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test(recompiler): check that APS5_NO_PERF_DISK_PLANS=1 is cache-neutral 

APS5_NO_PERF_DISK_PLANS=1 is listed as a neutral switch, so it stays out
of the variant key, and it exists to compare warm starts with and
without stored plans. Nothing tested either property: the cross-process
test ran with the switch unset only.

A fourth child process now sets the switch against the cache the first
process filled. It must run the front end for all 14 fixtures, neither
load nor store a plan, still hit all 14 stored variants, and produce the
same SPIR-V, bindings, push constants, snapshots, read traces and plans
as the first process.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Niko 2026-10-13 02:49:37 +02:00
parent a69f5e0371
commit 70663fec42
1 changed files with 6 additions and 0 deletions
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6
core/libs/prx/libSceAgcDriver/tests/ShaderDiskCache.cpp
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@ -1732,6 +1732,7 @@ std::filesystem::path planEntryPath(PlanFixture& fixture) {
int runPlanLoadingProcess(std::string_view mode) {
if (mode == "--load-plan-switch") setEnvironment("APS5_TRACE_BINDLESS", "1");
if (mode == "--load-plan-off") setEnvironment("APS5_NO_PERF_DISK_PLANS", "1");
auto fixtures = planFixtures();
const auto count = fixtures.size();
std::vector<std::shared_ptr<const IrResourcePlan>> plans;
@ -1747,6 +1748,8 @@ int runPlanLoadingProcess(std::string_view mode) {
}
if (mode == "--load-plan") {
require(builds == 0u && totals.planHits == count && totals.planMisses == 0u && totals.planLoadFailures == 0u && totals.hits == count && totals.misses == 0u, "the second process ran the front end" + counts);
} else if (mode == "--load-plan-off") {
require(builds == count && totals.planHits == 0u && totals.planMisses == 0u && totals.planWrites == 0u && totals.hits == count && totals.misses == 0u, "APS5_NO_PERF_DISK_PLANS=1 used the stored plans or missed the stored variants" + counts);
} else {
require(builds == 1u && totals.planHits == count - 1u && totals.planLoadFailures == 1u && totals.planWrites == 1u && totals.hits == count && totals.misses == 0u, "the damaged plan was not rejected and rebuilt alone" + counts);
}
@ -1764,6 +1767,8 @@ int runPlanLoadingProcess(std::string_view mode) {
const auto after = ShaderDiskCache::Totals();
require(FrontEndBuilds() == 1u && after.planHits == count && after.planMisses == 1u, "a changed code word reused a stored plan");
std::cout << "second process prepared " << count << " shaders from stored plans without running the front end\n";
} else if (mode == "--load-plan-off") {
std::cout << "APS5_NO_PERF_DISK_PLANS=1 ran the front end for all " << count << " shaders with the same output\n";
} else {
std::cout << "a damaged plan entry was rejected, rebuilt and stored again with the same output\n";
}
@ -1804,6 +1809,7 @@ void verifyPlanAcrossProcesses(const char* self) {
require(std::system(command.c_str()) == 0, std::string("the process ") + mode + " failed");
};
run("--load-plan");
run("--load-plan-off");
std::vector<std::byte> entry;
const auto damaged = planEntryPath(fixtures.front());
require(ReadWholeFile(damaged, entry), "cannot read a stored plan entry");