5bb87b6769
This time the issue is fortunately just a simple mistake rather than a horrible design spectre. I thought SUBS/SBCS provided sufficient NZCV flags for comparing two 64-bit values, but they don't. The fix is slightly clunkier in AArch64 because we can't use conditional execution to emit a pair of CMPs. Traditionally an "icmp ne i128" would map to an EOR/EOR/ORR/CBNZ, but that uses more registers so it's easier to go with a CSET/CINC/CBNZ combination. Slightly less efficient, but this is -O0 anyway. Thanks to Anton Korobeynikov for pointing out the issue. llvm-svn: 288418 |
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| include | ||
| lib | ||
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| runtimes | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| .arcconfig | ||
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| CODE_OWNERS.TXT | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| LLVMBuild.txt | ||
| README.txt | ||
| RELEASE_TESTERS.TXT | ||
| configure | ||
| llvm.spec.in | ||
README.txt
Low Level Virtual Machine (LLVM) ================================ 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.