Stack overflow in __ubsan_handle_dynamic_type_cache_miss (?) #80
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compiler-rt:ubsan
Undefined behavior sanitizer
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On Thu, Dec 26, 2019 at 02:09:33AM -0800, DimanNe wrote:
I am building both my application (gtest, to be precise) and `libc` from sources (branch `release/9.x`) with clang-9 with ubsan (`-fsanitize=undefined`).
Are you building the sanitzers themselve with ubsan?
Joerg
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If I correctly understand that by sanitisers you mean I build
with standard |
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Interesting, it appears the libcxxabi should not be compiled with
-fsanitize=vptr.
Try -fno-sanitize=vptr in libcxxabi, or blacklist some of the sources with
-fsanitize-blacklist.
…On Thu, Dec 26, 2019 at 2:30 AM DimanNe ***@***.***> wrote:
If I correctly understand that by sanitisers you mean
llvm-project/compiler-rt/lib/ubsan/, then no. I do not build them at all.
I build
- llvm-project/libcxx
- llvm-project/libcxxabi
- my app (which is gtest)
with standard clang-9 (which comes from Ubuntu 19.10 repos) with
-fsanitize=undefined option.
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Thank you for the hint! So, I added and verified that I have the option in compile lines for and it did not work. However, when I specified it globally: |
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Yes, the order of the flags matters. -fno-sanitize subtracts from the
current set of sanitizers (reading the command line left-to-right), and
-fsanitize adds to it. You can run clang -### to see what it ends up with.
…On Fri, Dec 27, 2019 at 2:34 PM DimanNe ***@***.***> wrote:
Thank you for the hint!
------------------------------
So, I added -fno-sanitize=vptr directly into
contrib/llvm-project/libcxxabi/CMakeLists.txt:
add_compile_flags_if_supported(-fno-sanitize=vptr)
and verified that I have the option in compile lines for libcxxabi:
cd /home/dimanne/devel/build-scripts-Desktop-Debug-ubsan/contrib/llvm-project/libcxxabi/src &&
/usr/bin/clang++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -D_LIBCPP_DISABLE_EXTERN_TEMPLATE
-D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
-D_LIBCXXABI_BUILDING_LIBRARY -D_LIBCXXABI_HAS_COMMENT_LIB_PRAGMA
-I/home/dimanne/devel/scripts/contrib/llvm-project/libcxxabi/include
-I/home/dimanne/devel/scripts/contrib/llvm-project/libcxx/include
-g -fPIC -Wno-everything -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts
-Wconversion -Wmismatched-tags -Wmissing-braces -Wnewline-eof -Wunused-function
-Wshadow -Wshorten-64-to-32 -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2
-Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef
-fno-sanitize=vptr # <---------------- here it is ----------------
-Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -fno-omit-frame-pointer
-fno-optimize-sibling-calls -fsanitize-blacklist=/home/dimanne/devel/scripts/sanitiser_blacklist.txt
-fsanitize=undefined -std=c++11 -o CMakeFiles/cxxabi_static.dir/cxa_exception_storage.cpp.o
-c /home/dimanne/devel/scripts/contrib/llvm-project/libcxxabi/src/cxa_exception_storage.cpp
and it did *not* work.
Perhaps, I missed something. Maybe the order of some flags should be
different? May be -fsanitize=undefined should be followed by
-fno-sanitize=vptr?
------------------------------
However, when I specified it globally:
instead of add_compile_options(-fsanitize=undefined)
I have add_compile_options(-fsanitize=undefined -fno-sanitize=vptr)
my tests have passed perfectly fine.
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dnsampaio
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Jan 10, 2020
Summary: This patch fixes pr23772 [ARM] r226200 can emit illegal thumb2 instruction: "sub sp, r12, #80". The violation was that SUB and ADD (reg, immediate) instructions can only write to SP if the source register is also SP. So the above instructions was unpredictable. To enforce that the instruction t2(ADD|SUB)ri does not write to SP we now enforce the destination register to be rGPR (That exclude PC and SP). Different than the ARM specification, that defines one instruction that can read from SP, and one that can't, here we inserted one that can't write to SP, and other that can only write to SP as to reuse most of the hard-coded size optimizations. When performing this change, it uncovered that emitting Thumb2 Reg plus Immediate could not emit all variants of ADD SP, SP #imm instructions before so it was refactored to be able to. (see test/CodeGen/Thumb2/mve-stacksplot.mir where we use a subw sp, sp, Imm12 variant ) It also uncovered a disassembly issue of adr.w instructions, that were only written as SUBW instructions (see llvm/test/MC/Disassembler/ARM/thumb2.txt). Reviewers: eli.friedman, dmgreen, carwil, olista01, efriedma Reviewed By: efriedma Subscribers: john.brawn, efriedma, ostannard, kristof.beyls, hiraditya, dmgreen, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70680
dnsampaio
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Jan 14, 2020
