[Bug 2101084] Re: GCC produces wrong code for arm64+sve in some cases
Andreas Hasenack
2101084 at bugs.launchpad.net
Thu Feb 26 13:53:15 UTC 2026
Copied gcc-9 in jammy updates to security:
$ ./copy-package --from-suite jammy-updates --to-suite jammy-security -b --auto-approve -e 9.5.0-1ubuntu1~22.04.1 gcc-9
Copy candidates:
gcc-9 9.5.0-1ubuntu1~22.04.1 in jammy
cpp-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
cpp-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
cpp-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
cpp-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
cpp-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
cpp-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
cpp-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
cpp-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
cpp-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
cpp-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
cpp-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
cpp-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
cpp-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
cpp-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
cpp-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy amd64
cpp-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy arm64
cpp-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy armhf
cpp-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy i386
cpp-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
cpp-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
cpp-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy s390x
g++-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
g++-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
g++-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
g++-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
g++-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
g++-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
g++-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
g++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
g++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
g++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
g++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
g++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
g++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
g++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
g++-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy amd64
g++-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy i386
g++-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gcc-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gcc-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gcc-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gcc-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gcc-9-base 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-base 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gcc-9-base 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gcc-9-base 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-base 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9-base 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gcc-9-base 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gcc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gcc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gcc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gcc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gcc-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gcc-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gcc-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gcc-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gcc-9-hppa64-linux-gnu 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-hppa64-linux-gnu 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-hppa64-linux-gnu-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-hppa64-linux-gnu-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-locales 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-locales 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gcc-9-locales 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gcc-9-locales 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-locales 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9-locales 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gcc-9-locales 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gcc-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gcc-9-offload-nvptx 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-offload-nvptx 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9-offload-nvptx-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-offload-nvptx-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9-plugin-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-plugin-dev 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gcc-9-plugin-dev 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gcc-9-plugin-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-plugin-dev 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9-plugin-dev 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gcc-9-plugin-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gcc-9-plugin-dev-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-plugin-dev-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gcc-9-plugin-dev-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gcc-9-plugin-dev-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-plugin-dev-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9-plugin-dev-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gcc-9-plugin-dev-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gcc-9-source 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-source 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gcc-9-source 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gcc-9-source 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-source 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9-source 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gcc-9-source 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gcc-9-test-results 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gcc-9-test-results 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gcc-9-test-results 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gcc-9-test-results 9.5.0-1ubuntu1~22.04.1 in jammy i386
gcc-9-test-results 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gcc-9-test-results 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gcc-9-test-results 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gccbrig-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gccbrig-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
gccbrig-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gccbrig-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gccgo-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gccgo-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gccgo-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gccgo-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
gccgo-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gccgo-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gccgo-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gccgo-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gccgo-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gccgo-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gccgo-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gccgo-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gccgo-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gccgo-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gccgo-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gccgo-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gccgo-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gccgo-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy i386
gccgo-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gccgo-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gccgo-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gccgo-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gccgo-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy i386
gccgo-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gdc-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gdc-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gdc-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gdc-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
gdc-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gdc-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gdc-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gdc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gdc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gdc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gdc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gdc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gdc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gdc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gdc-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gdc-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy i386
gdc-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gfortran-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gfortran-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gfortran-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gfortran-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
gfortran-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gfortran-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gfortran-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gfortran-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gfortran-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gfortran-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gfortran-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gfortran-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gfortran-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gfortran-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gfortran-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gfortran-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gfortran-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gfortran-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy i386
gfortran-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gfortran-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gfortran-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gfortran-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gfortran-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy i386
gfortran-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gm2-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gm2-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gm2-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gm2-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
gm2-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gm2-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gm2-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gm2-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gm2-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gm2-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gm2-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gm2-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gm2-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gm2-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gnat-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gnat-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gnat-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gnat-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
gnat-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gnat-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gnat-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gnat-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gnat-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gnat-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gnat-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy i386
gnat-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gnat-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gnat-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gobjc++-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gobjc++-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gobjc++-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gobjc++-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
gobjc++-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gobjc++-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gobjc++-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gobjc++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gobjc++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gobjc++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gobjc++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gobjc++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gobjc++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gobjc++-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gobjc++-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gobjc++-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy i386
