Clang crash on clang::Sema::AddAlignedAttr(clang::Decl*, clang::AttributeCommonInfo const&, clang::Expr*, bool)

[bi6c]

Compiler Explorer: https://godbolt.org/z/n37G736d6

• generated by fuzzer

console:

<source>:7:43: warning: '_BitInt' suffix for literals is a C23 extension [-Wc23-extensions]
    7 |   extern int x[8] __attribute__((aligned(-66666666666666666666wb)));
      |                                           ^
clang: /root/llvm-project/llvm/include/llvm/ADT/APInt.h:1543: uint64_t llvm::APInt::getZExtValue() const: Assertion `getActiveBits() <= 64 && "Too many bits for uint64_t"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang -gdwarf-4 -g -o /app/output.s -fno-verbose-asm -c --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -O2 <source>
1.	<source>:7:68: current parser token ';'
2.	<source>:6:16: parsing function body 'foo'
3.	<source>:6:16: in compound statement ('{}')
 #0 0x0000000003fbcfa8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fbcfa8)
 #1 0x0000000003fba3d4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fba3d4)
 #2 0x0000000003efeba8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x00007fbaed842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00007fbaed8969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x00007fbaed842476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x00007fbaed8287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x00007fbaed82871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x00007fbaed839e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x0000000006a6b5e6 clang::Sema::AddAlignedAttr(clang::Decl*, clang::AttributeCommonInfo const&, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a6b5e6)
#10 0x0000000006a6bbd7 handleAlignedAttr(clang::Sema&, clang::Decl*, clang::ParsedAttr const&) SemaDeclAttr.cpp:0:0
#11 0x0000000006a9154f ProcessDeclAttribute(clang::Sema&, clang::Scope*, clang::Decl*, clang::ParsedAttr const&, clang::Sema::ProcessDeclAttributeOptions const&) (.isra.0) SemaDeclAttr.cpp:0:0
#12 0x0000000006a93dcb clang::Sema::ProcessDeclAttributes(clang::Scope*, clang::Decl*, clang::Declarator const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a93dcb)
#13 0x0000000006a2af78 clang::Sema::ActOnVariableDeclarator(clang::Scope*, clang::Declarator&, clang::DeclContext*, clang::TypeSourceInfo*, clang::LookupResult&, llvm::MutableArrayRef<clang::TemplateParameterList*>, bool&, llvm::ArrayRef<clang::BindingDecl*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a2af78)
#14 0x0000000006a4bbcf clang::Sema::HandleDeclarator(clang::Scope*, clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a4bbcf)
#15 0x0000000006a4c650 clang::Sema::ActOnDeclarator(clang::Scope*, clang::Declarator&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a4c650)
#16 0x000000000669b843 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x669b843)
#17 0x00000000066aaad9 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66aaad9)
#18 0x00000000066b3797 clang::Parser::ParseSimpleDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, bool, clang::Parser::ForRangeInit*, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66b3797)
#19 0x00000000066b3c59 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66b3c59)
#20 0x00000000067746d2 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x67746d2)
#21 0x00000000067753a9 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x67753a9)
#22 0x000000000677d4db clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x677d4db)
#23 0x000000000677dd2a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x677dd2a)
#24 0x00000000066756e3 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66756e3)
#25 0x00000000066ab4dd clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66ab4dd)
#26 0x000000000666851e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x666851e)
#27 0x0000000006668cb9 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6668cb9)
#28 0x000000000667094a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x667094a)
#29 0x00000000066718e5 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66718e5)
#30 0x00000000066636ba clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66636ba)
#31 0x000000000496e308 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x496e308)
#32 0x0000000004c61c75 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4c61c75)
#33 0x0000000004bde97e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4bde97e)
#34 0x0000000004d55741 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4d55741)
#35 0x0000000000d9e07f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xd9e07f)
#36 0x0000000000d94c5a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#37 0x00000000049d59c9 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#38 0x0000000003eff044 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3eff044)
#39 0x00000000049d5fdf clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#40 0x0000000004997eed clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4997eed)
#41 0x0000000004998f7e clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4998f7e)
#42 0x00000000049a1bc5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x49a1bc5)
#43 0x0000000000d9a52f clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xd9a52f)
#44 0x0000000000c4ea64 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xc4ea64)
#45 0x00007fbaed829d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#46 0x00007fbaed829e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#47 0x0000000000d94705 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xd94705)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134

code:

