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IR: FPCompare{32,64} now return NZCV flags instead of implicitly setting them

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This commit is contained in:
MerryMage 2018-02-05 12:16:01 +00:00
parent 2ee39d6b36
commit aac5af50e2
10 changed files with 51 additions and 26 deletions
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6
src/frontend/ir/ir_emitter.cpp
View file

@ -907,13 +907,13 @@ U32U64 IREmitter::FPAdd(const U32U64& a, const U32U64& b, bool fpscr_controlled)
}
}
void IREmitter::FPCompare(const U32U64& a, const U32U64& b, bool exc_on_qnan, bool fpscr_controlled) {
NZCV IREmitter::FPCompare(const U32U64& a, const U32U64& b, bool exc_on_qnan, bool fpscr_controlled) {
ASSERT(fpscr_controlled);
ASSERT(a.GetType() == b.GetType());
if (a.GetType() == Type::U32) {
Inst(Opcode::FPCompare32, a, b, Imm1(exc_on_qnan));
return Inst<NZCV>(Opcode::FPCompare32, a, b, Imm1(exc_on_qnan));
} else {
Inst(Opcode::FPCompare64, a, b, Imm1(exc_on_qnan));
return Inst<NZCV>(Opcode::FPCompare64, a, b, Imm1(exc_on_qnan));
}
}

2
src/frontend/ir/ir_emitter.h
View file

@ -236,7 +236,7 @@ public:
U32U64 FPAbs(const U32U64& a);
U32U64 FPAdd(const U32U64& a, const U32U64& b, bool fpscr_controlled);
void FPCompare(const U32U64& a, const U32U64& b, bool exc_on_qnan, bool fpscr_controlled);
NZCV FPCompare(const U32U64& a, const U32U64& b, bool exc_on_qnan, bool fpscr_controlled);
U32U64 FPDiv(const U32U64& a, const U32U64& b, bool fpscr_controlled);
U32U64 FPMul(const U32U64& a, const U32U64& b, bool fpscr_controlled);
U32U64 FPNeg(const U32U64& a);

6
src/frontend/ir/opcodes.inc
View file

@ -33,7 +33,7 @@ A32OPC(ExceptionRaised, T::Void, T::U32, T::U64
A32OPC(GetFpscr, T::U32, )
A32OPC(SetFpscr, T::Void, T::U32, )
A32OPC(GetFpscrNZCV, T::U32, )
A32OPC(SetFpscrNZCV, T::Void, T::U32, )
A32OPC(SetFpscrNZCV, T::Void, T::NZCVFlags )
// A64 Context getters/setters
A64OPC(SetCheckBit, T::Void, T::U1 )
@ -230,8 +230,8 @@ OPCODE(FPAbs32, T::U32, T::U32
OPCODE(FPAbs64, T::U64, T::U64 )
OPCODE(FPAdd32, T::U32, T::U32, T::U32 )
OPCODE(FPAdd64, T::U64, T::U64, T::U64 )
OPCODE(FPCompare32, T::Void, T::U32, T::U32, T::U1 )
OPCODE(FPCompare64, T::Void, T::U64, T::U64, T::U1 )
OPCODE(FPCompare32, T::NZCVFlags, T::U32, T::U32, T::U1 )
OPCODE(FPCompare64, T::NZCVFlags, T::U64, T::U64, T::U1 )
OPCODE(FPDiv32, T::U32, T::U32, T::U32 )
OPCODE(FPDiv64, T::U64, T::U64, T::U64 )
OPCODE(FPMul32, T::U32, T::U32, T::U32 )