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[LoongArch] Revert "Add patterns to support vector type average instructions generation" #198306

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Merged
heiher merged 1 commit into from
May 20, 2026
Merged

[LoongArch] Revert "Add patterns to support vector type average instructions generation" #198306

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16 changes: 0 additions & 16 deletions llvm/lib/Target/LoongArch/LoongArchLASXInstrInfo.td
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Original file line number Diff line number Diff line change
Expand Up @@ -2121,22 +2121,6 @@ def : Pat<(v4i32(fp_to_uint v4f64:$vj)),
sub_128)>;

// XVAVG_{B/H/W/D/BU/HU/WU/DU}, XVAVGR_{B/H/W/D/BU/HU/WU/DU}
defm : VAvgPat<sra, "XVAVG_B", v32i8>;
defm : VAvgPat<sra, "XVAVG_H", v16i16>;
defm : VAvgPat<sra, "XVAVG_W", v8i32>;
defm : VAvgPat<sra, "XVAVG_D", v4i64>;
defm : VAvgPat<srl, "XVAVG_BU", v32i8>;
defm : VAvgPat<srl, "XVAVG_HU", v16i16>;
defm : VAvgPat<srl, "XVAVG_WU", v8i32>;
defm : VAvgPat<srl, "XVAVG_DU", v4i64>;
defm : VAvgrPat<sra, "XVAVGR_B", v32i8>;
defm : VAvgrPat<sra, "XVAVGR_H", v16i16>;
defm : VAvgrPat<sra, "XVAVGR_W", v8i32>;
defm : VAvgrPat<sra, "XVAVGR_D", v4i64>;
defm : VAvgrPat<srl, "XVAVGR_BU", v32i8>;
defm : VAvgrPat<srl, "XVAVGR_HU", v16i16>;
defm : VAvgrPat<srl, "XVAVGR_WU", v8i32>;
defm : VAvgrPat<srl, "XVAVGR_DU", v4i64>;
defm : PatXrXr<avgfloors, "XVAVG">;
defm : PatXrXr<avgceils, "XVAVGR">;
defm : PatXrXrU<avgflooru, "XVAVG">;
Expand Down
28 changes: 0 additions & 28 deletions llvm/lib/Target/LoongArch/LoongArchLSXInstrInfo.td
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Expand Up @@ -1589,18 +1589,6 @@ multiclass InsertExtractPatV2<ValueType vecty, ValueType elemty> {
}
}

multiclass VAvgPat<SDPatternOperator OpNode, string Inst, ValueType vt> {
def : Pat<(OpNode (vt (add vt:$vj, vt:$vk)), (vt (vsplat_imm_eq_1))),
(!cast<LAInst>(Inst) vt:$vj, vt:$vk)>;
}

multiclass VAvgrPat<SDPatternOperator OpNode, string Inst, ValueType vt> {
def : Pat<(OpNode (vt (add (vt (add vt:$vj, vt:$vk)),
(vt (vsplat_imm_eq_1)))),
(vt (vsplat_imm_eq_1))),
(!cast<LAInst>(Inst) vt:$vj, vt:$vk)>;
}

let Predicates = [HasExtLSX] in {

// VADD_{B/H/W/D}
Expand Down Expand Up @@ -2319,22 +2307,6 @@ def : Pat<(f64 f64imm_vldi:$in),
(f64 (EXTRACT_SUBREG (VLDI (to_f64imm_vldi f64imm_vldi:$in)), sub_64))>;

// VAVG_{B/H/W/D/BU/HU/WU/DU}, VAVGR_{B/H/W/D/BU/HU/WU/DU}
defm : VAvgPat<sra, "VAVG_B", v16i8>;
defm : VAvgPat<sra, "VAVG_H", v8i16>;
defm : VAvgPat<sra, "VAVG_W", v4i32>;
defm : VAvgPat<sra, "VAVG_D", v2i64>;
defm : VAvgPat<srl, "VAVG_BU", v16i8>;
defm : VAvgPat<srl, "VAVG_HU", v8i16>;
defm : VAvgPat<srl, "VAVG_WU", v4i32>;
defm : VAvgPat<srl, "VAVG_DU", v2i64>;
defm : VAvgrPat<sra, "VAVGR_B", v16i8>;
defm : VAvgrPat<sra, "VAVGR_H", v8i16>;
defm : VAvgrPat<sra, "VAVGR_W", v4i32>;
defm : VAvgrPat<sra, "VAVGR_D", v2i64>;
defm : VAvgrPat<srl, "VAVGR_BU", v16i8>;
defm : VAvgrPat<srl, "VAVGR_HU", v8i16>;
defm : VAvgrPat<srl, "VAVGR_WU", v4i32>;
defm : VAvgrPat<srl, "VAVGR_DU", v2i64>;
defm : PatVrVr<avgfloors, "VAVG">;
defm : PatVrVr<avgceils, "VAVGR">;
defm : PatVrVrU<avgflooru, "VAVG">;
Expand Down
321 changes: 0 additions & 321 deletions llvm/test/CodeGen/LoongArch/lasx/ir-instruction/avg.ll
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