Revert "[AArch64][SME] Add intrinsics for vector groups ZERO" (#93195)

Reverts #88114

Author: Lukacma

clang/include/clang/Basic/arm_sme.td

@@ -146,25 +146,6 @@ let TargetGuard = "sme" in {
                              [IsOverloadNone, IsStreamingCompatible, IsOutZA]>;
 }
 
-let TargetGuard = "sme2p1" in {
-  def SVZERO_ZA64_VG1x2 : SInst<"svzero_za64_vg1x2", "vm", "", MergeNone, "aarch64_sme_zero_za64_vg1x2",
-                            [IsOverloadNone, IsStreaming, IsInOutZA]>;
-  def SVZERO_ZA64_VG1x4 : SInst<"svzero_za64_vg1x4", "vm", "", MergeNone, "aarch64_sme_zero_za64_vg1x4",
-                            [IsOverloadNone, IsStreaming, IsInOutZA]>;
-  def SVZERO_ZA64_VG2x1 : SInst<"svzero_za64_vg2x1", "vm", "", MergeNone, "aarch64_sme_zero_za64_vg2x1",
-                            [IsOverloadNone, IsStreaming, IsInOutZA]>;
-  def SVZERO_ZA64_VG2x2 : SInst<"svzero_za64_vg2x2", "vm", "", MergeNone, "aarch64_sme_zero_za64_vg2x2",
-                            [IsOverloadNone, IsStreaming, IsInOutZA]>;
-  def SVZERO_ZA64_VG2x4 : SInst<"svzero_za64_vg2x4", "vm", "", MergeNone, "aarch64_sme_zero_za64_vg2x4",
-                            [IsOverloadNone, IsStreaming, IsInOutZA]>;
-  def SVZERO_ZA64_VG4x1 : SInst<"svzero_za64_vg4x1", "vm", "", MergeNone, "aarch64_sme_zero_za64_vg4x1",
-                            [IsOverloadNone, IsStreaming, IsInOutZA]>;
-  def SVZERO_ZA64_VG4x2 : SInst<"svzero_za64_vg4x2", "vm", "", MergeNone, "aarch64_sme_zero_za64_vg4x2",
-                            [IsOverloadNone, IsStreaming, IsInOutZA]>;
-  def SVZERO_ZA64_VG4x4 : SInst<"svzero_za64_vg4x4", "vm", "", MergeNone, "aarch64_sme_zero_za64_vg4x4",
-                            [IsOverloadNone, IsStreaming, IsInOutZA]>;
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // SME - Counting elements in a streaming vector
 

clang/test/CodeGen/aarch64-sme2p1-intrinsics/acle_sme2p1_zero.c

@@ -3361,12 +3361,6 @@ let TargetPrefix = "aarch64" in {
   def int_aarch64_sve_bfmlslt : SME2_BFMLS_Intrinsic;
   def int_aarch64_sve_bfmlslt_lane : SME2_BFMLS_Lane_Intrinsic;
 
-  // Multi-vector zeroing
-
-  foreach vg = ["vg1x2", "vg1x4", "vg2x1", "vg2x2", "vg2x4", "vg4x1", "vg4x2", "vg4x4"] in {
-    def int_aarch64_sme_zero_za64_ # vg : DefaultAttrsIntrinsic<[], [llvm_i32_ty],  [IntrNoMem, IntrHasSideEffects]>;
-  }
-  
   // Multi-vector signed saturating doubling multiply high
 
   def int_aarch64_sve_sqdmulh_single_vgx2 : SME2_VG2_Multi_Single_Intrinsic;

llvm/include/llvm/IR/IntrinsicsAArch64.td

@@ -104,13 +104,6 @@ class sme2_move_to_tile_pseudo<string name, Operand tile_imm, Operand imm_ty, Re
   let usesCustomInserter = 1;
 }
 
