# emerge -p -uvDU @world

These are the packages that would be merged, in order:

Calculating dependencies... done!
Dependency resolution took 71.66 s.

[ebuild     U *] sys-devel/llvm-common-17.0.0_pre20230615::gentoo [17.0.0_pre20230609::gentoo] 187,170 KiB
[ebuild     U *] sys-devel/clang-common-17.0.0_pre20230615::gentoo [17.0.0_pre20230609::gentoo] USE="hardened stricter -default-compiler-rt -default-libcxx -default-lld -llvm-libunwind" 0 KiB
[ebuild     U  ] dev-perl/Net-HTTP-6.230.0::gentoo [6.220.0::gentoo] USE="-minimal -test" 0 KiB
[ebuild     U  ] net-firewall/ipset-7.17-r1::gentoo [7.17::gentoo] USE="dist-kernel -modules" 0 KiB
[ebuild     U *] dev-python/lit-17.0.0_pre20230615::gentoo [17.0.0_pre20230609::gentoo] USE="-test" PYTHON_TARGETS="python3_10 python3_11 python3_12" 0 KiB
[ebuild     U  ] app-emacs/ebuild-mode-1.64::gentoo [1.63::gentoo] 39 KiB
[ebuild     U *] sys-libs/libomp-17.0.0_pre20230615:0/17.0.0_pre20230615::gentoo [17.0.0_pre20230609:0/17.0.0_pre20230609::gentoo] USE="debug -gdb-plugin -hwloc -offload -ompt -test" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="AMDGPU NVPTX" PYTHON_SINGLE_TARGET="python3_11 -python3_10 -python3_12%" 0 KiB
[ebuild     U *] sys-devel/llvm-17.0.0_pre20230615:17/17.0.0_pre20230615::gentoo [17.0.0_pre20230609:17/17.0.0_pre20230609::gentoo] USE="binutils-plugin debug doc libffi ncurses test xml -debuginfod -exegesis -libedit -xar -z3 -zstd" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" 0 KiB
[ebuild     U *] sys-devel/clang-17.0.0_pre20230615:17/17.0.0_pre20230615::gentoo [17.0.0_pre20230609:17/17.0.0_pre20230609::gentoo] USE="debug doc extra (pie) static-analyzer test xml (-ieee-long-double)" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" PYTHON_SINGLE_TARGET="python3_11 -python3_10 -python3_12%" 0 KiB
[ebuild     U *] sys-libs/compiler-rt-17.0.0_pre20230615:17::gentoo [17.0.0_pre20230609:17::gentoo] USE="clang debug test" ABI_X86="32 (64)" 0 KiB
[ebuild     U *] sys-libs/compiler-rt-sanitizers-17.0.0_pre20230615:17::gentoo [17.0.0_pre20230609:17::gentoo] USE="asan cfi clang debug dfsan gwp-asan hwasan libfuzzer lsan memprof msan profile safestack scudo test tsan ubsan xray -orc (-shadowcallstack)" ABI_X86="32 (64)" 0 KiB
[ebuild     U *] sys-devel/clang-runtime-17.0.0_pre20230615:17::gentoo [17.0.0_pre20230609:17::gentoo] USE="compiler-rt openmp sanitize -libcxx" ABI_X86="32 (64) (-x32)" 0 KiB
[ebuild     U *] dev-util/lldb-17.0.0_pre20230615:0/17.0.0_pre20230615::gentoo [17.0.0_pre20230609:0/17.0.0_pre20230609::gentoo] USE="debug libedit ncurses python xml -lzma -test" PYTHON_SINGLE_TARGET="python3_11 -python3_10 -python3_12%" 0 KiB
[ebuild     U *] sys-libs/libcxxabi-17.0.0_pre20230615::gentoo [17.0.0_pre20230609::gentoo] USE="clang -static-libs -test" ABI_X86="32 (64) (-x32)" 0 KiB
[ebuild     U *] sys-libs/libcxx-17.0.0_pre20230615::gentoo [17.0.0_pre20230609::gentoo] USE="clang (libcxxabi) -static-libs -test" ABI_X86="32 (64) (-x32)" 0 KiB
[ebuild     U *] sys-devel/lld-17.0.0_pre20230615:17/17.0.0_pre20230615::gentoo [17.0.0_pre20230609:17/17.0.0_pre20230609::gentoo] USE="debug test -zstd" 0 KiB

