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Whole-tree reformat with clang-format-19
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Paulo Matos committed
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@@ -2024,41 +2024,41 @@ void OpDispatchBuilder::RCROp(OpcodeArgs) {
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Calculate_ShiftVariable(
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Op, SrcMasked,
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[this, Op, Size, OpSize]() {
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// Rematerialize loads to avoid crossblock liveness
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Ref Src = LoadSource(GPRClass, Op, Op->Src[1], Op->Flags, {.AllowUpperGarbage = true});
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Ref Dest = LoadSource(GPRClass, Op, Op->Dest, Op->Flags, {.AllowUpperGarbage = true});
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// Rematerialize loads to avoid crossblock liveness
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Ref Src = LoadSource(GPRClass, Op, Op->Src[1], Op->Flags, {.AllowUpperGarbage = true});
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Ref Dest = LoadSource(GPRClass, Op, Op->Dest, Op->Flags, {.AllowUpperGarbage = true});
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// Res = Src >> Shift
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Ref Res = _Lshr(OpSize, Dest, Src);
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auto CF = GetRFLAG(FEXCore::X86State::RFLAG_CF_RAW_LOC);
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// Res = Src >> Shift
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Ref Res = _Lshr(OpSize, Dest, Src);
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auto CF = GetRFLAG(FEXCore::X86State::RFLAG_CF_RAW_LOC);
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auto One = _Constant(OpSizeFromSrc(Op), 1);
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auto One = _Constant(OpSizeFromSrc(Op), 1);
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// Res |= (Dest << (Size - Shift + 1));
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// Expressed as Res | ((Src << (Size - Shift)) << 1) to get correct
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// behaviour for Shift without clobbering NZCV. Then observe that modulo
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// Size, Size - Shift = -Shift so we can use a simple Neg.
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//
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// The masking of Lshl means we don't need mask the source, since:
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//
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// -(x & Mask) & Mask = (-x) & Mask
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Ref NegSrc = _Neg(OpSize, Src);
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Res = _Orlshl(OpSize, Res, _Lshl(OpSize, Dest, NegSrc), 1);
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// Res |= (Dest << (Size - Shift + 1));
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// Expressed as Res | ((Src << (Size - Shift)) << 1) to get correct
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// behaviour for Shift without clobbering NZCV. Then observe that modulo
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// Size, Size - Shift = -Shift so we can use a simple Neg.
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//
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// The masking of Lshl means we don't need mask the source, since:
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//
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// -(x & Mask) & Mask = (-x) & Mask
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Ref NegSrc = _Neg(OpSize, Src);
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Res = _Orlshl(OpSize, Res, _Lshl(OpSize, Dest, NegSrc), 1);
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// Our new CF will be bit (Shift - 1) of the source. this is hoisted up to
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// avoid the need to copy the source. Again, the Lshr absorbs the masking.
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auto NewCF = _Lshr(OpSize, Dest, _Sub(OpSize, Src, One));
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SetCFDirect(NewCF, 0, true);
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// Our new CF will be bit (Shift - 1) of the source. this is hoisted up to
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// avoid the need to copy the source. Again, the Lshr absorbs the masking.
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auto NewCF = _Lshr(OpSize, Dest, _Sub(OpSize, Src, One));
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SetCFDirect(NewCF, 0, true);
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// Since shift != 0 we can inject the CF
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Res = _Or(OpSize, Res, _Lshl(OpSize, CF, NegSrc));
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// Since shift != 0 we can inject the CF
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Res = _Or(OpSize, Res, _Lshl(OpSize, CF, NegSrc));
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// OF is the top two MSBs XOR'd together
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// Only when Shift == 1, it is undefined otherwise
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auto Xor = _XorShift(OpSize, Res, Res, ShiftType::LSR, 1);
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SetRFLAG<FEXCore::X86State::RFLAG_OF_RAW_LOC>(Xor, Size - 2, true);
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// OF is the top two MSBs XOR'd together
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// Only when Shift == 1, it is undefined otherwise
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auto Xor = _XorShift(OpSize, Res, Res, ShiftType::LSR, 1);
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SetRFLAG<FEXCore::X86State::RFLAG_OF_RAW_LOC>(Xor, Size - 2, true);
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StoreResult(GPRClass, Op, Res, OpSize::iInvalid);
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StoreResult(GPRClass, Op, Res, OpSize::iInvalid);
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},
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OpSizeFromSrc(Op) == OpSize::i32Bit ? std::make_optional(&OpDispatchBuilder::ZeroShiftResult) : std::nullopt);
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}
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@@ -2243,38 +2243,38 @@ void OpDispatchBuilder::RCLOp(OpcodeArgs) {
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Calculate_ShiftVariable(
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Op, SrcMasked,
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[this, Op, Size, OpSize]() {
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// Rematerialized to avoid crossblock liveness
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Ref Src = LoadSource(GPRClass, Op, Op->Src[1], Op->Flags, {.AllowUpperGarbage = true});
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// Rematerialized to avoid crossblock liveness
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Ref Src = LoadSource(GPRClass, Op, Op->Src[1], Op->Flags, {.AllowUpperGarbage = true});
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// Res = Src << Shift
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Ref Dest = LoadSource(GPRClass, Op, Op->Dest, Op->Flags, {.AllowUpperGarbage = true});
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Ref Res = _Lshl(OpSize, Dest, Src);
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auto CF = GetRFLAG(FEXCore::X86State::RFLAG_CF_RAW_LOC);
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// Res = Src << Shift
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Ref Dest = LoadSource(GPRClass, Op, Op->Dest, Op->Flags, {.AllowUpperGarbage = true});
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Ref Res = _Lshl(OpSize, Dest, Src);
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auto CF = GetRFLAG(FEXCore::X86State::RFLAG_CF_RAW_LOC);
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// Res |= (Dest >> (Size - Shift + 1)), expressed as
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// Res | ((Dest >> (-Shift)) >> 1), since Size - Shift = -Shift mod
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// Size. The shift aborbs the masking.
