1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-22 10:42:39 +01:00
llvm-mirror/lib/Target/AArch64/AArch64SMEInstrInfo.td

144 lines
5.5 KiB
TableGen
Raw Permalink Normal View History

[AArch64][SME] Add matrix register definitions and parsing support SME introduces the ZA array, a new piece of architectural register state consisting of a matrix of [SVLb x SVLb] bytes, where SVL is the implementation defined Streaming SVE vector length and SVLb is the number of 8-bit elements in a vector of SVL bits. SME instructions consist of three types of matrix operands: * Tiles: a ZA tile is a square, two-dimensional sub-array of elements within the ZA array. These tiles make up the larger accumulator array and the granularity varies based on the element size, i.e. - ZAQ0..ZAQ15 (smallest tile granule) - ZAD0..ZAD7 - ZAS0..ZAS3 - ZAH0..ZAH1 or ZAB0 (largest tile granule, single tile) * Tile vectors: similar to regular tiles, but have an extra 'h' or 'v' to tell how the vector at [reg+offset] is layed out in the tile, horizontally or vertically. E.g. za1h.h or za15v.q, which corresponds to vectors in registers ZAH1 and ZAQ15, respectively. * Accumulator matrix: this is the entire accumulator array ZA. This patch adds the register classes and related operands and parsing for SME instructions operating on the accumulator array. The ADDHA and ADDVA instructions which operate on tiles are also added in this patch to make some use of the code added, later patches will make use of the other operands introduced here. The reference can be found here: https://developer.arm.com/documentation/ddi0602/2021-06 Co-authored by: Sander de Smalen (@sdesmalen) Reviewed By: david-arm Differential Revision: https://reviews.llvm.org/D105570
2021-07-14 10:01:19 +02:00
//=- AArch64SMEInstrInfo.td - AArch64 SME Instructions -*- tablegen -*-----=//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// AArch64 Scalable Matrix Extension (SME) Instruction definitions.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Add vector elements horizontally or vertically to ZA tile.
//===----------------------------------------------------------------------===//
let Predicates = [HasSME] in {
def ADDHA_MPPZ_S : sme_add_vector_to_tile_u32<0b0, "addha">;
def ADDVA_MPPZ_S : sme_add_vector_to_tile_u32<0b1, "addva">;
}
let Predicates = [HasSMEI64] in {
def ADDHA_MPPZ_D : sme_add_vector_to_tile_u64<0b0, "addha">;
def ADDVA_MPPZ_D : sme_add_vector_to_tile_u64<0b1, "addva">;
}
let Predicates = [HasSME] in {
//===----------------------------------------------------------------------===//
// Outer products
//===----------------------------------------------------------------------===//
defm BFMOPA_MPPZZ : sme_bf16_outer_product<0b0, "bfmopa">;
defm BFMOPS_MPPZZ : sme_bf16_outer_product<0b1, "bfmops">;
def FMOPA_MPPZZ_S : sme_outer_product_fp32<0b0, "fmopa">;
def FMOPS_MPPZZ_S : sme_outer_product_fp32<0b1, "fmops">;
}
let Predicates = [HasSMEF64] in {
def FMOPA_MPPZZ_D : sme_outer_product_fp64<0b0, "fmopa">;
def FMOPS_MPPZZ_D : sme_outer_product_fp64<0b1, "fmops">;
}
let Predicates = [HasSME] in {
defm FMOPAL_MPPZZ : sme_f16_outer_product<0b0, "fmopa">;
defm FMOPSL_MPPZZ : sme_f16_outer_product<0b1, "fmops">;
def SMOPA_MPPZZ_S : sme_int_outer_product_i32<0b000, "smopa">;
def SMOPS_MPPZZ_S : sme_int_outer_product_i32<0b001, "smops">;
def UMOPA_MPPZZ_S : sme_int_outer_product_i32<0b110, "umopa">;
def UMOPS_MPPZZ_S : sme_int_outer_product_i32<0b111, "umops">;
