forked from OSchip/llvm-project
2e58010208
isMemTerminator checks if the current def is a memory terminator that terminates the memory pointed to by DefLoc. We do not have to add any of their users to the worklist, because the follow-on users cannot read the memory in question. This leads to more stores eliminated in the presence of lifetime calls. Previously we added the users of those intrinsics to the worklist, limiting elimination. In terms of removed stores, this gives a nice boost on some benchmarks (MultiSource/SPEC2000/SPEC2006 on X86 with -flto -O3): Same hash: 205 (filtered out) Remaining: 32 Metric: dse.NumFastStores Program base patch diff test-suite...000/197.parser/197.parser.test 4.00 8.00 100.0% test-suite...rolangs-C++/family/family.test 4.00 7.00 75.0% test-suite...marks/7zip/7zip-benchmark.test 1722.00 2189.00 27.1% test-suite...CFP2000/177.mesa/177.mesa.test 30.00 38.00 26.7% test-suite :: External/Nurbs/nurbs.test 44.00 49.00 11.4% test-suite...lications/sqlite3/sqlite3.test 115.00 128.00 11.3% test-suite...006/447.dealII/447.dealII.test 2715.00 3013.00 11.0% test-suite...ProxyApps-C++/CLAMR/CLAMR.test 237.00 261.00 10.1% test-suite...tions/lambda-0.1.3/lambda.test 40.00 44.00 10.0% test-suite...3.xalancbmk/483.xalancbmk.test 1366.00 1475.00 8.0% test-suite...abench/jpeg/jpeg-6a/cjpeg.test 13.00 14.00 7.7% test-suite...oxyApps-C++/miniFE/miniFE.test 43.00 46.00 7.0% test-suite...lications/ClamAV/clamscan.test 230.00 246.00 7.0% test-suite...006/450.soplex/450.soplex.test 284.00 299.00 5.3% test-suite...nsumer-jpeg/consumer-jpeg.test 21.00 22.00 4.8% |
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| .. | ||
| Analysis | ||
| AsmParser | ||
| BinaryFormat | ||
| Bitcode | ||
| Bitstream | ||
| CodeGen | ||
| DWARFLinker | ||
| DebugInfo | ||
| Demangle | ||
| ExecutionEngine | ||
| Extensions | ||
| FileCheck | ||
| Frontend | ||
| FuzzMutate | ||
| Fuzzer | ||
| IR | ||
| IRReader | ||
| InterfaceStub | ||
| LTO | ||
| LineEditor | ||
| Linker | ||
| MC | ||
| MCA | ||
| Object | ||
| ObjectYAML | ||
| Option | ||
| Passes | ||
| ProfileData | ||
| Remarks | ||
| Support | ||
| TableGen | ||
| Target | ||
| Testing | ||
| TextAPI | ||
| ToolDrivers | ||
| Transforms | ||
| WindowsManifest | ||
| XRay | ||
| CMakeLists.txt | ||
| LLVMBuild.txt | ||