-class sem2p1_zero_matrix_pseudo<string name, Operand index_ty, SMEMatrixTypeEnum za_flag>
-    : SMEPseudo2Instr<name, 0>,
-      Pseudo<(outs), (ins MatrixIndexGPR32Op8_11:$Rs, index_ty:$imm), []> {
-  let SMEMatrixType = za_flag;
-  let usesCustomInserter = 1;
-}
-
 //===----------------------------------------------------------------------===//
 // SME pattern match helpers.
 //===----------------------------------------------------------------------===//
@@ -196,9 +189,6 @@ class SME2_Tile_VG4_Multi_Pat<string name, SDPatternOperator intrinsic, Operand
     : Pat<(intrinsic tile_imm:$tile, (i32 (tileslice MatrixIndexGPR32Op12_15:$base, index_ty:$offset)), vt:$Zn1, vt:$Zn2, vt:$Zn3, vt:$Zn4),
           (!cast<Instruction>(name # _PSEUDO) $tile, $base, $offset, (REG_SEQUENCE ZPR4Mul4, vt:$Zn1, zsub0, vt:$Zn2, zsub1, vt:$Zn3, zsub2, vt:$Zn4, zsub3))>;
 
-class SME2_Zero_Matrix_Pat<string name, SDPatternOperator intrinsic, Operand offset_ty, ComplexPattern tileslice>
-    : Pat<(intrinsic (i32 (tileslice MatrixIndexGPR32Op8_11:$base, offset_ty:$offset))),
-    (!cast<Instruction>(name) $base, $offset)>; 
 //===----------------------------------------------------------------------===//
 // SME pattern match helpers.
 //===----------------------------------------------------------------------===//
@@ -4825,57 +4815,39 @@ class sme2p1_zero_matrix<bits<6> opc, Operand index_ty, string mnemonic,
 }
 
