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llvm-mirror/test/TableGen/GlobalISelEmitterRegSequence.td
Matt Arsenault de32382a70 TableGen/GlobalISel: Emit enum names for reg class ID instead of value
This was emitting the raw value for the reg class ID with a comment
for the actual class name. Switch to emitting the qualified enum name
instead, which obviates the need for the comment and also helps keep
the lit tests on the emitter output more stable.
2020-07-13 14:02:08 -04:00

82 lines
4.4 KiB
TableGen

// RUN: llvm-tblgen %s -gen-global-isel -optimize-match-table=false -I %p/../../include -I %p/Common -o - | FileCheck %s
include "llvm/Target/Target.td"
include "GlobalISelEmitterCommon.td"
// Boilerplate code for setting up some registers with subregs.
class MyReg<string n, list<Register> subregs = []>
: Register<n> {
let SubRegs = subregs;
}
class MyClass<int size, list<ValueType> types, dag registers>
: RegisterClass<"Test", types, size, registers> {
let Size = size;
}
def sub0 : SubRegIndex<16>;
def sub1 : SubRegIndex<16, 16>;
def S0 : MyReg<"s0">;
def S1 : MyReg<"s1">;
def SRegs : MyClass<16, [i16], (sequence "S%u", 0, 1)>;
let SubRegIndices = [sub0, sub1] in {
def D0 : MyReg<"d0", [S0, S1]>;
}
def DRegs : MyClass<32, [i32], (sequence "D%u", 0, 0)>;
def SOP : RegisterOperand<SRegs>;
def DOP : RegisterOperand<DRegs>;
def SOME_INSN : I<(outs DRegs:$dst), (ins DOP:$src), []>;
def SUBSOME_INSN : I<(outs SRegs:$dst), (ins SOP:$src), []>;
// CHECK: GIM_CheckNumOperands, /*MI*/0, /*Expected*/2,
// CHECK-NEXT: GIM_CheckOpcode, /*MI*/0, TargetOpcode::G_SEXT,
// CHECK-NEXT: // MIs[0] dst
// CHECK-NEXT: GIM_CheckType, /*MI*/0, /*Op*/0, /*Type*/GILLT_s32,
// CHECK-NEXT: GIM_CheckRegBankForClass, /*MI*/0, /*Op*/0, /*RC*/Test::DRegsRegClassID,
// CHECK-NEXT: // MIs[0] src
// CHECK-NEXT: GIM_CheckType, /*MI*/0, /*Op*/1, /*Type*/GILLT_s16,
// CHECK-NEXT: GIM_CheckRegBankForClass, /*MI*/0, /*Op*/1, /*RC*/Test::SRegsRegClassID,
// CHECK-NEXT: // (sext:{ *:[i32] } SOP:{ *:[i16] }:$src) => (REG_SEQUENCE:{ *:[i32] } DRegs:{ *:[i32] }, (SUBSOME_INSN:{ *:[i16] } SOP:{ *:[i16] }:$src), sub0:{ *:[i32] }, (SUBSOME_INSN:{ *:[i16] } SOP:{ *:[i16] }:$src), sub1:{ *:[i32] })
// CHECK-NEXT: GIR_MakeTempReg, /*TempRegID*/0, /*TypeID*/GILLT_s16,
// CHECK-NEXT: GIR_MakeTempReg, /*TempRegID*/1, /*TypeID*/GILLT_s16,
// CHECK-NEXT: GIR_BuildMI, /*InsnID*/2, /*Opcode*/MyTarget::SUBSOME_INSN,
