mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-01-16 14:31:59 +00:00
These definitions have been moved to common code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23681 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
17f2cf05b3
commit
7b1fe15de0
@ -14,205 +14,6 @@
|
||||
|
||||
include "PowerPCInstrFormats.td"
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Selection DAG Type Constraint definitions.
|
||||
//
|
||||
// Note that the semantics of these constraints are hard coded into tblgen. To
|
||||
// modify or add constraints, you have to hack tblgen.
|
||||
//
|
||||
|
||||
class SDTypeConstraint<int opnum> {
|
||||
int OperandNum = opnum;
|
||||
}
|
||||
|
||||
// SDTCisVT - The specified operand has exactly this VT.
|
||||
class SDTCisVT <int OpNum, ValueType vt> : SDTypeConstraint<OpNum> {
|
||||
ValueType VT = vt;
|
||||
}
|
||||
|
||||
// SDTCisInt - The specified operand is has integer type.
|
||||
class SDTCisInt<int OpNum> : SDTypeConstraint<OpNum>;
|
||||
|
||||
// SDTCisFP - The specified operand is has floating point type.
|
||||
class SDTCisFP <int OpNum> : SDTypeConstraint<OpNum>;
|
||||
|
||||
// SDTCisSameAs - The two specified operands have identical types.
|
||||
class SDTCisSameAs<int OpNum, int OtherOp> : SDTypeConstraint<OpNum> {
|
||||
int OtherOperandNum = OtherOp;
|
||||
}
|
||||
|
||||
// SDTCisVTSmallerThanOp - The specified operand is a VT SDNode, and its type is
|
||||
// smaller than the 'Other' operand.
|
||||
class SDTCisVTSmallerThanOp<int OpNum, int OtherOp> : SDTypeConstraint<OpNum> {
|
||||
int OtherOperandNum = OtherOp;
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Selection DAG Type Profile definitions.
|
||||
//
|
||||
// These use the constraints defined above to describe the type requirements of
|
||||
// the various nodes. These are not hard coded into tblgen, allowing targets to
|
||||
// add their own if needed.
|
||||
//
|
||||
|
||||
// SDTypeProfile - This profile describes the type requirements of a Selection
|
||||
// DAG node.
|
||||
class SDTypeProfile<int numresults, int numoperands,
|
||||
list<SDTypeConstraint> constraints> {
|
||||
int NumResults = numresults;
|
||||
int NumOperands = numoperands;
|
||||
list<SDTypeConstraint> Constraints = constraints;
|
||||
}
|
||||
|
||||
// Builtin profiles.
|
||||
def SDTImm : SDTypeProfile<1, 0, [SDTCisInt<0>]>; // for 'imm'.
|
||||
def SDTVT : SDTypeProfile<1, 0, [SDTCisVT<0, OtherVT>]>; // for 'vt'
|
||||
def SDTIntBinOp : SDTypeProfile<1, 2, [ // add, and, or, xor, udiv, etc.
|
||||
SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisInt<0>
|
||||
]>;
|
||||
def SDTFPBinOp : SDTypeProfile<1, 2, [ // fadd, fmul, etc.
|
||||
SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisFP<0>
|
||||
]>;
|
||||
def SDTIntUnaryOp : SDTypeProfile<1, 1, [ // ctlz
|
||||
SDTCisSameAs<0, 1>, SDTCisInt<0>
|
||||
]>;
|
||||
def SDTFPUnaryOp : SDTypeProfile<1, 1, [ // fneg, fsqrt, etc
|
||||
SDTCisSameAs<0, 1>, SDTCisFP<0>
|
||||
]>;
|
||||
def SDTExtInreg : SDTypeProfile<1, 2, [ // sext_inreg
|
||||
SDTCisSameAs<0, 1>, SDTCisInt<0>, SDTCisVT<2, OtherVT>,
|
||||
SDTCisVTSmallerThanOp<2, 1>
|
||||
]>;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Selection DAG Node Properties.
|
||||
//
|
||||
// Note: These are hard coded into tblgen.
|
||||
//
|
||||
class SDNodeProperty;
|
||||
def SDNPCommutative : SDNodeProperty; // X op Y == Y op X
|
||||
def SDNPAssociative : SDNodeProperty; // (X op Y) op Z == X op (Y op Z)
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Selection DAG Node definitions.
