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* Type Based Alias Analysis (TBAA) is now implemented and turned on by default in Clang. This allows substantially better load/store optimization in some cases. TBAA can be disabled by passing -fno-strict-aliasing. * This release has seen a continued focus on quality of debug information. LLVM now generates much higher fidelity debug information, particularly when debugging optimized code. * Inline assembly now supports multiple alternative constraints. * A new backend for the NVIDIA PTX virtual ISA (used to target its GPUs) is under rapid development. It is not generally useful in 2.9, but is making rapid progress. |
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