[llvm-bugs] [Bug 50834] New: ICE: llvm-project/llvm/lib/IR/Constants.cpp:1980: static llvm::Constant* llvm::ConstantExpr::getCast(unsigned int, llvm::Constant*, llvm::Type*, bool): Assertion `CastInst::castIsValid(opc, C, Ty) && "Invalid constantexpr cast!"' failed.

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Jun 23 20:05:27 PDT 2021 

https://bugs.llvm.org/show_bug.cgi?id=50834

            Bug ID: 50834
           Summary: ICE: llvm-project/llvm/lib/IR/Constants.cpp:1980:
                    static llvm::Constant*
                    llvm::ConstantExpr::getCast(unsigned int,
                    llvm::Constant*, llvm::Type*, bool): Assertion
                    `CastInst::castIsValid(opc, C, Ty) && "Invalid
                    constantexpr cast!"' failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C
          Assignee: unassignedclangbugs at nondot.org
          Reporter: cnsun at uwaterloo.ca
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

$ clang-trunk -v
clang version 13.0.0 (https://github.com/llvm/llvm-project.git
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
div3() {
  double tmp1;
  asm("fscale" : "=t"(tmp1) : "0"(0));
}

$ clang-trunk  mutant.c
mutant.c:1:1: warning: type specifier missing, defaults to 'int'
[-Wimplicit-int]
div3() {
^
mutant.c:4:1: warning: non-void function does not return a value
[-Wreturn-type]
}
^
clang-13:
/tmp/tmp.FIfHBNID2p-clang-builder/llvm-project/llvm/lib/IR/Constants.cpp:1980:
static llvm::Constant* llvm::ConstantExpr::getCast(unsigned int,
llvm::Constant*, llvm::Type*, bool): Assertion `CastInst::castIsValid(opc, C,
Ty) && "Invalid constantexpr cast!"' failed.
PLEASE submit a bug report to https://bugs.llvm.org/ 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_051709_008d/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_051709_008d/delta/perses_result
-ferror-limit 19 -fgnuc-version=4.2.1 -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1
-o /tmp/mutant-8cc571.o -x c mutant.c
1.      <eof> parser at end of file
2.      mutant.c:1:1: LLVM IR generation of declaration 'div3'
3.      mutant.c:1:1: Generating code for declaration 'div3'
 #0 0x000055b4c61ecc64 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
 #1 0x000055b4c61ea41e SignalHandler(int) Signals.cpp:0:0
 #2 0x00007f49000ba3c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
 #3 0x00007f48ffb5918b raise
/build/glibc-ZN95T4/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
 #4 0x00007f48ffb38859 abort /build/glibc-ZN95T4/glibc-2.31/stdlib/abort.c:81:7
 #5 0x00007f48ffb38729 get_sysdep_segment_value
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:509:8
 #6 0x00007f48ffb38729 _nl_load_domain
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:970:34
 #7 0x00007f48ffb49f36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36)
 #8 0x000055b4c5806562 llvm::ConstantExpr::getCast(unsigned int,
llvm::Constant*, llvm::Type*, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x2f68562)
 #9 0x000055b4c3c03224
llvm::IRBuilderBase::CreateCast(llvm::Instruction::CastOps, llvm::Value*,
llvm::Type*, llvm::Twine const&)
(/scratch/software/clang-trunk/bin/clang-13+0x1365224)
#10 0x000055b4c6576b40
clang::CodeGen::CodeGenFunction::EmitAsmStmt(clang::AsmStmt const&)
(/scratch/software/clang-trunk/bin/clang-13+0x3cd8b40)
#11 0x000055b4c657bc2b clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt
const*, llvm::ArrayRef<clang::Attr const*>)
(/scratch/software/clang-trunk/bin/clang-13+0x3cddc2b)
#12 0x000055b4c6581e5c
clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt
const&, bool, clang::CodeGen::AggValueSlot)
(/scratch/software/clang-trunk/bin/clang-13+0x3ce3e5c)
#13 0x000055b4c65d92a1
clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*)
(/scratch/software/clang-trunk/bin/clang-13+0x3d3b2a1)
#14 0x000055b4c65eaafc
clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl,
llvm::Function*, clang::CodeGen::CGFunctionInfo const&)
(/scratch/software/clang-trunk/bin/clang-13+0x3d4cafc)
#15 0x000055b4c6644406
clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl,
llvm::GlobalValue*) (/scratch/software/clang-trunk/bin/clang-13+0x3da6406)
#16 0x000055b4c663ffa5
clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl,
llvm::GlobalValue*) (/scratch/software/clang-trunk/bin/clang-13+0x3da1fa5)
#17 0x000055b4c664040b
clang::CodeGen::CodeGenModule::EmitGlobal(clang::GlobalDecl)
(/scratch/software/clang-trunk/bin/clang-13+0x3da240b)
#18 0x000055b4c6648e72
clang::CodeGen::CodeGenModule::EmitTopLevelDecl(clang::Decl*) (.part.0)
CodeGenModule.cpp:0:0
#19 0x000055b4c734b4f9 (anonymous
namespace)::CodeGeneratorImpl::HandleTopLevelDecl(clang::DeclGroupRef)
ModuleBuilder.cpp:0:0
#20 0x000055b4c733d6e0
clang::BackendConsumer::HandleTopLevelDecl(clang::DeclGroupRef)
(/scratch/software/clang-trunk/bin/clang-13+0x4a9f6e0)
#21 0x000055b4c8400fe4 clang::ParseAST(clang::Sema&, bool, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5b62fe4)
#22 0x000055b4c7348678 clang::CodeGenAction::ExecuteAction()
(/scratch/software/clang-trunk/bin/clang-13+0x4aaa678)
#23 0x000055b4c6bf8029 clang::FrontendAction::Execute()
(/scratch/software/clang-trunk/bin/clang-13+0x435a029)
#24 0x000055b4c6b8b1e6
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/scratch/software/clang-trunk/bin/clang-13+0x42ed1e6)
#25 0x000055b4c6cd5eb0
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/scratch/software/clang-trunk/bin/clang-13+0x4437eb0)
#26 0x000055b4c3afe6f6 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/scratch/software/clang-trunk/bin/clang-13+0x12606f6)
#27 0x000055b4c3afaa38 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
driver.cpp:0:0
#28 0x000055b4c3a280a6 main
(/scratch/software/clang-trunk/bin/clang-13+0x118a0a6)
#29 0x00007f48ffb3a0b3 __libc_start_main
/build/glibc-ZN95T4/glibc-2.31/csu/../csu/libc-start.c:342:3
#30 0x000055b4c3afa5ae _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 (https://github.com/llvm/llvm-project.git
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-f1e4e4.c
clang-13: note: diagnostic msg: /tmp/mutant-f1e4e4.sh
clang-13: note: diagnostic msg:

********************

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20210624/084870f6/attachment.html>

More information about the llvm-bugs mailing list