AMDGPUInstructions.td [plain text]
//===-- AMDGPUInstructions.td - Common instruction defs ---*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains instruction defs that are common to all hw codegen
// targets.
//
//===----------------------------------------------------------------------===//
class AMDGPUInst <dag outs, dag ins, string asm, list<dag> pattern> : Instruction {
field bit isRegisterLoad = 0;
field bit isRegisterStore = 0;
let Namespace = "AMDGPU";
let OutOperandList = outs;
let InOperandList = ins;
let AsmString = asm;
let Pattern = pattern;
let Itinerary = NullALU;
let TSFlags{63} = isRegisterLoad;
let TSFlags{62} = isRegisterStore;
}
class AMDGPUShaderInst <dag outs, dag ins, string asm, list<dag> pattern>
: AMDGPUInst<outs, ins, asm, pattern> {
field bits<32> Inst = 0xffffffff;
}
def InstFlag : OperandWithDefaultOps <i32, (ops (i32 0))>;
def ADDRIndirect : ComplexPattern<iPTR, 2, "SelectADDRIndirect", [], []>;
//===----------------------------------------------------------------------===//
// PatLeafs for floating-point comparisons
//===----------------------------------------------------------------------===//
def COND_OEQ : PatLeaf <
(cond),
[{return N->get() == ISD::SETOEQ || N->get() == ISD::SETEQ;}]
>;
def COND_OGT : PatLeaf <
(cond),
[{return N->get() == ISD::SETOGT || N->get() == ISD::SETGT;}]
>;
def COND_OGE : PatLeaf <
(cond),
[{return N->get() == ISD::SETOGE || N->get() == ISD::SETGE;}]
>;
def COND_OLT : PatLeaf <
(cond),
[{return N->get() == ISD::SETOLT || N->get() == ISD::SETLT;}]
>;
def COND_OLE : PatLeaf <
(cond),
[{return N->get() == ISD::SETOLE || N->get() == ISD::SETLE;}]
>;
def COND_UNE : PatLeaf <
(cond),
[{return N->get() == ISD::SETUNE || N->get() == ISD::SETNE;}]
>;
def COND_O : PatLeaf <(cond), [{return N->get() == ISD::SETO;}]>;
def COND_UO : PatLeaf <(cond), [{return N->get() == ISD::SETUO;}]>;
//===----------------------------------------------------------------------===//
// PatLeafs for unsigned comparisons
//===----------------------------------------------------------------------===//
def COND_UGT : PatLeaf <(cond), [{return N->get() == ISD::SETUGT;}]>;
def COND_UGE : PatLeaf <(cond), [{return N->get() == ISD::SETUGE;}]>;
def COND_ULT : PatLeaf <(cond), [{return N->get() == ISD::SETULT;}]>;
def COND_ULE : PatLeaf <(cond), [{return N->get() == ISD::SETULE;}]>;
//===----------------------------------------------------------------------===//
// PatLeafs for signed comparisons
//===----------------------------------------------------------------------===//
def COND_SGT : PatLeaf <(cond), [{return N->get() == ISD::SETGT;}]>;
def COND_SGE : PatLeaf <(cond), [{return N->get() == ISD::SETGE;}]>;
def COND_SLT : PatLeaf <(cond), [{return N->get() == ISD::SETLT;}]>;
def COND_SLE : PatLeaf <(cond), [{return N->get() == ISD::SETLE;}]>;
//===----------------------------------------------------------------------===//
// PatLeafs for integer equality
