What is the actual LLVM11 version downloaded from apt.llvm.org?

Sidorov_Dmitry · January 25, 2021, 9:39am

Hi,

We are doing SPIR-V to LLVM IR translator as LLVM dependent project. It has a llvm 11 release branch, on which CI downloads LLVM 11 from apt.llvm.org. Recently LLVM 11.0.1 was released and we started getting an error: https://travis-ci.com/github/KhronosGroup/SPIRV-LLVM-Translator/jobs/472611318#L484 . But error says, that expected version isn’t 11.0.1, but 11.1.0 instead. Is it apt.llvm.org bug or is it expected due to the upcoming release?

-Dmitry Sidorov

banach-space · January 25, 2021, 6:02pm

I believe that this is a packaging bug:
* 48772 – Ubuntu package set as LLVM 11.1.0, but LLVM 11.1.0 not yet released.

I also have a downstream project that was affected by this. Here's my naive workaround:

github.com/banach-space/llvm-tutor

[CMake] Add a workaround for #25

committed 11:36AM - 16 Jan 21 UTC

banach-space

+10 -2

Because of the problem reported in #25, on Ubuntu Bionic we can't just request L…LVM 11.0.0 (or LLVM 11.0.1) with `find_package`. Instead, we jsut add an extra check to make sure that LLVM's major version is indeed 11. llvm-tutor will happily work with both LLVM 11.1.0 and LLVM 11.0.1. However, on Darwin there's only LLVM 11.0.0 and on Ubuntu Bionic only LLVM 11.1.0. So either we use: * find_package(LLVM 11.0.0 REQUIRED CONFIG) on Darwin * find_package(LLVM 11.1.0 REQUIRED CONFIG) on Ubuntu Bionic or, we opt in for the solution implemented in this patch. Both are just workarounds.

-Andrzej