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  • P8291 Crashes with D134527
    ; opt bugpoint-reduced-simplified.ll -function-attrs -memcpyopt -dse -annotation-remarks -S -enable-new-pm=false
    target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
    target triple = "x86_64-grtev4-linux-gnu"
    ; Function Attrs: argmemonly nocallback nofree nounwind willreturn writeonly
    ...
    • Sep 28 2022, 7:40 AM
    • 20 Lines
    Author: bkramer
  • P8239 After loop-vectorize
    ; ModuleID = 'afterLV.ll'
    source_filename = "/home/vm/src/llvm-project-repro/llvm/lib/CodeGen/MachineBlockPlacement.cpp"
    target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
    target triple = "x86_64-unknown-linux-gnu"
    ...
    • Oct 7 2020, 1:39 PM
    • 1,134 Lines
    Author: dmajor
  • P8238 Before loop-vectorize
    ; ModuleID = 'beforeLV.ll'
    source_filename = "/home/vm/src/llvm-project-repro/llvm/lib/CodeGen/MachineBlockPlacement.cpp"
    target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
    target triple = "x86_64-unknown-linux-gnu"
    ...
    • Oct 7 2020, 1:38 PM
    • 827 Lines
    Author: dmajor
  • P8233 [llvm] 6102310 - [InstSimplify][EarlyCSE] Try to CSE PHI nodes in the same basic block
    | statistic name | baseline | proposed | Δ | % | |%| |
    |----------------------------------------------------|----------:|----------:|-------:|-------:|------:|
    | IR.NumPHICSE | 23781 | 22227 | -1554 | -6.53% | 6.53% |
    | adce.NumBranchesRemoved | 512 | 516 | 4 | 0.78% | 0.78% |
    | adce.NumRemoved | 151503 | 151509 | 6 | 0.00% | 0.00% |
    ...
    • Aug 27 2020, 1:54 PM
    • 182 Lines
    Author: lebedev.ri
  • P8166 AVX512 bug
    $ cat t.ll
    ; ModuleID = '__compute_module'
    source_filename = "__compute_module"
    target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
    target triple = "x86_64-grtev4-linux-gnu"
    ...
    • Oct 1 2019, 12:03 PM
    • 243 Lines
    Author: bkramer
  • P8111 aarch64 crash 2
    0:000> u .-20 L0x20
    00000372`b17105dc d100239c sub x28,x28,#8
    00000372`b17105e0 9100039f mov sp,x28
    00000372`b17105e4 cb30ef9c sub x28,x28,xip0 sxtx #3
    00000372`b17105e8 9278df9c and x28,x28,#-0x100
    ...
    • Oct 15 2018, 10:13 AM
    • 52 Lines
    Author: dmajor
  • P8110 aarch64 crash 1
    (1f68.20e8): Illegal instruction - code c000001d (first chance)
    (1f68.20e8): Illegal instruction - code c000001d (!!! second chance !!!)
    00000352`f36acc10 d36ffc50 lsr xip0,x2,#0x2F
    ...
    • Oct 8 2018, 7:52 AM
    • 39 Lines
    Author: dmajor
  • P8101 [WIP!][DomTreeUpdater] Benchmarks on Auto UpdateStrategy 3
    $ time cset shield --exec ./opt-auto3 -- -O3 -disable-output < ./clang-5.0.0.0.preopt.bc
    $ time cset shield --exec ./opt-auto3 -- -O3 -disable-output < ./clang-5.0.0.4.opt.bc
    $ time cset shield --exec ./opt-auto3 -- -O3 -disable-output < ./oggenc.preopt.bc
    cset: --> last message, executed args into cpuset "/user", new pid is: 28717
    ===-------------------------------------------------------------------------===
    ...
