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early-access version 2347

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This commit is contained in:
pineappleEA
2021-12-25 06:04:38 +01:00
parent c208875b26
commit 0ada4bd09a
12 changed files with 93 additions and 21 deletions
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1
src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
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@@ -389,6 +389,7 @@ void VisitUsages(Info& info, IR::Inst& inst) {
info.uses_demote_to_helper_invocation = true;
break;
case IR::Opcode::GetAttribute:
case IR::Opcode::GetAttributeU32:
info.loads.mask[static_cast<size_t>(inst.Arg(0).Attribute())] = true;
break;
case IR::Opcode::SetAttribute:

23
src/shader_recompiler/ir_opt/constant_propagation_pass.cpp
View File

@@ -505,6 +505,29 @@ void FoldBitCast(IR::Inst& inst, IR::Opcode reverse) {
return;
}
}
if constexpr (op == IR::Opcode::BitCastU32F32) {
// Workaround for new NVIDIA driver bug, where:
// uint attr = ftou(itof(gl_InstanceID));
// always returned 0.
// We can instead manually optimize this and work around the driver bug:
// uint attr = uint(gl_InstanceID);
if (arg_inst->GetOpcode() == IR::Opcode::GetAttribute) {
const IR::Attribute attr{arg_inst->Arg(0).Attribute()};
switch (attr) {
case IR::Attribute::PrimitiveId:
case IR::Attribute::InstanceId:
case IR::Attribute::VertexId:
break;
default:
return;
}
// Replace the bitcasts with an integer attribute get
inst.ReplaceOpcode(IR::Opcode::GetAttributeU32);
inst.SetArg(0, arg_inst->Arg(0));
inst.SetArg(1, arg_inst->Arg(1));
return;
}
}
}
void FoldInverseFunc(IR::Inst& inst, IR::Opcode reverse) {