// CHECK-NEXT: GIR_AddTempRegister, /*InsnID*/2, /*TempRegID*/1, /*TempRegFlags*/RegState::Define,
// CHECK-NEXT: GIR_Copy, /*NewInsnID*/2, /*OldInsnID*/0, /*OpIdx*/1, // src
// CHECK-NEXT: GIR_ConstrainSelectedInstOperands, /*InsnID*/2,
// CHECK-NEXT: GIR_BuildMI, /*InsnID*/1, /*Opcode*/MyTarget::SUBSOME_INSN,
// CHECK-NEXT: GIR_AddTempRegister, /*InsnID*/1, /*TempRegID*/0, /*TempRegFlags*/RegState::Define,
// CHECK-NEXT: GIR_Copy, /*NewInsnID*/1, /*OldInsnID*/0, /*OpIdx*/1, // src
// CHECK-NEXT: GIR_ConstrainSelectedInstOperands, /*InsnID*/1,
// CHECK-NEXT: GIR_BuildMI, /*InsnID*/0, /*Opcode*/TargetOpcode::REG_SEQUENCE,
// CHECK-NEXT: GIR_Copy, /*NewInsnID*/0, /*OldInsnID*/0, /*OpIdx*/0, // dst
// CHECK-NEXT: GIR_AddTempRegister, /*InsnID*/0, /*TempRegID*/0, /*TempRegFlags*/0,
// CHECK-NEXT: GIR_AddImm, /*InsnID*/0, /*SubRegIndex*/1,
// CHECK-NEXT: GIR_AddTempRegister, /*InsnID*/0, /*TempRegID*/1, /*TempRegFlags*/0,
// CHECK-NEXT: GIR_AddImm, /*InsnID*/0, /*SubRegIndex*/2,
// CHECK-NEXT: GIR_EraseFromParent, /*InsnID*/0,
// CHECK-NEXT: GIR_ConstrainOperandRC, /*InsnID*/0, /*Op*/0, Test::DRegsRegClassID,
// CHECK-NEXT: GIR_ConstrainOperandRC, /*InsnID*/0, /*Op*/1, Test::SRegsRegClassID,
// CHECK-NEXT: GIR_ConstrainOperandRC, /*InsnID*/0, /*Op*/3, Test::SRegsRegClassID,
def : Pat<(i32 (sext SOP:$src)),
(REG_SEQUENCE DRegs, (SUBSOME_INSN SOP:$src), sub0,
(SUBSOME_INSN SOP:$src), sub1)>;
// CHECK: GIM_CheckOpcode, /*MI*/0, TargetOpcode::G_ZEXT,
// CHECK: GIR_BuildMI, /*InsnID*/1, /*Opcode*/TargetOpcode::REG_SEQUENCE,
// CHECK-NEXT: GIR_AddTempRegister, /*InsnID*/1, /*TempRegID*/0, /*TempRegFlags*/RegState::Define,
// CHECK-NEXT: GIR_AddTempRegister, /*InsnID*/1, /*TempRegID*/1, /*TempRegFlags*/0,
// CHECK-NEXT: GIR_AddImm, /*InsnID*/1, /*SubRegIndex*/1,
// CHECK-NEXT: GIR_AddTempRegister, /*InsnID*/1, /*TempRegID*/2, /*TempRegFlags*/0,
// CHECK-NEXT: GIR_AddImm, /*InsnID*/1, /*SubRegIndex*/2,
// CHECK-NEXT: GIR_ConstrainOperandRC, /*InsnID*/1, /*Op*/0, Test::DRegsRegClassID,
// CHECK-NEXT: GIR_ConstrainOperandRC, /*InsnID*/1, /*Op*/1, Test::SRegsRegClassID,
// CHECK-NEXT: GIR_ConstrainOperandRC, /*InsnID*/1, /*Op*/3, Test::SRegsRegClassID,
// CHECK-NEXT: GIR_BuildMI, /*InsnID*/0, /*Opcode*/MyTarget::SOME_INSN,
// Make sure operands are constrained when REG_SEQUENCE isn't the root instruction.
def : Pat<(i32 (zext SOP:$src)),
(SOME_INSN (REG_SEQUENCE DRegs, (SUBSOME_INSN SOP:$src), sub0,
(SUBSOME_INSN SOP:$src), sub1))>;