forked from OSchip/llvm-project
edc60376ed
We use gep to access the global array "switch.table", and the table index should be treated as unsigned. When the highest bit is 1, this commit zero-extends the index to an integer type with larger size. For a switch on i2, we used to generate: %switch.tableidx = sub i2 %0, -2 getelementptr inbounds [4 x i64]* @switch.table, i32 0, i2 %switch.tableidx It is incorrect when %switch.tableidx is 2 or 3. The fix is to generate %switch.tableidx = sub i2 %0, -2 %switch.tableidx.zext = zext i2 %switch.tableidx to i3 getelementptr inbounds [4 x i64]* @switch.table, i32 0, i3 %switch.tableidx.zext rdar://17735071 llvm-svn: 213815 |
||
|---|---|---|
| .. | ||
| 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.