Total: 16 packages (16 upgrades), Size of downloads: 187,209 KiB

!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

sys-devel/clang:17

  (sys-devel/clang-17.0.0_pre20230615:17/17.0.0_pre20230615::gentoo, ebuild scheduled for merge) USE="debug doc extra (pie) static-analyzer test xml (-ieee-long-double)" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" PYTHON_SINGLE_TARGET="python3_11 -python3_10 -python3_12" pulled in by
    ~sys-devel/clang-17.0.0_pre20230615 required by (dev-util/lldb-17.0.0_pre20230615:0/17.0.0_pre20230615::gentoo, ebuild scheduled for merge) USE="debug libedit ncurses python xml -lzma -test" ABI_X86="(64)" PYTHON_SINGLE_TARGET="python3_11 -python3_10 -python3_12"
    ^                ^^^^^^^^^^^^^^^^^^

  (sys-devel/clang-17.0.0_pre20230609-1:17/17.0.0_pre20230609::gentoo, installed) USE="debug doc extra (pie) static-analyzer test xml (-ieee-long-double)" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" PYTHON_SINGLE_TARGET="python3_11 -python3_10" pulled in by
    sys-devel/clang:17/17.0.0_pre20230609= required by (dev-util/perf-6.3-3:0/0::gentoo, installed) USE="clang crypt doc gtk zlib -audit -babeltrace -debug -java -libpfm -lzma -numa -perl -python -slang -systemtap -unwind -zstd" ABI_X86="(64)" PYTHON_TARGETS="python3_10 python3_11"
                   ^^^^^^^^^^^^^^^^^^^^^^^

sys-devel/llvm:17

  (sys-devel/llvm-17.0.0_pre20230615:17/17.0.0_pre20230615::gentoo, ebuild scheduled for merge) USE="binutils-plugin debug doc libffi ncurses test xml -debuginfod -exegesis -libedit -xar -z3 -zstd" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" pulled in by
    ~sys-devel/llvm-17.0.0_pre20230615[llvm_targets_SystemZ] required by (sys-devel/clang-17.0.0_pre20230615:17/17.0.0_pre20230615::gentoo, ebuild scheduled for merge) USE="debug doc extra (pie) static-analyzer test xml (-ieee-long-double)" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" PYTHON_SINGLE_TARGET="python3_11 -python3_10 -python3_12"
    ^               ^^^^^^^^^^^^^^^^^^
    (and 21 more with the same problem)

  (sys-devel/llvm-17.0.0_pre20230609-1:17/17.0.0_pre20230609::gentoo, installed) USE="binutils-plugin debug doc libffi ncurses test xml -debuginfod -exegesis -libedit -xar -z3 -zstd" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" pulled in by
    ~sys-devel/llvm-17.0.0_pre20230609[llvm_targets_Hexagon] required by (sys-devel/clang-17.0.0_pre20230609-1:17/17.0.0_pre20230609::gentoo, installed) USE="debug doc extra (pie) static-analyzer test xml (-ieee-long-double)" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" PYTHON_SINGLE_TARGET="python3_11 -python3_10"
    ^               ^^^^^^^^^^^^^^^^^^
    >=sys-devel/llvm-14:17/17.0.0_pre20230609= required by (app-forensics/aflplusplus-4.07c-1:0/0::gentoo, installed) USE="-test" ABI_X86="(64)" PYTHON_SINGLE_TARGET="python3_11 -python3_10"
                       ^^^^^^^^^^^^^^^^^^^^^^^
    (and 20 more with the same problems)

sys-libs/compiler-rt:17

  (sys-libs/compiler-rt-17.0.0_pre20230615:17/17::gentoo, ebuild scheduled for merge) USE="clang debug test" ABI_X86="32 (64)" pulled in by
    ~sys-libs/compiler-rt-17.0.0_pre20230615:17[abi_x86_32(+)?,abi_x86_64(+)?] required by (sys-devel/clang-runtime-17.0.0_pre20230615:17/17::gentoo, ebuild scheduled for merge) USE="compiler-rt openmp sanitize -libcxx" ABI_X86="32 (64) (-x32)"
    ^                     ^^^^^^^^^^^^^^^^^^^^^

