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PPU LLVM: rewrite more packing instructions 

Rewritten VPKUHUM, VPKUHUS, VPKUWUM, VPKUWUS.
Decoupled saturation test from sat pack pattern.
This commit is contained in:
Nekotekina 2021-06-18 09:29:46 +03:00
parent e7c827f73b
commit 86b194014b
1 changed files with 18 additions and 16 deletions
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34
rpcs3/Emu/Cell/PPUTranslator.cpp
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@ -1372,34 +1372,36 @@ void PPUTranslator::VPKSWUS(ppu_opcode_t op)
void PPUTranslator::VPKUHUM(ppu_opcode_t op)
{
const auto ab = GetVrs(VrType::vi16, op.va, op.vb);
const auto src = Shuffle(ab[0], ab[1], { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 });
SetVr(op.vd, src); // Truncate
const auto [a, b] = get_vrs<u8[16]>(op.va, op.vb);
const auto r = shuffle2(b, a, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30);
set_vr(op.vd, r);
}
void PPUTranslator::VPKUHUS(ppu_opcode_t op)
{
const auto ab = GetVrs(VrType::vi16, op.va, op.vb);
const auto src = Shuffle(ab[0], ab[1], { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 });
const auto saturated = Saturate(src, ICmpInst::ICMP_UGT, m_ir->getInt16(0xff));
SetVr(op.vd, saturated.first);
SetSat(IsNotZero(saturated.second));
const auto [a, b] = get_vrs<u16[8]>(op.va, op.vb);
const auto ta = bitcast<u8[16]>(min(a, splat<u16[8]>(0xff)));
const auto tb = bitcast<u8[16]>(min(b, splat<u16[8]>(0xff)));
const auto r = shuffle2(tb, ta, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30);
set_vr(op.vd, r);
SetSat(IsNotZero(eval((a | b) >> 8).value));
}
void PPUTranslator::VPKUWUM(ppu_opcode_t op)
{
const auto ab = GetVrs(VrType::vi32, op.va, op.vb);
const auto src = Shuffle(ab[0], ab[1], { 0, 1, 2, 3, 4, 5, 6, 7 });
SetVr(op.vd, src); // Truncate
const auto [a, b] = get_vrs<u16[8]>(op.va, op.vb);
const auto r = shuffle2(b, a, 0, 2, 4, 6, 8, 10, 12, 14);
set_vr(op.vd, r);
}
void PPUTranslator::VPKUWUS(ppu_opcode_t op)
{
const auto ab = GetVrs(VrType::vi32, op.va, op.vb);
const auto src = Shuffle(ab[0], ab[1], { 0, 1, 2, 3, 4, 5, 6, 7 });
const auto saturated = Saturate(src, ICmpInst::ICMP_UGT, m_ir->getInt32(0xffff));
SetVr(op.vd, saturated.first);
SetSat(IsNotZero(saturated.second));
const auto [a, b] = get_vrs<u32[4]>(op.va, op.vb);
const auto ta = bitcast<u16[8]>(min(a, splat<u32[4]>(0xffff)));
const auto tb = bitcast<u16[8]>(min(b, splat<u32[4]>(0xffff)));
const auto r = shuffle2(tb, ta, 0, 2, 4, 6, 8, 10, 12, 14);
set_vr(op.vd, r);
SetSat(IsNotZero(eval((a | b) >> 16).value));
}
void PPUTranslator::VREFP(ppu_opcode_t op)