llvm/test/TableGen/GlobalISelCombinerEmitter/builtins/match-table-replacerreg.td

   1 // RUN: llvm-tblgen -I %p/../../../../include -gen-global-isel-combiner \
   2 // RUN:     -combiners=MyCombiner %s | \
   3 // RUN: FileCheck %s
   4
   5 include "llvm/Target/Target.td"
   6 include "llvm/Target/GlobalISel/Combine.td"
   7
   8 def MyTargetISA : InstrInfo;
   9 def MyTarget : Target { let InstructionSet = MyTargetISA; }
  10
  11 def ReplaceMatched : GICombineRule<
  12   (defs root:$dst),
  13   (match  (G_FNEG $tmp, $src),
  14           (G_FNEG $dst, $tmp)),
  15   (apply  (GIReplaceReg $dst, $src))>;
  16
  17 def ReplaceTemp : GICombineRule<
  18   (defs root:$a),
  19   (match    (G_BUILD_VECTOR $tmp, $x, $y),
  20             (G_UNMERGE_VALUES $a, $b, $tmp)),
  21   (apply  (G_UNMERGE_VALUES $a, i32:$new, $y),
  22           (GIReplaceReg $b, $new))>;
  23
  24 def MyCombiner: GICombiner<"GenMyCombiner", [
  25   ReplaceMatched,
  26   ReplaceTemp
  27 ]>;
  28
  29 //      CHECK: const uint8_t *GenMyCombiner::getMatchTable() const {
  30 // CHECK-NEXT:   constexpr static uint8_t MatchTable0[] = {
  31 // CHECK-NEXT:     GIM_SwitchOpcode, /*MI*/0, /*[*/GIMT_Encode2({{[0-9]+}}), GIMT_Encode2({{[0-9]+}}), /*)*//*default:*//*Label 2*/ GIMT_Encode4([[L562:[0-9]+]]),
  32 // CHECK-NEXT:     /*TargetOpcode::G_UNMERGE_VALUES*//*Label 0*/ GIMT_Encode4([[L478:[0-9]+]]), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0),
  33 // CHECK-NEXT:     /*TargetOpcode::G_FNEG*//*Label 1*/ GIMT_Encode4([[L530:[0-9]+]]),
  34 // CHECK-NEXT:     // Label 0: @[[L478]]
  35 // CHECK-NEXT:     GIM_Try, /*On fail goto*//*Label 3*/ GIMT_Encode4([[L529:[0-9]+]]), // Rule ID 1 //
  36 // CHECK-NEXT:       GIM_CheckSimplePredicate, GIMT_Encode2(GICXXPred_Simple_IsRule1Enabled),
  37 // CHECK-NEXT:       GIM_CheckNumOperands, /*MI*/0, /*Expected*/3,
  38 // CHECK-NEXT:       // MIs[0] a
  39 // CHECK-NEXT:       // No operand predicates
  40 // CHECK-NEXT:       // MIs[0] b
  41 // CHECK-NEXT:       // No operand predicates
  42 // CHECK-NEXT:       // MIs[0] tmp
  43 // CHECK-NEXT:       GIM_RecordInsnIgnoreCopies, /*DefineMI*/1, /*MI*/0, /*OpIdx*/2, // MIs[1]
  44 // CHECK-NEXT:       GIM_CheckOpcode, /*MI*/1, GIMT_Encode2(TargetOpcode::G_BUILD_VECTOR),
  45 // CHECK-NEXT:       GIM_CheckNumOperands, /*MI*/1, /*Expected*/3,
  46 // CHECK-NEXT:       // MIs[1] x
  47 // CHECK-NEXT:       // No operand predicates
  48 // CHECK-NEXT:       // MIs[1] y
  49 // CHECK-NEXT:       // No operand predicates
  50 // CHECK-NEXT:       GIM_CheckIsSafeToFold, /*NumInsns*/1,
  51 // CHECK-NEXT:       GIR_MakeTempReg, /*TempRegID*/0, /*TypeID*/GILLT_s32,
  52 // CHECK-NEXT:       // Combiner Rule #1: ReplaceTemp
  53 // CHECK-NEXT:       GIR_BuildRootMI, /*Opcode*/GIMT_Encode2(TargetOpcode::G_UNMERGE_VALUES),
  54 // CHECK-NEXT:       GIR_RootToRootCopy, /*OpIdx*/0, // a
  55 // CHECK-NEXT:       GIR_AddTempRegister, /*InsnID*/0, /*TempRegID*/0, /*TempRegFlags*/GIMT_Encode2(RegState::Define),
  56 // CHECK-NEXT:       GIR_Copy, /*NewInsnID*/0, /*OldInsnID*/1, /*OpIdx*/2, // y
  57 // CHECK-NEXT:       GIR_ReplaceRegWithTempReg, /*OldInsnID*/0, /*OldOpIdx*/1, /*TempRegID*/0,
  58 // CHECK-NEXT:       GIR_EraseRootFromParent_Done,
  59 // CHECK-NEXT:     // Label 3: @[[L529]]
  60 // CHECK-NEXT:     GIM_Reject,
  61 // CHECK-NEXT:     // Label 1: @[[L530]]
  62 // CHECK-NEXT:     GIM_Try, /*On fail goto*//*Label 4*/ GIMT_Encode4([[L561:[0-9]+]]), // Rule ID 0 //
  63 // CHECK-NEXT:       GIM_CheckSimplePredicate, GIMT_Encode2(GICXXPred_Simple_IsRule0Enabled),
  64 // CHECK-NEXT:       // MIs[0] dst
  65 // CHECK-NEXT:       // No operand predicates
  66 // CHECK-NEXT:       // MIs[0] tmp
  67 // CHECK-NEXT:       GIM_RecordInsnIgnoreCopies, /*DefineMI*/1, /*MI*/0, /*OpIdx*/1, // MIs[1]
  68 // CHECK-NEXT:       GIM_CheckOpcode, /*MI*/1, GIMT_Encode2(TargetOpcode::G_FNEG),
  69 // CHECK-NEXT:       // MIs[1] src
  70 // CHECK-NEXT:       // No operand predicates
  71 // CHECK-NEXT:       GIM_CheckCanReplaceReg, /*OldInsnID*/0, /*OldOpIdx*/0, /*NewInsnId*/1, /*NewOpIdx*/1,
  72 // CHECK-NEXT:       GIM_CheckIsSafeToFold, /*NumInsns*/1,
  73 // CHECK-NEXT:       // Combiner Rule #0: ReplaceMatched
  74 // CHECK-NEXT:       GIR_ReplaceReg, /*OldInsnID*/0, /*OldOpIdx*/0, /*NewInsnId*/1, /*NewOpIdx*/1,
  75 // CHECK-NEXT:       GIR_EraseRootFromParent_Done,
  76 // CHECK-NEXT:     // Label 4: @[[L561]]
  77 // CHECK-NEXT:     GIM_Reject,
  78 // CHECK-NEXT:     // Label 2: @[[L562]]
  79 // CHECK-NEXT:     GIM_Reject,
  80 // CHECK-NEXT:     }; // Size: {{[0-9]+}} bytes
  81 // CHECK-NEXT:   return MatchTable0;
  82 // CHECK-NEXT: }