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path: root/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
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Diffstat (limited to 'backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp')
-rw-r--r--backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp36
1 files changed, 6 insertions, 30 deletions
diff --git a/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp b/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
index 5d0be47..3c0ec35 100644
--- a/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
+++ b/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
@@ -154,11 +154,7 @@ foldConstantExtension(MachineInstr &Instruction, MachineFunction &Function, Gene
auto Added = Def->addOperand(MachineOperand::integerImmediate(std::move(*Extended)));
if (!Added)
return std::unexpected(Added.error());
- MachineBasicBlock *Parent = Instruction.parent();
- if (Parent == nullptr)
- return makeUnexpected(ErrorCode::VerificationError,
- "RISC-V constant extension is detached during folding");
- return Parent->removeInstruction(Instruction);
+ return Instruction.eraseFromParent();
}
auto SetOpcode = Instruction.setOpcode(opcode(GenericOpcode::G_CONSTANT));
@@ -175,11 +171,7 @@ foldConstantExtension(MachineInstr &Instruction, MachineFunction &Function, Gene
if (Function.registerInfo().useEmpty(SourceRegister)) {
MachineInstr *Def = const_cast<MachineInstr *>(SourceDef);
- MachineBasicBlock *Parent = Def->parent();
- if (Parent == nullptr)
- return makeUnexpected(ErrorCode::VerificationError,
- "RISC-V constant extension source definition is detached");
- auto Removed = Parent->removeInstruction(*Def);
+ auto Removed = Def->eraseFromParent();
if (!Removed)
return std::unexpected(Removed.error());
// Keep the source register record as a tombstone-free historical vreg until
@@ -903,11 +895,7 @@ Expected<void> RISCVLegalizerInfo::legalizeBRJT(MachineInstr &Instruction,
if (auto Built = BranchBuilder->build(); !Built)
return std::unexpected(Built.error());
- MachineBasicBlock *Block = Instruction.parent();
- if (Block == nullptr)
- return makeUnexpected(ErrorCode::InternalError,
- "RISC-V G_BRJT became detached during legalization");
- return Block->removeInstruction(Instruction);
+ return Instruction.eraseFromParent();
}
Expected<void> RISCVLegalizerInfo::legalizeVAStart(MachineInstr &Instruction,
@@ -984,11 +972,7 @@ Expected<void> RISCVLegalizerInfo::legalizeVAStart(MachineInstr &Instruction,
if (auto Built = StoreBuilder->build(); !Built)
return std::unexpected(Built.error());
- MachineBasicBlock *Block = Instruction.parent();
- if (Block == nullptr)
- return makeUnexpected(ErrorCode::InternalError,
- "RISC-V G_VASTART became detached during legalization");
- return Block->removeInstruction(Instruction);
+ return Instruction.eraseFromParent();
}
Expected<void> RISCVLegalizerInfo::legalizeCustom(LegalizerHelper &Helper,
@@ -1243,11 +1227,7 @@ Expected<void> RISCVLegalizerInfo::legalizeCustom(LegalizerHelper &Helper,
!Built) {
return std::unexpected(Built.error());
}
- MachineBasicBlock *Block = Instruction.parent();
- if (Block == nullptr)
- return makeUnexpected(ErrorCode::InternalError,
- "RISC-V G_IS_FPCLASS became detached during lowering");
- return Block->removeInstruction(Instruction);
+ return Instruction.eraseFromParent();
}
if (Instruction.opcode() == opcode(GenericOpcode::G_ANYEXT) ||
Instruction.opcode() == opcode(GenericOpcode::G_SEXT) ||
@@ -1388,11 +1368,7 @@ Expected<bool> RISCVLegalizerInfo::legalizeIntrinsic(LegalizerHelper &Helper,
if (auto Built = StoreBuilder->build(); !Built)
return std::unexpected(Built.error());
- MachineBasicBlock *Block = Instruction.parent();
- if (Block == nullptr)
- return makeUnexpected(ErrorCode::InternalError,
- "llvm.va_copy intrinsic became detached during lowering");
- if (auto Removed = Block->removeInstruction(Instruction); !Removed)
+ if (auto Removed = Instruction.eraseFromParent(); !Removed)
return std::unexpected(Removed.error());
return true;
}