//===----------------------------------------------------------------------===//
def COND_EQ : PatLeaf <
(cond),
[{return N->get() == ISD::SETEQ || N->get() == ISD::SETUEQ;}]
>;
def COND_NE : PatLeaf <
(cond),
[{return N->get() == ISD::SETNE || N->get() == ISD::SETUNE;}]
>;
def COND_NULL : PatLeaf <
(cond),
[{return false;}]
>;
//===----------------------------------------------------------------------===//
// Load/Store Pattern Fragments
//===----------------------------------------------------------------------===//
def az_extload : PatFrag<(ops node:$ptr), (unindexedload node:$ptr), [{
LoadSDNode *L = cast<LoadSDNode>(N);
return L->getExtensionType() == ISD::ZEXTLOAD ||
L->getExtensionType() == ISD::EXTLOAD;
}]>;
def az_extloadi8 : PatFrag<(ops node:$ptr), (az_extload node:$ptr), [{
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i8;
}]>;
def az_extloadi8_global : PatFrag<(ops node:$ptr), (az_extloadi8 node:$ptr), [{
return isGlobalLoad(dyn_cast<LoadSDNode>(N));
}]>;
def sextloadi8_global : PatFrag<(ops node:$ptr), (sextloadi8 node:$ptr), [{
return isGlobalLoad(dyn_cast<LoadSDNode>(N));
}]>;
def az_extloadi8_constant : PatFrag<(ops node:$ptr), (az_extloadi8 node:$ptr), [{
return isConstantLoad(dyn_cast<LoadSDNode>(N), -1);
}]>;
def sextloadi8_constant : PatFrag<(ops node:$ptr), (sextloadi8 node:$ptr), [{
return isConstantLoad(dyn_cast<LoadSDNode>(N), -1);
}]>;
def az_extloadi8_local : PatFrag<(ops node:$ptr), (az_extloadi8 node:$ptr), [{
return isLocalLoad(dyn_cast<LoadSDNode>(N));
}]>;
def sextloadi8_local : PatFrag<(ops node:$ptr), (sextloadi8 node:$ptr), [{
return isLocalLoad(dyn_cast<LoadSDNode>(N));
}]>;
def az_extloadi16 : PatFrag<(ops node:$ptr), (az_extload node:$ptr), [{
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i16;
}]>;
def az_extloadi16_global : PatFrag<(ops node:$ptr), (az_extloadi16 node:$ptr), [{
return isGlobalLoad(dyn_cast<LoadSDNode>(N));
}]>;
def sextloadi16_global : PatFrag<(ops node:$ptr), (sextloadi16 node:$ptr), [{
return isGlobalLoad(dyn_cast<LoadSDNode>(N));
}]>;
def az_extloadi16_constant : PatFrag<(ops node:$ptr), (az_extloadi16 node:$ptr), [{
return isConstantLoad(dyn_cast<LoadSDNode>(N), -1);
}]>;
def sextloadi16_constant : PatFrag<(ops node:$ptr), (sextloadi16 node:$ptr), [{
return isConstantLoad(dyn_cast<LoadSDNode>(N), -1);
}]>;
def az_extloadi16_local : PatFrag<(ops node:$ptr), (az_extloadi16 node:$ptr), [{
return isLocalLoad(dyn_cast<LoadSDNode>(N));
}]>;
def sextloadi16_local : PatFrag<(ops node:$ptr), (sextloadi16 node:$ptr), [{
return isLocalLoad(dyn_cast<LoadSDNode>(N));
}]>;
def az_extloadi32 : PatFrag<(ops node:$ptr), (az_extload node:$ptr), [{
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i32;
}]>;
def az_extloadi32_global : PatFrag<(ops node:$ptr),
(az_extloadi32 node:$ptr), [{
return isGlobalLoad(dyn_cast<LoadSDNode>(N));
}]>;
def az_extloadi32_constant : PatFrag<(ops node:$ptr),
(az_extloadi32 node:$ptr), [{
return isConstantLoad(dyn_cast<LoadSDNode>(N), -1);
}]>;