#include <string.h>

void bar(int *);

void foo(void) {
  extern int x[8] __attribute__((aligned(-66666666666666666666wb)));
  int y[8] __attribute__((aligned(128)));
  memcpy(y, x, sizeof(x));
  bar(y);
}

[llvmbot]

@llvm/issue-subscribers-clang-frontend

Author: None (bi6c)

Compiler Explorer: https://godbolt.org/z/n37G736d6 - generated by fuzzer

console:

<source>:7:43: warning: '_BitInt' suffix for literals is a C23 extension [-Wc23-extensions]
    7 |   extern int x[8] __attribute__((aligned(-66666666666666666666wb)));
      |                                           ^
clang: /root/llvm-project/llvm/include/llvm/ADT/APInt.h:1543: uint64_t llvm::APInt::getZExtValue() const: Assertion `getActiveBits() <= 64 && "Too many bits for uint64_t"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang -gdwarf-4 -g -o /app/output.s -fno-verbose-asm -c --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -O2 <source>
1.	<source>:7:68: current parser token ';'
2.	<source>:6:16: parsing function body 'foo'
3.	<source>:6:16: in compound statement ('{}')
 #<!-- -->0 0x0000000003fbcfa8 llvm::sys::PrintStackTrace(llvm::raw_ostream&amp;, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fbcfa8)
 #<!-- -->1 0x0000000003fba3d4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fba3d4)
 #<!-- -->2 0x0000000003efeba8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #<!-- -->3 0x00007fbaed842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #<!-- -->4 0x00007fbaed8969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #<!-- -->5 0x00007fbaed842476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #<!-- -->6 0x00007fbaed8287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #<!-- -->7 0x00007fbaed82871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #<!-- -->8 0x00007fbaed839e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #<!-- -->9 0x0000000006a6b5e6 clang::Sema::AddAlignedAttr(clang::Decl*, clang::AttributeCommonInfo const&amp;, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a6b5e6)
#<!-- -->10 0x0000000006a6bbd7 handleAlignedAttr(clang::Sema&amp;, clang::Decl*, clang::ParsedAttr const&amp;) SemaDeclAttr.cpp:0:0
#<!-- -->11 0x0000000006a9154f ProcessDeclAttribute(clang::Sema&amp;, clang::Scope*, clang::Decl*, clang::ParsedAttr const&amp;, clang::Sema::ProcessDeclAttributeOptions const&amp;) (.isra.0) SemaDeclAttr.cpp:0:0
#<!-- -->12 0x0000000006a93dcb clang::Sema::ProcessDeclAttributes(clang::Scope*, clang::Decl*, clang::Declarator const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a93dcb)
#<!-- -->13 0x0000000006a2af78 clang::Sema::ActOnVariableDeclarator(clang::Scope*, clang::Declarator&amp;, clang::DeclContext*, clang::TypeSourceInfo*, clang::LookupResult&amp;, llvm::MutableArrayRef&lt;clang::TemplateParameterList*&gt;, bool&amp;, llvm::ArrayRef&lt;clang::BindingDecl*&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a2af78)
#<!-- -->14 0x0000000006a4bbcf clang::Sema::HandleDeclarator(clang::Scope*, clang::Declarator&amp;, llvm::MutableArrayRef&lt;clang::TemplateParameterList*&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a4bbcf)
#<!-- -->15 0x0000000006a4c650 clang::Sema::ActOnDeclarator(clang::Scope*, clang::Declarator&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a4c650)
#<!-- -->16 0x000000000669b843 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&amp;, clang::Parser::ParsedTemplateInfo const&amp;, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x669b843)
#<!-- -->17 0x00000000066aaad9 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&amp;, clang::DeclaratorContext, clang::ParsedAttributes&amp;, clang::Parser::ParsedTemplateInfo&amp;, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66aaad9)
#<!-- -->18 0x00000000066b3797 clang::Parser::ParseSimpleDeclaration(clang::DeclaratorContext, clang::SourceLocation&amp;, clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, bool, clang::Parser::ForRangeInit*, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66b3797)
#<!-- -->19 0x00000000066b3c59 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&amp;, clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66b3c59)
#<!-- -->20 0x00000000067746d2 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector&lt;clang::Stmt*, 24u&gt;&amp;, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x67746d2)
