[llvm-dev] Major release of xocc C compiler, 0.9.2, based on BSD license!

Michael Kruse via llvm-dev llvm-dev at lists.llvm.org
Mon Jun 10 09:04:09 PDT 2019

Thank you for sharing!

Regarding xpoly, what kind of analysis/transformation is it capable
of? I could not find an omega-test and mostly unimodular


Am So., 9. Juni 2019 um 13:54 Uhr schrieb steven.known via llvm-dev
<llvm-dev at lists.llvm.org>:
> Hello everybody,
>   I'm glad to announce the major release of xocc C compiler, 0.9.2, based on BSD license.
>   xocc is a C compiler that based on XOC infrastructure, XGEN code generator and XOCFE
>   C frontend.
>   Both xocc, XOC, XGEN, and XOCFE are based on BSD license.
>   XOC provides multi-level operations, flexibility, and the capability of representing almost all popular languages.
>   There are mainly two level IR representations used throughout all phases of the compilation.
>   In addition to basic IR representation, XOC also provides IR builder, BB manipulating api, Control Flow Graph(CFG),
>   IR lowering, Control Dependent Graph, Dominator Tree, Register SSA, Memory SSA, Agressive Flow Sensitive Alias Analysis,
>   Flow Insensitive Alias Analysis, Agressive Field Sensitive Alias Analysis, Interprocedual Analysis Framework, Inliner,
>   Dead Code Elimination, Copy Propagation, GCSE, GVN, and a lot of sophisticated control flow and peephole optimizations.
>   Moveover, XOC does not use any std library, it provides all basic algorithm library such Vector, List, Map, Dense Bitset,
>   Sparse Bitset, Graph, Mempool, Big-Integer, Linear Algebraic library, Linear Programming Solver.
>   XGEN provides a retargetable machine code generator.
>   For now, it could generate ARM, x86, PAC code. But, x86 and PAC code generator are not release for temporary.
>   XGEN provides IR2OR translator, Pre-Instruction-Schedular, Register Allocation, Post-Instruction-Schedular,
>   Instruction Packager and Assembly Printer.
>   XOCFE is a C frontend, it could provide AST as output.
>   xocc is a driver that compose XOCFE, AST2IR, XOC and XGEN into complete C compiler.
>   All features provided by xocc, XOC, XGEN, XOCFE could empower you to develop any compiler and analysis tools.
>   More important is, any feedback on the compiler and its components would be much appreciated!
>   For more details, see:
>   https://github.com/stevenknown/xgen
>   https://github.com/stevenknown/xoc
>   https://github.com/stevenknown/xocfe
>   https://github.com/stevenknown/xpoly
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