def truncstorei8_global : PatFrag<(ops node:$val, node:$ptr),
(truncstorei8 node:$val, node:$ptr), [{
return isGlobalStore(dyn_cast<StoreSDNode>(N));
}]>;
def truncstorei16_global : PatFrag<(ops node:$val, node:$ptr),
(truncstorei16 node:$val, node:$ptr), [{
return isGlobalStore(dyn_cast<StoreSDNode>(N));
}]>;
def local_store : PatFrag<(ops node:$val, node:$ptr),
(store node:$val, node:$ptr), [{
return isLocalStore(dyn_cast<StoreSDNode>(N));
}]>;
def truncstorei8_local : PatFrag<(ops node:$val, node:$ptr),
(truncstorei8 node:$val, node:$ptr), [{
return isLocalStore(dyn_cast<StoreSDNode>(N));
}]>;
def truncstorei16_local : PatFrag<(ops node:$val, node:$ptr),
(truncstorei16 node:$val, node:$ptr), [{
return isLocalStore(dyn_cast<StoreSDNode>(N));
}]>;
def local_load : PatFrag<(ops node:$ptr), (load node:$ptr), [{
return isLocalLoad(dyn_cast<LoadSDNode>(N));
}]>;
def atomic_load_add_local : PatFrag<(ops node:$ptr, node:$value),
(atomic_load_add node:$ptr, node:$value), [{
return dyn_cast<MemSDNode>(N)->getAddressSpace() == AMDGPUAS::LOCAL_ADDRESS;
}]>;
def atomic_load_sub_local : PatFrag<(ops node:$ptr, node:$value),
(atomic_load_sub node:$ptr, node:$value), [{
return dyn_cast<MemSDNode>(N)->getAddressSpace() == AMDGPUAS::LOCAL_ADDRESS;
}]>;
def mskor_global : PatFrag<(ops node:$val, node:$ptr),
(AMDGPUstore_mskor node:$val, node:$ptr), [{
return dyn_cast<MemSDNode>(N)->getAddressSpace() == AMDGPUAS::GLOBAL_ADDRESS;
}]>;
class Constants {
int TWO_PI = 0x40c90fdb;
int PI = 0x40490fdb;
int TWO_PI_INV = 0x3e22f983;
int FP_UINT_MAX_PLUS_1 = 0x4f800000; // 1 << 32 in floating point encoding
}
def CONST : Constants;
def FP_ZERO : PatLeaf <
(fpimm),
[{return N->getValueAPF().isZero();}]
>;
def FP_ONE : PatLeaf <
(fpimm),
[{return N->isExactlyValue(1.0);}]
>;
def U24 : ComplexPattern<i32, 1, "SelectU24", [], []>;
def I24 : ComplexPattern<i32, 1, "SelectI24", [], []>;
let isCodeGenOnly = 1, isPseudo = 1 in {
let usesCustomInserter = 1 in {
class CLAMP <RegisterClass rc> : AMDGPUShaderInst <
(outs rc:$dst),
(ins rc:$src0),
"CLAMP $dst, $src0",
[(set f32:$dst, (int_AMDIL_clamp f32:$src0, (f32 FP_ZERO), (f32 FP_ONE)))]
>;
class FABS <RegisterClass rc> : AMDGPUShaderInst <
(outs rc:$dst),
(ins rc:$src0),
"FABS $dst, $src0",
[(set f32:$dst, (fabs f32:$src0))]
>;
class FNEG <RegisterClass rc> : AMDGPUShaderInst <
(outs rc:$dst),
(ins rc:$src0),
"FNEG $dst, $src0",
[(set f32:$dst, (fneg f32:$src0))]
>;
} // usesCustomInserter = 1
multiclass RegisterLoadStore <RegisterClass dstClass, Operand addrClass,
ComplexPattern addrPat> {
let UseNamedOperandTable = 1 in {
def RegisterLoad : AMDGPUShaderInst <
(outs dstClass:$dst),
(ins addrClass:$addr, i32imm:$chan),
"RegisterLoad $dst, $addr",
[(set i32:$dst, (AMDGPUregister_load addrPat:$addr, (i32 timm:$chan)))]
> {
let isRegisterLoad = 1;
}
def RegisterStore : AMDGPUShaderInst <
(outs),
(ins dstClass:$val, addrClass:$addr, i32imm:$chan),
"RegisterStore $val, $addr",
[(AMDGPUregister_store i32:$val, addrPat:$addr, (i32 timm:$chan))]
