[llvm] r373031 - [X86] Remove CodeGenOnly instructions added in r373021, but keep the isel patterns and add COPY_TO_REGCLASS to them.
Craig Topper via llvm-commits
llvm-commits at lists.llvm.org
Fri Sep 27 12:23:24 PDT 2019
Ok I think this was fixed by r373031 after all. One of the new CodeGenOnly
instruction was missing the "let Constraints" line from the instruction I
copied from. This caused the code emitter to not count operands correctly
and bad things happened.
~Craig
On Thu, Sep 26, 2019 at 11:46 PM David Zarzycki <dave at znu.io> wrote:
> FAILED: lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o
> /p/tllvm/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GNU_SOURCE
> -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
> -Ilib/Support -I/home/dave/s/lp/llvm/lib/Support -I/usr/include/libxml2
> -Iinclude -I/home/dave/s/lp/llvm/include -isystem /usr/include/z3
> -Werror=switch -fPIC -fvisibility-inlines-hidden -Werror=date-time
> -Werror=unguarded-availability-new -std=c++14 -Wall -Wextra
> -Wno-unused-parameter -Wwrite-strings -Wcast-qual
> -Wmissing-field-initializers -pedantic -Wno-long-long
> -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type
> -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wstring-conversion
> -fdiagnostics-color -ffunction-sections -fdata-sections -O2 -UNDEBUG
> -march=knl -mno-avx512er -mno-avx512pf -fno-vectorize -fno-slp-vectorize
> -fno-tree-slp-vectorize -fno-exceptions -fno-rtti -MD -MT
> lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o -MF
> lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o.d -o
> lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o -c
> /home/dave/s/lp/llvm/lib/Support/APInt.cpp
> Stack dump:
> 0. Program arguments: /p/tllvm/bin/clang-10 -cc1 -triple
> x86_64-unknown-linux-gnu -emit-obj -disable-free -disable-llvm-verifier
> -discard-value-names -main-file-name APInt.cpp -mrelocation-model pic
> -pic-level 2 -mthread-model posix -mframe-pointer=none -fmath-errno
> -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array
> -target-cpu knl -target-feature -avx512er -target-feature -avx512pf
> -dwarf-column-info -debugger-tuning=gdb -ffunction-sections -fdata-sections
> -resource-dir /p/tllvm/lib64/clang/10.0.0 -dependency-file
> lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o.d -MT
> lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o -sys-header-deps
> -isystem /usr/include/z3 -D GTEST_HAS_RTTI=0 -D _DEBUG -D _GNU_SOURCE -D
> __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I
> lib/Support -I /home/dave/s/lp/llvm/lib/Support -I /usr/include/libxml2 -I
> include -I /home/dave/s/lp/llvm/include -U NDEBUG -internal-isystem
> /p/tllvm/bin/../include/c++/v1 -internal-isystem /usr/local/include
> -internal-isystem /p/tllvm/lib64/clang/10.0.0/include
> -internal-externc-isystem /include -internal-externc-isystem /usr/include
> -O2 -Werror=switch -Werror=date-time -Werror=unguarded-availability-new
> -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual
> -Wmissing-field-initializers -Wno-long-long -Wimplicit-fallthrough
> -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor
> -Wdelete-non-virtual-dtor -Wstring-conversion -pedantic -std=c++14
> -fdeprecated-macro -fdebug-compilation-dir /tmp/_update_lc/t -ferror-limit
> 19 -fmessage-length 0 -fvisibility-inlines-hidden -fno-rtti
> -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -faddrsig
> -o lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o -x c++
> /home/dave/s/lp/llvm/lib/Support/APInt.cpp
> 1. <eof> parser at end of file
> 2. Code generation
> 3. Running pass 'Function Pass Manager' on module
> '/home/dave/s/lp/llvm/lib/Support/APInt.cpp'.
