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Implement cpu_translator::pshufb<>()

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Remove spu_translator::pshufb<>()
Improve PSHUFB emulation (pre-SSSE3)
Emit static shufflevector for the constant mask
PPU: Inline VPERM instruction
This commit is contained in:
Nekotekina 2018-06-28 16:21:08 +03:00
parent 41eab62ed7
commit a0bf103e8b
5 changed files with 77 additions and 36 deletions
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31
rpcs3/Emu/Cell/SPURecompiler.cpp
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@ -1892,36 +1892,6 @@ class spu_llvm_recompiler : public spu_recompiler_base, public cpu_translator
m_ir->CreateRetVoid();
}
template <typename T1, typename T2>
value_t<u8[16]> pshufb(T1 a, T2 b)
{
value_t<u8[16]> result;
if (m_spurt->m_jit.has_ssse3())
{
result.value = m_ir->CreateCall(get_intrinsic(llvm::Intrinsic::x86_ssse3_pshuf_b_128), {a.eval(m_ir), b.eval(m_ir)});
}
else
{
const auto data0 = a.eval(m_ir);
const auto index = b.eval(m_ir);
const auto mask = m_ir->CreateAnd(index, 0xf);
const auto zero = llvm::ConstantInt::get(get_type<u8[16]>(), 0u);
result.value = zero;
for (u32 i = 0; i < 16; i++)
{
const auto x = m_ir->CreateExtractElement(data0, m_ir->CreateExtractElement(mask, i));
result.value = m_ir->CreateInsertElement(result.value, x, i);
}
result.value = m_ir->CreateSelect(m_ir->CreateICmpSLT(index, zero), zero, result.value);
}
return result;
}
public:
spu_llvm_recompiler()
: spu_recompiler_base()
@ -1942,6 +1912,7 @@ public:
m_cache = fxm::get<spu_cache>();
m_spurt = fxm::get_always<spu_llvm_runtime>();
m_context = m_spurt->m_jit.get_context();
m_use_ssse3 = m_spurt->m_jit.has_ssse3();
}
}