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Arm64: Implements AtomicFetchNeg IR op

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Ryan Houdek committed 2021-07-10 23:29:49 -07:00
1 parent d0bcdeda6b
commit 484d756a26
2 files changed
+52
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External/FEXCore/Source/Interface/Core/JIT/Arm64/AtomicOps.cpp
Vendored
+51
View File
@@ -877,6 +877,56 @@ DEF_OP(AtomicFetchXor) {
}
}
DEF_OP(AtomicFetchNeg) {
auto Op = IROp->C<IR::IROp_AtomicFetchNeg>();
auto MemSrc = GetReg<RA_64>(Op->Header.Args[0].ID());
// TMP2-TMP3
switch (Op->Size) {
case 1: {
aarch64::Label LoopTop;
bind(&LoopTop);
ldaxrb(TMP2.W(), MemOperand(MemSrc));
neg(TMP3.W(), TMP2.W());
stlxrb(TMP4.W(), TMP3.W(), MemOperand(MemSrc));
cbnz(TMP4.W(), &LoopTop);
mov(GetReg<RA_32>(Node), TMP2.W());
break;
}
case 2: {
aarch64::Label LoopTop;
bind(&LoopTop);
ldaxrh(TMP2.W(), MemOperand(MemSrc));
neg(TMP3.W(), TMP2.W());
stlxrh(TMP4.W(), TMP3.W(), MemOperand(MemSrc));
cbnz(TMP4.W(), &LoopTop);
mov(GetReg<RA_32>(Node), TMP2.W());
break;
}
case 4: {
aarch64::Label LoopTop;
bind(&LoopTop);
ldaxr(TMP2.W(), MemOperand(MemSrc));
neg(TMP3.W(), TMP2.W());
stlxr(TMP4.W(), TMP3.W(), MemOperand(MemSrc));
cbnz(TMP4.W(), &LoopTop);
mov(GetReg<RA_32>(Node), TMP2.W());
break;
}
case 8: {
aarch64::Label LoopTop;
bind(&LoopTop);
ldaxr(TMP2, MemOperand(MemSrc));
neg(TMP3, TMP2);
stlxr(TMP4, TMP3, MemOperand(MemSrc));
cbnz(TMP4, &LoopTop);
mov(GetReg<RA_64>(Node), TMP2);
break;
}
default: LOGMAN_MSG_A("Unhandled Atomic size: %d", Op->Size);
}
}
#undef DEF_OP
void Arm64JITCore::RegisterAtomicHandlers() {
#define REGISTER_OP(op, x) OpHandlers[FEXCore::IR::IROps::OP_##op] = &Arm64JITCore::Op_##x
@@ -893,6 +943,7 @@ void Arm64JITCore::RegisterAtomicHandlers() {
REGISTER_OP(ATOMICFETCHAND, AtomicFetchAnd);
REGISTER_OP(ATOMICFETCHOR, AtomicFetchOr);
REGISTER_OP(ATOMICFETCHXOR, AtomicFetchXor);
REGISTER_OP(ATOMICFETCHNEG, AtomicFetchNeg);
#undef REGISTER_OP
}
}
External/FEXCore/Source/Interface/Core/JIT/Arm64/JITClass.h
Vendored
+1
View File
@@ -257,6 +257,7 @@ private:
DEF_OP(AtomicFetchAnd);
DEF_OP(AtomicFetchOr);
DEF_OP(AtomicFetchXor);
DEF_OP(AtomicFetchNeg);
///< Branch ops
DEF_OP(GuestCallDirect);