Summary: This patch fixes pr23772 [ARM] r226200 can emit illegal thumb2 instruction: "sub sp, r12, #80". The violation was that SUB and ADD (reg, immediate) instructions can only write to SP if the source register is also SP. So the above instructions was unpredictable. To enforce that the instruction t2(ADD|SUB)ri does not write to SP we now enforce the destination register to be rGPR (That exclude PC and SP). Different than the ARM specification, that defines one instruction that can read from SP, and one that can't, here we inserted one that can't write to SP, and other that can only write to SP as to reuse most of the hard-coded size optimizations. When performing this change, it uncovered that emitting Thumb2 Reg plus Immediate could not emit all variants of ADD SP, SP #imm instructions before so it was refactored to be able to. (see test/CodeGen/Thumb2/mve-stacksplot.mir where we use a subw sp, sp, Imm12 variant ) It also uncovered a disassembly issue of adr.w instructions, that were only written as SUBW instructions (see llvm/test/MC/Disassembler/ARM/thumb2.txt). Reviewers: eli.friedman, dmgreen, carwil, olista01, efriedma, andreadb Reviewed By: efriedma Subscribers: gbedwell, john.brawn, efriedma, ostannard, kristof.beyls, hiraditya, dmgreen, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70680
jamesmth
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Dec 5, 2022
Since AGR clobbers CC it should not be used here. Fixes https://bugs.llvm.org/show_bug.cgi?id=47736. Review: Ulrich Weigand Differential Revision: https://reviews.llvm.org/D89034 (cherry picked from commit d851495) Co-authored-by: Jonas Paulsson <paulsson@linux.vnet.ibm.com>
jeffreytan81
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Sep 21, 2023
… provider We noticed some performance issue while in lldb-vscode for grabing the name of the SBValue. Profiling shows SBValue::GetName() can cause synthetic children provider of shared/unique_ptr to deference underlying object and complete it type. This patch lazily moves the dereference from synthetic child provider's Update() method to GetChildAtIndex() so that SBValue::GetName() won't trigger the slow code path. Here is the culprit slow code path: ``` ... frame llvm#59: 0x00007ff4102e0660 liblldb.so.15`SymbolFileDWARF::CompleteType(this=<unavailable>, compiler_type=0x00007ffdd9829450) at SymbolFileDWARF.cpp:1567:25 [opt] ... frame llvm#67: 0x00007ff40fdf9bd4 liblldb.so.15`lldb_private::ValueObject::Dereference(this=0x0000022bb5dfe980, error=0x00007ffdd9829970) at ValueObject.cpp:2672:41 [opt] frame llvm#68: 0x00007ff41011bb0a liblldb.so.15`(anonymous namespace)::LibStdcppSharedPtrSyntheticFrontEnd::Update(this=0x000002298fb94380) at LibStdcpp.cpp:403:40 [opt] frame llvm#69: 0x00007ff41011af9a liblldb.so.15`lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator(lldb_private::CXXSyntheticChildren*, std::shared_ptr<lldb_private::ValueObject>) [inlined] (anonymous namespace)::LibStdcppSharedPtrSyntheticFrontEnd::LibStdcppSharedPtrSyntheticFrontEnd(this=0x000002298fb94380, valobj_sp=<unavailable>) at LibStdcpp.cpp:371:5 [opt] ... frame llvm#78: 0x00007ff40fdf6e42 liblldb.so.15`lldb_private::ValueObject::CalculateSyntheticValue(this=0x000002296c66a500) at ValueObject.cpp:1836:27 [opt] frame llvm#79: 0x00007ff40fdf1939 liblldb.so.15`lldb_private::ValueObject::GetSyntheticValue(this=<unavailable>) at ValueObject.cpp:1867:3 [opt] frame llvm#80: 0x00007ff40fc89008 liblldb.so.15`ValueImpl::GetSP(this=0x0000022c71b90de0, stop_locker=0x00007ffdd9829d00, lock=0x00007ffdd9829d08, error=0x00007ffdd9829d18) at SBValue.cpp:141:46 [opt] frame llvm#81: 0x00007ff40fc7d82a liblldb.so.15`lldb::SBValue::GetSP(ValueLocker&) const [inlined] ValueLocker::GetLockedSP(this=0x00007ffdd9829d00, in_value=<unavailable>) at SBValue.cpp:208:21 [opt] frame llvm#82: 0x00007ff40fc7d817 liblldb.so.15`lldb::SBValue::GetSP(this=0x00007ffdd9829d90, locker=0x00007ffdd9829d00) const at SBValue.cpp:1047:17 [opt] frame llvm#83: 0x00007ff40fc7da6f liblldb.so.15`lldb::SBValue::GetName(this=0x00007ffdd9829d90) at SBValue.cpp:294:32 [opt] ... ``` Differential Revision: https://reviews.llvm.org/D159542
jeffreytan81
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#67069) We noticed some performance issue while in lldb-vscode for grabing the name of the SBValue. Profiling shows SBValue::GetName() can cause synthetic children provider of shared/unique_ptr to deference underlying object and complete it type. This patch lazily moves the dereference from synthetic child provider's Update() method to GetChildAtIndex() so that SBValue::GetName() won't trigger the slow code path. Here is the culprit slow code path: ``` ... frame #59: 0x00007ff4102e0660 liblldb.so.15`SymbolFileDWARF::CompleteType(this=<unavailable>, compiler_type=0x00007ffdd9829450) at SymbolFileDWARF.cpp:1567:25 [opt] ... frame #67: 0x00007ff40fdf9bd4 liblldb.so.15`lldb_private::ValueObject::Dereference(this=0x0000022bb5dfe980, error=0x00007ffdd9829970) at ValueObject.cpp:2672:41 [opt] frame #68: 0x00007ff41011bb0a liblldb.so.15`(anonymous namespace)::LibStdcppSharedPtrSyntheticFrontEnd::Update(this=0x000002298fb94380) at LibStdcpp.cpp:403:40 [opt] frame #69: 0x00007ff41011af9a liblldb.so.15`lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator(lldb_private::CXXSyntheticChildren*, std::shared_ptr<lldb_private::ValueObject>) [inlined] (anonymous namespace)::LibStdcppSharedPtrSyntheticFrontEnd::LibStdcppSharedPtrSyntheticFrontEnd(this=0x000002298fb94380, valobj_sp=<unavailable>) at LibStdcpp.cpp:371:5 [opt] ... frame #78: 0x00007ff40fdf6e42 liblldb.so.15`lldb_private::ValueObject::CalculateSyntheticValue(this=0x000002296c66a500) at ValueObject.cpp:1836:27 [opt] frame #79: 0x00007ff40fdf1939 liblldb.so.15`lldb_private::ValueObject::GetSyntheticValue(this=<unavailable>) at ValueObject.cpp:1867:3 [opt] frame #80: 0x00007ff40fc89008 liblldb.so.15`ValueImpl::GetSP(this=0x0000022c71b90de0, stop_locker=0x00007ffdd9829d00, lock=0x00007ffdd9829d08, error=0x00007ffdd9829d18) at SBValue.cpp:141:46 [opt] frame #81: 0x00007ff40fc7d82a liblldb.so.15`lldb::SBValue::GetSP(ValueLocker&) const [inlined] ValueLocker::GetLockedSP(this=0x00007ffdd9829d00, in_value=<unavailable>) at SBValue.cpp:208:21 [opt] frame #82: 0x00007ff40fc7d817 liblldb.so.15`lldb::SBValue::GetSP(this=0x00007ffdd9829d90, locker=0x00007ffdd9829d00) const at SBValue.cpp:1047:17 [opt] frame #83: 0x00007ff40fc7da6f liblldb.so.15`lldb::SBValue::GetName(this=0x00007ffdd9829d90) at SBValue.cpp:294:32 [opt] ... ``` Differential Revision: https://reviews.llvm.org/D159542
