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IR: Initial implementation of FP{Double,Single}ToFixed{S,U}{32,64}

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This implementation just falls-back to the software floating point implementation.
This commit is contained in:
MerryMage
2018-06-30 10:49:47 +01:00
parent 760cc3ca89
commit caaf36dfd6
12 changed files with 159 additions and 173 deletions
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44
src/frontend/ir/ir_emitter.cpp
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@@ -1451,24 +1451,44 @@ U64 IREmitter::FPSingleToDouble(const U32& a, bool fpscr_controlled) {
return Inst<U64>(Opcode::FPSingleToDouble, a);
}
U32 IREmitter::FPSingleToS32(const U32& a, bool round_towards_zero, bool fpscr_controlled) {
ASSERT(fpscr_controlled);
return Inst<U32>(Opcode::FPSingleToS32, a, Imm1(round_towards_zero));
U32 IREmitter::FPDoubleToFixedS32(const U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 32);
return Inst<U32>(Opcode::FPDoubleToFixedS32, a, Imm8(static_cast<u8>(fbits)), Imm8(static_cast<u8>(rounding)));
}
U32 IREmitter::FPSingleToU32(const U32& a, bool round_towards_zero, bool fpscr_controlled) {
ASSERT(fpscr_controlled);
return Inst<U32>(Opcode::FPSingleToU32, a, Imm1(round_towards_zero));
U64 IREmitter::FPDoubleToFixedS64(const U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 64);
return Inst<U64>(Opcode::FPDoubleToFixedS64, a, Imm8(static_cast<u8>(fbits)), Imm8(static_cast<u8>(rounding)));
}
U32 IREmitter::FPDoubleToS32(const U64& a, bool round_towards_zero, bool fpscr_controlled) {
ASSERT(fpscr_controlled);
return Inst<U32>(Opcode::FPDoubleToS32, a, Imm1(round_towards_zero));
U32 IREmitter::FPDoubleToFixedU32(const U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 32);
return Inst<U32>(Opcode::FPDoubleToFixedU32, a, Imm8(static_cast<u8>(fbits)), Imm8(static_cast<u8>(rounding)));
}
U32 IREmitter::FPDoubleToU32(const U64& a, bool round_towards_zero, bool fpscr_controlled) {
ASSERT(fpscr_controlled);
return Inst<U32>(Opcode::FPDoubleToU32, a, Imm1(round_towards_zero));
U64 IREmitter::FPDoubleToFixedU64(const U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 64);
return Inst<U64>(Opcode::FPDoubleToFixedU64, a, Imm8(static_cast<u8>(fbits)), Imm8(static_cast<u8>(rounding)));
}
U32 IREmitter::FPSingleToFixedS32(const U32& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 32);
return Inst<U32>(Opcode::FPSingleToFixedS32, a, Imm8(static_cast<u8>(fbits)), Imm8(static_cast<u8>(rounding)));
}
U64 IREmitter::FPSingleToFixedS64(const U32& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 64);
return Inst<U64>(Opcode::FPSingleToFixedS64, a, Imm8(static_cast<u8>(fbits)), Imm8(static_cast<u8>(rounding)));
}
U32 IREmitter::FPSingleToFixedU32(const U32& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 32);
return Inst<U32>(Opcode::FPSingleToFixedU32, a, Imm8(static_cast<u8>(fbits)), Imm8(static_cast<u8>(rounding)));
}
U64 IREmitter::FPSingleToFixedU64(const U32& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 64);
return Inst<U64>(Opcode::FPSingleToFixedU64, a, Imm8(static_cast<u8>(fbits)), Imm8(static_cast<u8>(rounding)));
}
U32 IREmitter::FPS32ToSingle(const U32& a, bool round_to_nearest, bool fpscr_controlled) {