forked from OSchip/llvm-project
974e2e690b
Although i32 type is illegal in the backend, RV64I has pretty good support for i32 types by using W instructions. By adding n32 to the DataLayout string, middle end optimizations will consider i32 to be a native type. One known effect of this is enabling LoopStrengthReduce on loops with i32 induction variables. This can be beneficial because C/C++ code often has loops with i32 induction variables due to the use of `int` or `unsigned int`. If this patch exposes performance issues, those are better addressed by tuning LSR or other passes. Reviewed By: asb, frasercrmck Differential Revision: https://reviews.llvm.org/D116735 |
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| .. | ||
| BitReaderTest.cpp | ||
| CMakeLists.txt | ||
| DataLayoutUpgradeTest.cpp | ||