RevySR
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Apr 3, 2024
* [Clang][XTHeadVector] implement 12.9 `vmul/vmulh/vmulhu/vmulhsu` * [Clang][XTHeadVector] test 12.9 `vmul/vmulh/vmulhu/vmulhsu`
RevySR
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Jul 27, 2024
* [Clang][XTHeadVector] implement 12.9 `vmul/vmulh/vmulhu/vmulhsu` * [Clang][XTHeadVector] test 12.9 `vmul/vmulh/vmulhu/vmulhsu`
faisalv
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Aug 4, 2024
This is somewhat tricky, since the character array needs to be associated to a declaration (i.e., a hidden variable), but the declaration won't be parsed and therefore won't get handed off to CodeGen. So unless we do something to tell CodeGen about the variable, it won't get emitted and we'll get linker errors. So we (for now, anyway) introduce a similar mechanism to what's already used for "#pragma weak"; we track any generated decl's in an array held by 'Sema', and pass those explicitly to CodeGen after parsing the AST. We also cache any such generated variables in the ASTContext, partly as an optimization, but mostly to ensure that each such variable obtains a (TU-)unique name. Closes issue llvm#80.
alexanderguy
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* Remove SBF_JMP32 class
kadircet
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Dec 3, 2024
following ASAN failure is fixed with this patch.
We store cleanups in EvalInfo, which are usually run with certain
ScopeRAII objects.
We can have temporaries in the cleanup stack, backed by CallStackFrame.
If such temporaries aren't destroyed before the enclosing
CallStackFrame, we end up accessing the freed temporary to run the
cleanup.
```
=================================================================
==553356==ERROR: AddressSanitizer: heap-use-after-free on address 0x7c63f05a65b0 at pc 0x561e4add6ae7 bp 0x7fff430f7770 sp 0x7fff430f7768
READ of size 4 at 0x7c63f05a65b0 thread T0
#0 0x561e4add6ae6 in clang::APValue::operator=(clang::APValue&&) third_party/llvm/llvm-project/clang/lib/AST/APValue.cpp:394:9
#1 0x561e4b41fd0b in (anonymous namespace)::Cleanup::endLifetime((anonymous namespace)::EvalInfo&, bool) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:749:27
#2 0x561e4b4d42a7 in (anonymous namespace)::ScopeRAII<((anonymous namespace)::ScopeKind)1>::cleanup((anonymous namespace)::EvalInfo&, bool, unsigned int) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:1449:41
llvm#3 0x561e4b4246ec in destroy third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:1427:17
llvm#4 0x561e4b4246ec in ~ScopeRAII third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:1433:9
llvm#5 0x561e4b4246ec in EvaluateCond((anonymous namespace)::EvalInfo&, clang::VarDecl const*, clang::Expr const*, bool&) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5185:1
llvm#6 0x561e4b41ea8c in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5555:17
llvm#7 0x561e4b423755 in EvaluateLoopBody((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5221:24
llvm#8 0x561e4b41d597 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5635:28
llvm#9 0x561e4b41d341 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5521:28
llvm#10 0x561e4b40113c in HandleFunctionCall(clang::SourceLocation, clang::FunctionDecl const*, (anonymous namespace)::LValue const*, clang::Expr const*, llvm::ArrayRef<clang::Expr const*>, (anonymous namespace)::CallRef, clang::Stmt const*, (anonymous namespace)::EvalInfo&, clang::APValue&, (anonymous namespace)::LValue const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6520:24
llvm#11 0x561e4b4c9652 in handleCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8332:10
llvm#12 0x561e4b4c9652 in VisitCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8132:10
llvm#13 0x561e4b4c9652 in visitNonBuiltinCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9749:28
llvm#14 0x561e4b4c9652 in (anonymous namespace)::PointerExprEvaluator::VisitCallExpr(clang::CallExpr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9763:12
llvm#15 0x561e4b4c3e5b in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::PointerExprEvaluator, bool>::Visit(clang::Stmt const*) blaze-out/k8-opt-asan/genfiles/third_party/llvm/llvm-project/clang/include/clang/AST/StmtNodes.inc
llvm#16 0x561e4b3ff820 in EvaluatePointer third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9458:60
llvm#17 0x561e4b3ff820 in Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16343:10
llvm#18 0x561e4b41f204 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5511:17
llvm#19 0x561e4b41d341 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5521:28