 multiclass sme2p1_zero_matrix<string mnemonic> {
-  def _VG2_Z : sme2p1_zero_matrix<{0b000,?,?,?}, sme_elm_idx0_7, mnemonic, "vgx2">, SMEPseudo2Instr<NAME # _VG2_Z , 1> {
+  def _VG2_Z : sme2p1_zero_matrix<{0b000,?,?,?}, sme_elm_idx0_7, mnemonic, "vgx2"> {
     bits<3> imm;
     let Inst{2-0} = imm;
   }
-  def _2Z : sme2p1_zero_matrix<{0b001,?,?,?}, uimm3s2range, mnemonic>, SMEPseudo2Instr<NAME # _2Z, 1> {
+  def _2Z : sme2p1_zero_matrix<{0b001,?,?,?}, uimm3s2range, mnemonic> {
     bits<3> imm;
     let Inst{2-0} = imm;
   }
-  def _VG2_2Z : sme2p1_zero_matrix<{0b0100,?,?}, uimm2s2range, mnemonic, "vgx2">, SMEPseudo2Instr<NAME # _VG2_2Z, 1> {
+  def _VG2_2Z : sme2p1_zero_matrix<{0b0100,?,?}, uimm2s2range, mnemonic, "vgx2"> {
     bits<2> imm;
     let Inst{1-0} = imm;
   }
-  def _VG4_2Z : sme2p1_zero_matrix<{0b0110,?,?}, uimm2s2range, mnemonic, "vgx4">, SMEPseudo2Instr<NAME # _VG4_2Z, 1> {
+  def _VG4_2Z : sme2p1_zero_matrix<{0b0110,?,?}, uimm2s2range, mnemonic, "vgx4"> {
     bits<2> imm;
     let Inst{1-0} = imm;
   }
-  def _VG4_Z : sme2p1_zero_matrix<{0b100,?,?,?}, sme_elm_idx0_7, mnemonic, "vgx4">, SMEPseudo2Instr<NAME # _VG4_Z, 1> {
+  def _VG4_Z : sme2p1_zero_matrix<{0b100,?,?,?}, sme_elm_idx0_7, mnemonic, "vgx4"> {
     bits<3> imm;
     let Inst{2-0} = imm;
   }
-  def _4Z : sme2p1_zero_matrix<{0b1010,?,?}, uimm2s4range, mnemonic>, SMEPseudo2Instr<NAME # _4Z, 1> {
+  def _4Z : sme2p1_zero_matrix<{0b1010,?,?}, uimm2s4range, mnemonic> {
     bits<2> imm;
     let Inst{1-0} = imm;
   }
-  def _VG2_4Z : sme2p1_zero_matrix<{0b11000,?}, uimm1s4range, mnemonic, "vgx2">, SMEPseudo2Instr<NAME # _VG2_4Z, 1> {
+  def _VG2_4Z :sme2p1_zero_matrix<{0b11000,?}, uimm1s4range, mnemonic, "vgx2"> {
     bits<1> imm;
     let Inst{0}   = imm;
   }
-  def _VG4_4Z : sme2p1_zero_matrix<{0b11100,?}, uimm1s4range, mnemonic, "vgx4">, SMEPseudo2Instr<NAME # _VG4_4Z, 1> {
+  def _VG4_4Z :sme2p1_zero_matrix<{0b11100,?}, uimm1s4range, mnemonic, "vgx4"> {
     bits<1> imm;
     let Inst{0}   = imm;
   }
-
-  def NAME # _VG2_Z_PSEUDO : sem2p1_zero_matrix_pseudo<NAME # _VG2_Z, sme_elm_idx0_7, SMEMatrixArray>;
-  def NAME # _VG4_Z_PSEUDO : sem2p1_zero_matrix_pseudo<NAME # _VG4_Z, sme_elm_idx0_7, SMEMatrixArray>;
-  def NAME # _2Z_PSEUDO : sem2p1_zero_matrix_pseudo<NAME # _2Z, uimm2s2range, SMEMatrixArray>;
-  def NAME # _VG2_2Z_PSEUDO : sem2p1_zero_matrix_pseudo<NAME # _VG2_2Z, uimm1s2range, SMEMatrixArray>;
-  def NAME # _VG4_2Z_PSEUDO : sem2p1_zero_matrix_pseudo<NAME # _VG4_2Z, uimm1s2range, SMEMatrixArray>;
-  def NAME # _4Z_PSEUDO : sem2p1_zero_matrix_pseudo<NAME # _4Z, uimm1s4range, SMEMatrixArray>;
-  def NAME # _VG2_4Z_PSEUDO : sem2p1_zero_matrix_pseudo<NAME # _VG2_4Z, uimm0s4range, SMEMatrixArray>;
-  def NAME # _VG4_4Z_PSEUDO : sem2p1_zero_matrix_pseudo<NAME # _VG4_4Z, uimm0s4range, SMEMatrixArray>;
-
-  def : SME2_Zero_Matrix_Pat<NAME # _VG2_Z_PSEUDO, int_aarch64_sme_zero_za64_vg1x2, sme_elm_idx0_7, tileslice16>;
-  def : SME2_Zero_Matrix_Pat<NAME # _VG4_Z_PSEUDO, int_aarch64_sme_zero_za64_vg1x4, sme_elm_idx0_7, tileslice16>;
-  def : SME2_Zero_Matrix_Pat<NAME # _2Z_PSEUDO, int_aarch64_sme_zero_za64_vg2x1, uimm2s2range, tileslicerange2s2>;
-  def : SME2_Zero_Matrix_Pat<NAME # _VG2_2Z_PSEUDO, int_aarch64_sme_zero_za64_vg2x2, uimm1s2range, tileslicerange1s2>;
-  def : SME2_Zero_Matrix_Pat<NAME # _VG4_2Z_PSEUDO, int_aarch64_sme_zero_za64_vg2x4, uimm1s2range, tileslicerange1s2>;
-  def : SME2_Zero_Matrix_Pat<NAME # _4Z_PSEUDO, int_aarch64_sme_zero_za64_vg4x1, uimm1s4range, tileslicerange1s4>;
-  def : SME2_Zero_Matrix_Pat<NAME # _VG2_4Z_PSEUDO, int_aarch64_sme_zero_za64_vg4x2, uimm0s4range, tileslicerange0s4>;
-  def : SME2_Zero_Matrix_Pat<NAME # _VG4_4Z_PSEUDO, int_aarch64_sme_zero_za64_vg4x4, uimm0s4range, tileslicerange0s4>;
-} 
+}
 
 //===----------------------------------------------------------------------===//
 // SME2.1 lookup table expand two non-contiguous registers