dotnet/runtime

Consider adding a stress mode which prefers registers with different encoding characteristics

Open

#10.647 aberto em 9 de jul. de 2018

Ver no GitHub
 (1 comment) (1 reaction) (0 assignees)C# (5.445 forks)batch import
area-CodeGen-coreclrhelp wantedtest-enhancement

Métricas do repositório

Stars
 (17.886 stars)
Métricas de merge de PR
 (Mesclagem média 12d 11h) (661 fundiu PRs em 30d)

Description

On various architectures there exist registers that require different encoding characteristics. For example, on x64 there are additional registers available (R8-R15 and XMM8-XMM15), which require the use of the REX prefix (or a VEX-encoded instruction).

Given that these change how the instruction is encoded, it would be beneficial if there was a stress-mode that would prefer these registers in order to help validate that the emitter has them properly handled.

category:testing theme:register-allocator skill-level:beginner cost:small

Guia do colaborador