llvm#20 0x561e4b40113c in HandleFunctionCall(clang::SourceLocation, clang::FunctionDecl const*, (anonymous namespace)::LValue const*, clang::Expr const*, llvm::ArrayRef<clang::Expr const*>, (anonymous namespace)::CallRef, clang::Stmt const*, (anonymous namespace)::EvalInfo&, clang::APValue&, (anonymous namespace)::LValue const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6520:24
llvm#21 0x561e4b4c9652 in handleCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8332:10
llvm#22 0x561e4b4c9652 in VisitCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8132:10
llvm#23 0x561e4b4c9652 in visitNonBuiltinCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9749:28
llvm#24 0x561e4b4c9652 in (anonymous namespace)::PointerExprEvaluator::VisitCallExpr(clang::CallExpr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9763:12
llvm#25 0x561e4b4c3e5b in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::PointerExprEvaluator, bool>::Visit(clang::Stmt const*) blaze-out/k8-opt-asan/genfiles/third_party/llvm/llvm-project/clang/include/clang/AST/StmtNodes.inc
llvm#26 0x561e4b3ff820 in EvaluatePointer third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9458:60
llvm#27 0x561e4b3ff820 in Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16343:10
llvm#28 0x561e4b4ad3c2 in EvaluateAsBooleanCondition third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:2742:8
llvm#29 0x561e4b4ad3c2 in (anonymous namespace)::IntExprEvaluator::VisitCastExpr(clang::CastExpr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:14877:10
llvm#30 0x561e4b49f192 in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::IntExprEvaluator, bool>::Visit(clang::Stmt const*) third_party/llvm/llvm-project/clang/include/clang/AST/StmtVisitor.h
llvm#31 0x561e4b3ff8af in Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16339:41
llvm#32 0x561e4b4a0dd2 in EvaluateAsBooleanCondition third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:2742:8
llvm#33 0x561e4b4a0dd2 in (anonymous namespace)::IntExprEvaluator::VisitUnaryOperator(clang::UnaryOperator const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:14795:10
llvm#34 0x561e4b49f0db in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::IntExprEvaluator, bool>::Visit(clang::Stmt const*) third_party/llvm/llvm-project/clang/include/clang/AST/StmtVisitor.h
llvm#35 0x561e4b3ff8af in Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16339:41
llvm#36 0x561e4b3fbe35 in EvaluateAsRValue((anonymous namespace)::EvalInfo&, clang::Expr const*, clang::APValue&) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16455:8
llvm#37 0x561e4b3fc278 in clang::Expr::EvaluateForOverflow(clang::ASTContext const&) const third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16903:11
llvm#38 0x561e4a020e69 in clang::Sema::CheckForIntOverflow(clang::Expr const*) third_party/crosstool/v18/stable/src/libcxx/include/__memory/uninitialized_algorithms.h
llvm#39 0x561e4a021cd7 in clang::Sema::CheckCompletedExpr(clang::Expr*, clang::SourceLocation, bool) third_party/llvm/llvm-project/clang/lib/Sema/SemaChecking.cpp:12989:5
llvm#40 0x561e4a4b9d2e in clang::Sema::ActOnFinishFullExpr(clang::Expr*, clang::SourceLocation, bool, bool, bool) third_party/llvm/llvm-project/clang/lib/Sema/SemaExprCXX.cpp:9225:3
llvm#41 0x561e4a372e20 in MakeFullExpr third_party/llvm/llvm-project/clang/include/clang/Sema/Sema.h:7292:9
llvm#42 0x561e4a372e20 in clang::Sema::ActOnCondition(clang::Scope*, clang::SourceLocation, clang::Expr*, clang::Sema::ConditionKind, bool) third_party/llvm/llvm-project/clang/lib/Sema/SemaExpr.cpp:20363:26
llvm#43 0x561e49b5407d in clang::Parser::ParseCXXCondition(clang::ActionResult<clang::Stmt*, true>*, clang::SourceLocation, clang::Sema::ConditionKind, bool, clang::Parser::ForRangeInfo*, bool) third_party/llvm/llvm-project/clang/lib/Parse/ParseExprCXX.cpp:2204:20
llvm#44 0x561e49c000a8 in clang::Parser::ParseParenExprOrCondition(clang::ActionResult<clang::Stmt*, true>*, clang::Sema::ConditionResult&, clang::SourceLocation, clang::Sema::ConditionKind, clang::SourceLocation&, clang::SourceLocation&) third_party/llvm/llvm-project/clang/lib/Parse/ParseStmt.cpp:1376:12
llvm#45 0x561e49bf6c2f in clang::Parser::ParseIfStatement(clang::SourceLocation*) third_party/llvm/llvm-project/clang/lib/Parse/ParseStmt.cpp:1587:9
llvm#46 0x561e49bf2d6d in clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) third_party/llvm/llvm-project/clang/lib/Parse/ParseStmt.cpp:325:12
llvm#47 0x561e49bf0a6e in clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) third_party/llvm/llvm-project/clang/lib/Parse/ParseStmt.cpp:125:20
llvm#48 0x561e49bff57d in clang::Parser::ParseCompoundStatementBody(bool) third_party/llvm/llvm-project/clang/lib/Parse/ParseStmt.cpp:1267:11
llvm#49 0x561e49c0136e in clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) third_party/llvm/llvm-project/clang/lib/Parse/ParseStmt.cpp:2577:21
llvm#50 0x561e49afa4fd in clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) third_party/llvm/llvm-project/clang/lib/Parse/Parser.cpp:1520:10
llvm#51 0x561e49ba6e44 in clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) third_party/llvm/llvm-project/clang/lib/Parse/ParseDecl.cpp:2460:17
llvm#52 0x561e49af8746 in clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) third_party/llvm/llvm-project/clang/lib/Parse/Parser.cpp:1244:10
llvm#53 0x561e49af79f8 in clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) third_party/llvm/llvm-project/clang/lib/Parse/Parser.cpp:1266:12
