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<head>
<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ICE: UNREACHABLE executed at llvm-project/clang/lib/AST/ASTContext.cpp:10247!"
href="https://bugs.llvm.org/show_bug.cgi?id=50831">50831</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>ICE: UNREACHABLE executed at llvm-project/clang/lib/AST/ASTContext.cpp:10247!
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>cnsun@uwaterloo.ca
</td>
</tr>
<tr>
<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
</td>
</tr></table>
<p>
<div>
<pre>$ clang-trunk -v
clang version 13.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
5c8659801a4976ef2b327f4071d98086efd42a36)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$ cat mutant.c
#include <stdarg.h>
#include <stdbool.h>
bar() { va_arg(ap, bool); }
$ clang-trunk mutant.c
mutant.c:3:1: warning: type specifier missing, defaults to 'int'
[-Wimplicit-int]
bar() { va_arg(ap, bool); }
^
Unexpected unsigned integer or fixed point type
UNREACHABLE executed at
/tmp/tmp.FIfHBNID2p-clang-builder/llvm-project/clang/lib/AST/ASTContext.cpp:10247!
PLEASE submit a bug report to <a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a> and include the crash
backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: /scratch/software/clang-trunk/bin/clang-13 -cc1
-triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all --mrelax-relocations
-disable-free -main-file-name mutant.c -mrelocation-model static
-mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases
-munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb
-fcoverage-compilation-dir=/scratch/cnsun/workspace/perses-fuzzer/default_c_finding_folder/crash_20210623_145313_037e/delta/perses_result
-resource-dir /scratch/software/clang-trunk/lib/clang/13.0.0 -c-isystem .
-c-isystem /usr/local/include/cmsith -internal-isystem
/scratch/software/clang-trunk/lib/clang/13.0.0/include -internal-isystem
/usr/local/include -internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include
-fdebug-compilation-dir=/scratch/cnsun/workspace/perses-fuzzer/default_c_finding_folder/crash_20210623_145313_037e/delta/perses_result
-ferror-limit 19 -fgnuc-version=4.2.1 -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1
-o /tmp/mutant-975802.o -x c mutant.c
1. mutant.c:3:25: current parser token ';'
2. mutant.c:3:7: parsing function body 'bar'
3. mutant.c:3:7: in compound statement ('{}')
#0 0x000055d2938d9c64 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
#1 0x000055d2938d741e SignalHandler(int) Signals.cpp:0:0
#2 0x00007f9f411803c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
#3 0x00007f9f40c1f18b raise
/build/glibc-ZN95T4/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
#4 0x00007f9f40bfe859 abort /build/glibc-ZN95T4/glibc-2.31/stdlib/abort.c:81:7
#5 0x000055d29382614e (/scratch/software/clang-trunk/bin/clang-13+0x389b14e)
#6 0x000055d29672bba0
clang::ASTContext::getCorrespondingSignedType(clang::QualType) const
(/scratch/software/clang-trunk/bin/clang-13+0x67a0ba0)
#7 0x000055d295f82e2a clang::Sema::BuildVAArgExpr(clang::SourceLocation,
clang::Expr*, clang::TypeSourceInfo*, clang::SourceLocation)
(/scratch/software/clang-trunk/bin/clang-13+0x5ff7e2a)
#8 0x000055d295f82f2a clang::Sema::ActOnVAArg(clang::SourceLocation,
clang::Expr*, clang::OpaquePtr<clang::QualType>, clang::SourceLocation)
(/scratch/software/clang-trunk/bin/clang-13+0x5ff7f2a)
#9 0x000055d295b51b74 clang::Parser::ParseBuiltinPrimaryExpression()
(/scratch/software/clang-trunk/bin/clang-13+0x5bc6b74)
#10 0x000055d295b49859
clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&,
clang::Parser::TypeCastState, bool, bool*)
(/scratch/software/clang-trunk/bin/clang-13+0x5bbe859)
#11 0x000055d295b4c23b
clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool,
clang::Parser::TypeCastState, bool, bool*)
(/scratch/software/clang-trunk/bin/clang-13+0x5bc123b)
#12 0x000055d295b4c2dd
clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState)
(/scratch/software/clang-trunk/bin/clang-13+0x5bc12dd)
#13 0x000055d295b4f83d
clang::Parser::ParseExpression(clang::Parser::TypeCastState)
(/scratch/software/clang-trunk/bin/clang-13+0x5bc483d)
#14 0x000055d295bb743e
clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext)
(/scratch/software/clang-trunk/bin/clang-13+0x5c2c43e)
#15 0x000055d295bae9d2
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::ParsedAttributesWithRange&)
(/scratch/software/clang-trunk/bin/clang-13+0x5c239d2)
#16 0x000055d295baf3ba
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
(/scratch/software/clang-trunk/bin/clang-13+0x5c243ba)
#17 0x000055d295bb0339 clang::Parser::ParseCompoundStatementBody(bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5c25339)
#18 0x000055d295bb294a clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&)
(/scratch/software/clang-trunk/bin/clang-13+0x5c2794a)
#19 0x000055d295af8c22
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
(/scratch/software/clang-trunk/bin/clang-13+0x5b6dc22)
#20 0x000055d295b25580 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)
(/scratch/software/clang-trunk/bin/clang-13+0x5b9a580)
#21 0x000055d295af3426
clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/scratch/software/clang-trunk/bin/clang-13+0x5b68426)
#22 0x000055d295af3a11
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.0) Parser.cpp:0:0
#23 0x000055d295afa217
clang::Parser::ParseExternalDeclaration(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*) (/scratch/software/clang-trunk/bin/clang-13+0x5b6f217)
#24 0x000055d295afb7ae
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5b707ae)
#25 0x000055d295aedff9 clang::ParseAST(clang::Sema&, bool, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5b62ff9)
#26 0x000055d294a35678 clang::CodeGenAction::ExecuteAction()
(/scratch/software/clang-trunk/bin/clang-13+0x4aaa678)
#27 0x000055d2942e5029 clang::FrontendAction::Execute()
(/scratch/software/clang-trunk/bin/clang-13+0x435a029)
#28 0x000055d2942781e6
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/scratch/software/clang-trunk/bin/clang-13+0x42ed1e6)
#29 0x000055d2943c2eb0
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/scratch/software/clang-trunk/bin/clang-13+0x4437eb0)
#30 0x000055d2911eb6f6 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/scratch/software/clang-trunk/bin/clang-13+0x12606f6)
#31 0x000055d2911e7a38 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
driver.cpp:0:0
#32 0x000055d2911150a6 main
(/scratch/software/clang-trunk/bin/clang-13+0x118a0a6)
#33 0x00007f9f40c000b3 __libc_start_main
/build/glibc-ZN95T4/glibc-2.31/csu/../csu/libc-start.c:342:3
#34 0x000055d2911e75ae _start
(/scratch/software/clang-trunk/bin/clang-13+0x125c5ae)
clang-13: error: unable to execute command: Aborted (core dumped)
clang-13: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 13.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
5c8659801a4976ef2b327f4071d98086efd42a36)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
clang-13: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-13: note: diagnostic msg: /tmp/mutant-4191f4.c
clang-13: note: diagnostic msg: /tmp/mutant-4191f4.sh
clang-13: note: diagnostic msg:
********************</pre>
</div>
</p>
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