forked from OSchip/llvm-project
4f1a54a41a
Currently instructions are folded very aggressively for AArch64 into the memory operation, which can lead to the use of killed operands: %vreg1<def> = ADDXri %vreg0<kill>, 2 %vreg2<def> = LDRBBui %vreg0, 2 ... = ... %vreg1 ... This usually happens when the result is also used by another non-memory instruction in the same basic block, or any instruction in another basic block. This fix teaches hasTrivialKill to not only check the LLVM IR that the value has a single use, but also to check if the register that represents that value has already been used. This can happen when the instruction with the use was folded into another instruction (in this particular case a load instruction). This fixes rdar://problem/18142857. llvm-svn: 216634 |
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| autoconf | ||
| bindings | ||
| cmake | ||
| docs | ||
| examples | ||
| include | ||
| lib | ||
| projects | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| .arcconfig | ||
| .clang-format | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| LLVMBuild.txt | ||
| Makefile | ||
| Makefile.common | ||
| Makefile.config.in | ||
| Makefile.rules | ||
| 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.