    • Aug 7 2018, 9:50 AM
    • 121 Lines
    Author: NutshellySima
  • P8100 [WIP!][DomTreeUpdater] Benchmarks on Auto UpdateStrategy 2
    $ time cset shield --exec ./opt-auto2 -- -O3 -disable-output < ./clang-5.0.0.0.preopt.bc
    $ time cset shield --exec ./opt-auto2 -- -O3 -disable-output < ./clang-5.0.0.4.opt.bc
    $ time cset shield --exec ./opt-auto2 -- -O3 -disable-output < ./oggenc.preopt.bc
    cset: --> last message, executed args into cpuset "/user", new pid is: 28408
    ===-------------------------------------------------------------------------===
    ...
    • Aug 7 2018, 9:49 AM
    • 118 Lines
    Author: NutshellySima
  • P8099 [WIP!][DomTreeUpdater] Benchmarks on Auto UpdateStrategy 1
    $ time cset shield --exec ./opt-auto1 -- -O3 -disable-output < ./clang-5.0.0.0.preopt.bc
    $ time cset shield --exec ./opt-auto1 -- -O3 -disable-output < ./clang-5.0.0.4.opt.bc
    $ time cset shield --exec ./opt-auto1 -- -O3 -disable-output < ./oggenc.preopt.bc
    cset: --> last message, executed args into cpuset "/user", new pid is: 28364
    ===-------------------------------------------------------------------------===
    ...
    • Aug 7 2018, 9:47 AM
    • 115 Lines
    Author: NutshellySima
  • P8098 [WIP!][DomTreeUpdater] Benchmarks on Lazy UpdateStrategy
    1. After applying D50300, you can see that the (forward) dominator tree recalculation takes most of the time in the DominatorTree Calculation:
    $ time cset shield --exec ./opt -- -O3 -disable-output < ./oggenc.preopt.bc
    cset: --> last message, executed args into cpuset "/user", new pid is: 8710
    ===-------------------------------------------------------------------------===
    DTU timing
    ...
    • Aug 7 2018, 9:45 AM
    • 191 Lines
    Author: NutshellySima
  • P8097 [WIP!][DomTreeUpdater] Benchmarks on preserving DT in SimplifyCFG pass
    $ time cset shield --exec ./opt-auto1-simplifycfg -- -O3 -disable-output < ./clang-5.0.0.4.opt.bc
    $ time cset shield --exec ./opt-auto1-simplifycfg -- -O3 -disable-output < ./oggenc.preopt.bc
    cset: --> last message, executed args into cpuset "/user", new pid is: 12447
    ===-------------------------------------------------------------------------===
    DTU timing
    ...
    • Aug 7 2018, 9:40 AM
    • 76 Lines
    Author: NutshellySima
  • P8045 ASAN and -fdebug-pass-manager for PR35210
    Starting llvm::Module pass manager run.
    Running pass: ForceFunctionAttrsPass on 35210.cpp
    Running pass: PassManager<llvm::Module> on 35210.cpp
    Starting llvm::Module pass manager run.
    Running pass: InferFunctionAttrsPass on 35210.cpp
    ...
    • Nov 6 2017, 6:11 PM
    • 678 Lines
    Author: dlj
  • P8043 Crasher - r316869
    /*
    Run with:
    bin/clang -cc1 -triple x86_64-grtev4-linux-gnu -emit-obj -O3 -std=gnu++11 -fexperimental-new-pass-manager -x c++ crasher.cc
    */
    ...
