mirror of https://github.com/RPCS3/rpcs3.git
Fixes
This commit is contained in:
RipleyTom
parent
2979c618de
commit
ef5cffdead
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@ -5637,18 +5637,18 @@ public:
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};
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// FM(a, re_accurate(div))
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if (const auto [ok_re_acc, div, one] = match_expr(b, re_accurate(match<f32[4]>(), match<f32[4]>())); ok_re_acc)
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if (const auto [ok_re_acc, div] = match_expr(b, re_accurate(match<f32[4]>())); ok_re_acc)
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{
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full_fm_accurate(a, div);
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erase_stores(one, b);
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erase_stores(b);
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return;
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}
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// FM(re_accurate(div), b)
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if (const auto [ok_re_acc, div, one] = match_expr(a, re_accurate(match<f32[4]>(), match<f32[4]>())); ok_re_acc)
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if (const auto [ok_re_acc, div] = match_expr(a, re_accurate(match<f32[4]>())); ok_re_acc)
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{
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full_fm_accurate(b, div);
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erase_stores(one, a);
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erase_stores(a);
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return;
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}
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}
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@ -5973,10 +5973,10 @@ public:
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return llvm_calli<f32[4], T, U, V>{"spu_fma", {std::forward<T>(a), std::forward<U>(b), std::forward<V>(c)}}.set_order_equality_hint(1, 1, 0);
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}
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template <typename T, typename U>
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static llvm_calli<f32[4], T, U> re_accurate(T&& a, U&& b)
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template <typename T>
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static llvm_calli<f32[4], T> re_accurate(T&& a)
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{
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return {"spu_re_acc", {std::forward<T>(a), std::forward<U>(b)}};
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return {"spu_re_acc", {std::forward<T>(a)}};
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}
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void FMA(spu_opcode_t op)
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@ -5995,26 +5995,18 @@ public:
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const auto b = value<f32[4]>(ci->getOperand(1));
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const auto c = value<f32[4]>(ci->getOperand(2));
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if (g_cfg.core.spu_xfloat_accuracy == xfloat_accuracy::approximate)
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{
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const auto ma = sext<s32[4]>(fcmp_uno(a != fsplat<f32[4]>(0.)));
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const auto mb = sext<s32[4]>(fcmp_uno(b != fsplat<f32[4]>(0.)));
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const auto ca = bitcast<f32[4]>(bitcast<s32[4]>(a) & mb);
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const auto cb = bitcast<f32[4]>(bitcast<s32[4]>(b) & ma);
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return fma32x4(eval(ca), eval(cb), c);
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}
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else
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{
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return fma32x4(a, b, c);
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}
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const auto ma = sext<s32[4]>(fcmp_uno(a != fsplat<f32[4]>(0.)));
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const auto mb = sext<s32[4]>(fcmp_uno(b != fsplat<f32[4]>(0.)));
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const auto ca = bitcast<f32[4]>(bitcast<s32[4]>(a) & mb);
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const auto cb = bitcast<f32[4]>(bitcast<s32[4]>(b) & ma);
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return fma32x4(eval(ca), eval(cb), c);
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});
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register_intrinsic("spu_re_acc", [&](llvm::CallInst* ci)
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{
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const auto div = value<f32[4]>(ci->getOperand(0));
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const auto the_one = value<f32[4]>(ci->getOperand(1));
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const auto div_result = the_one / div;
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const auto div_result = fsplat<f32[4]>(1.0f) / div;
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// From ps3 hardware testing: Inf => NaN and NaN => Zero, Signed Zero => Zero
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// This results in full accuracy within 1ulp(Currently x86 seems to be rounding up?)
