FEX-Emu/FEX
1
0
Fork 0
mirror of https://github.com/FEX-Emu/FEX.git synced 2025-01-18 20:35:03 +00:00
Code Issues Actions 6 Packages Projects Releases Wiki Activity

IR: add AddWithFlags

Browse Source 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
This commit is contained in:
Alyssa Rosenzweig 2024-02-21 22:04:18 -04:00
parent df5bdefb8a
commit 8540332520
4 changed files with 31 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
FEXCore/Source/Interface/Core/JIT/Arm64/ALUOps.cpp
View File

@ -85,6 +85,21 @@ DEF_OP(Add) {
}
}
DEF_OP(AddWithFlags) {
auto Op = IROp->C<IR::IROp_AddWithFlags>();
const uint8_t OpSize = IROp->Size;
LOGMAN_THROW_AA_FMT(OpSize == 4 || OpSize == 8, "Unsupported {} size: {}", __func__, OpSize);
const auto EmitSize = OpSize == IR::i64Bit ? ARMEmitter::Size::i64Bit : ARMEmitter::Size::i32Bit;
uint64_t Const;
if (IsInlineConstant(Op->Src2, &Const)) {
adds(EmitSize, GetReg(Node), GetReg(Op->Src1.ID()), Const);
} else {
adds(EmitSize, GetReg(Node), GetReg(Op->Src1.ID()), GetReg(Op->Src2.ID()));
}
}
DEF_OP(AddShift) {
auto Op = IROp->C<IR::IROp_AddShift>();
const uint8_t OpSize = IROp->Size;

8
FEXCore/Source/Interface/IR/IR.json
View File

@ -961,6 +961,14 @@
"_Shift != ShiftType::ROR"
]
},
"GPR = AddWithFlags OpSize:#Size, GPR:$Src1, GPR:$Src2": {
"Desc": [ "Integer add. Truncates and sets NZCV per AddNZCV"],
"DestSize": "Size",
"HasSideEffects": true,
"EmitValidation": [
"Size == FEXCore::IR::OpSize::i32Bit || Size == FEXCore::IR::OpSize::i64Bit"
]
},
"AddNZCV OpSize:#Size, GPR:$Src1, GPR:$Src2": {
"Desc": ["Set NZCV for the sum of two GPRs"],
"HasSideEffects": true,

1
FEXCore/Source/Interface/IR/Passes/ConstProp.cpp
View File

@ -965,6 +965,7 @@ bool ConstProp::ConstantInlining(IREmitter *IREmit, const IRListView& CurrentIR)
case OP_SUB:
case OP_ADDNZCV:
case OP_SUBNZCV:
case OP_ADDWITHFLAGS:
case OP_SUBWITHFLAGS:
{
auto Op = IROp->C<IR::IROp_Add>();

7
FEXCore/Source/Interface/IR/Passes/RedundantFlagCalculationElimination.cpp
View File

@ -128,6 +128,13 @@ DeadFlagCalculationEliminination::Classify(IROp_Header *IROp)
.Replacement = OP_AND,
};
case OP_ADDWITHFLAGS:
return {
.Write = FLAG_NZCV,
.CanReplace = true,
.Replacement = OP_ADD,
};
case OP_SUBWITHFLAGS:
return {
.Write = FLAG_NZCV,