forked from OSchip/llvm-project
f5b34e535d
This patch adds 'FeatureSlowSHLD' to 'bdver3'. According to the official AMD optimization guide for amdfam15: "Using alternative code in place of SHLD achieves lower overall latency and requires fewer execution resources. The 32-bit and 64-bit forms of ADD, ADC, SHR, and LEA (except 16-bit form) are DirectPath instructions, while SHLD is a VectorPath instruction." This patch also explicitly sets feature AVX and SSE4A for all the bdver* cpus. This part of the patch is a non-functional change and it is mainly done for clarity reasons (Both XOP and FMA4 already imply AVX and SSE4A). llvm-svn: 221296 |
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| .arcconfig | ||
| .clang-format | ||
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| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
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| LICENSE.TXT | ||
| LLVMBuild.txt | ||
| Makefile | ||
| Makefile.common | ||
| Makefile.config.in | ||
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| README.txt | ||
| configure | ||
| llvm.spec.in | ||
README.txt
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, 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're writing a package for LLVM, see docs/Packaging.rst for our suggestions.