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Posted to issues-all@impala.apache.org by "Bikramjeet Vig (JIRA)" <ji...@apache.org> on 2018/07/06 23:22:00 UTC

[jira] [Assigned] (IMPALA-6299) IRBuilder codegen should using LLVMCodeGen::cpu_attrs instead of CpuInfo to determine valid instructions

     [ https://issues.apache.org/jira/browse/IMPALA-6299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bikramjeet Vig reassigned IMPALA-6299:
--------------------------------------

    Assignee: Pooja Nilangekar

> IRBuilder codegen should using LLVMCodeGen::cpu_attrs instead of CpuInfo to determine valid instructions
> --------------------------------------------------------------------------------------------------------
>
>                 Key: IMPALA-6299
>                 URL: https://issues.apache.org/jira/browse/IMPALA-6299
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>            Reporter: Tim Armstrong
>            Assignee: Pooja Nilangekar
>            Priority: Major
>              Labels: codegen, newbie
>
> This came out of a discussion on this code review: https://gerrit.cloudera.org/#/c/8802/
> The idea is that IRBuilder code that emits intrinsics should only do so if we have those CPU features enabled in LLVM. Otherwise codegen will fail to compile the emitted instructions.



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