In the last blog of our trilogy about test generators, we’ll explain Tempest2. You might have seen it mentioned in a previous blog but now we show additional perspectives. On the face of it, Tempest2 may look a lot like our original Tempest generator. In reality,...
Compilers are highly complex machines with two areas that deserve extra scrutiny. They are the register allocator and the calling convention. While register allocation is the subject of countless research papers, the calling convention is considered part of the...
The size of integers and other primitive types is not fixed by the C/C++ programming language specifications. It is implementation-defined. Unlike unspecified and undefined behavior, that is not a free lunch for the compiler. Implementation-defined behavior has to be...
The traditional industrial robot consists of an arm with multiple degrees of freedom and a specialized gripper. To prevent accidental injury to humans, it is typically incarcerated in a protective cage. However, next-generation robots are already enjoying their...
As we pointed out in the previous blog, before we qualify a compiler for a safety-critical project, it’s essential we know all the compiler options that the project intends to use. With typical projects being highly complex, like a tower of babel with complicated...
Compilers comprise a complex pipeline of analysis and transformation stages. Changes in one stage are frequently amplified by subsequent stages. It makes compilers very sensitive to configuration, with a seemingly minor change to the compiler’s configuration options...
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