[RISCV] Use a switch in RISCVInstrInfo::verifyInstruction. NFC #170961
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The immediate only operands handled with a range check and a switch nested under the default case.
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@llvm/pr-subscribers-backend-risc-v Author: Craig Topper (topperc) ChangesThe immediate only operands handled with a range check and a switch nested under the default case. Full diff: https://github.com/llvm/llvm-project/pull/170961.diff 1 Files Affected:
diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
index 9fb7ac0573824..a3bacfbfe5214 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
@@ -2858,19 +2858,21 @@ bool RISCVInstrInfo::verifyInstruction(const MachineInstr &MI,
for (const auto &[Index, Operand] : enumerate(Desc.operands())) {
const MachineOperand &MO = MI.getOperand(Index);
unsigned OpType = Operand.OperandType;
- if (OpType >= RISCVOp::OPERAND_FIRST_RISCV_IMM &&
- OpType <= RISCVOp::OPERAND_LAST_RISCV_IMM) {
- if (!MO.isImm()) {
- ErrInfo = "Expected an immediate operand.";
- return false;
- }
- int64_t Imm = MO.getImm();
- bool Ok;
- switch (OpType) {
- default:
- llvm_unreachable("Unexpected operand type");
+ switch (OpType) {
+ default:
+ if (OpType >= RISCVOp::OPERAND_FIRST_RISCV_IMM &&
+ OpType <= RISCVOp::OPERAND_LAST_RISCV_IMM) {
+ if (!MO.isImm()) {
+ ErrInfo = "Expected an immediate operand.";
+ return false;
+ }
+ int64_t Imm = MO.getImm();
+ bool Ok;
+ switch (OpType) {
+ default:
+ llvm_unreachable("Unexpected operand type");
- // clang-format off
+ // clang-format off
#define CASE_OPERAND_UIMM(NUM) \
case RISCVOp::OPERAND_UIMM##NUM: \
Ok = isUInt<NUM>(Imm); \
@@ -2879,176 +2881,178 @@ bool RISCVInstrInfo::verifyInstruction(const MachineInstr &MI,
case RISCVOp::OPERAND_SIMM##NUM: \
Ok = isInt<NUM>(Imm); \
break;
- CASE_OPERAND_UIMM(1)
- CASE_OPERAND_UIMM(2)
- CASE_OPERAND_UIMM(3)
- CASE_OPERAND_UIMM(4)
- CASE_OPERAND_UIMM(5)
- CASE_OPERAND_UIMM(6)
- CASE_OPERAND_UIMM(7)
- CASE_OPERAND_UIMM(8)
- CASE_OPERAND_UIMM(9)
- CASE_OPERAND_UIMM(10)
- CASE_OPERAND_UIMM(12)
- CASE_OPERAND_UIMM(16)
- CASE_OPERAND_UIMM(32)
- CASE_OPERAND_UIMM(48)
- CASE_OPERAND_UIMM(64)
+ CASE_OPERAND_UIMM(1)
+ CASE_OPERAND_UIMM(2)
+ CASE_OPERAND_UIMM(3)
+ CASE_OPERAND_UIMM(4)
+ CASE_OPERAND_UIMM(5)
+ CASE_OPERAND_UIMM(6)
+ CASE_OPERAND_UIMM(7)
+ CASE_OPERAND_UIMM(8)
+ CASE_OPERAND_UIMM(9)
+ CASE_OPERAND_UIMM(10)
+ CASE_OPERAND_UIMM(12)
+ CASE_OPERAND_UIMM(16)
+ CASE_OPERAND_UIMM(32)
+ CASE_OPERAND_UIMM(48)
+ CASE_OPERAND_UIMM(64)
+ // clang-format on
+ case RISCVOp::OPERAND_UIMM2_LSB0:
+ Ok = isShiftedUInt<1, 1>(Imm);
+ break;
+ case RISCVOp::OPERAND_UIMM5_LSB0:
+ Ok = isShiftedUInt<4, 1>(Imm);
+ break;
+ case RISCVOp::OPERAND_UIMM5_NONZERO:
+ Ok = isUInt<5>(Imm) && (Imm != 0);
+ break;
+ case RISCVOp::OPERAND_UIMM5_GT3:
+ Ok = isUInt<5>(Imm) && (Imm > 3);
+ break;
+ case RISCVOp::OPERAND_UIMM5_PLUS1:
+ Ok = Imm >= 1 && Imm <= 32;
+ break;
+ case RISCVOp::OPERAND_UIMM6_LSB0:
+ Ok = isShiftedUInt<5, 1>(Imm);
+ break;
+ case RISCVOp::OPERAND_UIMM7_LSB00:
+ Ok = isShiftedUInt<5, 2>(Imm);
+ break;
+ case RISCVOp::OPERAND_UIMM7_LSB000:
+ Ok = isShiftedUInt<4, 3>(Imm);
+ break;
+ case RISCVOp::OPERAND_UIMM8_LSB00:
+ Ok = isShiftedUInt<6, 2>(Imm);
+ break;
+ case RISCVOp::OPERAND_UIMM8_LSB000:
+ Ok = isShiftedUInt<5, 3>(Imm);
+ break;
+ case RISCVOp::OPERAND_UIMM8_GE32:
+ Ok = isUInt<8>(Imm) && Imm >= 32;
+ break;
+ case RISCVOp::OPERAND_UIMM9_LSB000:
+ Ok = isShiftedUInt<6, 3>(Imm);
+ break;
+ case RISCVOp::OPERAND_SIMM8_UNSIGNED:
+ Ok = isInt<8>(Imm);
+ break;
+ case RISCVOp::OPERAND_SIMM10_LSB0000_NONZERO:
+ Ok = isShiftedInt<6, 4>(Imm) && (Imm != 0);
+ break;
+ case RISCVOp::OPERAND_UIMM10_LSB00_NONZERO:
+ Ok = isShiftedUInt<8, 2>(Imm) && (Imm != 0);
+ break;
+ case RISCVOp::OPERAND_UIMM16_NONZERO:
+ Ok = isUInt<16>(Imm) && (Imm != 0);
+ break;
+ case RISCVOp::OPERAND_THREE:
+ Ok = Imm == 3;
+ break;
+ case RISCVOp::OPERAND_FOUR:
+ Ok = Imm == 4;
+ break;
+ case RISCVOp::OPERAND_IMM5_ZIBI:
+ Ok = (isUInt<5>(Imm) && Imm != 0) || Imm == -1;
+ break;
+ // clang-format off
+ CASE_OPERAND_SIMM(5)
+ CASE_OPERAND_SIMM(6)
+ CASE_OPERAND_SIMM(10)
+ CASE_OPERAND_SIMM(11)
+ CASE_OPERAND_SIMM(26)
// clang-format on
- case RISCVOp::OPERAND_UIMM2_LSB0:
- Ok = isShiftedUInt<1, 1>(Imm);
- break;
- case RISCVOp::OPERAND_UIMM5_LSB0:
- Ok = isShiftedUInt<4, 1>(Imm);
- break;
- case RISCVOp::OPERAND_UIMM5_NONZERO:
- Ok = isUInt<5>(Imm) && (Imm != 0);
- break;
- case RISCVOp::OPERAND_UIMM5_GT3:
- Ok = isUInt<5>(Imm) && (Imm > 3);
- break;
- case RISCVOp::OPERAND_UIMM5_PLUS1:
- Ok = Imm >= 1 && Imm <= 32;
- break;
- case RISCVOp::OPERAND_UIMM6_LSB0:
- Ok = isShiftedUInt<5, 1>(Imm);
- break;
- case RISCVOp::OPERAND_UIMM7_LSB00:
- Ok = isShiftedUInt<5, 2>(Imm);
- break;
- case RISCVOp::OPERAND_UIMM7_LSB000:
- Ok = isShiftedUInt<4, 3>(Imm);
- break;
- case RISCVOp::OPERAND_UIMM8_LSB00:
- Ok = isShiftedUInt<6, 2>(Imm);
- break;
- case RISCVOp::OPERAND_UIMM8_LSB000:
- Ok = isShiftedUInt<5, 3>(Imm);
- break;
- case RISCVOp::OPERAND_UIMM8_GE32:
- Ok = isUInt<8>(Imm) && Imm >= 32;
- break;
- case RISCVOp::OPERAND_UIMM9_LSB000:
- Ok = isShiftedUInt<6, 3>(Imm);
- break;
- case RISCVOp::OPERAND_SIMM8_UNSIGNED:
- Ok = isInt<8>(Imm);
- break;
- case RISCVOp::OPERAND_SIMM10_LSB0000_NONZERO:
- Ok = isShiftedInt<6, 4>(Imm) && (Imm != 0);
- break;
- case RISCVOp::OPERAND_UIMM10_LSB00_NONZERO:
- Ok = isShiftedUInt<8, 2>(Imm) && (Imm != 0);
- break;
