forked from OSchip/llvm-project
946b1246d6
Other opcodes shouldn't be CSE'd until we can be sure debug info quality won't be degraded. This change also improves the IRTranslator so that in most places, but not all, it creates constants using the MIRBuilder directly instead of first creating a new destination vreg and then creating a constant. By doing this, the buildConstant() method can just return the vreg of an existing G_CONSTANT instead of having to create a COPY from it. I measured a 0.2% improvement in compile time and a 0.9% improvement in code size at -O0 ARM64. Compile time: Program base cse diff test-suite...ark/tramp3d-v4/tramp3d-v4.test 9.04 9.12 0.8% test-suite...Mark/mafft/pairlocalalign.test 2.68 2.66 -0.7% test-suite...-typeset/consumer-typeset.test 5.53 5.51 -0.4% test-suite :: CTMark/lencod/lencod.test 5.30 5.28 -0.3% test-suite :: CTMark/Bullet/bullet.test 25.82 25.76 -0.2% test-suite...:: CTMark/ClamAV/clamscan.test 6.92 6.90 -0.2% test-suite...TMark/7zip/7zip-benchmark.test 34.24 34.17 -0.2% test-suite :: CTMark/SPASS/SPASS.test 6.25 6.24 -0.1% test-suite...:: CTMark/sqlite3/sqlite3.test 1.66 1.66 -0.1% test-suite :: CTMark/kimwitu++/kc.test 13.61 13.60 -0.0% Geomean difference -0.2% Code size: Program base cse diff test-suite...-typeset/consumer-typeset.test 1315632 1266480 -3.7% test-suite...:: CTMark/ClamAV/clamscan.test 1313892 1297508 -1.2% test-suite :: CTMark/lencod/lencod.test 1439504 1423112 -1.1% test-suite...TMark/7zip/7zip-benchmark.test 2936980 2904172 -1.1% test-suite :: CTMark/Bullet/bullet.test 3478276 3445460 -0.9% test-suite...ark/tramp3d-v4/tramp3d-v4.test 8082868 |
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| .. | ||
| instruction-select | ||
| irtranslator | ||
| legalizer | ||
| llvm-ir | ||
| mips-prelegalizer-combiner | ||
| regbankselect | ||