https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: dev-util/intel-graphics-compiler-1.0.4111 fails to compile. Discovered on: amd64 (internal ref: tinderbox) NOTE: This machine uses a clang/LLVM toolchain. If you think that this issue is strictly related to clang/LLVM please block bug 408963. If you think that this issue is strictly related to the LLD linker, please block bug 731004. This machine uses also GLIBC-2.32. If you think that this issue is strictly related to GLIBC please block bug 736174.
Created attachment 656590 [details] build.log build log and emerge --info
Created attachment 656592 [details] 1-CMakeOutput.log 1-CMakeOutput.log
This appears to be a known issue, although interestingly enough the FreeBSD people who reported it said all 10.0 versions are affected and I have never (including just a moment ago) had any problems with 10.0.0 here. The upstream issue remains open and even if any newer IGC versions were not affected, they all require mem2reg functionality in SPIRV-LLVM-Translator which currently is not included in any official releases of the latter (and I have yet to see a VCS snapshot including this feature pass all tests). Therefore, looks like we'll have to cap supported LLVM versions for now.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f3b28ac432fc57cb3b82678279359f8d5d2ae5ca commit f3b28ac432fc57cb3b82678279359f8d5d2ae5ca Author: Marek Szuba <marecki@gentoo.org> AuthorDate: 2020-08-25 13:51:40 +0000 Commit: Marek Szuba <marecki@gentoo.org> CommitDate: 2020-08-25 14:10:04 +0000 dev-util/intel-graphics-compiler: block llvm-10.0.1 Causes compilation errors. Closes: https://bugs.gentoo.org/738934 Signed-off-by: Marek Szuba <marecki@gentoo.org> .../intel-graphics-compiler/intel-graphics-compiler-1.0.4111.ebuild | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
I don't think the resolution to this is correct. Both the OP, and the linked github issue specifically mention _building_ with clang-10 rather than just linking to it. igc-1.0.4111 works OK with llvm/clang-10.0.1 when gcc is used as system compiler.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=6cbc8a7b3d4ef1ff93eaedfb2ea1b77acf002ec5 commit 6cbc8a7b3d4ef1ff93eaedfb2ea1b77acf002ec5 Author: Marek Szuba <marecki@gentoo.org> AuthorDate: 2020-09-20 14:25:32 +0000 Commit: Marek Szuba <marecki@gentoo.org> CommitDate: 2020-09-20 14:33:59 +0000 dev-util/intel-graphics-compiler-1.0.4111: only block llvm-10 in TC Turns out this version is not going anywhere any time soon, in fact there is a stablereq for it now - so let's handle this properly. Specifically, pkg_pretend() now dies if the current compiler is clang-10+ (I think it is safe to assume that if 10 does not work nor will the newer versions). Bug: https://bugs.gentoo.org/738934 Signed-off-by: Marek Szuba <marecki@gentoo.org> .../intel-graphics-compiler-1.0.4111.ebuild | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)
