基于rvv-llvm源码编译test-suite的报错问题 #15
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13696652781
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您好，由于rvv-llvm的基于的上游代码比较老了，所以之前可能 |
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由于最新上游代码已经支持了rvv指令集，因此rvv-llvm项目大概率不会和上游代码合并了。如果要使得测试通过的话，还是修改下测试文件吧 |
realqhc
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Nov 1, 2022
Found by msan -fsanitize-memory-use-after-dtor.
==8259==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x55dbec54d2b8 in dtorRecord(clang::interp::Block*, char*, clang::interp::Descriptor*) clang/lib/AST/Interp/Descriptor.cpp:150:22
plctlab#1 0x55dbec54bfcf in dtorArrayDesc(clang::interp::Block*, char*, clang::interp::Descriptor*) clang/lib/AST/Interp/Descriptor.cpp:97:7
plctlab#2 0x55dbec508578 in invokeDtor clang/lib/AST/Interp/InterpBlock.h:79:7
plctlab#3 0x55dbec508578 in clang::interp::Program::~Program() clang/lib/AST/Interp/Program.h:55:19
plctlab#4 0x55dbec50657a in operator() third_party/crosstool/v18/stable/toolchain/bin/../include/c++/v1/__memory/unique_ptr.h:55:5
plctlab#5 0x55dbec50657a in std::__msan::unique_ptr<clang::interp::Program, std::__msan::default_delete<clang::interp::Program>>::~unique_ptr() third_party/crosstool/v18/stable/toolchain/bin/../include/c++/v1/__memory/unique_ptr.h:261:7
plctlab#6 0x55dbec5035a1 in clang::interp::Context::~Context() clang/lib/AST/Interp/Context.cpp:27:22
plctlab#7 0x55dbebec1daa in operator() third_party/crosstool/v18/stable/toolchain/bin/../include/c++/v1/__memory/unique_ptr.h:55:5
plctlab#8 0x55dbebec1daa in std::__msan::unique_ptr<clang::interp::Context, std::__msan::default_delete<clang::interp::Context>>::~unique_ptr() third_party/crosstool/v18/stable/toolchain/bin/../include/c++/v1/__memory/unique_ptr.h:261:7
plctlab#9 0x55dbebe285f9 in clang::ASTContext::~ASTContext() clang/lib/AST/ASTContext.cpp:1038:40
plctlab#10 0x55dbe941ff13 in llvm::RefCountedBase<clang::ASTContext>::Release() const llvm/include/llvm/ADT/IntrusiveRefCntPtr.h:101:7
plctlab#11 0x55dbe94353ef in release llvm/include/llvm/ADT/IntrusiveRefCntPtr.h:159:38
plctlab#12 0x55dbe94353ef in release llvm/include/llvm/ADT/IntrusiveRefCntPtr.h:224:7
plctlab#13 0x55dbe94353ef in ~IntrusiveRefCntPtr llvm/include/llvm/ADT/IntrusiveRefCntPtr.h:191:27
plctlab#14 0x55dbe94353ef in clang::CompilerInstance::setASTContext(clang::ASTContext*) clang/lib/Frontend/CompilerInstance.cpp:178:3
plctlab#15 0x55dbe95ad0ad in clang::FrontendAction::EndSourceFile() clang/lib/Frontend/FrontendAction.cpp:1100:8
plctlab#16 0x55dbe9445fcf in clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) clang/lib/Frontend/CompilerInstance.cpp:1047:11
plctlab#17 0x55dbe6b3afef in clang::ExecuteCompilerInvocation(clang::CompilerInstance*) clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:266:25
plctlab#18 0x55dbe6b13288 in cc1_main(llvm::ArrayRef<char const*>, char const*, void*) clang/tools/driver/cc1_main.cpp:250:15
plctlab#19 0x55dbe6b0095f in ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) clang/tools/driver/driver.cpp:319:12
plctlab#20 0x55dbe6aff41c in clang_main(int, char**) clang/tools/driver/driver.cpp:395:12
plctlab#21 0x7f9be07fa632 in __libc_start_main
plctlab#22 0x55dbe6a702e9 in _start
Member fields were destroyed
#0 0x55dbe6a7da5d in __sanitizer_dtor_callback_fields compiler-rt/lib/msan/msan_interceptors.cpp:949:5
plctlab#1 0x55dbec5094ac in ~SmallVectorImpl llvm/include/llvm/ADT/SmallVector.h:479:7
plctlab#2 0x55dbec5094ac in ~SmallVectorImpl llvm/include/llvm/ADT/SmallVector.h:612:3
plctlab#3 0x55dbec5094ac in llvm::SmallVector<clang::interp::Record::Base, 8u>::~SmallVector() llvm/include/llvm/ADT/SmallVector.h:1207:3
