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shader: factor live execution guards before resource planning

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This commit is contained in:
nmzik
2026-10-13 01:03:46 +02:00
parent 2f88a0a3b2
commit c9ec82e32e
4 changed files with 65 additions and 17 deletions
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tests/ResourceTrackingTests.cpp
+24 -7
View File
@@ -566,10 +566,11 @@ void TestGuardedDirectImageTable() {
Bounded, BoundMissing, BoundUnrelated, BoundBypass, BoundAnyLane,
BoundDiamond, BoundBranchSpecific, BoundMismatched,
BoundExec, BoundExecUnguarded, BoundExecMismatched, BoundExecAnd, BoundExecUnprovenActive,
BoundExecFactored,
Finite, FiniteZero, FiniteMissing, FiniteWrong, FiniteSigned, FiniteAdd, FiniteXor,
FiniteShared, FiniteSharedBypass, FiniteLate
};
const auto make_plan = [](Guard guard) {
const auto make_plan = [](Guard guard, uint32_t operand_order = 0u) {
const bool finite = guard >= Guard::Finite;
const bool bounded = guard >= Guard::Bounded && !finite;
const bool exec_bound = bounded && guard >= Guard::BoundExec;
@@ -650,8 +651,19 @@ void TestGuardedDirectImageTable() {
? ValueOpcode::BitwiseAnd32 : ValueOpcode::BitwiseOr32, {encoded, varying});
const auto retained = fixture.Emit(ValueOpcode::SelectU32,
{previous, stopped, Value(0u)});
const auto vcc = fixture.Emit(ValueOpcode::LogicalAnd, {previous,
fixture.Emit(ValueOpcode::INotEqual32, {retained, Value(0u)})});
const auto stopped_lane = fixture.Emit(ValueOpcode::INotEqual32, {retained, Value(0u)});
auto vcc = fixture.Emit(ValueOpcode::LogicalAnd,
operand_order & 1u ? std::initializer_list<Value>{stopped_lane, previous}
: std::initializer_list<Value>{previous, stopped_lane});
if (guard == Guard::BoundExecFactored) {
const auto empty = fixture.Emit(ValueOpcode::IEqual32, {key, Value(UINT32_MAX)});
const auto sentinel = fixture.Emit(ValueOpcode::LogicalAnd,
operand_order & 2u ? std::initializer_list<Value>{empty, previous}
: std::initializer_list<Value>{previous, empty});
vcc = fixture.Emit(ValueOpcode::LogicalOr,
operand_order & 4u ? std::initializer_list<Value>{sentinel, vcc}
: std::initializer_list<Value>{vcc, sentinel});
}
const auto remaining = fixture.Emit(ValueOpcode::LogicalNot, {vcc});
active = guard == Guard::BoundExecUnprovenActive ? remaining
: fixture.Emit(ValueOpcode::LogicalAnd, {previous, remaining});
@@ -799,10 +811,12 @@ void TestGuardedDirectImageTable() {
fixture.AddMemory(memory, 0x130));
}
if (exec_bound) ConstantPropagationPass(fixture.program.blocks);
if (guard == Guard::BoundExec) {
if (guard == Guard::BoundExec || guard == Guard::BoundExecFactored) {
std::vector<const Inst *> pending{active.ResolveInstruction()};
uint32_t conjunctions = 0;
for (size_t index = 0; index < pending.size(); ++index) {
const auto *inst = pending[index];
conjunctions += inst->GetOpcode() == ValueOpcode::LogicalAnd;
Check(inst->GetOpcode() != ValueOpcode::SelectU32 &&
inst->GetOpcode() != ValueOpcode::BitwiseOr32,
"EXEC bound retained its integer Boolean encoding");
@@ -812,6 +826,7 @@ void TestGuardedDirectImageTable() {
pending.push_back(operand);
}
}
Check(conjunctions == 1u, "EXEC bound retained repeated active-lane conjunctions");
}
fixture.PlanAndTrack();
const auto source = fixture.program.info.images[0].source;
@@ -829,6 +844,7 @@ void TestGuardedDirectImageTable() {
auto plan = make_plan(Guard::Nonzero);
make_plan(Guard::SccNonZero);
make_plan(Guard::Plain);
for (uint32_t order = 0; order < 8u; ++order) make_plan(Guard::BoundExecFactored, order);
for (const auto guard : {Guard::Zero, Guard::Unrelated, Guard::Bypass,
Guard::ExecZero, Guard::VccZero, Guard::BoundMissing,
Guard::BoundUnrelated, Guard::BoundBypass, Guard::BoundAnyLane,
@@ -914,13 +930,14 @@ void TestGuardedDirectImageTable() {
"batched descriptor read crossed the 48-bit endpoint");
make_plan(Guard::Bounded);
for (const auto guard : {Guard::BoundDiamond, Guard::BoundExec}) {
for (const auto guard : {Guard::BoundDiamond, Guard::BoundExec, Guard::BoundExecFactored}) {
auto bounded = make_plan(guard);
Check(bounded.capture_specialization_reads && bounded.info.images[1].written,
"bounded table with image writes omitted specialization read capture");
LinearTestMemory records;
const uint32_t record_offset = guard == Guard::BoundExec ? 672u : 3696u;
const uint32_t record_stride = guard == Guard::BoundExec ? 784u : 272u;
const bool exec_bound = guard != Guard::BoundDiamond;
const uint32_t record_offset = exec_bound ? 672u : 3696u;
const uint32_t record_stride = exec_bound ? 784u : 272u;
for (uint32_t key = 0; key < 2u; ++key) {
const auto word = (record_offset + key * record_stride) / 4u;
records.words[word] = 0x500u + key;
tests/ShaderRecompilerComputeTests.cpp
+5 -1
View File
@@ -36569,8 +36569,11 @@ void CheckGuardedRecordImageTable(VulkanHarness &vulkan) {
EncodeSop1(0x04, 126, 28)});
code.push_back(EncodeSopc(0x09, 22, 21));
if (masked) code.insert(code.end(), {
EncodeVopc(0xc2, 249, 22), // Mask the FF1 sentinel into s2:s3.
EncodeVopcSdwa(193, 2, 1, 6, 6, 0, 0, 0, 0, 0, 0, 1, 1),
EncodeVop2(0x1c, 10, 253, 13), // SCC encoded as 0/1, OR per-lane done.
EncodeVopc(0xc5, InlineU32(0), 10),
EncodeSop2(0x11, 106, 106, 2),
EncodeSop2(0x15, 126, 28, 106)});
range_exit = code.size(); code.push_back(0u);
}
@@ -36621,7 +36624,8 @@ void CheckGuardedRecordImageTable(VulkanHarness &vulkan) {
else test.opcodes.insert(test.opcodes.end(), {O::S_CMP_GE_U32, O::S_CBRANCH_SCC1,
O::S_BITCMP1_B32});
if (masked) test.opcodes.insert(test.opcodes.end(), {O::S_CSELECT_B64,
O::V_OR_B32, O::V_CMP_NE_U32, O::S_ANDN2_B64, O::S_CBRANCH_EXECZ});
O::V_CMP_EQ_U32, O::V_OR_B32, O::V_CMP_NE_U32, O::S_OR_B64,
O::S_ANDN2_B64, O::S_CBRANCH_EXECZ});
test.opcodes.insert(test.opcodes.end(), {O::S_MOV_B64, O::V_ADD_NC_U32});
auto compiled = CompileCase(test, vulkan.SubgroupSize());
const auto sampled_count = std::ranges::count_if(compiled.program.info.images,