llvm/test/TableGen/GlobalISelCombinerEmitter/match-table-miflags.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 MIFlagsTest : GICombineRule<
  12   (defs root:$dst),
  13   (match (G_SEXT $dst, $tmp), (G_ZEXT $tmp, $src, (MIFlags FmReassoc, FmNsz, (not FmNoNans, FmArcp))):$mi),
  14   (apply (G_MUL $dst, $src, $src, (MIFlags $mi, FmReassoc, (not FmNsz, FmArcp))))>;
  15
  16 def MyCombiner: GICombiner<"GenMyCombiner", [MIFlagsTest]>;
  17
  18 // CHECK:      const uint8_t *GenMyCombiner::getMatchTable() const {
  19 // CHECK-NEXT:   constexpr static uint8_t MatchTable0[] = {
  20 // CHECK-NEXT:     GIM_Try, /*On fail goto*//*Label 0*/ GIMT_Encode4(63), // Rule ID 0 //
  21 // CHECK-NEXT:       GIM_CheckSimplePredicate, GIMT_Encode2(GICXXPred_Simple_IsRule0Enabled),
  22 // CHECK-NEXT:       GIM_CheckOpcode, /*MI*/0, GIMT_Encode2(TargetOpcode::G_SEXT),
  23 // CHECK-NEXT:       // MIs[0] dst
  24 // CHECK-NEXT:       // No operand predicates
  25 // CHECK-NEXT:       // MIs[0] tmp
  26 // CHECK-NEXT:       GIM_RecordInsnIgnoreCopies, /*DefineMI*/1, /*MI*/0, /*OpIdx*/1, // MIs[1]
  27 // CHECK-NEXT:       GIM_CheckOpcode, /*MI*/1, GIMT_Encode2(TargetOpcode::G_ZEXT),
  28 // CHECK-NEXT:       GIM_MIFlags, /*MI*/1, GIMT_Encode4(MachineInstr::FmNsz | MachineInstr::FmReassoc),
  29 // CHECK-NEXT:       GIM_MIFlagsNot, /*MI*/1, GIMT_Encode4(MachineInstr::FmArcp | MachineInstr::FmNoNans),
  30 // CHECK-NEXT:       // MIs[1] src
  31 // CHECK-NEXT:       // No operand predicates
  32 // CHECK-NEXT:       GIM_CheckIsSafeToFold, /*NumInsns*/1,
  33 // CHECK-NEXT:       // Combiner Rule #0: MIFlagsTest
  34 // CHECK-NEXT:       GIR_BuildRootMI, /*Opcode*/GIMT_Encode2(TargetOpcode::G_MUL),
  35 // CHECK-NEXT:       GIR_RootToRootCopy, /*OpIdx*/0, // dst
  36 // CHECK-NEXT:       GIR_Copy, /*NewInsnID*/0, /*OldInsnID*/1, /*OpIdx*/1, // src
  37 // CHECK-NEXT:       GIR_Copy, /*NewInsnID*/0, /*OldInsnID*/1, /*OpIdx*/1, // src
  38 // CHECK-NEXT:       GIR_CopyMIFlags, /*InsnID*/0, /*OldInsnID*/1,
  39 // CHECK-NEXT:       GIR_SetMIFlags, /*InsnID*/0, GIMT_Encode4(MachineInstr::FmReassoc),
  40 // CHECK-NEXT:       GIR_UnsetMIFlags, /*InsnID*/0, GIMT_Encode4(MachineInstr::FmNsz | MachineInstr::FmArcp),
  41 // CHECK-NEXT:       GIR_EraseRootFromParent_Done,
  42 // CHECK-NEXT:     // Label 0: @63
  43 // CHECK-NEXT:     GIM_Reject,
  44 // CHECK-NEXT:     };
  45 // CHECK-NEXT:   return MatchTable0;
  46 // CHECK-NEXT: }