https://llvm.org/bugs/show_bug.cgi?id=31795
Bug ID: 31795
Summary: clang crashes on valid code with -fsanitize=undefined
on x86_64-linux-gnu: Assertion `C1->getType() ==
C2->getType() && "Operand types in binary constant
expres sion should match"' failed
Product: clang
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: s...@cs.ucdavis.edu
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
This looks like a recent regression.
$ clang -v
clang version 5.0.0 (trunk 293389)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/clang-trunk/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9.4
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.6.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.2.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$
$ clang -fsanitize=undefined small.c
clang-5.0: /tmp/llvm-builder/llvm-source-trunk/lib/IR/Constants.cpp:1735:
static llvm::Constant* llvm::ConstantExpr::get(unsigned int, llvm::Constant*,
llvm::Constant*, unsigned int, llvm::Type*): Assertion `C1->getType() ==
C2->getType() && "Operand types in binary constant expression should match"'
failed.
#0 0x00000000020583f5 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/usr/local/clang-trunk/bin/clang-5.0+0x20583f5)
#1 0x000000000205651e llvm::sys::RunSignalHandlers()
(/usr/local/clang-trunk/bin/clang-5.0+0x205651e)
#2 0x0000000002056680 SignalHandler(int)
(/usr/local/clang-trunk/bin/clang-5.0+0x2056680)
#3 0x00007f7e4122c330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x00007f7e40018c37 gsignal
/build/eglibc-oGUzwX/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0
#5 0x00007f7e4001c028 abort
/build/eglibc-oGUzwX/eglibc-2.19/stdlib/abort.c:91:0
#6 0x00007f7e40011bf6 __assert_fail_base
/build/eglibc-oGUzwX/eglibc-2.19/assert/assert.c:92:0
#7 0x00007f7e40011ca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2)
#8 0x0000000001b9e9c0 llvm::ConstantExpr::get(unsigned int, llvm::Constant*,
llvm::Constant*, unsigned int, llvm::Type*)
(/usr/local/clang-trunk/bin/clang-5.0+0x1b9e9c0)
#9 0x00000000022bbd2b llvm::IRBuilder<llvm::ConstantFolder,
clang::CodeGen::CGBuilderInserter>::CreateSub(llvm::Value*, llvm::Value*,
llvm::Twine const&, bool, bool)
(/usr/local/clang-trunk/bin/clang-5.0+0x22bbd2b)
#10 0x00000000023a77b2 (anonymous
namespace)::ScalarExprEmitter::EmitShl((anonymous namespace)::BinOpInfo const&)
(/usr/local/clang-trunk/bin/clang-5.0+0x23a77b2)
#11 0x00000000023af6b1 (anonymous
namespace)::ScalarExprEmitter::Visit(clang::Expr*)
(/usr/local/clang-trunk/bin/clang-5.0+0x23af6b1)
#12 0x00000000023b16d3
clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool)
(/usr/local/clang-trunk/bin/clang-5.0+0x23b16d3)
#13 0x000000000221d33a
clang::CodeGen::CodeGenFunction::EmitReturnStmt(clang::ReturnStmt const&)
(/usr/local/clang-trunk/bin/clang-5.0+0x221d33a)
#14 0x000000000222049f
clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt
const&, bool, clang::CodeGen::AggValueSlot)
(/usr/local/clang-trunk/bin/clang-5.0+0x222049f)
#15 0x0000000002249552
clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::CodeGen::FunctionArgList&,
clang::Stmt const*) (/usr/local/clang-trunk/bin/clang-5.0+0x2249552)
#16 0x00000000022542cb
clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl,
llvm::Function*, clang::CodeGen::CGFunctionInfo const&)
(/usr/local/clang-trunk/bin/clang-5.0+0x22542cb)
#17 0x0000000002276681
clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl,
llvm::GlobalValue*) (/usr/local/clang-trunk/bin/clang-5.0+0x2276681)
#18 0x0000000002283001
clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl,
llvm::GlobalValue*) (/usr/local/clang-trunk/bin/clang-5.0+0x2283001)
