llvm/test/TableGen/GlobalISelCombinerEmitter/match-table-imms.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 // emits a imm
  12 def InstTest0 : GICombineRule<
  13   (defs root:$a),
  14   (match (COPY $a, (i32 0))),
  15   (apply (COPY $a, 0))>;
  16
  17 // implicitly emits a G_CONSTANT
  18 def InstTest1 : GICombineRule<
  19   (defs root:$a),
  20   (match (G_ZEXT $a, 0)),
  21   (apply (COPY $a, (i32 0)))>;
  22
  23 // emits a CImm because G_CONSTANT is a special case.
  24 def CImmInstTest1 : GICombineRule<
  25   (defs root:$a),
  26   (match (G_CONSTANT $a, (i32 0))),
  27   (apply (G_CONSTANT $a, (i32 42)))>;
  28
  29 def MyCombiner: GICombiner<"GenMyCombiner", [
  30   InstTest0,
  31   InstTest1,
  32   CImmInstTest1
  33 ]>;
  34
  35 //      CHECK: const uint8_t *GenMyCombiner::getMatchTable() const {
  36 // CHECK-NEXT:   constexpr static uint8_t MatchTable0[] = {
  37 // CHECK-NEXT:     GIM_SwitchOpcode, /*MI*/0, /*[*/GIMT_Encode2(20), GIMT_Encode2({{[0-9]+}}), /*)*//*default:*//*Label 3*/ GIMT_Encode4([[L579:[0-9]+]]),
  38 // CHECK-NEXT:     /*TargetOpcode::COPY*//*Label 0*/ GIMT_Encode4([[L462:[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),
  39 // CHECK-NEXT:     /*TargetOpcode::G_CONSTANT*//*Label 1*/ GIMT_Encode4([[L493:[0-9]+]]), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0), GIMT_Encode4(0),
  40 // CHECK-NEXT:     /*TargetOpcode::G_ZEXT*//*Label 2*/ GIMT_Encode4({{[0-9]+}}),
  41 // CHECK-NEXT:     // Label 0: @[[L462]]
  42 // CHECK-NEXT:     GIM_Try, /*On fail goto*//*Label 4*/ GIMT_Encode4([[L492:[0-9]+]]), // Rule ID 0 //
  43 // CHECK-NEXT:       GIM_CheckSimplePredicate, GIMT_Encode2(GICXXPred_Simple_IsRule0Enabled),
  44 // CHECK-NEXT:       GIM_RootCheckType, /*Op*/1, /*Type*/GILLT_s32,
  45 // CHECK-NEXT:       // MIs[0] a
  46 // CHECK-NEXT:       // No operand predicates
  47 // CHECK-NEXT:       GIM_CheckConstantInt8, /*MI*/0, /*Op*/1, 0,
  48 // CHECK-NEXT:       // Combiner Rule #0: InstTest0
  49 // CHECK-NEXT:       GIR_BuildRootMI, /*Opcode*/GIMT_Encode2(TargetOpcode::COPY),
  50 // CHECK-NEXT:       GIR_RootToRootCopy, /*OpIdx*/0, // a
  51 // CHECK-NEXT:       GIR_AddImm8, /*InsnID*/0, /*Imm*/0,
  52 // CHECK-NEXT:       GIR_EraseRootFromParent_Done,
  53 // CHECK-NEXT:     // Label 4: @[[L492]]
  54 // CHECK-NEXT:     GIM_Reject,
  55 // CHECK-NEXT:     // Label 1: @[[L493]]
  56 // CHECK-NEXT:     GIM_Try, /*On fail goto*//*Label 5*/ GIMT_Encode4([[L538:[0-9]+]]), // Rule ID 2 //
  57 // CHECK-NEXT:       GIM_CheckSimplePredicate, GIMT_Encode2(GICXXPred_Simple_IsRule2Enabled),
  58 // CHECK-NEXT:       GIM_RootCheckType, /*Op*/1, /*Type*/GILLT_s32,
  59 // CHECK-NEXT:       // MIs[0] a
  60 // CHECK-NEXT:       // No operand predicates
  61 // CHECK-NEXT:       GIM_CheckLiteralInt, /*MI*/0, /*Op*/1, GIMT_Encode8(0),
  62 // CHECK-NEXT:       // Combiner Rule #2: CImmInstTest1
  63 // CHECK-NEXT:       GIR_BuildRootMI, /*Opcode*/GIMT_Encode2(TargetOpcode::G_CONSTANT),
  64 // CHECK-NEXT:       GIR_RootToRootCopy, /*OpIdx*/0, // a
  65 // CHECK-NEXT:       GIR_AddCImm, /*InsnID*/0, /*Type*/GILLT_s32, /*Imm*/GIMT_Encode8(42),
  66 // CHECK-NEXT:       GIR_EraseRootFromParent_Done,
  67 // CHECK-NEXT:     // Label 5: @[[L538]]
  68 // CHECK-NEXT:     GIM_Reject,
  69 // CHECK-NEXT:     // Label 2: @{{[0-9]+}}
  70 // CHECK-NEXT:     GIM_Try, /*On fail goto*//*Label 6*/ GIMT_Encode4([[L578:[0-9]+]]), // Rule ID 1 //
  71 // CHECK-NEXT:       GIM_CheckSimplePredicate, GIMT_Encode2(GICXXPred_Simple_IsRule1Enabled),
  72 // CHECK-NEXT:       // MIs[0] a
  73 // CHECK-NEXT:       // No operand predicates
  74 // CHECK-NEXT:       // MIs[0] Operand 1
  75 // CHECK-NEXT:       GIM_CheckConstantInt8, /*MI*/0, /*Op*/1, 0,
  76 // CHECK-NEXT:       GIR_MakeTempReg, /*TempRegID*/0, /*TypeID*/GILLT_s32,
  77 // CHECK-NEXT:       GIR_BuildConstant, /*TempRegID*/0, /*Val*/GIMT_Encode8(0),
  78 // CHECK-NEXT:       // Combiner Rule #1: InstTest1
  79 // CHECK-NEXT:       GIR_BuildRootMI, /*Opcode*/GIMT_Encode2(TargetOpcode::COPY),
  80 // CHECK-NEXT:       GIR_RootToRootCopy, /*OpIdx*/0, // a
  81 // CHECK-NEXT:       GIR_AddSimpleTempRegister, /*InsnID*/0, /*TempRegID*/0,
  82 // CHECK-NEXT:       GIR_EraseRootFromParent_Done,
  83 // CHECK-NEXT:     // Label 6: @[[L578]]
  84 // CHECK-NEXT:     GIM_Reject,
  85 // CHECK-NEXT:     // Label 3: @[[L579]]
  86 // CHECK-NEXT:     GIM_Reject,
  87 // CHECK-NEXT:     }; // Size: {{[0-9]+}} bytes
  88 // CHECK-NEXT:   return MatchTable0;
  89 // CHECK-NEXT: }