> 4. Running pass 'X86 Assembly Printer' on function
> '@_ZNK4llvm5APInt13roundToDoubleEb'
> #0 0x0000000001f2b628 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
> (/p/tllvm/bin/clang-10+0x1f2b628)
> #1 0x0000000001f29ad8 llvm::sys::RunSignalHandlers()
> (/p/tllvm/bin/clang-10+0x1f29ad8)
> #2 0x0000000001f2bb48 SignalHandler(int) (/p/tllvm/bin/clang-10+0x1f2bb48)
> #3 0x00007ffff7fa9b20 __restore_rt (/lib64/libpthread.so.0+0x14b20)
> #4 0x0000000001570678 (anonymous
> namespace)::X86MCCodeEmitter::EmitImmediate(llvm::MCOperand const&,
> llvm::SMLoc, unsigned int, llvm::MCFixupKind, unsigned int&,
> llvm::raw_ostream&, llvm::SmallVectorImpl<llvm::MCFixup>&, int) const
> (/p/tllvm/bin/clang-10+0x1570678)
> #5 0x0000000001570b88 (anonymous
> namespace)::X86MCCodeEmitter::emitMemModRMByte(llvm::MCInst const&,
> unsigned int, unsigned int, unsigned long, bool, unsigned int&,
> llvm::raw_ostream&, llvm::SmallVectorImpl<llvm::MCFixup>&,
> llvm::MCSubtargetInfo const&) const (/p/tllvm/bin/clang-10+0x1570b88)
> #6 0x000000000156fdad (anonymous
> namespace)::X86MCCodeEmitter::encodeInstruction(llvm::MCInst const&,
> llvm::raw_ostream&, llvm::SmallVectorImpl<llvm::MCFixup>&,
> llvm::MCSubtargetInfo const&) const (/p/tllvm/bin/clang-10+0x156fdad)
> #7 0x0000000001cc7d9f llvm::MCELFStreamer::EmitInstToData(llvm::MCInst
> const&, llvm::MCSubtargetInfo const&) (/p/tllvm/bin/clang-10+0x1cc7d9f)
> #8 0x0000000001cd3a4c
> llvm::MCObjectStreamer::EmitInstruction(llvm::MCInst const&,
> llvm::MCSubtargetInfo const&) (/p/tllvm/bin/clang-10+0x1cd3a4c)
> #9 0x0000000001379931
> llvm::X86AsmPrinter::EmitInstruction(llvm::MachineInstr const*)
> (/p/tllvm/bin/clang-10+0x1379931)
> #10 0x00000000027d4da7 llvm::AsmPrinter::EmitFunctionBody()
> (/p/tllvm/bin/clang-10+0x27d4da7)
> #11 0x0000000001372f18
> llvm::X86AsmPrinter::runOnMachineFunction(llvm::MachineFunction&)
> (/p/tllvm/bin/clang-10+0x1372f18)
> #12 0x00000000017c554d
> llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
> (/p/tllvm/bin/clang-10+0x17c554d)
> #13 0x0000000001aa1101 llvm::FPPassManager::runOnFunction(llvm::Function&)
> (/p/tllvm/bin/clang-10+0x1aa1101)
> #14 0x0000000001aa13e3 llvm::FPPassManager::runOnModule(llvm::Module&)
> (/p/tllvm/bin/clang-10+0x1aa13e3)
> #15 0x0000000001aa17dc llvm::legacy::PassManagerImpl::run(llvm::Module&)
> (/p/tllvm/bin/clang-10+0x1aa17dc)
> #16 0x0000000002099d54 clang::EmitBackendOutput(clang::DiagnosticsEngine&,
> clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
> clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout
> const&, llvm::Module*, clang::BackendAction,
> std::unique_ptr<llvm::raw_pwrite_stream,
> std::default_delete<llvm::raw_pwrite_stream> >)
> (/p/tllvm/bin/clang-10+0x2099d54)
> #17 0x0000000002690d0d
> clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
> (/p/tllvm/bin/clang-10+0x2690d0d)
> #18 0x00000000031ef10b clang::ParseAST(clang::Sema&, bool, bool)
> (/p/tllvm/bin/clang-10+0x31ef10b)
> #19 0x00000000025fb0ae clang::FrontendAction::Execute()
> (/p/tllvm/bin/clang-10+0x25fb0ae)
> #20 0x0000000002582ed2
> clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
> (/p/tllvm/bin/clang-10+0x2582ed2)
> #21 0x000000000268c06d
> clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
> (/p/tllvm/bin/clang-10+0x268c06d)
> #22 0x0000000001369524 cc1_main(llvm::ArrayRef<char const*>, char const*,
> void*) (/p/tllvm/bin/clang-10+0x1369524)
> #23 0x0000000001367886 main (/p/tllvm/bin/clang-10+0x1367886)
> #24 0x00007ffff60ce1a3 __libc_start_main (/lib64/libc.so.6+0x271a3)
> #25 0x000000000136502e _start (/p/tllvm/bin/clang-10+0x136502e)
> clang-10: error: unable to execute command: Segmentation fault
> clang-10: error: clang frontend command failed due to signal (use -v to
> see invocation)
> clang version 10.0.0 (/home/dave/s/lp/clang
> c89872497457676bbbb564155cc669d587614d00)
> Target: x86_64-unknown-linux-gnu
> Thread model: posix
> InstalledDir: /p/tllvm/bin
> clang-10: note: diagnostic msg: PLEASE submit a bug report to
> https://bugs.llvm.org/ and include the crash backtrace, preprocessed
> source, and associated run script.