gobjc++-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gobjc-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gobjc-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gobjc-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gobjc-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
gobjc-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gobjc-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gobjc-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gobjc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gobjc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
gobjc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
gobjc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
gobjc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
gobjc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
gobjc-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
gobjc-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy amd64
gobjc-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy i386
gobjc-9-multilib 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32asan5 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32asan5 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32gcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32gcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32gfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32gfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32go-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32go-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32go14 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32go14 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32gphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32gphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32gphobos76 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32gphobos76 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32gphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32gphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32objc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32objc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32stdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32stdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib32stdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy amd64
lib32stdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy s390x
lib64asan5 9.5.0-1ubuntu1~22.04.1 in jammy i386
lib64gcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
lib64gfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
lib64go-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
lib64go14 9.5.0-1ubuntu1~22.04.1 in jammy i386
lib64gphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
lib64gphobos76 9.5.0-1ubuntu1~22.04.1 in jammy i386
lib64gphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
lib64objc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
lib64stdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
lib64stdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy i386
libasan5 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libasan5 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libasan5 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libasan5 9.5.0-1ubuntu1~22.04.1 in jammy i386
libasan5 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libasan5 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgccjit-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgccjit-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgccjit-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgccjit-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgccjit-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgccjit-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgccjit-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgccjit-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgccjit-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgccjit-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgccjit-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgccjit-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgccjit-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgccjit-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgm2-0 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgm2-0 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgm2-0 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgm2-0 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgm2-0 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgm2-0 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgm2-0 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgm2-0-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgm2-0-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgm2-0-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgm2-0-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgm2-0-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgm2-0-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgm2-0-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgm2-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgm2-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgm2-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgm2-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgm2-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgm2-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgm2-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgnat-9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgnat-9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgnat-9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgnat-9 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgnat-9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgnat-9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgnat-9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgnat-9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgnatvsn9 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgnatvsn9 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgnatvsn9 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgnatvsn9 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgnatvsn9 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgnatvsn9 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgnatvsn9 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgnatvsn9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgnatvsn9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgnatvsn9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgnatvsn9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgnatvsn9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgnatvsn9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgnatvsn9-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgnatvsn9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgnatvsn9-dev 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgnatvsn9-dev 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgnatvsn9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgnatvsn9-dev 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgnatvsn9-dev 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgnatvsn9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgo-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgo-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgo-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgo-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgo-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgo-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgo-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgo14 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgo14 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgo14 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgo14 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgo14 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libgo14 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgo14 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgphobos76 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgphobos76 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgphobos76 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgphobos76 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgphobos76 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgphobos76 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libgphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libgphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libgphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libgphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
libgphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libgphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libhsail-rt-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libhsail-rt-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libobjc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libobjc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libobjc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libobjc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libobjc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libobjc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libobjc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libstdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libstdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libstdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libstdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libstdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libstdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libstdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libstdc++-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libstdc++-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libstdc++-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libstdc++-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy i386
libstdc++-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libstdc++-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libstdc++-9-doc 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libstdc++-9-pic 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libstdc++-9-pic 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libstdc++-9-pic 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libstdc++-9-pic 9.5.0-1ubuntu1~22.04.1 in jammy i386
libstdc++-9-pic 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libstdc++-9-pic 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libstdc++-9-pic 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libstdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libstdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy arm64
libstdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy armhf
libstdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy i386
libstdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy ppc64el
libstdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy riscv64
libstdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy s390x
libx32asan5 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32asan5 9.5.0-1ubuntu1~22.04.1 in jammy i386
libx32gcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32gcc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libx32gfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32gfortran-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libx32go-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32go-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libx32go14 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32go14 9.5.0-1ubuntu1~22.04.1 in jammy i386
libx32gphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32gphobos-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libx32gphobos76 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32gphobos76 9.5.0-1ubuntu1~22.04.1 in jammy i386
libx32gphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32gphobos76-dbgsym 9.5.0-1ubuntu1~22.04.1 in jammy i386
libx32objc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32objc-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libx32stdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32stdc++-9-dev 9.5.0-1ubuntu1~22.04.1 in jammy i386
libx32stdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy amd64
libx32stdc++6-9-dbg 9.5.0-1ubuntu1~22.04.1 in jammy i386
Candidate copy target: https://api.launchpad.net/devel/ubuntu/+archive/primary, jammy, security
Copy [y|N]? y
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--
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to gcc-10 in Ubuntu.
