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[TCWG-CI] Failure after llvm commit: llvmorg-18-init-1010-g610ec954e1f8 [clang] allow const structs/unions/arrays to be constant expressions for C
In CI config tcwg_kernel/llvm-master-aarch64-mainline-allyesconfig after:
| commit 610ec954e1f81c0e8fcadedcd25afe643f5a094e
| Author: Nick Desaulniers <ndesaulniers@google.com>
| Date: Wed Aug 2 15:23:47 2023 -0700
|
| [clang] allow const structs/unions/arrays to be constant expressions for C
|
| For code like:
| struct foo { ... };
| struct bar { struct foo foo; };
| const struct foo my_foo = { ... };
| ... 17 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:
22011
# First few build errors in logs:
# 00:07:19 lib/test_scanf.c:661:2: error: implicit conversion from 'int' to 'unsigned char' changes value from -168 to 88 [-Werror,-Wconstant-conversion]
# 00:07:19 make[3]: *** [scripts/Makefile.build:243: lib/test_scanf.o] Error 1
# 00:12:06 make[2]: *** [scripts/Makefile.build:480: lib] Error 2
# 01:06:29 make[1]: *** [/home/tcwg-buildslave/workspace/tcwg_kernel_1/linux/Makefile:2032: .] Error 2
# 01:06:29 make: *** [Makefile:234: __sub-make] Error 2
From
# reset_artifacts:
-10
# build_abe binutils:
-9
# build_kernel_llvm:
-5
# build_abe qemu:
-2
# linux_n_obj:
22083
# linux build successful:
all
-----------------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-mainline-allyesconfig-build/68/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_kernel--llvm-master-aarch64-mainline-allyesconfig-build/67/artifact/artifacts
Reproduce last good and first bad builds: https://git.linaro.org/toolchain/ci/interesting-commits.git/plain/llvm/sha1/610ec954e1f81c0e8fcadedcd25afe643f5a094e/reproduction_instructions.txt
Full commit : https://github.com/llvm/llvm-project/commit/610ec954e1f81c0e8fcadedcd25afe643f5a094e
Latest bug report status : https://linaro.atlassian.net/browse/LLVM-646
List of configurations that regressed due to this commit :
* tcwg_kernel
** llvm-master-aarch64-mainline-allyesconfig
*** Failure
*** https://ci.linaro.org/job/tcwg_kernel--llvm-master-aarch64-mainline-allyesconfig-build/68/
** llvm-master-aarch64-stable-allmodconfig
*** Failure
*** https://ci.linaro.org/job/tcwg_kernel--llvm-master-aarch64-stable-allmodconfig-build/52/
|