llvm#54 0x561e49af5d96 in clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) third_party/llvm/llvm-project/clang/lib/Parse/Parser.cpp:1069:14
llvm#55 0x561e49b6c42c in clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo, 4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&) third_party/llvm/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:276:7
llvm#56 0x561e49b6c5d7 in clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo, 4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&) third_party/llvm/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:298:3
llvm#57 0x561e49b6b7c3 in clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation) third_party/llvm/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:253:3
llvm#58 0x561e49ba337a in clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) third_party/llvm/llvm-project/clang/lib/Parse/ParseDecl.cpp
llvm#59 0x561e49af563a in clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) third_party/llvm/llvm-project/clang/lib/Parse/Parser.cpp:985:14
llvm#60 0x561e49af3779 in clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) third_party/llvm/llvm-project/clang/lib/Parse/Parser.cpp:758:12
llvm#61 0x561e49aec6ae in clang::ParseAST(clang::Sema&, bool, bool) third_party/llvm/llvm-project/clang/lib/Parse/ParseAST.cpp:171:20
llvm#62 0x561e496f13ae in clang::ASTFrontendAction::ExecuteAction() third_party/llvm/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1191:3
llvm#63 0x561e496f0874 in clang::FrontendAction::Execute() third_party/llvm/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1077:8
llvm#64 0x561e49644511 in clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) third_party/llvm/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:1062:33
llvm#65 0x561e47ffe1b9 in clang::ExecuteCompilerInvocation(clang::CompilerInstance*) third_party/llvm/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:296:25
llvm#66 0x561e47fee631 in cc1_main(llvm::ArrayRef<char const*>, char const*, void*) third_party/llvm/llvm-project/clang/tools/driver/cc1_main.cpp:286:15
llvm#67 0x561e47fe9912 in ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) third_party/llvm/llvm-project/clang/tools/driver/driver.cpp:218:12
llvm#68 0x561e47fec7e6 in operator() third_party/llvm/llvm-project/clang/tools/driver/driver.cpp:360:14
llvm#69 0x561e47fec7e6 in int llvm::function_ref<int (llvm::SmallVectorImpl<char const*>&)>::callback_fn<clang_main(int, char**, llvm::ToolContext const&)::$_0>(long, llvm::SmallVectorImpl<char const*>&) third_party/llvm/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:46:12
#70 0x561e498bc531 in operator() third_party/llvm/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:69:12
llvm#71 0x561e498bc531 in operator() third_party/llvm/llvm-project/clang/lib/Driver/Job.cpp:437:34
llvm#72 0x561e498bc531 in void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::__u::optional<llvm::StringRef>>, std::__u::basic_string<char, std::__u::char_traits<char>, std::__u::allocator<char>>*, bool*) const::$_0>(long) third_party/llvm/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:46:12
llvm#73 0x561e4ff969e8 in operator() third_party/llvm/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:69:12
llvm#74 0x561e4ff969e8 in llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) third_party/llvm/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:426:3
llvm#75 0x561e498bb331 in clang::driver::CC1Command::Execute(llvm::ArrayRef<std::__u::optional<llvm::StringRef>>, std::__u::basic_string<char, std::__u::char_traits<char>, std::__u::allocator<char>>*, bool*) const third_party/llvm/llvm-project/clang/lib/Driver/Job.cpp:437:12
llvm#76 0x561e49860e38 in clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const third_party/llvm/llvm-project/clang/lib/Driver/Compilation.cpp:196:15
llvm#77 0x561e49861154 in clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::__u::pair<int, clang::driver::Command const*>>&, bool) const third_party/llvm/llvm-project/clang/lib/Driver/Compilation.cpp:250:19
llvm#78 0x561e49886037 in clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::__u::pair<int, clang::driver::Command const*>>&) third_party/llvm/llvm-project/clang/lib/Driver/Driver.cpp:1968:5
llvm#79 0x561e47fe8c7d in clang_main(int, char**, llvm::ToolContext const&) third_party/llvm/llvm-project/clang/tools/driver/driver.cpp:396:21
llvm#80 0x561e47fe6ae7 in main blaze-out/k8-opt-asan/bin/third_party/llvm/llvm-project/clang/clang-driver.cpp:17:10
llvm#81 0x7fb3f13c33d3 in __libc_start_main (/usr/grte/v5/lib64/libc.so.6+0x613d3) (BuildId: 9a996398ce14a94560b0c642eb4f6e94)
llvm#82 0x561e47f0a229 in _start /usr/grte/v5/debug-src/src/csu/../sysdeps/x86_64/start.S:120
0x7c63f05a65b0 is located 48 bytes inside of 104-byte region [0x7c63f05a6580,0x7c63f05a65e8)
freed by thread T0 here:
#0 0x561e47fe5342 in operator delete(void*, unsigned long) third_party/llvm/llvm-project/compiler-rt/lib/asan/asan_new_delete.cpp:155:3
#1 0x561e4b4c2fcc in __libcpp_operator_delete<void *, unsigned long> third_party/crosstool/v18/stable/src/libcxx/include/new:286:3
#2 0x561e4b4c2fcc in __do_deallocate_handle_size<> third_party/crosstool/v18/stable/src/libcxx/include/new:310:10
llvm#3 0x561e4b4c2fcc in __libcpp_deallocate third_party/crosstool/v18/stable/src/libcxx/include/new:323:12
llvm#4 0x561e4b4c2fcc in deallocate third_party/crosstool/v18/stable/src/libcxx/include/__memory/allocator.h:135:7