  (sys-libs/compiler-rt-17.0.0_pre20230609-1:17/17::gentoo, installed) USE="clang debug test" ABI_X86="32 (64)" pulled in by
    ~sys-libs/compiler-rt-17.0.0_pre20230609:17[abi_x86_32(+),abi_x86_64(+)] required by (sys-devel/clang-runtime-17.0.0_pre20230609:17/17::gentoo, installed) USE="compiler-rt openmp sanitize -libcxx" ABI_X86="32 (64) (-x32)"
    ^                     ^^^^^^^^^^^^^^^^^^^^^

sys-devel/clang-runtime:17

  (sys-devel/clang-runtime-17.0.0_pre20230615:17/17::gentoo, ebuild scheduled for merge) USE="compiler-rt openmp sanitize -libcxx" ABI_X86="32 (64) (-x32)" pulled in by
    ~sys-devel/clang-runtime-17.0.0_pre20230615 required by (sys-devel/clang-17.0.0_pre20230615:17/17.0.0_pre20230615::gentoo, ebuild scheduled for merge) USE="debug doc extra (pie) static-analyzer test xml (-ieee-long-double)" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" PYTHON_SINGLE_TARGET="python3_11 -python3_10 -python3_12"
    ^                        ^^^^^^^^^^^^^^^^^^

  (sys-devel/clang-runtime-17.0.0_pre20230609:17/17::gentoo, installed) USE="compiler-rt openmp sanitize -libcxx" ABI_X86="32 (64) (-x32)" pulled in by
    ~sys-devel/clang-runtime-17.0.0_pre20230609 required by (sys-devel/clang-17.0.0_pre20230609-1:17/17.0.0_pre20230609::gentoo, installed) USE="debug doc extra (pie) static-analyzer test xml (-ieee-long-double)" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (LoongArch) (MSP430) (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86) (XCore) -ARC -CSKY -DirectX -M68k -SPIRV -Xtensa" PYTHON_SINGLE_TARGET="python3_11 -python3_10"
    ^                        ^^^^^^^^^^^^^^^^^^

sys-libs/compiler-rt-sanitizers:17

  (sys-libs/compiler-rt-sanitizers-17.0.0_pre20230615:17/17::gentoo, ebuild scheduled for merge) USE="asan cfi clang debug dfsan gwp-asan hwasan libfuzzer lsan memprof msan profile safestack scudo test tsan ubsan xray -orc (-shadowcallstack)" ABI_X86="32 (64)" pulled in by
    ~sys-libs/compiler-rt-sanitizers-17.0.0_pre20230615:17[abi_x86_32(+)?,abi_x86_64(+)?] required by (sys-devel/clang-runtime-17.0.0_pre20230615:17/17::gentoo, ebuild scheduled for merge) USE="compiler-rt openmp sanitize -libcxx" ABI_X86="32 (64) (-x32)"
    ^                                ^^^^^^^^^^^^^^^^^^^^^

  (sys-libs/compiler-rt-sanitizers-17.0.0_pre20230609-1:17/17::gentoo, installed) USE="asan cfi clang debug dfsan gwp-asan hwasan libfuzzer lsan memprof msan profile safestack scudo test tsan ubsan xray -orc (-shadowcallstack)" ABI_X86="32 (64)" pulled in by
    ~sys-libs/compiler-rt-sanitizers-17.0.0_pre20230609:17[abi_x86_32(+),abi_x86_64(+)] required by (sys-devel/clang-runtime-17.0.0_pre20230609:17/17::gentoo, installed) USE="compiler-rt openmp sanitize -libcxx" ABI_X86="32 (64) (-x32)"
    ^                                ^^^^^^^^^^^^^^^^^^^^^

NOTE: Use the '--verbose-conflicts' option to display parents omitted above

It may be possible to solve this problem by using package.mask to
prevent one of those packages from being selected. However, it is also
possible that conflicting dependencies exist such that they are
impossible to satisfy simultaneously.  If such a conflict exists in
the dependencies of two different packages, then those packages can
not be installed simultaneously. You may want to try a larger value of
the --backtrack option, such as --backtrack=30, in order to see if
that will solve this conflict automatically.

For more information, see MASKED PACKAGES section in the emerge man
page or refer to the Gentoo Handbook.