Thanks for the report. Looks like Nathan has reported this, too (as
have Google3 folks):
https://github.com/llvm/llvm-project/commit/fd311126349b8fe1684d62154a9fa5a7bbb0b713#commitcomment-130346081

On Wed, Oct 18, 2023 at 7:31 PM <ci_not...@linaro.org> wrote:
>
> Dear contributor, our automatic CI has detected problems related to your 
> patch(es).  Please find some details below.  If you have any questions, 
> please follow up on linaro-toolchain@lists.linaro.org mailing list, Libera's 
> #linaro-tcwg channel, or ping your favourite Linaro toolchain developer on 
> the usual project channel.
>
> In CI config tcwg_kernel/llvm-master-aarch64-stable-defconfig after:
>
>   | commit llvmorg-18-init-8757-gfd311126349b
>   | Author: Florian Hahn <f...@fhahn.com>
>   | Date:   Tue Oct 17 19:17:40 2023 +0100
>   |
>   |     [VPlan] Insert Trunc/Exts for reductions directly in VPlan.
>   |
>   |     Update the code to create Trunc/Ext recipes directly in
>   |     adjustRecipesForReductions instead of fixing it up later in
>   |     fixReductions.
>   |
>   |     This explicitly models the required conversions and also makes sure 
> they
>   | ... 2 lines of the commit log omitted.
>
> Results changed to
> # reset_artifacts:
> -10
> # build_abe binutils:
> -9
> # build_kernel_llvm:
> -5
> # build_abe qemu:
> -2
> # linux_n_obj:
> 8020
> # First few build errors in logs:
>
> # 00:12:40 clang: error: clang frontend command failed with exit code 134 
> (use -v to see invocation)
> # 00:12:40 make[5]: *** [scripts/Makefile.build:243: 
> drivers/platform/chrome/cros_ec_i2c.o] Error 1
> # 00:13:18 make[4]: *** [scripts/Makefile.build:480: drivers/platform/chrome] 
> Error 2
> # 00:13:18 make[3]: *** [scripts/Makefile.build:480: drivers/platform] Error 2
> # 00:13:37 clang: error: clang frontend command failed with exit code 134 
> (use -v to see invocation)
> # 00:13:37 make[7]: *** [scripts/Makefile.build:243: 
> drivers/net/ethernet/intel/igb/igb_main.o] Error 1
> # 00:13:46 make[6]: *** [scripts/Makefile.build:480: 
> drivers/net/ethernet/intel/igb] Error 2
> # 00:13:53 make[5]: *** [scripts/Makefile.build:480: 
> drivers/net/ethernet/intel] Error 2
> # 00:16:54 make[4]: *** [scripts/Makefile.build:480: drivers/net/ethernet] 
> Error 2
> # 00:16:54 make[3]: *** [scripts/Makefile.build:480: drivers/net] Error 2
>
> From
> # reset_artifacts:
> -10
> # build_abe binutils:
> -9
> # build_kernel_llvm:
> -5
> # build_abe qemu:
> -2
> # linux_n_obj:
> 9166
> # linux build successful:
> all
> # linux boot successful:
> boot
>
> The configuration of this build is:
> CI config tcwg_kernel/llvm-master-aarch64-stable-defconfig
>
> -----------------8<--------------------------8<--------------------------8<--------------------------
> The information below can be used to reproduce a debug environment:
>
> Current build   : 
> https://ci.linaro.org/job/tcwg_kernel--llvm-master-aarch64-stable-defconfig-build/60/artifact/artifacts
> Reference build : 
> https://ci.linaro.org/job/tcwg_kernel--llvm-master-aarch64-stable-defconfig-build/59/artifact/artifacts
>
> Reproduce last good and first bad builds: 
> https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/llvm/sha1/fd311126349b8fe1684d62154a9fa5a7bbb0b713/tcwg_kernel/llvm-master-aarch64-stable-defconfig/reproduction_instructions.txt
>
> Full commit : 
> https://github.com/llvm/llvm-project/commit/fd311126349b8fe1684d62154a9fa5a7bbb0b713
>
> Latest bug report status : https://linaro.atlassian.net/browse/LLVM-1007
>
> List of configurations that regressed due to this commit :
> * tcwg_kernel
> ** llvm-master-aarch64-stable-defconfig
> *** Failure
> *** 
> https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/llvm/sha1/fd311126349b8fe1684d62154a9fa5a7bbb0b713/tcwg_kernel/llvm-master-aarch64-stable-defconfig/details.txt
> *** 
> https://ci.linaro.org/job/tcwg_kernel--llvm-master-aarch64-stable-defconfig-build/60/



-- 
Thanks,
~Nick Desaulniers
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