llvm#5 0x561e4b4c2fcc in deallocate third_party/crosstool/v18/stable/src/libcxx/include/__memory/allocator_traits.h:313:9
llvm#6 0x561e4b4c2fcc in std::__u::__tree<std::__u::__value_type<std::__u::pair<void const*, unsigned int>, clang::APValue>, std::__u::__map_value_compare<std::__u::pair<void const*, unsigned int>, std::__u::__value_type<std::__u::pair<void const*, unsigned int>, clang::APValue>, std::__u::less<std::__u::pair<void const*, unsigned int>>, true>, std::__u::allocator<std::__u::__value_type<std::__u::pair<void const*, unsigned int>, clang::APValue>>>::destroy(std::__u::__tree_node<std::__u::__value_type<std::__u::pair<void const*, unsigned int>, clang::APValue>, void*>*) third_party/crosstool/v18/stable/src/libcxx/include/__tree:1549:5
llvm#7 0x561e4b400340 in ~__tree third_party/crosstool/v18/stable/src/libcxx/include/__tree:1539:3
llvm#8 0x561e4b400340 in ~map third_party/crosstool/v18/stable/src/libcxx/include/map:1138:112
llvm#9 0x561e4b400340 in (anonymous namespace)::CallStackFrame::~CallStackFrame() third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:1524:1
llvm#10 0x561e4b49697b in HandleConstructorCall(clang::Expr const*, (anonymous namespace)::LValue const&, (anonymous namespace)::CallRef, clang::CXXConstructorDecl const*, (anonymous namespace)::EvalInfo&, clang::APValue&) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6742:1
llvm#11 0x561e4b400cca in HandleConstructorCall(clang::Expr const*, (anonymous namespace)::LValue const&, llvm::ArrayRef<clang::Expr const*>, clang::CXXConstructorDecl const*, (anonymous namespace)::EvalInfo&, clang::APValue&) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6753:10
llvm#12 0x561e4b45cfae in (anonymous namespace)::RecordExprEvaluator::VisitCXXConstructExpr(clang::CXXConstructExpr const*, clang::QualType) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:10792:10
llvm#13 0x561e4b45dae7 in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::RecordExprEvaluator, bool>::Visit(clang::Stmt const*) blaze-out/k8-opt-asan/genfiles/third_party/llvm/llvm-project/clang/include/clang/AST/StmtNodes.inc
llvm#14 0x561e4b3f963e in EvaluateRecord third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:10917:50
llvm#15 0x561e4b3f963e in EvaluateInPlace(clang::APValue&, (anonymous namespace)::EvalInfo&, (anonymous namespace)::LValue const&, clang::Expr const*, bool) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16425:14
llvm#16 0x561e4b3ff0b3 in EvaluateCallArg(clang::ParmVarDecl const*, clang::Expr const*, (anonymous namespace)::CallRef, (anonymous namespace)::EvalInfo&, bool) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6403:8
llvm#17 0x561e4b440530 in EvaluateArgs(llvm::ArrayRef<clang::Expr const*>, (anonymous namespace)::CallRef, (anonymous namespace)::EvalInfo&, clang::FunctionDecl const*, bool) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6442:10
llvm#18 0x561e4b4a503e in handleCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8298:12
llvm#19 0x561e4b4a503e in VisitCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8132:10
llvm#20 0x561e4b4a503e in (anonymous namespace)::IntExprEvaluator::VisitCallExpr(clang::CallExpr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:12700:33
llvm#21 0x561e4b49f1a5 in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::IntExprEvaluator, bool>::Visit(clang::Stmt const*) third_party/llvm/llvm-project/clang/include/clang/AST/StmtVisitor.h
llvm#22 0x561e4b3ff8af in Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16339:41
llvm#23 0x561e4b424658 in EvaluateAsBooleanCondition third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:2742:8
llvm#24 0x561e4b424658 in EvaluateCond((anonymous namespace)::EvalInfo&, clang::VarDecl const*, clang::Expr const*, bool&) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5182:8
llvm#25 0x561e4b41ea8c in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5555:17
llvm#26 0x561e4b423755 in EvaluateLoopBody((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5221:24
llvm#27 0x561e4b41d597 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5635:28
llvm#28 0x561e4b41d341 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5521:28
llvm#29 0x561e4b40113c in HandleFunctionCall(clang::SourceLocation, clang::FunctionDecl const*, (anonymous namespace)::LValue const*, clang::Expr const*, llvm::ArrayRef<clang::Expr const*>, (anonymous namespace)::CallRef, clang::Stmt const*, (anonymous namespace)::EvalInfo&, clang::APValue&, (anonymous namespace)::LValue const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6520:24
llvm#30 0x561e4b4c9652 in handleCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8332:10
llvm#31 0x561e4b4c9652 in VisitCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8132:10
llvm#32 0x561e4b4c9652 in visitNonBuiltinCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9749:28
llvm#33 0x561e4b4c9652 in (anonymous namespace)::PointerExprEvaluator::VisitCallExpr(clang::CallExpr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9763:12
llvm#34 0x561e4b4c3e5b in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::PointerExprEvaluator, bool>::Visit(clang::Stmt const*) blaze-out/k8-opt-asan/genfiles/third_party/llvm/llvm-project/clang/include/clang/AST/StmtNodes.inc
llvm#35 0x561e4b3ff820 in EvaluatePointer third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9458:60
llvm#36 0x561e4b3ff820 in Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16343:10
llvm#37 0x561e4b41f204 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5511:17