> clang-10: note: diagnostic msg:
> ********************
>
> PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
> Preprocessed source(s) and associated run script(s) are located at:
> clang-10: note: diagnostic msg: /tmp/APInt-53e48c.cpp
> clang-10: note: diagnostic msg: /tmp/APInt-53e48c.sh
> clang-10: note: diagnostic msg:
>
> ********************
>
>
>
> # Crash reproducer for clang version 10.0.0 (/home/dave/s/lp/clang
> c89872497457676bbbb564155cc669d587614d00)
> # Driver args: "--driver-mode=g++" "-D" "GTEST_HAS_RTTI=0" "-D" "_DEBUG"
> "-D" "_GNU_SOURCE" "-D" "__STDC_CONSTANT_MACROS" "-D"
> "__STDC_FORMAT_MACROS" "-D" "__STDC_LIMIT_MACROS" "-I" "lib/Support" "-I"
> "/home/dave/s/lp/llvm/lib/Support" "-I" "/usr/include/libxml2" "-I"
> "include" "-I" "/home/dave/s/lp/llvm/include" "-isystem" "/usr/include/z3"
> "-Werror=switch" "-fPIC" "-fvisibility-inlines-hidden" "-Werror=date-time"
> "-Werror=unguarded-availability-new" "-std=c++14" "-Wall" "-Wextra"
> "-Wno-unused-parameter" "-Wwrite-strings" "-Wcast-qual"
> "-Wmissing-field-initializers" "-pedantic" "-Wno-long-long"
> "-Wimplicit-fallthrough" "-Wcovered-switch-default" "-Wno-noexcept-type"
> "-Wnon-virtual-dtor" "-Wdelete-non-virtual-dtor" "-Wstring-conversion"
> "-fdiagnostics-color" "-ffunction-sections" "-fdata-sections" "-O2" "-U"
> "NDEBUG" "-march=knl" "-mno-avx512er" "-mno-avx512pf" "-fno-vectorize"
> "-fno-slp-vectorize" "-fno-slp-vectorize" "-fno-exceptions" "-fno-rtti"
> "-MD" "-MT" "lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o" "-MF"
> "lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o.d" "-o"
> "lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o" "-c"
> "/home/dave/s/lp/llvm/lib/Support/APInt.cpp"
> # Original command: "/p/tllvm/bin/clang-10" "-cc1" "-triple"
> "x86_64-unknown-linux-gnu" "-emit-obj" "-disable-free"
> "-disable-llvm-verifier" "-discard-value-names" "-main-file-name"
> "APInt.cpp" "-mrelocation-model" "pic" "-pic-level" "2" "-mthread-model"
> "posix" "-mframe-pointer=none" "-fmath-errno" "-masm-verbose"
> "-mconstructor-aliases" "-munwind-tables" "-fuse-init-array" "-target-cpu"
> "knl" "-target-feature" "-avx512er" "-target-feature" "-avx512pf"
> "-dwarf-column-info" "-debugger-tuning=gdb" "-ffunction-sections"
> "-fdata-sections" "-resource-dir" "/p/tllvm/lib64/clang/10.0.0"
> "-dependency-file" "lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o.d"
> "-MT" "lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o"
> "-sys-header-deps" "-isystem" "/usr/include/z3" "-D" "GTEST_HAS_RTTI=0"
> "-D" "_DEBUG" "-D" "_GNU_SOURCE" "-D" "__STDC_CONSTANT_MACROS" "-D"
> "__STDC_FORMAT_MACROS" "-D" "__STDC_LIMIT_MACROS" "-I" "lib/Support" "-I"
> "/home/dave/s/lp/llvm/lib/Support" "-I" "/usr/include/libxml2" "-I"
> "include" "-I" "/home/dave/s/lp/llvm/include" "-U" "NDEBUG"
> "-internal-isystem" "/p/tllvm/bin/../include/c++/v1" "-internal-isystem"
> "/usr/local/include" "-internal-isystem"
> "/p/tllvm/lib64/clang/10.0.0/include" "-internal-externc-isystem"
> "/include" "-internal-externc-isystem" "/usr/include" "-O2"
