstr, list<dag> pattern>
: Instruction {

     let Namespace = "AMDGPU";
     dag OutOperandList = outs;
     dag InOperandList = ins;
     let Pattern = pattern;
     let AsmString = !strconcat(asmstr, "\n");
     let isPseudo = 1;
     let Itinerary = NullALU;
     bit hasIEEEFlag = 0;
     bit hasZeroOpFlag = 0;
     let mayLoad = 0;
     let mayStore = 0;
     let hasSideEffects = 0;
}

//===--------------------------------------------------------------------===//
// Multiclass Instruction formats
//===--------------------------------------------------------------------===//
// Multiclass that handles branch instructions
multiclass BranchConditional<SDNode Op, RegisterClass rci, RegisterClass rcf> {
    def _i32 : ILFormat<(outs),
  (ins brtarget:$target, rci:$src0),
        "; i32 Pseudo branch instruction",
  [(Op bb:$target, (i32 rci:$src0))]>;
    def _f32 : ILFormat<(outs),
  (ins brtarget:$target, rcf:$src0),
        "; f32 Pseudo branch instruction",
  [(Op bb:$target, (f32 rcf:$src0))]>;
}

// Only scalar types should generate flow control
multiclass BranchInstr<string name> {
  def _i32 : ILFormat<(outs), (ins GPRI32:$src),
      !strconcat(name, " $src"), []>;
  def _f32 : ILFormat<(outs), (ins GPRF32:$src),
      !strconcat(name, " $src"), []>;
}
// Only scalar types should generate flow control
multiclass BranchInstr2<string name> {
  def _i32 : ILFormat<(outs), (ins GPRI32:$src0, GPRI32:$src1),
      !strconcat(name, " $src0, $src1"), []>;
  def _f32 : ILFormat<(outs), (ins GPRF32:$src0, GPRF32:$src1),
      !strconcat(name, " $src0, $src1"), []>;
}

//===--------------------------------------------------------------------===//
// Intrinsics support
//===--------------------------------------------------------------------===//
include "AMDILIntrinsics.td"