llvm#38 0x561e4b41d341 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5521:28
llvm#39 0x561e4b40113c in HandleFunctionCall(clang::SourceLocation, clang::FunctionDecl const*, (anonymous namespace)::LValue const*, clang::Expr const*, llvm::ArrayRef<clang::Expr const*>, (anonymous namespace)::CallRef, clang::Stmt const*, (anonymous namespace)::EvalInfo&, clang::APValue&, (anonymous namespace)::LValue const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6520:24
llvm#40 0x561e4b4c9652 in handleCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8332:10
llvm#41 0x561e4b4c9652 in VisitCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8132:10
llvm#42 0x561e4b4c9652 in visitNonBuiltinCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9749:28
llvm#43 0x561e4b4c9652 in (anonymous namespace)::PointerExprEvaluator::VisitCallExpr(clang::CallExpr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9763:12
llvm#44 0x561e4b4c3e5b in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::PointerExprEvaluator, bool>::Visit(clang::Stmt const*) blaze-out/k8-opt-asan/genfiles/third_party/llvm/llvm-project/clang/include/clang/AST/StmtNodes.inc
llvm#45 0x561e4b3ff820 in EvaluatePointer third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9458:60
llvm#46 0x561e4b3ff820 in Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16343:10
llvm#47 0x561e4b4ad3c2 in EvaluateAsBooleanCondition third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:2742:8
llvm#48 0x561e4b4ad3c2 in (anonymous namespace)::IntExprEvaluator::VisitCastExpr(clang::CastExpr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:14877:10
llvm#49 0x561e4b49f192 in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::IntExprEvaluator, bool>::Visit(clang::Stmt const*) third_party/llvm/llvm-project/clang/include/clang/AST/StmtVisitor.h
previously allocated by thread T0 here:
#0 0x561e47fe46bd in operator new(unsigned long) third_party/llvm/llvm-project/compiler-rt/lib/asan/asan_new_delete.cpp:86:3
#1 0x561e4b424d00 in __libcpp_operator_new<unsigned long> third_party/crosstool/v18/stable/src/libcxx/include/new:277:10
#2 0x561e4b424d00 in __libcpp_allocate third_party/crosstool/v18/stable/src/libcxx/include/new:301:10
llvm#3 0x561e4b424d00 in allocate third_party/crosstool/v18/stable/src/libcxx/include/__memory/allocator.h:120:32
llvm#4 0x561e4b424d00 in allocate third_party/crosstool/v18/stable/src/libcxx/include/__memory/allocator_traits.h:281:16
llvm#5 0x561e4b424d00 in __construct_node<const std::__u::piecewise_construct_t &, std::__u::tuple<std::__u::pair<const void *, unsigned int> &&>, std::__u::tuple<> > third_party/crosstool/v18/stable/src/libcxx/include/__tree:1820:21
llvm#6 0x561e4b424d00 in std::__u::pair<std::__u::__tree_iterator<std::__u::__value_type<std::__u::pair<void const*, unsigned int>, clang::APValue>, std::__u::__tree_node<std::__u::__value_type<std::__u::pair<void const*, unsigned int>, clang::APValue>, void*>*, long>, bool> std::__u::__tree<std::__u::__value_type<std::__u::pair<void const*, unsigned int>, clang::APValue>, std::__u::__map_value_compare<std::__u::pair<void const*, unsigned int>, std::__u::__value_type<std::__u::pair<void const*, unsigned int>, clang::APValue>, std::__u::less<std::__u::pair<void const*, unsigned int>>, true>, std::__u::allocator<std::__u::__value_type<std::__u::pair<void const*, unsigned int>, clang::APValue>>>::__emplace_unique_key_args<std::__u::pair<void const*, unsigned int>, std::__u::piecewise_construct_t const&, std::__u::tuple<std::__u::pair<void const*, unsigned int>&&>, std::__u::tuple<>>(std::__u::pair<void const*, unsigned int> const&, std::__u::piecewise_construct_t const&, std::__u::tuple<std::__u::pair<void const*, unsigned int>&&>&&, std::__u::tuple<>&&) third_party/crosstool/v18/stable/src/libcxx/include/__tree:1787:25
llvm#7 0x561e4b424a03 in operator[] third_party/crosstool/v18/stable/src/libcxx/include/map:1531:8
llvm#8 0x561e4b424a03 in (anonymous namespace)::CallStackFrame::createLocal(clang::APValue::LValueBase, void const*, clang::QualType, (anonymous namespace)::ScopeKind) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:1963:21
llvm#9 0x561e4b42bd95 in clang::APValue& (anonymous namespace)::CallStackFrame::createTemporary<clang::Expr>(clang::Expr const*, clang::QualType, (anonymous namespace)::ScopeKind, (anonymous namespace)::LValue&) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:1944:10
llvm#10 0x561e4b3ffd17 in Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16367:27
llvm#11 0x561e4b40429c in handleLValueToRValueConversion((anonymous namespace)::EvalInfo&, clang::Expr const*, clang::QualType, (anonymous namespace)::LValue const&, clang::APValue&, bool) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:4518:12
llvm#12 0x561e4b496e9c in handleTrivialCopy((anonymous namespace)::EvalInfo&, clang::ParmVarDecl const*, clang::Expr const*, clang::APValue&, bool) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6469:10
llvm#13 0x561e4b494fdd in HandleConstructorCall(clang::Expr const*, (anonymous namespace)::LValue const&, (anonymous namespace)::CallRef, clang::CXXConstructorDecl const*, (anonymous namespace)::EvalInfo&, clang::APValue&) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6582:12
llvm#14 0x561e4b400cca in HandleConstructorCall(clang::Expr const*, (anonymous namespace)::LValue const&, llvm::ArrayRef<clang::Expr const*>, clang::CXXConstructorDecl const*, (anonymous namespace)::EvalInfo&, clang::APValue&) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6753:10
