mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 04:32:44 +01:00
Mirror of https://github.com/RPCS3/llvm-mirror
30fb60dd84
This patch extends the various "isXXX" functions of the `Constant` class to include scalable-vector splats. In several "isXXX" functions, code that was separately inspecting `ConstantVector` and `ConstantDataVector` was unified to use `getSplatValue`, which already includes support for said splats. In the varous "isNotXXX" functions, code was added to check whether the scalar splat value -- if any -- satisfies the predicate. An extra fix for `isNotMinSignedValue` was included, as it previously crashed when passed a scalable-vector type because it unconditionally cast to `FixedVectorType` These changes address numerous missed optimizations, a compiler crash mentioned above and -- perhaps most egregiously -- an infinite loop in InstCombine due to the compiler breaking canonical form when it failed to pick up on a splat in a select instruction. Test cases have been added to cover as many of these functions as possible, though existing coverage is slim; it doesn't appear that there are any in-tree uses of `Constant::isNegativeZeroValue`, for example. Reviewed By: RKSimon Differential Revision: https://reviews.llvm.org/D103421 |
||
|---|---|---|
| benchmarks | ||
| bindings | ||
| cmake | ||
| docs | ||
| examples | ||
| include | ||
| lib | ||
| projects | ||
| resources | ||
| runtimes | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitattributes | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| configure | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| llvm.spec.in | ||
| README.txt | ||
| RELEASE_TESTERS.TXT | ||
The LLVM Compiler Infrastructure ================================ This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the documentation provided in docs/ for further assistance with LLVM, and in particular docs/GettingStarted.rst for getting started with LLVM and docs/README.txt for an overview of LLVM's documentation setup. If you are writing a package for LLVM, see docs/Packaging.rst for our suggestions.