    • Nov 5 2017, 1:41 PM
    • 58 Lines
    • C++
    Author: dlj
  • P8006 Table gen has use-of-uninitialized-value error in llvm::HashString
    ==159694:159694==WARNING: MemorySanitizer: use-of-uninitialized-value
    #0 0x8c5b0b in llvm::HashString(llvm::StringRef, unsigned int) /usr/local/google/home/jakehehrlich/llvmtot/llvm/include/llvm/ADT/StringExtras.h:210:3
    #1 0x8c55cb in llvm::StringMapImpl::LookupBucketFor(llvm::StringRef) /usr/local/google/home/jakehehrlich/llvmtot/llvm/lib/Support/StringMap.cpp:86:28
    #2 0x9acf96 in std::__1::pair<llvm::StringMapIterator<llvm::StringInit*>, bool> llvm::StringMap<llvm::StringInit*, llvm::BumpPtrAllocatorImpl<llvm::MallocAllocator, 4096ul, 4096ul>&>::try_emplace<llvm::StringInit*>(llvm::StringRef, llvm::StringInit*&&) /usr/local/google/home/jakehehrlich/llvmtot/llvm/include/llvm/ADT/StringMap.h:400:25
    #3 0x9a31a9 in llvm::StringMap<llvm::StringInit*, llvm::BumpPtrAllocatorImpl<llvm::MallocAllocator, 4096ul, 4096ul>&>::insert(std::__1::pair<llvm::StringRef, llvm::StringInit*>) /usr/local/google/home/jakehehrlich/llvmtot/llvm/include/llvm/ADT/StringMap.h:391:12
    ...
    • Jul 20 2017, 6:36 PM
    • 18 Lines
    Author: jakehehrlich
  • P8005 Error building LLVM with MSan
    FAILED: tools/llvm-cvtres/Opts.inc.tmp
    cd /usr/local/google/home/jakehehrlich/llvmtot/msan_build && /usr/local/google/home/jakehehrlich/llvmtot/msan_build/bin/llvm-tblgen -gen-opt-parser-defs -I /usr/local/google/home/jakehehrlich/llvmtot/llvm/tools/llvm-cvtres -I /usr/local/google/home/jakehehrlich/llvmtot/llvm/include /usr/local/google/home/jakehehrlich/llvmtot/llvm/tools/llvm-cvtres/Opts.td -o tools/llvm-cvtres/Opts.inc.tmp -d tools/llvm-cvtres/Opts.inc.d
    Uninitialized bytes in __interceptor_memcmp at offset 0 inside [0x702000000c78, 1)
    ==138255:138255==WARNING: MemorySanitizer: use-of-uninitialized-value
    #0 0x7f305894be92 in std::char_traits<char>::compare(char const*, char const*, unsigned long) /build/gcc-4.8-mW1ufQ/gcc-4.8-4.8.4/build/x86_64-linux-gnu/libstdc++-v3/include/bits/char_traits.h:255
    ...
    • Jul 20 2017, 6:02 PM
    • 17 Lines
    Author: jakehehrlich
  • P7983 libc++abi mingw clang
    Scanning dependencies of target cxx_objects
    Scanning dependencies of target cxxabi_objects
    [ 0%] Building CXX object projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.obj
    [ 0%] Building CXX object projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.obj
    [ 0%] Building CXX object projects/libcxx/lib/CMakeFiles/cxx_objects.dir/__/src/algorithm.cpp.obj
    ...
    • Apr 3 2017, 6:17 AM
    • 1,312 Lines
    Author: mati865
  • P7982 libc++abi mingw gcc
    Scanning dependencies of target cxx_objects
    Scanning dependencies of target cxxabi_objects
    [ 0%] Building CXX object projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.obj
    [ 0%] Building CXX object projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.obj
    [ 0%] Building CXX object projects/libcxx/lib/CMakeFiles/cxx_objects.dir/__/src/algorithm.cpp.obj
    ...