llvm#15 0x561e4b45cfae in (anonymous namespace)::RecordExprEvaluator::VisitCXXConstructExpr(clang::CXXConstructExpr const*, clang::QualType) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:10792:10
llvm#16 0x561e4b45dae7 in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::RecordExprEvaluator, bool>::Visit(clang::Stmt const*) blaze-out/k8-opt-asan/genfiles/third_party/llvm/llvm-project/clang/include/clang/AST/StmtNodes.inc
llvm#17 0x561e4b3f963e in EvaluateRecord third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:10917:50
llvm#18 0x561e4b3f963e in EvaluateInPlace(clang::APValue&, (anonymous namespace)::EvalInfo&, (anonymous namespace)::LValue const&, clang::Expr const*, bool) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16425:14
llvm#19 0x561e4b3ff0b3 in EvaluateCallArg(clang::ParmVarDecl const*, clang::Expr const*, (anonymous namespace)::CallRef, (anonymous namespace)::EvalInfo&, bool) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6403:8
llvm#20 0x561e4b440530 in EvaluateArgs(llvm::ArrayRef<clang::Expr const*>, (anonymous namespace)::CallRef, (anonymous namespace)::EvalInfo&, clang::FunctionDecl const*, bool) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6442:10
llvm#21 0x561e4b4a503e in handleCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8298:12
llvm#22 0x561e4b4a503e in VisitCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8132:10
llvm#23 0x561e4b4a503e in (anonymous namespace)::IntExprEvaluator::VisitCallExpr(clang::CallExpr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:12700:33
llvm#24 0x561e4b49f1a5 in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::IntExprEvaluator, bool>::Visit(clang::Stmt const*) third_party/llvm/llvm-project/clang/include/clang/AST/StmtVisitor.h
llvm#25 0x561e4b3ff8af in Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16339:41
llvm#26 0x561e4b424658 in EvaluateAsBooleanCondition third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:2742:8
llvm#27 0x561e4b424658 in EvaluateCond((anonymous namespace)::EvalInfo&, clang::VarDecl const*, clang::Expr const*, bool&) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5182:8
llvm#28 0x561e4b41ea8c in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5555:17
llvm#29 0x561e4b423755 in EvaluateLoopBody((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5221:24
llvm#30 0x561e4b41d597 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5635:28
llvm#31 0x561e4b41d341 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5521:28
llvm#32 0x561e4b40113c in HandleFunctionCall(clang::SourceLocation, clang::FunctionDecl const*, (anonymous namespace)::LValue const*, clang::Expr const*, llvm::ArrayRef<clang::Expr const*>, (anonymous namespace)::CallRef, clang::Stmt const*, (anonymous namespace)::EvalInfo&, clang::APValue&, (anonymous namespace)::LValue const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6520:24
llvm#33 0x561e4b4c9652 in handleCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8332:10
llvm#34 0x561e4b4c9652 in VisitCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8132:10
llvm#35 0x561e4b4c9652 in visitNonBuiltinCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9749:28
llvm#36 0x561e4b4c9652 in (anonymous namespace)::PointerExprEvaluator::VisitCallExpr(clang::CallExpr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9763:12
llvm#37 0x561e4b4c3e5b in clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::PointerExprEvaluator, bool>::Visit(clang::Stmt const*) blaze-out/k8-opt-asan/genfiles/third_party/llvm/llvm-project/clang/include/clang/AST/StmtNodes.inc
llvm#38 0x561e4b3ff820 in EvaluatePointer third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9458:60
llvm#39 0x561e4b3ff820 in Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:16343:10
llvm#40 0x561e4b41f204 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5511:17
llvm#41 0x561e4b41d341 in EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:5521:28
llvm#42 0x561e4b40113c in HandleFunctionCall(clang::SourceLocation, clang::FunctionDecl const*, (anonymous namespace)::LValue const*, clang::Expr const*, llvm::ArrayRef<clang::Expr const*>, (anonymous namespace)::CallRef, clang::Stmt const*, (anonymous namespace)::EvalInfo&, clang::APValue&, (anonymous namespace)::LValue const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:6520:24
llvm#43 0x561e4b4c9652 in handleCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8332:10
llvm#44 0x561e4b4c9652 in VisitCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:8132:10
llvm#45 0x561e4b4c9652 in visitNonBuiltinCallExpr third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9749:28
llvm#46 0x561e4b4c9652 in (anonymous namespace)::PointerExprEvaluator::VisitCallExpr(clang::CallExpr const*) third_party/llvm/llvm-project/clang/lib/AST/ExprConstant.cpp:9763:12
```
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I am building both my application (gtest, to be precise) and
libcfrom sources (branchrelease/9.x) with clang-9 with ubsan (-fsanitize=undefined).When I try to run it, I get stackoverflow (due to infinite recursion) that looks like this:
According to the backtrace, my code is not even executed. Something wrong goes during global initialisation in GoogleTest.
I am sure I am missing something easy and obvious... Can you please help?
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