- case RISCVOp::OPERAND_UIMM16_NONZERO:
- Ok = isUInt<16>(Imm) && (Imm != 0);
- break;
- case RISCVOp::OPERAND_THREE:
- Ok = Imm == 3;
- break;
- case RISCVOp::OPERAND_FOUR:
- Ok = Imm == 4;
- break;
- case RISCVOp::OPERAND_IMM5_ZIBI:
- Ok = (isUInt<5>(Imm) && Imm != 0) || Imm == -1;
- break;
- // clang-format off
- CASE_OPERAND_SIMM(5)
- CASE_OPERAND_SIMM(6)
- CASE_OPERAND_SIMM(10)
- CASE_OPERAND_SIMM(11)
- CASE_OPERAND_SIMM(26)
- // clang-format on
- case RISCVOp::OPERAND_SIMM5_PLUS1:
- Ok = Imm >= -15 && Imm <= 16;
- break;
- case RISCVOp::OPERAND_SIMM5_NONZERO:
- Ok = isInt<5>(Imm) && (Imm != 0);
- break;
- case RISCVOp::OPERAND_SIMM6_NONZERO:
- Ok = Imm != 0 && isInt<6>(Imm);
- break;
- case RISCVOp::OPERAND_VTYPEI10:
- Ok = isUInt<10>(Imm);
- break;
- case RISCVOp::OPERAND_VTYPEI11:
- Ok = isUInt<11>(Imm);
- break;
- case RISCVOp::OPERAND_SIMM12_LSB00000:
- Ok = isShiftedInt<7, 5>(Imm);
- break;
- case RISCVOp::OPERAND_SIMM16_NONZERO:
- Ok = isInt<16>(Imm) && (Imm != 0);
- break;
- case RISCVOp::OPERAND_SIMM20_LI:
- Ok = isInt<20>(Imm);
- break;
- case RISCVOp::OPERAND_UIMMLOG2XLEN:
- Ok = STI.is64Bit() ? isUInt<6>(Imm) : isUInt<5>(Imm);
- break;
- case RISCVOp::OPERAND_UIMMLOG2XLEN_NONZERO:
- Ok = STI.is64Bit() ? isUInt<6>(Imm) : isUInt<5>(Imm);
- Ok = Ok && Imm != 0;
- break;
- case RISCVOp::OPERAND_CLUI_IMM:
- Ok = (isUInt<5>(Imm) && Imm != 0) || (Imm >= 0xfffe0 && Imm <= 0xfffff);
- break;
- case RISCVOp::OPERAND_RVKRNUM:
- Ok = Imm >= 0 && Imm <= 10;
- break;
- case RISCVOp::OPERAND_RVKRNUM_0_7:
- Ok = Imm >= 0 && Imm <= 7;
- break;
- case RISCVOp::OPERAND_RVKRNUM_1_10:
- Ok = Imm >= 1 && Imm <= 10;
- break;
- case RISCVOp::OPERAND_RVKRNUM_2_14:
- Ok = Imm >= 2 && Imm <= 14;
- break;
- case RISCVOp::OPERAND_RLIST:
- Ok = Imm >= RISCVZC::RA && Imm <= RISCVZC::RA_S0_S11;
- break;
- case RISCVOp::OPERAND_RLIST_S0:
- Ok = Imm >= RISCVZC::RA_S0 && Imm <= RISCVZC::RA_S0_S11;
- break;
- case RISCVOp::OPERAND_STACKADJ:
- Ok = Imm >= 0 && Imm <= 48 && Imm % 16 == 0;
- break;
- case RISCVOp::OPERAND_FRMARG:
- Ok = RISCVFPRndMode::isValidRoundingMode(Imm);
- break;
- case RISCVOp::OPERAND_RTZARG:
- Ok = Imm == RISCVFPRndMode::RTZ;
- break;
- case RISCVOp::OPERAND_COND_CODE:
- Ok = Imm >= 0 && Imm < RISCVCC::COND_INVALID;
- break;
- case RISCVOp::OPERAND_VEC_POLICY:
- Ok = (Imm & (RISCVVType::TAIL_AGNOSTIC | RISCVVType::MASK_AGNOSTIC)) ==
- Imm;
- break;
- case RISCVOp::OPERAND_SEW:
- Ok = (isUInt<5>(Imm) && RISCVVType::isValidSEW(1 << Imm));
- break;
- case RISCVOp::OPERAND_SEW_MASK:
- Ok = Imm == 0;
- break;
- case RISCVOp::OPERAND_VEC_RM:
- assert(RISCVII::hasRoundModeOp(Desc.TSFlags));
- if (RISCVII::usesVXRM(Desc.TSFlags))
- Ok = isUInt<2>(Imm);
- else
+ case RISCVOp::OPERAND_SIMM5_PLUS1:
+ Ok = Imm >= -15 && Imm <= 16;