    • Apr 3 2017, 6:14 AM
    • 184 Lines
    Author: mati865
  • P7981 libc++ mingw shared
    [ 19%] Linking CXX shared library ../../../bin/libc++abi.dll
    cd /D/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src && /D/msys64/mingw64/bin/cmake.exe -E remove -f CMakeFiles/cxxabi_shared.dir/objects.a
    cd /D/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src && /D/msys64/mingw64/bin/ar.exe cr CMakeFiles/cxxabi_shared.dir/objects.a "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_demangle.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_exception_storage.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_guard.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_handlers.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_new_delete.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_unexpected.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_vector.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_virtual.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/stdlib_exception.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/stdlib_typeinfo.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/abort_message.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/fallback_malloc.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/private_typeinfo.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.obj" "D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.obj"
    make -f tools/clang/include/clang/StaticAnalyzer/Checkers/CMakeFiles/ClangSACheckers.dir/build.make tools/clang/include/clang/StaticAnalyzer/Checkers/CMakeFiles/ClangSACheckers.dir/depend
    cd /D/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-x86_64/projects/libcxxabi/src && /D/msys64/mingw64/bin/g++.exe -D_GNU_SOURCE -Wa,-mbig-obj -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wno-maybe-uninitialized -Wdelete-non-virtual-dtor -Wno-comment -Werror=date-time -std=gnu++11 -std=c++11 -fstrict-aliasing -O2 -DNDEBUG -nodefaultlibs -pipe -shared -o ../../../bin/libc++abi.dll -Wl,--out-implib,../../../lib/libc++abi.dll.a -Wl,--major-image-version,1,--minor-image-version,0 -Wl,--whole-archive CMakeFiles/cxxabi_shared.dir/objects.a -Wl,--no-whole-archive -lpthread ../../../lib/libunwind.dll.a -lpthread -lmingw32 -lgcc -lgcc_eh -lmingwex -lmsvcrt -lgcc -lgcc_eh -lmingwex -lmsvcrt -lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -ladvapi32
    ...
    • Mar 31 2017, 5:35 PM
    • 175 Lines
    Author: mati865
  • P7980 libc++ mingw
    clang++ -stdlib=libc++ hello.cc -std=c++14
    D:\msys64\tmp\hello-859abe.o:(.xdata+0x10): undefined reference to `__gxx_personality_seh0'
    D:\msys64\tmp\hello-859abe.o:(.text[_ZNSt3__113__vector_baseIiNS_9allocatorIiEEED2Ev]+0x1e7): undefined reference to `operator delete(void*)'
    D:\msys64\tmp\hello-859abe.o:(.xdata[GCC_except_table2]+0x8): undefined reference to `__gxx_personality_seh0'
    D:\msys64\tmp\hello-859abe.o:(.text[__clang_call_terminate]+0x7): undefined reference to `__imp___cxa_begin_catch'
    ...
    • Mar 31 2017, 11:00 AM
    • 1,631 Lines
    Author: mati865
  • P7976 libc++ with mingw-w64 clang
    Performing C++ SOURCE FILE Test LIBCXXABI_HAS_FPIC_FLAG failed with the following output:
    Change Dir: D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-i686/CMakeFiles/CMakeTmp
    Run Build Command:"D:/msys64/usr/bin/make.exe" "cmTC_9c38b/fast"
    /usr/bin/make -f CMakeFiles/cmTC_9c38b.dir/build.make CMakeFiles/cmTC_9c38b.dir/build
    ...
    • Mar 17 2017, 3:02 PM
    • 758 Lines
    • Plain Text
    Author: mati865
  • P7975 libc++ with mingw-w64 gcc
    Performing C++ SOURCE FILE Test LIBCXXABI_HAS_WMISMATCHED_TAGS_FLAG failed with the following output:
    Change Dir: D:/projekty/msys2/MINGW-packages/mingw-w64-clang/src/build-i686/CMakeFiles/CMakeTmp
    Run Build Command:"D:/msys64/usr/bin/make.exe" "cmTC_e95ed/fast"
    /usr/bin/make -f CMakeFiles/cmTC_e95ed.dir/build.make CMakeFiles/cmTC_e95ed.dir/build
    ...
    • Mar 17 2017, 3:01 PM
    • 784 Lines
    • Plain Text
    Author: mati865
  • P7968 Include directories
    GCC:
    ```
    $ echo | gcc -E -x c -Wp,-v -
    # 1 "<stdin>"
    # 1 "<built-in>"
    ...
    • Feb 3 2017, 5:56 AM
    • 145 Lines
    Author: mati865