llvm/test/TableGen/GlobalISelCombinerEmitter/builtins/match-table-eraseroot.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 Test0 : GICombineRule<
  12   (defs root:$mi),
  13   (match (G_STORE $a, $b):$mi),
  14   (apply (GIEraseRoot))>;
  15
  16 def MyCombiner: GICombiner<"GenMyCombiner", [
  17   Test0,
  18 ]>;
  19
  20 // CHECK:      const int64_t *GenMyCombiner::getMatchTable() const {
  21 // CHECK-NEXT:   constexpr static int64_t MatchTable0[] = {
  22 // CHECK-NEXT:     GIM_Try, /*On fail goto*//*Label 0*/ 10, // Rule ID 0 //
  23 // CHECK-NEXT:       GIM_CheckSimplePredicate, GICXXPred_Simple_IsRule0Enabled,
  24 // CHECK-NEXT:       GIM_CheckOpcode, /*MI*/0, TargetOpcode::G_STORE,
  25 // CHECK-NEXT:       // MIs[0] a
  26 // CHECK-NEXT:       // No operand predicates
  27 // CHECK-NEXT:       // MIs[0] b
  28 // CHECK-NEXT:       // No operand predicates
  29 // CHECK-NEXT:       // Combiner Rule #0: Test0
  30 // CHECK-NEXT:       GIR_EraseFromParent, /*InsnID*/0,
  31 // CHECK-NEXT:       GIR_Done,
  32 // CHECK-NEXT:     // Label 0: @10
  33 // CHECK-NEXT:     GIM_Reject,
  34 // CHECK-NEXT:     };
  35 // CHECK-NEXT:   return MatchTable0;
  36 // CHECK-NEXT: }