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IR: Remove unused microinstructions NegateLowWord and NegateHighWord

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This commit is contained in:
MerryMage 2017-01-05 20:16:39 +00:00
parent 70f4235ee9
commit 1efd3a764d
4 changed files with 0 additions and 32 deletions
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20
src/backend_x64/emit_x64.cpp
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@ -1275,26 +1275,6 @@ void EmitX64::EmitCountLeadingZeros(IR::Block&, IR::Inst* inst) {
}
}
void EmitX64::EmitNegateLowWord(IR::Block&, IR::Inst* inst) {
IR::Value a = inst->GetArg(0);
Xbyak::Reg32 result = reg_alloc.UseDefGpr(a, inst).cvt32();
code->ror(result, 16);
code->xor(result, 0xFFFF0000);
code->add(result, 0x00010000);
code->ror(result, 16);
}
void EmitX64::EmitNegateHighWord(IR::Block&, IR::Inst* inst) {
IR::Value a = inst->GetArg(0);
Xbyak::Reg32 result = reg_alloc.UseDefGpr(a, inst).cvt32();
code->xor(result, 0xFFFF0000);
code->add(result, 0x00010000);
}
void EmitX64::EmitSignedSaturatedAdd(IR::Block& block, IR::Inst* inst) {
auto overflow_inst = inst->GetAssociatedPseudoOperation(IR::Opcode::GetOverflowFromOp);

8
src/frontend/ir/ir_emitter.cpp
View file

@ -328,14 +328,6 @@ Value IREmitter::CountLeadingZeros(const Value& a) {
return Inst(Opcode::CountLeadingZeros, {a});
}
Value IREmitter::NegateLowWord(const Value& a) {
return Inst(Opcode::NegateLowWord, {a});
}
Value IREmitter::NegateHighWord(const Value& a) {
return Inst(Opcode::NegateHighWord, {a});
}
IREmitter::ResultAndOverflow IREmitter::SignedSaturatedAdd(const Value& a, const Value& b) {
auto result = Inst(Opcode::SignedSaturatedAdd, {a, b});
auto overflow = Inst(Opcode::GetOverflowFromOp, {result});

2
src/frontend/ir/ir_emitter.h
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@ -133,8 +133,6 @@ public:
Value ByteReverseHalf(const Value& a);
Value ByteReverseDual(const Value& a);
Value CountLeadingZeros(const Value& a);
Value NegateLowWord(const Value& a);
Value NegateHighWord(const Value& a);
ResultAndOverflow SignedSaturatedAdd(const Value& a, const Value& b);
ResultAndOverflow SignedSaturatedSub(const Value& a, const Value& b);

2
src/frontend/ir/opcodes.inc
View file

@ -73,8 +73,6 @@ OPCODE(ByteReverseWord, T::U32, T::U32
OPCODE(ByteReverseHalf, T::U16, T::U16 )
OPCODE(ByteReverseDual, T::U64, T::U64 )
OPCODE(CountLeadingZeros, T::U32, T::U32 )
OPCODE(NegateLowWord, T::U32, T::U32 )
OPCODE(NegateHighWord, T::U32, T::U32 )
// Saturated instructions
OPCODE(SignedSaturatedAdd, T::U32, T::U32, T::U32 )