> {
let isRegisterStore = 1;
}
}
}
} // End isCodeGenOnly = 1, isPseudo = 1
/* Generic helper patterns for intrinsics */
/* -------------------------------------- */
class POW_Common <AMDGPUInst log_ieee, AMDGPUInst exp_ieee, AMDGPUInst mul>
: Pat <
(fpow f32:$src0, f32:$src1),
(exp_ieee (mul f32:$src1, (log_ieee f32:$src0)))
>;
/* Other helper patterns */
/* --------------------- */
/* Extract element pattern */
class Extract_Element <ValueType sub_type, ValueType vec_type, int sub_idx,
SubRegIndex sub_reg>
: Pat<
(sub_type (vector_extract vec_type:$src, sub_idx)),
(EXTRACT_SUBREG $src, sub_reg)
>;
/* Insert element pattern */
class Insert_Element <ValueType elem_type, ValueType vec_type,
int sub_idx, SubRegIndex sub_reg>
: Pat <
(vector_insert vec_type:$vec, elem_type:$elem, sub_idx),
(INSERT_SUBREG $vec, $elem, sub_reg)
>;
class Vector4_Build <ValueType vecType, ValueType elemType> : Pat <
(vecType (build_vector elemType:$x, elemType:$y, elemType:$z, elemType:$w)),
(INSERT_SUBREG (INSERT_SUBREG (INSERT_SUBREG (INSERT_SUBREG
(vecType (IMPLICIT_DEF)), $x, sub0), $y, sub1), $z, sub2), $w, sub3)
>;
// XXX: Convert to new syntax and use COPY_TO_REG, once the DFAPacketizer
// can handle COPY instructions.
// bitconvert pattern
class BitConvert <ValueType dt, ValueType st, RegisterClass rc> : Pat <
(dt (bitconvert (st rc:$src0))),
(dt rc:$src0)
>;
// XXX: Convert to new syntax and use COPY_TO_REG, once the DFAPacketizer
// can handle COPY instructions.
class DwordAddrPat<ValueType vt, RegisterClass rc> : Pat <
(vt (AMDGPUdwordaddr (vt rc:$addr))),
(vt rc:$addr)
>;
// BFI_INT patterns
multiclass BFIPatterns <Instruction BFI_INT> {
// Definition from ISA doc:
// (y & x) | (z & ~x)
def : Pat <
(or (and i32:$y, i32:$x), (and i32:$z, (not i32:$x))),
(BFI_INT $x, $y, $z)
>;
// SHA-256 Ch function
// z ^ (x & (y ^ z))
def : Pat <
(xor i32:$z, (and i32:$x, (xor i32:$y, i32:$z))),
(BFI_INT $x, $y, $z)
>;
}
// SHA-256 Ma patterns
// ((x & z) | (y & (x | z))) -> BFI_INT (XOR x, y), z, y
class SHA256MaPattern <Instruction BFI_INT, Instruction XOR> : Pat <
(or (and i32:$x, i32:$z), (and i32:$y, (or i32:$x, i32:$z))),
(BFI_INT (XOR i32:$x, i32:$y), i32:$z, i32:$y)
>;
// Bitfield extract patterns
def legalshift32 : ImmLeaf <i32, [{return Imm >=0 && Imm < 32;}]>;
def bfemask : PatLeaf <(imm), [{return isMask_32(N->getZExtValue());}],
SDNodeXForm<imm, [{ return CurDAG->getTargetConstant(CountTrailingOnes_32(N->getZExtValue()), MVT::i32);}]>>;
class BFEPattern <Instruction BFE> : Pat <
(and (srl i32:$x, legalshift32:$y), bfemask:$z),
(BFE $x, $y, $z)
>;
// rotr pattern
class ROTRPattern <Instruction BIT_ALIGN> : Pat <
(rotr i32:$src0, i32:$src1),
(BIT_ALIGN $src0, $src0, $src1)
>;
// 24-bit arithmetic patterns
def umul24 : PatFrag <(ops node:$x, node:$y), (mul node:$x, node:$y)>;
/*
class UMUL24Pattern <Instruction UMUL24> : Pat <
(mul U24:$x, U24:$y),
(UMUL24 $x, $y)
>;
*/
include "R600Instructions.td"
include "SIInstrInfo.td"