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Implement RDNA2 per-invocation scratch memory

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This commit is contained in:
Senaxx
2026-08-19 17:32:55 +02:00
committed by nmzik
parent 2db0b3cfa7
commit 56a15c2036
20 changed files with 184 additions and 53 deletions
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tests/shaderCfgTests.cpp
+26 -7
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@@ -11059,6 +11059,22 @@ void TestComputeLdsAllocationIdentity() {
ShaderGetIdCS(regs, lds_896, true),
"compute pipeline identity omitted the LDS allocation");
mapped.scratch_size_dwords = 7;
ShaderMapUserData(regs.cs_regs.data_addr, mapped);
regs.cs_regs.lds_size = decode_lds_field(lds_896_rsrc2);
ShaderComputeInputInfo scratch_info{};
std::span<const uint32_t> scratch_spirv;
Check(ShaderCompileInfoCS(regs, sh, scratch_info, scratch_spirv),
"compute scratch metadata shader did not compile");
Check(scratch_info.scratch_size_dwords == 7,
"AGC per-thread scratch size was not propagated");
Check(scratch_info.stage.program != nullptr &&
scratch_info.stage.program->scratch_dwords == 7,
"AGC per-thread scratch size did not reach the compiler program");
Check(ShaderGetIdCS(regs, scratch_info, true) !=
ShaderGetIdCS(regs, lds_896, true),
"compute pipeline identity omitted the scratch allocation");
const uint32_t append_shader[] = {
EncodeSMovB32(124, 132), // m0 = 4 bytes
EncodeDs0(0x3e),
@@ -11217,18 +11233,21 @@ void TestNewShaderRecompilerFlatAddressProvenanceBoundaries() {
options.user_data = user_data;
options.user_data_count = static_cast<uint32_t>(std::size(user_data));
options.flat_memory_base = 0;
options.scratch_dwords = 1;
ShaderRecompiler::CompileResult result;
std::string error;
const bool compiled =
ShaderRecompiler::TryRecompile(segmented_shader, options, result, &error);
Check(compiled, error.c_str());
Check(result.program.info.addresses.size() == 2,
"segmented address resources were not tracked independently");
for (const auto &address : result.program.info.addresses) {
Check(
address.unbased && address.source == UINT32_MAX,
"GLOBAL/SCRATCH null-SADDR incorrectly inherited FLAT VGPR provenance");
}
Check(result.program.info.addresses.size() == 1 &&
result.program.info.addresses[0].kind ==
ShaderRecompiler::IR::ResourceKind::Global &&
result.program.info.addresses[0].unbased &&
result.program.info.addresses[0].source == UINT32_MAX,
"GLOBAL null-SADDR did not remain an unbased guest address");
Check(Common::ContainsStr(result.ir_dump, "GetScratchResource") &&
result.program.scratch_dwords == 1,
"SCRATCH incorrectly entered guest address tracking");
}
void TestNewShaderRecompilerSpirvSizeBaselines() {