|
||||
//
|
||||
class SDNode<string opcode, SDTypeProfile typeprof,
|
||||
list<SDNodeProperty> props = [], string sdclass = "SDNode"> {
|
||||
string Opcode = opcode;
|
||||
string SDClass = sdclass;
|
||||
list<SDNodeProperty> Properties = props;
|
||||
SDTypeProfile TypeProfile = typeprof;
|
||||
}
|
||||
|
||||
def set;
|
||||
def node;
|
||||
|
||||
def imm : SDNode<"ISD::Constant" , SDTImm , [], "ConstantSDNode">;
|
||||
def vt : SDNode<"ISD::VALUETYPE" , SDTVT , [], "VTSDNode">;
|
||||
def add : SDNode<"ISD::ADD" , SDTIntBinOp ,
|
||||
[SDNPCommutative, SDNPAssociative]>;
|
||||
def sub : SDNode<"ISD::SUB" , SDTIntBinOp>;
|
||||
def mul : SDNode<"ISD::MUL" , SDTIntBinOp,
|
||||
[SDNPCommutative, SDNPAssociative]>;
|
||||
def mulhs : SDNode<"ISD::MULHS" , SDTIntBinOp, [SDNPCommutative]>;
|
||||
def mulhu : SDNode<"ISD::MULHU" , SDTIntBinOp, [SDNPCommutative]>;
|
||||
def sdiv : SDNode<"ISD::SDIV" , SDTIntBinOp>;
|
||||
def udiv : SDNode<"ISD::UDIV" , SDTIntBinOp>;
|
||||
def srem : SDNode<"ISD::SREM" , SDTIntBinOp>;
|
||||
def urem : SDNode<"ISD::UREM" , SDTIntBinOp>;
|
||||
def srl : SDNode<"ISD::SRL" , SDTIntBinOp>;
|
||||
def sra : SDNode<"ISD::SRA" , SDTIntBinOp>;
|
||||
def shl : SDNode<"ISD::SHL" , SDTIntBinOp>;
|
||||
def and : SDNode<"ISD::AND" , SDTIntBinOp,
|
||||
[SDNPCommutative, SDNPAssociative]>;
|
||||
def or : SDNode<"ISD::OR" , SDTIntBinOp,
|
||||
[SDNPCommutative, SDNPAssociative]>;
|
||||
def xor : SDNode<"ISD::XOR" , SDTIntBinOp,
|
||||
[SDNPCommutative, SDNPAssociative]>;
|
||||
def fadd : SDNode<"ISD::FADD" , SDTFPBinOp, [SDNPCommutative]>;
|
||||
def fsub : SDNode<"ISD::FSUB" , SDTFPBinOp>;
|
||||
def fmul : SDNode<"ISD::FMUL" , SDTFPBinOp, [SDNPCommutative]>;
|
||||
def fdiv : SDNode<"ISD::FDIV" , SDTFPBinOp>;
|
||||
def frem : SDNode<"ISD::FREM" , SDTFPBinOp>;
|
||||
def fabs : SDNode<"ISD::FABS" , SDTFPUnaryOp>;
|
||||
def fneg : SDNode<"ISD::FNEG" , SDTFPUnaryOp>;
|
||||
def fsqrt : SDNode<"ISD::FSQRT" , SDTFPUnaryOp>;
|
||||
|
||||
def sext_inreg : SDNode<"ISD::SIGN_EXTEND_INREG", SDTExtInreg>;
|
||||
def ctlz : SDNode<"ISD::CTLZ" , SDTIntUnaryOp>;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Selection DAG Node Transformation Functions.
|
||||
//
|
||||
// This mechanism allows targets to manipulate nodes in the output DAG once a
|
||||
// match has been formed. This is typically used to manipulate immediate
|
||||
// values.
|
||||
//
|
||||
class SDNodeXForm<SDNode opc, code xformFunction> {
|
||||
SDNode Opcode = opc;
|
||||
code XFormFunction = xformFunction;
|
||||
}
|
||||
|
||||
def NOOP_SDNodeXForm : SDNodeXForm<imm, [{}]>;
|
||||
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Selection DAG Pattern Fragments.
|
||||
//
|
||||
// Pattern fragments are reusable chunks of dags that match specific things.
|
||||
// They can take arguments and have C++ predicates that control whether they
|
||||
// match. They are intended to make the patterns for common instructions more
|
||||
// compact and readable.
|
||||
//
|
||||
|
||||
/// PatFrag - Represents a pattern fragment. This can match something on the
|
||||
/// DAG, frame a single node to multiply nested other fragments.
|
||||
///
|
||||
class PatFrag<dag ops, dag frag, code pred = [{}],
|
||||
SDNodeXForm xform = NOOP_SDNodeXForm> {
|
||||
dag Operands = ops;
|
||||
dag Fragment = frag;
|
||||
code Predicate = pred;
|
||||
SDNodeXForm OperandTransform = xform;
|
||||
}
|
||||
|
||||
// PatLeaf's are pattern fragments that have no operands. This is just a helper
|
||||
// to define immediates and other common things concisely.
|
||||
class PatLeaf<dag frag, code pred = [{}], SDNodeXForm xform = NOOP_SDNodeXForm>
|
||||
: PatFrag<(ops), frag, pred, xform>;
|
||||
|
||||
// Leaf fragments.
|
||||
|
||||
def immAllOnes : PatLeaf<(imm), [{ return N->isAllOnesValue(); }]>;
|
||||
def immZero : PatLeaf<(imm), [{ return N->isNullValue(); }]>;
|
||||
|
||||
def vtInt : PatLeaf<(vt), [{ return MVT::isInteger(N->getVT()); }]>;
|
||||
def vtFP : PatLeaf<(vt), [{ return MVT::isFloatingPoint(N->getVT()); }]>;
|
||||
|
||||
// Other helper fragments.
|
||||
|
||||
def not : PatFrag<(ops node:$in), (xor node:$in, immAllOnes)>;
|
||||
def ineg : PatFrag<(ops node:$in), (sub immZero, node:$in)>;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Selection DAG Pattern Support.
|
||||
//
|
||||
// Patterns are what are actually matched against the target-flavored
|
||||
// instruction selection DAG. Instructions defined by the target implicitly
|
||||
// define patterns in most cases, but patterns can also be explicitly added when
|
||||
// an operation is defined by a sequence of instructions (e.g. loading a large
|
||||
// immediate value on RISC targets that do not support immediates as large as
|
||||
// their GPRs).
|
||||
//
|
||||
|
||||
class Pattern<dag patternToMatch, list<dag> resultInstrs> {
|
||||
dag PatternToMatch = patternToMatch;
|
||||
list<dag> ResultInstrs = resultInstrs;
|
||||
}
|
||||
|
||||
// Pat - A simple (but common) form of a pattern, which produces a simple result
|
||||
// not needing a full list.
|
||||
class Pat<dag pattern, dag result> : Pattern<pattern, [result]>;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// PowerPC specific transformation functions and pattern fragments.
|
||||
|
Loading…
x
Reference in New Issue
Block a user