+ break;
+ case RISCVOp::OPERAND_SIMM5_NONZERO:
+ Ok = isInt<5>(Imm) && (Imm != 0);
+ break;
+ case RISCVOp::OPERAND_SIMM6_NONZERO:
+ Ok = Imm != 0 && isInt<6>(Imm);
+ break;
+ case RISCVOp::OPERAND_VTYPEI10:
+ Ok = isUInt<10>(Imm);
+ break;
+ case RISCVOp::OPERAND_VTYPEI11:
+ Ok = isUInt<11>(Imm);
+ break;
+ case RISCVOp::OPERAND_SIMM12_LSB00000:
+ Ok = isShiftedInt<7, 5>(Imm);
+ break;
+ case RISCVOp::OPERAND_SIMM16_NONZERO:
+ Ok = isInt<16>(Imm) && (Imm != 0);
+ break;
+ case RISCVOp::OPERAND_SIMM20_LI:
+ Ok = isInt<20>(Imm);
+ break;
+ case RISCVOp::OPERAND_UIMMLOG2XLEN:
+ Ok = STI.is64Bit() ? isUInt<6>(Imm) : isUInt<5>(Imm);
+ break;
+ case RISCVOp::OPERAND_UIMMLOG2XLEN_NONZERO:
+ Ok = STI.is64Bit() ? isUInt<6>(Imm) : isUInt<5>(Imm);
+ Ok = Ok && Imm != 0;
+ break;
+ case RISCVOp::OPERAND_CLUI_IMM:
+ Ok = (isUInt<5>(Imm) && Imm != 0) || (Imm >= 0xfffe0 && Imm <= 0xfffff);
+ break;
+ case RISCVOp::OPERAND_RVKRNUM:
+ Ok = Imm >= 0 && Imm <= 10;
+ break;
+ case RISCVOp::OPERAND_RVKRNUM_0_7:
+ Ok = Imm >= 0 && Imm <= 7;
+ break;
+ case RISCVOp::OPERAND_RVKRNUM_1_10:
+ Ok = Imm >= 1 && Imm <= 10;
+ break;
+ case RISCVOp::OPERAND_RVKRNUM_2_14:
+ Ok = Imm >= 2 && Imm <= 14;
+ break;
+ case RISCVOp::OPERAND_RLIST:
+ Ok = Imm >= RISCVZC::RA && Imm <= RISCVZC::RA_S0_S11;
+ break;
+ case RISCVOp::OPERAND_RLIST_S0:
+ Ok = Imm >= RISCVZC::RA_S0 && Imm <= RISCVZC::RA_S0_S11;
+ break;
+ case RISCVOp::OPERAND_STACKADJ:
+ Ok = Imm >= 0 && Imm <= 48 && Imm % 16 == 0;
+ break;
+ case RISCVOp::OPERAND_FRMARG:
Ok = RISCVFPRndMode::isValidRoundingMode(Imm);
- break;
- case RISCVOp::OPERAND_XSFMM_VTYPE:
- Ok = RISCVVType::isValidXSfmmVType(Imm);
- break;
- }
- if (!Ok) {
- ErrInfo = "Invalid immediate";
- return false;
+ break;
+ case RISCVOp::OPERAND_RTZARG:
+ Ok = Imm == RISCVFPRndMode::RTZ;
+ break;
+ case RISCVOp::OPERAND_COND_CODE:
+ Ok = Imm >= 0 && Imm < RISCVCC::COND_INVALID;
+ break;
+ case RISCVOp::OPERAND_VEC_POLICY:
+ Ok = (Imm & (RISCVVType::TAIL_AGNOSTIC | RISCVVType::MASK_AGNOSTIC)) ==
+ Imm;
+ break;
+ case RISCVOp::OPERAND_SEW:
+ Ok = (isUInt<5>(Imm) && RISCVVType::isValidSEW(1 << Imm));
+ break;
+ case RISCVOp::OPERAND_SEW_MASK:
+ Ok = Imm == 0;
+ break;
+ case RISCVOp::OPERAND_VEC_RM:
+ assert(RISCVII::hasRoundModeOp(Desc.TSFlags));
+ if (RISCVII::usesVXRM(Desc.TSFlags))
+ Ok = isUInt<2>(Imm);
+ else
+ Ok = RISCVFPRndMode::isValidRoundingMode(Imm);
+ break;
+ case RISCVOp::OPERAND_XSFMM_VTYPE:
+ Ok = RISCVVType::isValidXSfmmVType(Imm);
+ break;
+ }
+ if (!Ok) {
+ ErrInfo = "Invalid immediate";
+ return false;
+ }
}
- } else if (OpType == RISCVOp::OPERAND_SIMM12_LO) {
+ break;
+ case RISCVOp::OPERAND_SIMM12_LO:
// TODO: We could be stricter about what non-register operands are
// allowed.