https://bugs.launchpad.net/bugs/2101084
Title:
GCC produces wrong code for arm64+sve in some cases
Status in gcc:
Fix Released
Status in Ubuntu Pro:
In Progress
Status in Ubuntu Pro 20.04 series:
In Progress
Status in gcc-10 package in Ubuntu:
New
Status in gcc-11 package in Ubuntu:
Fix Released
Status in gcc-12 package in Ubuntu:
Fix Released
Status in gcc-13 package in Ubuntu:
Invalid
Status in gcc-14 package in Ubuntu:
Invalid
Status in gcc-8 package in Ubuntu:
Won't Fix
Status in gcc-9 package in Ubuntu:
Fix Released
Status in gcc-10 source package in Focal:
Won't Fix
Status in gcc-8 source package in Focal:
Won't Fix
Status in gcc-9 source package in Focal:
Won't Fix
Status in gcc-10 source package in Jammy:
Fix Released
Status in gcc-11 source package in Jammy:
Fix Released
Status in gcc-9 source package in Jammy:
Fix Released
Status in gcc-10 source package in Noble:
Fix Released
Status in gcc-11 source package in Noble:
Fix Released
Status in gcc-13 source package in Noble:
Fix Released
Status in gcc-14 source package in Noble:
Fix Released
Status in gcc-9 source package in Noble:
Fix Released
Status in gcc-11 source package in Oracular:
Won't Fix
Status in gcc-13 source package in Oracular:
Won't Fix
Status in gcc-14 source package in Oracular:
Won't Fix
Status in gcc-11 source package in Plucky:
Won't Fix
Status in gcc-13 source package in Plucky:
Invalid
Status in gcc-14 source package in Plucky:
Invalid
Status in gcc-11 source package in Questing:
Fix Released
Status in gcc-13 source package in Questing:
Invalid
Status in gcc-14 source package in Questing:
Invalid
Status in gcc-11 source package in Resolute:
Fix Released
Status in gcc-13 source package in Resolute:
Invalid
Status in gcc-14 source package in Resolute:
Invalid
Status in gcc-11 package in Debian:
New
Bug description:
[Impact]
This bug causes data corruption in the ARM64 code compiled with Scalable Vector Extensions (SVE) enabled for the 256-bit SVE processor but executed on 128-bit SVE processors.
Example is AWS workload built for Graviton3, but executed on Graviton4.
When the compiler was compiling the ~ConstA (Not ConstA) expression to
compute the index into the vector it was actually computing -ConstA
(minus ConstA), e.g. ~4 instead of -5 produced -4.
Graviton 4 processes a 256-bit vector in two passes. For the second
pass it runs into this bug when computing indices into the second half
of the vector and ends up with {-4, -5, -6, -7}, processing the last
element of the first half twice and never touching the last element of
the vector.
This data corruption may cause data loss, failing checksums, and
potentially security issues.
[Test Plan]
I was using Raspberry PI 5 for testing, but any other ARM64 platform
or virtual machine will be sufficient.
Install QEMU in noble:
apt install qemu-user-static
Launch lxd vm for the affected release, e.g.
lxc launch ubuntu-daily:jammy tester
lxc file push test.c tester/home/ubuntu/
Install affected gcc:
lxc exec tester -- /bin/sh -c "apt-get update && apt-get install -y gcc-9"
Compile the reproducer[1]:
lxc exec tester -- /bin/sh -c "gcc-9 -fno-inline -O3 -Wall -fno-strict-aliasing -march=armv8.4-a+sve -o /home/ubuntu/final /home/ubuntu/test.c”
Fetch the reproducer:
lxc file pull tester/home/ubuntu/final final
Execute the testcase:
qemu-aarch64-static -cpu neoverse-n2 ./final
The testcase will output:
PASS: got 0x00bbbbbb 0x00aaaaaa as expected
If the bug is fixed and
ERROR: expected 0x00bbbbbb 0x00aaaaaa but got 0x00bbbbbb 0xaaaaaa00
otherwise.
[Where the problems can occur]
The issue is a typo in the code that is used to calculate offset into
the vector.
The already corrupted data (e.g. checksums) calculated by the affected
code will not match with the values produced after the fix. This may
cause the end user to rebuild the indices relying on the calculated
hash values after their workloads are recompiled by the fixed gcc.
[Other info]
Focal fixes will be done through the -pro updates.
I have ran the test case set Invalid for the versions that are not
affected by this issue.
Affected:
All gcc-8[2]
All gcc-9[2]
All gcc-11[2]
Noble and down Gcc-12
Noble and down Gcc-13
Noble and down Gcc-14
Gcc-15 is not affected
The fixed packages will be uploaded to the stable PPA[3] created for this SRU.