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auto NegSrc = _Neg(OpSize, Src);
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Res = _Orlshr(OpSize, Res, _Lshr(OpSize, Dest, NegSrc), 1);
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// Res |= (Dest >> (Size - Shift + 1)), expressed as
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// Res | ((Dest >> (-Shift)) >> 1), since Size - Shift = -Shift mod
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// Size. The shift aborbs the masking.
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auto NegSrc = _Neg(OpSize, Src);
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Res = _Orlshr(OpSize, Res, _Lshr(OpSize, Dest, NegSrc), 1);
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// Our new CF will be bit (Shift - 1) of the source
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auto NewCF = _Lshr(OpSize, Dest, NegSrc);
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SetCFDirect(NewCF, 0, true);
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// Our new CF will be bit (Shift - 1) of the source
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auto NewCF = _Lshr(OpSize, Dest, NegSrc);
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SetCFDirect(NewCF, 0, true);
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// Since Shift != 0 we can inject the CF. Shift absorbs the masking.
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Ref CFShl = _Sub(OpSize, Src, _InlineConstant(1));
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auto TmpCF = _Lshl(OpSize, CF, CFShl);
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Res = _Or(OpSize, Res, TmpCF);
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// Since Shift != 0 we can inject the CF. Shift absorbs the masking.
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Ref CFShl = _Sub(OpSize, Src, _InlineConstant(1));
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auto TmpCF = _Lshl(OpSize, CF, CFShl);
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Res = _Or(OpSize, Res, TmpCF);
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// OF is the top two MSBs XOR'd together
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// Only when Shift == 1, it is undefined otherwise
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//
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// Note that NewCF has garbage in the upper bits, but we ignore them here
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// and mask as part of the set after.
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auto NewOF = _XorShift(OpSize, Res, NewCF, ShiftType::LSL, Size - 1);
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SetRFLAG<FEXCore::X86State::RFLAG_OF_RAW_LOC>(NewOF, Size - 1, true);
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// OF is the top two MSBs XOR'd together
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// Only when Shift == 1, it is undefined otherwise
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//
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// Note that NewCF has garbage in the upper bits, but we ignore them here
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// and mask as part of the set after.
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auto NewOF = _XorShift(OpSize, Res, NewCF, ShiftType::LSL, Size - 1);
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SetRFLAG<FEXCore::X86State::RFLAG_OF_RAW_LOC>(NewOF, Size - 1, true);
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StoreResult(GPRClass, Op, Res, OpSize::iInvalid);
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StoreResult(GPRClass, Op, Res, OpSize::iInvalid);
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},
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OpSizeFromSrc(Op) == OpSize::i32Bit ? std::make_optional(&OpDispatchBuilder::ZeroShiftResult) : std::nullopt);
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}
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@@ -4664,8 +4664,7 @@ void OpDispatchBuilder::CLWBOrTPause(OpcodeArgs) {
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if (DestIsMem(Op)) {
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Ref DestMem = MakeSegmentAddress(Op, Op->Dest);
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_CacheLineClean(DestMem);
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}
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else {
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} else {
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if (!CTX->HostFeatures.SupportsWFXT) {
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UnimplementedOp(Op);
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} else {
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@@ -4721,8 +4720,7 @@ void OpDispatchBuilder::UMonitorOrCLRSSBSY(OpcodeArgs) {
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if (DestIsMem(Op) || !CTX->HostFeatures.SupportsWFXT) {
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// CLRSSBSY
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UnimplementedOp(Op);
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}
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else {
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} else {
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// Explicit NOP implementation of umonitor.
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}
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}
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@@ -4730,8 +4728,7 @@ void OpDispatchBuilder::UMonitorOrCLRSSBSY(OpcodeArgs) {
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void OpDispatchBuilder::UMWaitOp(OpcodeArgs) {
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if (DestIsMem(Op) || !CTX->HostFeatures.SupportsWFXT) {
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UnimplementedOp(Op);
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}
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else {
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} else {
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// Explicit NOP implementation of umwait.
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// Still zero flags.
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//
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