if (MO.isReg()) {
@@ -3059,8 +3063,9 @@ bool RISCVInstrInfo::verifyInstruction(const MachineInstr &MI,
ErrInfo = "Invalid immediate";
return false;
}
- } else if (OpType == RISCVOp::OPERAND_UIMM20_LUI ||
- OpType == RISCVOp::OPERAND_UIMM20_AUIPC) {
+ break;
+ case RISCVOp::OPERAND_UIMM20_LUI:
+ case RISCVOp::OPERAND_UIMM20_AUIPC:
// TODO: We could be stricter about what non-register operands are
// allowed.
if (MO.isReg()) {
@@ -3071,7 +3076,8 @@ bool RISCVInstrInfo::verifyInstruction(const MachineInstr &MI,
ErrInfo = "Invalid immediate";
return false;
}
- } else if (OpType == RISCVOp::OPERAND_BARE_SIMM32) {
+ break;
+ case RISCVOp::OPERAND_BARE_SIMM32:
// TODO: We could be stricter about what non-register operands are
// allowed.
if (MO.isReg()) {
@@ -3082,7 +3088,8 @@ bool RISCVInstrInfo::verifyInstruction(const MachineInstr &MI,
ErrInfo = "Invalid immediate";
return false;
}
- } else if (OpType == RISCVOp::OPERAND_AVL) {
+ break;
+ case RISCVOp::OPERAND_AVL:
if (MO.isImm()) {
int64_t Imm = MO.getImm();
// VLMAX is represented as -1.
@@ -3094,6 +3101,7 @@ bool RISCVInstrInfo::verifyInstruction(const MachineInstr &MI,
ErrInfo = "Expected a register or immediate operand.";
return false;
}
+ break;
}
}
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You can test this locally with the following command:git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Target/RISCV/RISCVInstrInfo.cpp --diff_from_common_commit
View the diff from clang-format here.diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
index a3bacfbfe..146ec44fa 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
@@ -2993,7 +2993,8 @@ bool RISCVInstrInfo::verifyInstruction(const MachineInstr &MI,
Ok = Ok && Imm != 0;
break;
case RISCVOp::OPERAND_CLUI_IMM:
- Ok = (isUInt<5>(Imm) && Imm != 0) || (Imm >= 0xfffe0 && Imm <= 0xfffff);
+ Ok = (isUInt<5>(Imm) && Imm != 0) ||
+ (Imm >= 0xfffe0 && Imm <= 0xfffff);
break;
case RISCVOp::OPERAND_RVKRNUM:
Ok = Imm >= 0 && Imm <= 10;
@@ -3026,8 +3027,8 @@ bool RISCVInstrInfo::verifyInstruction(const MachineInstr &MI,
Ok = Imm >= 0 && Imm < RISCVCC::COND_INVALID;
break;
case RISCVOp::OPERAND_VEC_POLICY:
- Ok = (Imm & (RISCVVType::TAIL_AGNOSTIC | RISCVVType::MASK_AGNOSTIC)) ==
- Imm;
+ Ok = (Imm &
+ (RISCVVType::TAIL_AGNOSTIC | RISCVVType::MASK_AGNOSTIC)) == Imm;
break;
case RISCVOp::OPERAND_SEW:
Ok = (isUInt<5>(Imm) && RISCVVType::isValidSEW(1 << Imm));
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The immediate only operands handled with a range check and a switch nested under the default case.