The PPA depends on -security only. The packages will need to be binary-copied to -updates and -security.
[1] https://bugs.launchpad.net/ubuntu/plucky/+source/gcc-14/+bug/2101084/comments/39
[2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118976#c21
[3] https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/lp-2101084-again
Original Description:
[Impact]
This issue affects SVE vectorization on arm64 platforms, specifically in cases where bitwise-not operations are applied during optimization.
[Fix]
This issue has been resolved by an upstream patch.
commit 78380fd7f743e23dfdf013d68a2f0347e1511550
Author: Richard Sandiford <richard.sandiford at arm.com>
Date: Tue Mar 4 10:44:35 2025 +0000
Fix folding of BIT_NOT_EXPR for POLY_INT_CST [PR118976]
There was an embarrassing typo in the folding of BIT_NOT_EXPR for
POLY_INT_CSTs: it used - rather than ~ on the poly_int. Not sure
how that happened, but it might have been due to the way that
~x is implemented as -1 - x internally.
gcc/
PR tree-optimization/118976
* fold-const.cc (const_unop): Use ~ rather than - for BIT_NOT_EXPR.
* config/aarch64/aarch64.cc (aarch64_test_sve_folding): New function.
(aarch64_run_selftests): Run it.
[Test Plan]
1. Launch an instance using the latest generation of Graviton processors (Graviton4).
2. Compile the following code using the command `gcc -O3 -march=armv8.1-a+sve`:
#include <stdint.h>
#include <stdio.h>
#ifndef NCOUNTS
#define NCOUNTS 2
#endif
typedef struct {
uint32_t state[5];
uint32_t count[NCOUNTS];
unsigned char buffer[64];
} SHA1_CTX;
void finalcount_av(SHA1_CTX *restrict ctx, unsigned char *restrict finalcount) {
// ctx->count is: uint32_t count[2];
int count_idx;
for (int i = 0; i < 4*NCOUNTS; i++) {
count_idx = (4*NCOUNTS - i - 1)/4; // generic but equivalent for NCOUNTS==2.
finalcount[i] = (unsigned char)((ctx->count[count_idx] >> ((3-(i & 3)) * 8) ) & 255);
}
}
void finalcount_bv(SHA1_CTX *restrict ctx, unsigned char *restrict finalcount) {
for (int i=0; i < 4*NCOUNTS; i += 4) {
int ci = (4*NCOUNTS - i - 1)/4;
finalcount[i+0] = (unsigned char)((ctx->count[ci] >> (3 * 8) ) & 255);
finalcount[i+1] = (unsigned char)((ctx->count[ci] >> (2 * 8) ) & 255);
finalcount[i+2] = (unsigned char)((ctx->count[ci] >> (1 * 8) ) & 255);
finalcount[i+3] = (unsigned char)((ctx->count[ci] >> (0 * 8) ) & 255);
}
}
int main() {
unsigned char fa[NCOUNTS*4];
unsigned char fb[NCOUNTS*4];
uint32_t *for_print;
int i;
SHA1_CTX ctx;
ctx.count[0] = 0xaaaaaa00;
ctx.count[1] = 0xbbbbbb00;
if (NCOUNTS >2 ) ctx.count[2] = 0xcccccc00;
if (NCOUNTS >3 ) ctx.count[3] = 0xdddddd00;
finalcount_av(&ctx, fa);
finalcount_bv(&ctx, fb);
int ok = 1;
for (i=0; i<NCOUNTS*4; i++) {
ok &= fa[i] == fb[i];
}
if (!ok) {
for_print = (uint32_t*)fb;
printf("ERROR: expected ");
for (i=0; i<NCOUNTS; i++) {
printf("0x%08x ",for_print[i]);
}
for_print = (uint32_t*)fa;
printf("but got ");
for (i=0; i<NCOUNTS; i++) {
printf("0x%08x ",for_print[i]);
}
printf("\n");
return 1;
} else {
for_print = (uint32_t*)fa;
printf("PASS: got ");
for (i=0; i<NCOUNTS; i++) {
printf("0x%08x ",for_print[i]);
}
printf("as expected\n");
return 0;
}
}
3. Verify that the execution output does not contain the string
"ERROR".
[Where problems could occur]
The issue is caused by a typo. If any regressions occur, they are expected to impact only specific partial instructions under certain scenarios, rather than disrupting the overall functionality.
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