#19 0x0000000002283f21
clang::CodeGen::CodeGenModule::EmitGlobal(clang::GlobalDecl)
(/usr/local/clang-trunk/bin/clang-5.0+0x2283f21)
#20 0x0000000002284614
clang::CodeGen::CodeGenModule::EmitTopLevelDecl(clang::Decl*) [clone
.part.7081] (/usr/local/clang-trunk/bin/clang-5.0+0x2284614)
#21 0x0000000002880e4b (anonymous
namespace)::CodeGeneratorImpl::HandleTopLevelDecl(clang::DeclGroupRef)
(/usr/local/clang-trunk/bin/clang-5.0+0x2880e4b)
#22 0x000000000287897c
clang::BackendConsumer::HandleTopLevelDecl(clang::DeclGroupRef)
(/usr/local/clang-trunk/bin/clang-5.0+0x287897c)
#23 0x0000000002c65e7e clang::ParseAST(clang::Sema&, bool, bool)
(/usr/local/clang-trunk/bin/clang-5.0+0x2c65e7e)
#24 0x000000000287f65a clang::CodeGenAction::ExecuteAction()
(/usr/local/clang-trunk/bin/clang-5.0+0x287f65a)
#25 0x000000000253ffce clang::FrontendAction::Execute()
(/usr/local/clang-trunk/bin/clang-5.0+0x253ffce)
#26 0x0000000002516b0e
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/usr/local/clang-trunk/bin/clang-5.0+0x2516b0e)
#27 0x00000000025d5042
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/usr/local/clang-trunk/bin/clang-5.0+0x25d5042)
#28 0x0000000000c28b68 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/usr/local/clang-trunk/bin/clang-5.0+0xc28b68)
#29 0x0000000000bc67f5 main (/usr/local/clang-trunk/bin/clang-5.0+0xbc67f5)
#30 0x00007f7e40003f45 __libc_start_main
/build/eglibc-oGUzwX/eglibc-2.19/csu/libc-start.c:321:0
#31 0x0000000000c24809 _start (/usr/local/clang-trunk/bin/clang-5.0+0xc24809)
Stack dump:
0. Program arguments: /usr/local/clang-trunk/bin/clang-5.0 -cc1 -triple
x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name
small.c -mrelocation-model static -mthread-model posix -mdisable-fp-elim
-fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables
-fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb
-resource-dir /usr/local/clang-trunk/bin/../lib/clang/5.0.0 -internal-isystem
/usr/local/include -internal-isystem
/usr/local/clang-trunk/bin/../lib/clang/5.0.0/include -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem /include
-internal-externc-isystem /usr/include -fdebug-compilation-dir /data2
-ferror-limit 19 -fmessage-length 141
-fsanitize=alignment,array-bounds,bool,enum,float-cast-overflow,float-divide-by-zero,function,integer-divide-by-zero,nonnull-attribute,null,object-size,return,returns-nonnull-attribute,shift-base,shift-exponent,signed-integer-overflow,unreachable,vla-bound,vptr
-fsanitize-recover=alignment,array-bounds,bool,enum,float-cast-overflow,float-divide-by-zero,function,integer-divide-by-zero,nonnull-attribute,null,object-size,returns-nonnull-attribute,shift-base,shift-exponent,signed-integer-overflow,vla-bound,vptr
-fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -o
/tmp/small-8e7553.o -x c small.c
1. <eof> parser at end of file
2. small.c:1:5: LLVM IR generation of declaration 'main'
3. small.c:1:5: Generating code for declaration 'main'
clang-5.0: error: unable to execute command: Aborted (core dumped)
clang-5.0: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 5.0.0 (trunk 293389)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/clang-trunk/bin
clang-5.0: note: diagnostic msg: PLEASE submit a bug report to
http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and
associated run script.
clang-5.0: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-5.0: note: diagnostic msg: /tmp/small-b90fe5.c
clang-5.0: note: diagnostic msg: /tmp/small-b90fe5.sh
clang-5.0: note: diagnostic msg:
********************
$
--------------------------
int main ()
{
return 0 << 0L;
}
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