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Merge pull request #2995 from ReinUsesLisp/ignore-gmem

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shader_ir/memory: Ignore global memory when tracking fails
This commit is contained in:
Fernando Sahmkow 2019-10-22 13:22:43 -04:00 committed by GitHub
commit c4a0aa9207
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 26 additions and 18 deletions
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39
src/video_core/shader/decode/memory.cpp
View file

@ -166,9 +166,17 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
}();
const auto [real_address_base, base_address, descriptor] =
TrackAndGetGlobalMemory(bb, instr, false);
TrackGlobalMemory(bb, instr, false);
const u32 count = GetUniformTypeElementsCount(type);
if (!real_address_base || !base_address) {
// Tracking failed, load zeroes.
for (u32 i = 0; i < count; ++i) {
SetRegister(bb, instr.gpr0.Value() + i, Immediate(0.0f));
}
break;
}
for (u32 i = 0; i < count; ++i) {
const Node it_offset = Immediate(i * 4);
const Node real_address =
@ -260,22 +268,19 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
}();
const auto [real_address_base, base_address, descriptor] =
TrackAndGetGlobalMemory(bb, instr, true);
// Encode in temporary registers like this: real_base_address, {registers_to_be_written...}
SetTemporary(bb, 0, real_address_base);
TrackGlobalMemory(bb, instr, true);
if (!real_address_base || !base_address) {
// Tracking failed, skip the store.
break;
}
const u32 count = GetUniformTypeElementsCount(type);
for (u32 i = 0; i < count; ++i) {
SetTemporary(bb, i + 1, GetRegister(instr.gpr0.Value() + i));
}
for (u32 i = 0; i < count; ++i) {
const Node it_offset = Immediate(i * 4);
const Node real_address =
Operation(OperationCode::UAdd, NO_PRECISE, real_address_base, it_offset);
const Node real_address = Operation(OperationCode::UAdd, real_address_base, it_offset);
const Node gmem = MakeNode<GmemNode>(real_address, base_address, descriptor);
bb.push_back(Operation(OperationCode::Assign, gmem, GetTemporary(i + 1)));
const Node value = GetRegister(instr.gpr0.Value() + i);
bb.push_back(Operation(OperationCode::Assign, gmem, value));
}
break;
}
@ -301,15 +306,17 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
return pc;
}
std::tuple<Node, Node, GlobalMemoryBase> ShaderIR::TrackAndGetGlobalMemory(NodeBlock& bb,
Instruction instr,
bool is_write) {
std::tuple<Node, Node, GlobalMemoryBase> ShaderIR::TrackGlobalMemory(NodeBlock& bb,
Instruction instr,
bool is_write) {
const auto addr_register{GetRegister(instr.gmem.gpr)};
const auto immediate_offset{static_cast<u32>(instr.gmem.offset)};
const auto [base_address, index, offset] =
TrackCbuf(addr_register, global_code, static_cast<s64>(global_code.size()));
ASSERT(base_address != nullptr);
ASSERT_OR_EXECUTE_MSG(base_address != nullptr,
{ return std::make_tuple(nullptr, nullptr, GlobalMemoryBase{}); },
"Global memory tracking failed");
bb.push_back(Comment(fmt::format("Base address is c[0x{:x}][0x{:x}]", index, offset)));

5
src/video_core/shader/shader_ir.h
View file

@ -371,8 +371,9 @@ private:
std::pair<Node, s64> TrackRegister(const GprNode* tracked, const NodeBlock& code,
s64 cursor) const;
std::tuple<Node, Node, GlobalMemoryBase> TrackAndGetGlobalMemory(
NodeBlock& bb, Tegra::Shader::Instruction instr, bool is_write);
std::tuple<Node, Node, GlobalMemoryBase> TrackGlobalMemory(NodeBlock& bb,
Tegra::Shader::Instruction instr,
bool is_write);
const ProgramCode& program_code;
const u32 main_offset;