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IR: Add ReplicateBit microinstruction

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This commit is contained in:
MerryMage
2020-04-20 17:56:16 +01:00
parent 8f2dcd3e21
commit f59b9fb020
5 changed files with 46 additions and 7 deletions
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10
src/frontend/ir/ir_emitter.cpp
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@@ -469,6 +469,16 @@ U32U64 IREmitter::ExtractRegister(const U32U64& a, const U32U64& b, const U8& ls
return Inst<U64>(Opcode::ExtractRegister64, a, b, lsb);
}
U32U64 IREmitter::ReplicateBit(const U32U64& a, u8 bit) {
if (a.GetType() == IR::Type::U32) {
ASSERT(bit < 32);
return Inst<U32>(Opcode::ReplicateBit32, a, Imm8(bit));
}
ASSERT(bit < 64);
return Inst<U64>(Opcode::ReplicateBit64, a, Imm8(bit));
}
U32U64 IREmitter::MaxSigned(const U32U64& a, const U32U64& b) {
if (a.GetType() == IR::Type::U32) {
return Inst<U32>(Opcode::MaxSigned32, a, b);

1
src/frontend/ir/ir_emitter.h
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@@ -152,6 +152,7 @@ public:
U64 ByteReverseDual(const U64& a);
U32U64 CountLeadingZeros(const U32U64& a);
U32U64 ExtractRegister(const U32U64& a, const U32U64& b, const U8& lsb);
U32U64 ReplicateBit(const U32U64& a, u8 bit);
U32U64 MaxSigned(const U32U64& a, const U32U64& b);
U32U64 MaxUnsigned(const U32U64& a, const U32U64& b);
U32U64 MinSigned(const U32U64& a, const U32U64& b);

2
src/frontend/ir/opcodes.inc
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@@ -159,6 +159,8 @@ OPCODE(CountLeadingZeros32, U32, U32
OPCODE(CountLeadingZeros64, U64, U64 )
OPCODE(ExtractRegister32, U32, U32, U32, U8 )
OPCODE(ExtractRegister64, U64, U64, U64, U8 )
OPCODE(ReplicateBit32, U32, U32, U8 )
OPCODE(ReplicateBit64, U64, U64, U8 )
OPCODE(MaxSigned32, U32, U32, U32 )
OPCODE(MaxSigned64, U64, U64, U64 )
OPCODE(MaxUnsigned32, U32, U32, U32 )