plctlab#4 0x55dbec508e79 in clang::interp::Record::~Record() clang/lib/AST/Interp/Record.h:24:7
plctlab#5 0x55dbec508612 in clang::interp::Program::~Program() clang/lib/AST/Interp/Program.h:49:26
plctlab#6 0x55dbec50657a in operator() third_party/crosstool/v18/stable/toolchain/bin/../include/c++/v1/__memory/unique_ptr.h:55:5
plctlab#7 0x55dbec50657a in std::__msan::unique_ptr<clang::interp::Program, std::__msan::default_delete<clang::interp::Program>>::~unique_ptr() third_party/crosstool/v18/stable/toolchain/bin/../include/c++/v1/__memory/unique_ptr.h:261:7
plctlab#8 0x55dbec5035a1 in clang::interp::Context::~Context() clang/lib/AST/Interp/Context.cpp:27:22
plctlab#9 0x55dbebec1daa in operator() third_party/crosstool/v18/stable/toolchain/bin/../include/c++/v1/__memory/unique_ptr.h:55:5
plctlab#10 0x55dbebec1daa in std::__msan::unique_ptr<clang::interp::Context, std::__msan::default_delete<clang::interp::Context>>::~unique_ptr() third_party/crosstool/v18/stable/toolchain/bin/../include/c++/v1/__memory/unique_ptr.h:261:7
plctlab#11 0x55dbebe285f9 in clang::ASTContext::~ASTContext() clang/lib/AST/ASTContext.cpp:1038:40
plctlab#12 0x55dbe941ff13 in llvm::RefCountedBase<clang::ASTContext>::Release() const llvm/include/llvm/ADT/IntrusiveRefCntPtr.h:101:7
plctlab#13 0x55dbe94353ef in release llvm/include/llvm/ADT/IntrusiveRefCntPtr.h:159:38
plctlab#14 0x55dbe94353ef in release llvm/include/llvm/ADT/IntrusiveRefCntPtr.h:224:7
plctlab#15 0x55dbe94353ef in ~IntrusiveRefCntPtr llvm/include/llvm/ADT/IntrusiveRefCntPtr.h:191:27
plctlab#16 0x55dbe94353ef in clang::CompilerInstance::setASTContext(clang::ASTContext*) clang/lib/Frontend/CompilerInstance.cpp:178:3
plctlab#17 0x55dbe95ad0ad in clang::FrontendAction::EndSourceFile() clang/lib/Frontend/FrontendAction.cpp:1100:8
plctlab#18 0x55dbe9445fcf in clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) clang/lib/Frontend/CompilerInstance.cpp:1047:11
plctlab#19 0x55dbe6b3afef in clang::ExecuteCompilerInvocation(clang::CompilerInstance*) clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:266:25
plctlab#20 0x55dbe6b13288 in cc1_main(llvm::ArrayRef<char const*>, char const*, void*) clang/tools/driver/cc1_main.cpp:250:15
plctlab#21 0x55dbe6b0095f in ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) clang/tools/driver/driver.cpp:319:12
plctlab#22 0x55dbe6aff41c in clang_main(int, char**) clang/tools/driver/driver.cpp:395:12
plctlab#23 0x7f9be07fa632 in __libc_start_main
plctlab#24 0x55dbe6a702e9 in _start
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背景：基于 https://github.com/isrc-cas/rvv-llvm 进行回归测试测试时，依照 https://llvm.org/docs/TestSuiteGuide.html的指导进行编译，
具体报错：在进行make时，出现一个尚未遇到过的报错：
详细内容：
[ 63%] Building C object SingleSource/Regression/C/gcc-c-torture/execute/CMakeFiles/GCC-C-execute-strlen-7.dir/strlen-7.c.o /llvm/rvv-llvm/build/test-suite/SingleSource/Regression/C/gcc-c-torture/execute/strlen-7.c:34:28: error: use of unknown builtin '__builtin_malloc' [-Wimplicit-function-declaration] struct A *p = (struct A*)__builtin_malloc (sizeof *p); ^ 1 error generated. make[2]: *** [SingleSource/Regression/C/gcc-c-torture/execute/CMakeFiles/GCC-C-execute-strlen-7.dir/build.make:63: SingleSource/Regression/C/gcc-c-torture/execute/CMakeFiles/GCC-C-execute-strlen-7.dir/strlen-7.c.o] Error 1 make[1]: *** [CMakeFiles/Makefile2:47411: SingleSource/Regression/C/gcc-c-torture/execute/CMakeFiles/GCC-C-execute-strlen-7.dir/all] Error 2目前的问题：我更换了源代码，以 https://github.com/llvm/llvm-project作为源代码编译时，均未发现此报错。
为了避免是误操作导致，已经复现了三次，都会出现这个报错。
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