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[A64] Remove dead code

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This commit is contained in:
Herman S.
2026-03-29 17:16:56 +09:00
parent 2d2105cfd8
commit 553aedebb5
2 changed files with 4 additions and 95 deletions
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31
src/xenia/cpu/backend/a64/a64_seq_memory.cc
View File

@@ -959,37 +959,8 @@ struct ATOMIC_EXCHANGE_I32
e.mov(i.dest, e.w1);
}
};
struct ATOMIC_EXCHANGE_I64
: Sequence<ATOMIC_EXCHANGE_I64,
I<OPCODE_ATOMIC_EXCHANGE, I64Op, I64Op, I64Op>> {
static void Emit(A64Emitter& e, const EmitArgType& i) {
if (i.src1.is_constant) {
e.mov(e.x4, i.src1.constant());
} else {
e.mov(e.x4, i.src1);
}
if (i.src2.is_constant) {
e.mov(e.x0, static_cast<uint64_t>(i.src2.constant()));
} else {
e.mov(e.x0, i.src2);
}
if (e.IsFeatureEnabled(kA64EmitLSE)) {
e.swpal(i.dest, e.x0, ptr(e.x4));
return;
}
auto& retry = e.NewCachedLabel();
e.L(retry);
e.ldaxr(e.x1, ptr(e.x4));
e.stlxr(e.w2, e.x0, ptr(e.x4));
e.cbnz(e.w2, retry);
e.mov(i.dest, e.x1);
}
};
EMITTER_OPCODE_TABLE(OPCODE_ATOMIC_EXCHANGE, ATOMIC_EXCHANGE_I8,
ATOMIC_EXCHANGE_I16, ATOMIC_EXCHANGE_I32,
ATOMIC_EXCHANGE_I64);
ATOMIC_EXCHANGE_I16, ATOMIC_EXCHANGE_I32);
// ============================================================================
// OPCODE_ATOMIC_COMPARE_EXCHANGE

68
src/xenia/cpu/backend/a64/a64_sequences.cc
View File

@@ -3429,29 +3429,6 @@ struct CONVERT_F32_I32
}
}
};
struct CONVERT_F32_I64
: Sequence<CONVERT_F32_I64, I<OPCODE_CONVERT, F32Op, I64Op>> {
static void Emit(A64Emitter& e, const EmitArgType& i) {
if (i.src1.is_constant) {
e.mov(e.x0, static_cast<uint64_t>(i.src1.constant()));
e.scvtf(i.dest, e.x0);
} else {
e.scvtf(i.dest, i.src1);
}
}
};
struct CONVERT_F64_I32
: Sequence<CONVERT_F64_I32, I<OPCODE_CONVERT, F64Op, I32Op>> {
static void Emit(A64Emitter& e, const EmitArgType& i) {
if (i.src1.is_constant) {
e.mov(e.w0,
static_cast<uint64_t>(static_cast<uint32_t>(i.src1.constant())));
e.scvtf(i.dest, e.w0);
} else {
e.scvtf(i.dest, i.src1);
}
}
};
struct CONVERT_F64_I64
: Sequence<CONVERT_F64_I64, I<OPCODE_CONVERT, F64Op, I64Op>> {
static void Emit(A64Emitter& e, const EmitArgType& i) {
@@ -3498,9 +3475,8 @@ struct CONVERT_F64_F32
}
};
EMITTER_OPCODE_TABLE(OPCODE_CONVERT, CONVERT_I32_F32, CONVERT_I32_F64,
CONVERT_I64_F64, CONVERT_F32_I32, CONVERT_F32_I64,
CONVERT_F64_I32, CONVERT_F64_I64, CONVERT_F32_F64,
CONVERT_F64_F32);
CONVERT_I64_F64, CONVERT_F32_I32, CONVERT_F64_I64,
CONVERT_F32_F64, CONVERT_F64_F32);
// ============================================================================
// OPCODE_ROUND
@@ -4090,44 +4066,6 @@ EMITTER_OPCODE_TABLE(OPCODE_MUL_ADD, MUL_ADD_F32, MUL_ADD_F64, MUL_ADD_V128);
// ============================================================================
// OPCODE_MUL_SUB (fused multiply-subtract)
// ============================================================================
struct MUL_SUB_F32
: Sequence<MUL_SUB_F32, I<OPCODE_MUL_SUB, F32Op, F32Op, F32Op, F32Op>> {
static void Emit(A64Emitter& e, const EmitArgType& i) {
// dest = src1 * src2 - src3
// ARM64 fnmsub(d,n,m,a) = -a + n*m = n*m - a
SReg s1 = i.src1.is_constant ? e.s0 : SReg(i.src1.reg().getIdx());
SReg s2 = i.src2.is_constant ? e.s1 : SReg(i.src2.reg().getIdx());
SReg s3 = i.src3.is_constant ? e.s2 : SReg(i.src3.reg().getIdx());
if (i.src1.is_constant) {
union {
float f;
uint32_t u;
} c;
c.f = i.src1.constant();
e.mov(e.w0, static_cast<uint64_t>(c.u));
e.fmov(e.s0, e.w0);
}
if (i.src2.is_constant) {
union {
float f;
uint32_t u;
} c;
c.f = i.src2.constant();
e.mov(e.w0, static_cast<uint64_t>(c.u));
e.fmov(e.s1, e.w0);
}
if (i.src3.is_constant) {
union {
float f;
uint32_t u;
} c;
c.f = i.src3.constant();
e.mov(e.w0, static_cast<uint64_t>(c.u));
e.fmov(e.s2, e.w0);
}
EmitFmaWithPpcNan_F32(e, i.dest, s1, s2, s3, /*is_sub=*/true);
}
};
struct MUL_SUB_F64
: Sequence<MUL_SUB_F64, I<OPCODE_MUL_SUB, F64Op, F64Op, F64Op, F64Op>> {
static void Emit(A64Emitter& e, const EmitArgType& i) {
@@ -4208,7 +4146,7 @@ struct MUL_SUB_V128
});
}
};
EMITTER_OPCODE_TABLE(OPCODE_MUL_SUB, MUL_SUB_F32, MUL_SUB_F64, MUL_SUB_V128);
EMITTER_OPCODE_TABLE(OPCODE_MUL_SUB, MUL_SUB_F64, MUL_SUB_V128);
// ============================================================================
// POW2 / LOG2 / DOT_PRODUCT C helper functions (called via CallNativeSafe)