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shader: keep scalar payload and terminal conditions on the GPU

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This commit is contained in:
nmzik
2026-10-09 15:14:04 +02:00
parent 3b1a94707a
commit 5b68a26cce
5 changed files with 152 additions and 23 deletions
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tests/ResourceMaterializationTests.cpp
+17 -2
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@@ -435,7 +435,7 @@ void TestUnbasedFlatCacheHitMaterializes() {
"unbased FLAT plan produced unexpected descriptors");
}
void TestWrittenDescriptorPredicateReads(bool memory_condition) {
void TestWrittenDescriptorPredicateReads(bool memory_condition, bool loop) {
using namespace Libs::Graphics::ShaderRecompiler::IR;
Program program;
program.stage = Libs::Graphics::ShaderType::Compute;
@@ -467,12 +467,26 @@ void TestWrittenDescriptorPredicateReads(bool memory_condition) {
Libs::Graphics::ShaderRecompiler::CFG::TerminatorKind::ConditionalBranch;
program.blocks[0]->terminator.true_block = program.blocks[1];
program.blocks[0]->terminator.false_block = program.blocks[2];
program.blocks[1]->id = 1;
program.blocks[1]->terminator.kind =
Libs::Graphics::ShaderRecompiler::CFG::TerminatorKind::Return;
program.blocks[2]->id = 2;
program.blocks[2]->terminator.kind =
Libs::Graphics::ShaderRecompiler::CFG::TerminatorKind::Return;
if (loop) {
// The predicate reaches the store through a continue block, then loops back.
auto &continued = AddValueBlock(program);
program.blocks[0]->terminator.true_block = &continued;
continued.terminator.kind = Libs::Graphics::ShaderRecompiler::CFG::TerminatorKind::Branch;
continued.terminator.true_block = &store_block;
continued.AddBranch(&store_block);
store_block.terminator.kind = Libs::Graphics::ShaderRecompiler::CFG::TerminatorKind::Branch;
store_block.terminator.true_block = █
store_block.AddBranch(&block);
}
block.AddBranch(program.blocks[0]->terminator.true_block);
block.AddBranch(program.blocks[2]);
program.memory_info.push_back({.kind = ResourceKind::Buffer, .resource = 0});
auto &output = store_block.AppendNewInst(ValueOpcode::GetBufferResource,
{source.dwords[0], source.dwords[1], source.dwords[2], source.dwords[3]});
@@ -677,7 +691,8 @@ int main() {
TestExactReciprocalDescriptorArithmetic();
TestUnbasedFlatCacheHitMaterializes();
for (const bool memory_condition : {false, true})
TestWrittenDescriptorPredicateReads(memory_condition);
for (const bool loop : {false, true})
TestWrittenDescriptorPredicateReads(memory_condition, loop);
TestFailedMaterializationRejectsStage();
TestFiniteImageRefreshReusesScalarReads();
TestMixedSamplerVariantsShareRuntimeDescriptor();