#<!-- -->21 0x00000000067753a9 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector&lt;clang::Stmt*, 24u&gt;&amp;, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x67753a9)
#<!-- -->22 0x000000000677d4db clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x677d4db)
#<!-- -->23 0x000000000677dd2a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x677dd2a)
#<!-- -->24 0x00000000066756e3 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&amp;, clang::Parser::ParsedTemplateInfo const&amp;, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66756e3)
#<!-- -->25 0x00000000066ab4dd clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&amp;, clang::DeclaratorContext, clang::ParsedAttributes&amp;, clang::Parser::ParsedTemplateInfo&amp;, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66ab4dd)
#<!-- -->26 0x000000000666851e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, clang::ParsingDeclSpec&amp;, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x666851e)
#<!-- -->27 0x0000000006668cb9 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6668cb9)
#<!-- -->28 0x000000000667094a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x667094a)
#<!-- -->29 0x00000000066718e5 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr&lt;clang::DeclGroupRef&gt;&amp;, clang::Sema::ModuleImportState&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66718e5)
#<!-- -->30 0x00000000066636ba clang::ParseAST(clang::Sema&amp;, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66636ba)
#<!-- -->31 0x000000000496e308 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x496e308)
#<!-- -->32 0x0000000004c61c75 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4c61c75)
#<!-- -->33 0x0000000004bde97e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4bde97e)
#<!-- -->34 0x0000000004d55741 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4d55741)
#<!-- -->35 0x0000000000d9e07f cc1_main(llvm::ArrayRef&lt;char const*&gt;, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xd9e07f)
#<!-- -->36 0x0000000000d94c5a ExecuteCC1Tool(llvm::SmallVectorImpl&lt;char const*&gt;&amp;, llvm::ToolContext const&amp;) driver.cpp:0:0
#<!-- -->37 0x00000000049d59c9 void llvm::function_ref&lt;void ()&gt;::callback_fn&lt;clang::driver::CC1Command::Execute(llvm::ArrayRef&lt;std::optional&lt;llvm::StringRef&gt;&gt;, std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt;&gt;*, bool*) const::'lambda'()&gt;(long) Job.cpp:0:0
#<!-- -->38 0x0000000003eff044 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref&lt;void ()&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3eff044)
#<!-- -->39 0x00000000049d5fdf clang::driver::CC1Command::Execute(llvm::ArrayRef&lt;std::optional&lt;llvm::StringRef&gt;&gt;, std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt;&gt;*, bool*) const (.part.0) Job.cpp:0:0
#<!-- -->40 0x0000000004997eed clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&amp;, clang::driver::Command const*&amp;, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4997eed)
#<!-- -->41 0x0000000004998f7e clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&amp;, llvm::SmallVectorImpl&lt;std::pair&lt;int, clang::driver::Command const*&gt;&gt;&amp;, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4998f7e)
#<!-- -->42 0x00000000049a1bc5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&amp;, llvm::SmallVectorImpl&lt;std::pair&lt;int, clang::driver::Command const*&gt;&gt;&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x49a1bc5)
#<!-- -->43 0x0000000000d9a52f clang_main(int, char**, llvm::ToolContext const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xd9a52f)
#<!-- -->44 0x0000000000c4ea64 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xc4ea64)
#<!-- -->45 0x00007fbaed829d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#<!-- -->46 0x00007fbaed829e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#<!-- -->47 0x0000000000d94705 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xd94705)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134

code:

#include <string.h>

void bar(int *);

void foo(void) {
  extern int x[8] __attribute__((aligned(-66666666666666666666wb)));
  int y[8] __attribute__((aligned(128)));
  memcpy(y, x, sizeof(x));
  bar(y);
}

[zygoloid]

int x __attribute__((aligned(-1i128)));

... crashes the same way with -fms-extensions.

[shafik]

This is just a variant of: #130852

You really need to look for these and list them as related when posting these bugs.