> "-Werror=switch" "-Werror=date-time" "-Werror=unguarded-availability-new"
> "-Wall" "-Wextra" "-Wno-unused-parameter" "-Wwrite-strings" "-Wcast-qual"
> "-Wmissing-field-initializers" "-Wno-long-long" "-Wimplicit-fallthrough"
> "-Wcovered-switch-default" "-Wno-noexcept-type" "-Wnon-virtual-dtor"
> "-Wdelete-non-virtual-dtor" "-Wstring-conversion" "-pedantic" "-std=c++14"
> "-fdeprecated-macro" "-fdebug-compilation-dir" "/tmp/_update_lc/t"
> "-ferror-limit" "19" "-fmessage-length" "0" "-fvisibility-inlines-hidden"
> "-fno-rtti" "-fobjc-runtime=gcc" "-fdiagnostics-show-option"
> "-fcolor-diagnostics" "-faddrsig" "-o"
> "lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o" "-x" "c++"
> "/home/dave/s/lp/llvm/lib/Support/APInt.cpp"
> "/p/tllvm/bin/clang-10" "-cc1" "-triple" "x86_64-unknown-linux-gnu"
> "-emit-obj" "-disable-free" "-disable-llvm-verifier" "-discard-value-names"
> "-main-file-name" "APInt.cpp" "-mrelocation-model" "pic" "-pic-level" "2"
> "-mthread-model" "posix" "-mframe-pointer=none" "-fmath-errno"
> "-masm-verbose" "-mconstructor-aliases" "-munwind-tables"
> "-fuse-init-array" "-target-cpu" "knl" "-target-feature" "-avx512er"
> "-target-feature" "-avx512pf" "-dwarf-column-info" "-debugger-tuning=gdb"
> "-ffunction-sections" "-fdata-sections" "-sys-header-deps" "-D"
> "GTEST_HAS_RTTI=0" "-D" "_DEBUG" "-D" "_GNU_SOURCE" "-D"
> "__STDC_CONSTANT_MACROS" "-D" "__STDC_FORMAT_MACROS" "-D"
> "__STDC_LIMIT_MACROS" "-U" "NDEBUG" "-O2" "-Werror=switch"
> "-Werror=date-time" "-Werror=unguarded-availability-new" "-Wall" "-Wextra"
> "-Wno-unused-parameter" "-Wwrite-strings" "-Wcast-qual"
> "-Wmissing-field-initializers" "-Wno-long-long" "-Wimplicit-fallthrough"
> "-Wcovered-switch-default" "-Wno-noexcept-type" "-Wnon-virtual-dtor"
> "-Wdelete-non-virtual-dtor" "-Wstring-conversion" "-pedantic" "-std=c++14"
> "-fdeprecated-macro" "-ferror-limit" "19" "-fmessage-length" "0"
> "-fvisibility-inlines-hidden" "-fno-rtti" "-fobjc-runtime=gcc"
> "-fdiagnostics-show-option" "-fcolor-diagnostics" "-faddrsig" "-x" "c++"
> "APInt-53e48c.cpp"
>
>
>
>
> > On Sep 27, 2019, at 9:32 AM, Craig Topper <craig.topper at gmail.com>
> wrote:
> >
> > I didn't know there was a stage-two build failure. If the original patch
> is bad, I don't expect this to fix it. Do you have any additional
> information that can help me narrow down the problem?
> >
> > ~Craig
> >
> >
> > On Thu, Sep 26, 2019 at 9:46 PM David Zarzycki via llvm-commits <
> llvm-commits at lists.llvm.org> wrote:
> > Hi Craig,
> >
> > A locale bisect just finished. Does this fix the stage-two build failure
> introduced by r373021?
> >
> > Dave
> >
> > > On Sep 27, 2019, at 2:22 AM, Craig Topper via llvm-commits <
> llvm-commits at lists.llvm.org> wrote:
> > >
> > > Author: ctopper
> > > Date: Thu Sep 26 16:22:15 2019
> > > New Revision: 373031
> > >
> > > URL: http://llvm.org/viewvc/llvm-project?rev=373031&view=rev
> > > Log:
> > > [X86] Remove CodeGenOnly instructions added in r373021, but keep the
> isel patterns and add COPY_TO_REGCLASS to them.