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@ -6029,6 +6021,8 @@ public:
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return bitcast<f32[4]>(((bitcast<u32[4]>(div_result) & and_mask) & and_mask_zero) | or_mask);
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});
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constexpr f32 ONEISH = std::bit_cast<f32>(std::bit_cast<u32>(1.0f) + 1);
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const auto [a, b, c] = get_vrs<f32[4]>(op.ra, op.rb, op.rc);
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static const auto MT = match<f32[4]>();
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const auto full_expr = fma(a, b, c);
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@ -6056,57 +6050,67 @@ public:
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if (check_sqrt_pattern_for_float(1.0f))
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return;
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if (check_sqrt_pattern_for_float(std::bit_cast<f32>(std::bit_cast<u32>(1.0f) + 1)))
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if (check_sqrt_pattern_for_float(ONEISH))
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return;
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auto check_accurate_reciprocal_pattern_for_float = [&](f32 float_value) -> bool
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// Full reciprocal patterns
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// FMA(FNMS(div <*> spu_re(div), float_value) <*> spu_re(div), spu_re(div))
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if (auto [ok_c, div] = match_expr(c, spu_re(MT)); ok_c)
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{
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// FMA(FNMS(div <*> spu_re(div), float_value) <*> spu_re(div), spu_re(div))
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if (auto [ok_c, div] = match_expr(c, spu_re(MT)); ok_c)
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auto check_accurate_reciprocal_pattern_for_float = [&](f32 float_value) -> bool
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{
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if (auto [ok_fma] = match_expr(full_expr, fma(fnms(div, c, fsplat<f32[4]>(float_value)), c, c)); ok_fma)
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{
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erase_stores(a, b, c);
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set_vr(op.rt4, re_accurate(div, fsplat<f32[4]>(float_value)));
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set_vr(op.rt4, re_accurate(div));
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return true;
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}
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}
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return false;
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};
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return false;
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};
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if (check_accurate_reciprocal_pattern_for_float(1.0f))
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return;
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if (check_accurate_reciprocal_pattern_for_float(1.0f))
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return;
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if (check_accurate_reciprocal_pattern_for_float(ONEISH))
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return;
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if (check_accurate_reciprocal_pattern_for_float(std::bit_cast<f32>(std::bit_cast<u32>(1.0f) + 1)))
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return;
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// GOW 3(uses 1.0f * spu_re(div) instead of just spu_re(div) in the pattern)
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if (auto [ok_fm, div] = match_expr(c, fm(spu_re(MT), fsplat<f32[4]>(1.0f))); ok_fm)
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{
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if (auto [ok_fma] = match_expr(full_expr, fma(fnms(c, div, fsplat<f32[4]>(1.0f)), spu_re(div), c)); ok_fma)
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// Generate dynamic pattern for when float is unknown because of scope
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if (auto [ok_fma, cursed_float] = match_expr(full_expr, fma(fnms(div, c, MT), c, c)); ok_fma)
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{
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erase_stores(a, b, c);
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set_vr(op.rt4, re_accurate(div, fsplat<f32[4]>(1.0f)));
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const auto bitcast_float = bitcast<u32[4]>(cursed_float);
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set_vr(op.rt4, select(bitcast_float == splat<u32[4]>(0x3F800000) | bitcast_float == splat<u32[4]>(0x3F800001), re_accurate(div), fma(fnms(spu_re(div), div, cursed_float), spu_re(div), spu_re(div))));
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return;
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}
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}
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// NFS Most Wanted doesn't like this
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if (g_cfg.core.spu_xfloat_accuracy == xfloat_accuracy::relaxed)
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{
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// Those patterns are not safe vs non optimization as inaccuracy from spu_re will spread with early fm before the accuracy is improved
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// Match division (fast)
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// FMA(FNMS(fm(diva<*> spu_re(divb)), divb, diva), spu_re(divb), fm(diva<*> spu_re(divb)))
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// FMA(FNMS(fm(diva <*> spu_re(divb)), divb, diva), spu_re(divb), fm(diva <*> spu_re(divb)))
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// NFS: Most Wanted doesn't like this pattern
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auto full_fast_div = [&](const auto& diva, const auto& divb)
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{
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const auto div_result = diva / divb;
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const auto result_and = bitcast<u32[4]>(div_result) & 0x7FFFFFFFu;
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const auto result_cmp_inf = sext<s32[4]>(result_and == splat<u32[4]>(0x7F800000u));
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const auto result_cmp_nan = sext<s32[4]>(result_and <= splat<u32[4]>(0x7F800000u));
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const auto and_mask_zero = bitcast<u32[4]>(sext<s32[4]>(result_and != splat<u32[4]>(0u)));
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const auto and_mask = bitcast<u32[4]>(result_cmp_nan) & splat<u32[4]>(0xFFFFFFFFu);
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const auto or_mask = bitcast<u32[4]>(result_cmp_inf) & splat<u32[4]>(0xFFFFFFFu);
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const auto final_result = bitcast<f32[4]>(((bitcast<u32[4]>(div_result) & and_mask) & and_mask_zero) | or_mask);
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set_vr(op.rt4, final_result);
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};
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if (auto [ok_fnma, divb, diva] = match_expr(a, fnms(c, MT, MT)); ok_fnma)
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{
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if (auto [ok_fm, fm1, fm2] = match_expr(c, fm(MT, MT)); ok_fm && ((fm1.eq(diva) && fm2.eq(b)) || (fm1.eq(b) && fm2.eq(diva))))
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{
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if (auto [ok_re] = match_expr(b, spu_re(divb)); ok_re)
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{
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erase_stores(b, c);
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set_vr(op.rt4, diva / divb);
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erase_stores(a, b, c);
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full_fast_div(diva, divb);
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return;
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}
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}
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@ -6119,8 +6123,8 @@ public:
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{
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if (auto [ok_re] = match_expr(a, spu_re(divb)); ok_re)
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{
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erase_stores(a, c);
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set_vr(op.rt4, diva / divb);
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erase_stores(a, b, c);
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full_fast_div(diva, divb);
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return;
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}
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}
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