def SUMOPA_MPPZZ_S : sme_int_outer_product_i32<0b010, "sumopa">;
def SUMOPS_MPPZZ_S : sme_int_outer_product_i32<0b011, "sumops">;
def USMOPA_MPPZZ_S : sme_int_outer_product_i32<0b100, "usmopa">;
def USMOPS_MPPZZ_S : sme_int_outer_product_i32<0b101, "usmops">;
}
let Predicates = [HasSMEI64] in {
def SMOPA_MPPZZ_D : sme_int_outer_product_i64<0b000, "smopa">;
def SMOPS_MPPZZ_D : sme_int_outer_product_i64<0b001, "smops">;
def UMOPA_MPPZZ_D : sme_int_outer_product_i64<0b110, "umopa">;
def UMOPS_MPPZZ_D : sme_int_outer_product_i64<0b111, "umops">;
def SUMOPA_MPPZZ_D : sme_int_outer_product_i64<0b010, "sumopa">;
def SUMOPS_MPPZZ_D : sme_int_outer_product_i64<0b011, "sumops">;
def USMOPA_MPPZZ_D : sme_int_outer_product_i64<0b100, "usmopa">;
def USMOPS_MPPZZ_D : sme_int_outer_product_i64<0b101, "usmops">;
}
let Predicates = [HasSME] in {
//===----------------------------------------------------------------------===//
// Loads and stores
//===----------------------------------------------------------------------===//
defm LD1_MXIPXX : sme_mem_ld_ss<"ld1">;
defm ST1_MXIPXX : sme_mem_st_ss<"st1">;
//===----------------------------------------------------------------------===//
// Spill + fill
//===----------------------------------------------------------------------===//
defm LDR_ZA : sme_fill<"ldr">;
defm STR_ZA : sme_spill<"str">;
//===----------------------------------------------------------------------===//
// Move instructions
//===----------------------------------------------------------------------===//
defm INSERT_MXIPZ : sme_vector_to_tile<"mova">;
defm EXTRACT_ZPMXI : sme_tile_to_vector<"mova">;
//===----------------------------------------------------------------------===//
// Zero instruction
//===----------------------------------------------------------------------===//
defm ZERO_M : sme_zero<"zero">;
2021-07-20 09:19:10 +02:00
//===----------------------------------------------------------------------===//
// Mode selection and state access instructions
//===----------------------------------------------------------------------===//
// SME defines three pstate fields to set or clear PSTATE.SM, PSTATE.ZA, or
// both fields:
//
// MSR SVCRSM, #<imm1>
// MSR SVCRZA, #<imm1>
// MSR SVCRSMZA, #<imm1>
//
// It's tricky to using the existing pstate operand defined in
// AArch64SystemOperands.td since it only encodes 5 bits including op1;op2,
// when these fields are also encoded in CRm[3:1].
class MSRpstatesvcrImm0_1
: PstateWriteSimple<(ins svcr_op:$pstatefield, imm0_1:$imm), "msr",
"\t$pstatefield, $imm">,
Sched<[WriteSys]> {
bits<3> pstatefield;
bit imm;
let Inst{18-16} = 0b011; // op1
let Inst{11-9} = pstatefield;
let Inst{8} = imm;
let Inst{7-5} = 0b011; // op2
}
def MSRpstatesvcrImm1 : MSRpstatesvcrImm0_1;
def : InstAlias<"smstart", (MSRpstatesvcrImm1 0b011, 0b1)>;
def : InstAlias<"smstart sm", (MSRpstatesvcrImm1 0b001, 0b1)>;
def : InstAlias<"smstart za", (MSRpstatesvcrImm1 0b010, 0b1)>;
def : InstAlias<"smstop", (MSRpstatesvcrImm1 0b011, 0b0)>;
def : InstAlias<"smstop sm", (MSRpstatesvcrImm1 0b001, 0b0)>;
def : InstAlias<"smstop za", (MSRpstatesvcrImm1 0b010, 0b0)>;
//===----------------------------------------------------------------------===//
// SVE2 instructions
//===----------------------------------------------------------------------===//
def REVD_ZPmZ : sve2_int_perm_revd<"revd">;
defm SCLAMP_ZZZ : sve2_clamp<"sclamp", 0b0>;
defm UCLAMP_ZZZ : sve2_clamp<"uclamp", 0b1>;
defm DUP_PPzPRI : sve2_int_perm_dup_p<"dup">;
} // End let Predicates = [HasSME]