> > >
> > > Modified:
> > > llvm/trunk/lib/Target/X86/X86InstrAVX512.td
> > >
> > > Modified: llvm/trunk/lib/Target/X86/X86InstrAVX512.td
> > > URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrAVX512.td?rev=373031&r1=373030&r2=373031&view=diff
> > >
> ==============================================================================
> > > --- llvm/trunk/lib/Target/X86/X86InstrAVX512.td (original)
> > > +++ llvm/trunk/lib/Target/X86/X86InstrAVX512.td Thu Sep 26 16:22:15
> 2019
> > > @@ -3958,18 +3958,6 @@ multiclass avx512_move_scalar<string asm
> > > !strconcat(asm, "\t{$src, $dst {${mask}} {z}|",
> > > "$dst {${mask}} {z}, $src}"),
> > > [], _.ExeDomain>, EVEX, EVEX_KZ, Sched<[WriteFLoad]>;
> > > - let isCodeGenOnly = 1 in {
> > > - def rmk_alt : AVX512PI<0x10, MRMSrcMem, (outs _.FRC:$dst),
> > > - (ins _.FRC:$src0, _.KRCWM:$mask,
> _.ScalarMemOp:$src),
> > > - !strconcat(asm, "\t{$src, $dst {${mask}}|",
> > > - "$dst {${mask}}, $src}"),
> > > - [], _.ExeDomain>, EVEX, EVEX_K, Sched<[WriteFLoad]>;
> > > - def rmkz_alt : AVX512PI<0x10, MRMSrcMem, (outs _.FRC:$dst),
> > > - (ins _.KRCWM:$mask, _.ScalarMemOp:$src),
> > > - !strconcat(asm, "\t{$src, $dst {${mask}} {z}|",
> > > - "$dst {${mask}} {z}, $src}"),
> > > - [], _.ExeDomain>, EVEX, EVEX_KZ,
> Sched<[WriteFLoad]>;
> > > - }
> > > }
> > > def mr: AVX512PI<0x11, MRMDestMem, (outs), (ins _.ScalarMemOp:$dst,
> _.FRC:$src),
> > > !strconcat(asm, "\t{$src, $dst|$dst, $src}"),
> > > @@ -4235,9 +4223,12 @@ def : Pat<(f32 (X86selects VK1WM:$mask,
> > > (v4f32 (COPY_TO_REGCLASS FR32X:$src1, VR128X)))), FR32X)>;
> > >
> > > def : Pat<(f32 (X86selects VK1WM:$mask, (loadf32 addr:$src), (f32
> FR32X:$src0))),
> > > - (VMOVSSZrmk_alt FR32X:$src0, VK1WM:$mask, addr:$src)>;
> > > + (COPY_TO_REGCLASS
> > > + (v4f32 (VMOVSSZrmk (v4f32 (COPY_TO_REGCLASS FR32X:$src0,
> VR128X)),
> > > + VK1WM:$mask,
> addr:$src)),
> > > + FR32X)>;
> > > def : Pat<(f32 (X86selects VK1WM:$mask, (loadf32 addr:$src),
> fp32imm0)),
> > > - (VMOVSSZrmkz_alt VK1WM:$mask, addr:$src)>;
> > > + (COPY_TO_REGCLASS (v4f32 (VMOVSSZrmkz VK1WM:$mask,
> addr:$src)), FR32X)>;
> > >
> > > def : Pat<(f64 (X86selects VK1WM:$mask, (f64 FR64X:$src1), (f64
> FR64X:$src2))),
> > > (COPY_TO_REGCLASS (v2f64 (VMOVSDZrrk
> > > @@ -4250,9 +4241,12 @@ def : Pat<(f64 (X86selects VK1WM:$mask,
> > > (v2f64 (COPY_TO_REGCLASS FR64X:$src1, VR128X)))), FR64X)>;
> > >
> > > def : Pat<(f64 (X86selects VK1WM:$mask, (loadf64 addr:$src), (f64
> FR64X:$src0))),
> > > - (VMOVSDZrmk_alt FR64X:$src0, VK1WM:$mask, addr:$src)>;
> > > + (COPY_TO_REGCLASS
> > > + (v2f64 (VMOVSDZrmk (v2f64 (COPY_TO_REGCLASS FR64X:$src0,
> VR128X)),
> > > + VK1WM:$mask,
> addr:$src)),
> > > + FR64X)>;
> > > def : Pat<(f64 (X86selects VK1WM:$mask, (loadf64 addr:$src),
> fp64imm0)),
> > > - (VMOVSDZrmkz_alt VK1WM:$mask, addr:$src)>;
> > > + (COPY_TO_REGCLASS (v2f64 (VMOVSDZrmkz VK1WM:$mask,
> addr:$src)), FR64X)>;
> > >
> > > let hasSideEffects = 0, isCodeGenOnly = 1, ForceDisassemble = 1 in {
> > > def VMOVSSZrr_REV: AVX512<0x11, MRMDestReg, (outs VR128X:$dst),
> > >
> > >
> > > _______________________________________________
> > > llvm-commits mailing list
> > > llvm-commits at lists.llvm.org
> > > https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
> >
> > _______________________________________________
> > llvm-commits mailing list
> > llvm-commits at lists.llvm.org
> > https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>
>
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