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<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 - SelectionDAG.cpp:4662: llvm::SDValue llvm::SelectionDAG::getNode(unsigned int, const llvm::SDLoc &, llvm::EVT, llvm::SDValue, const llvm::SDNodeFlags): Assertion `VT.isInteger() && Operand.getValueType().isInteger() && "Invalid TRUNCATE!"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=44990">44990</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>SelectionDAG.cpp:4662: llvm::SDValue llvm::SelectionDAG::getNode(unsigned int, const llvm::SDLoc &, llvm::EVT, llvm::SDValue, const llvm::SDNodeFlags): Assertion `VT.isInteger() && Operand.getValueType().isInteger() && "Invalid TRUNCATE!"' failed.
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>10.0
</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>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>bero@lindev.ch
</td>
</tr>
<tr>
<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Spotted while crosscompiling musl from x86_64 to aarch64 - looks like something
that will happen on a native aarch64 compiler as well.
-frounding-math is needed.
Test case can be reduced to a one-liner.
$ echo 'float a() { return 0; }' >test.c
$ clang -target aarch64-openmandriva-linux-gnu -frounding-math -o test.o -c
test.c
clang:
/builddir/build/BUILD/llvm-project-release-10.x/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:4662:
llvm::SDValue llvm::SelectionDAG::getNode(unsigned int, const llvm::SDLoc &,
llvm::EVT, llvm::SDValue, const llvm::SDNodeFlags): Assertion `VT.isInteger()
&& Operand.getValueType().isInteger() && "Invalid TRUNCATE!"' failed.
Stack dump:
0. Program arguments: clang -target aarch64-openmandriva-linux-gnu
-frounding-math -o test.o -c test.c
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module 'test.c'.
4. Running pass 'AArch64 Instruction Selection' on function '@a'
#0 0x00007f5f2eb6df02 (/usr/lib64/libLLVMSupport.so.10.0+0x21bf02)
#1 0x00007f5f2eb6b4ae llvm::sys::RunSignalHandlers()
(/usr/lib64/libLLVMSupport.so.10.0+0x2194ae)
#2 0x00007f5f2eb6cf60 llvm::sys::CleanupOnSignal(unsigned long)
(/usr/lib64/libLLVMSupport.so.10.0+0x21af60)
#3 0x00007f5f2ea8ac13 (/usr/lib64/libLLVMSupport.so.10.0+0x138c13)
#4 0x00007f5f2ea8ad83 (/usr/lib64/libLLVMSupport.so.10.0+0x138d83)
#5 0x00007f5f2e5c8980 __restore_rt (/lib64/libc.so.6+0x44980)
#6 0x00007f5f2e5c88f7 raise (/lib64/libc.so.6+0x448f7)
#7 0x00007f5f2e5a953d abort (/lib64/libc.so.6+0x2553d)
#8 0x00007f5f2e5a9411 _nl_load_domain.cold (/lib64/libc.so.6+0x25411)
#9 0x00007f5f2e5b9912 (/lib64/libc.so.6+0x35912)
#10 0x00007f5f2e24bded llvm::SelectionDAG::getNode(unsigned int, llvm::SDLoc
const&, llvm::EVT, llvm::SDValue, llvm::SDNodeFlags)
(/usr/lib64/libLLVMSelectionDAG.so.10.0+0x300ded)
#11 0x00007f5f2e10d510 (/usr/lib64/libLLVMSelectionDAG.so.10.0+0x1c2510)
#12 0x00007f5f2e10bf3f llvm::SelectionDAG::Legalize()
(/usr/lib64/libLLVMSelectionDAG.so.10.0+0x1c0f3f)
#13 0x00007f5f2e2a5dea llvm::SelectionDAGISel::CodeGenAndEmitDAG()
(/usr/lib64/libLLVMSelectionDAG.so.10.0+0x35adea)
#14 0x00007f5f2e2a3afe
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&)
(/usr/lib64/libLLVMSelectionDAG.so.10.0+0x358afe)
#15 0x00007f5f2e2a039b
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&)
(/usr/lib64/libLLVMSelectionDAG.so.10.0+0x35539b)
#16 0x00007f5f313bfb0e
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
(/usr/lib64/libLLVMCodeGen.so.10.0+0x43eb0e)
#17 0x00007f5f2f01fdaf llvm::FPPassManager::runOnFunction(llvm::Function&)
(/usr/lib64/libLLVMCore.so.10.0+0x38fdaf)
#18 0x00007f5f2f020183 llvm::FPPassManager::runOnModule(llvm::Module&)
(/usr/lib64/libLLVMCore.so.10.0+0x390183)
#19 0x00007f5f2f020809 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/usr/lib64/libLLVMCore.so.10.0+0x390809)
#20 0x00007f5f318cdb6b clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout
const&, llvm::Module*, clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >)
(/usr/lib64/libclangCodeGen.so.10.0+0x249b6b)
#21 0x00007f5f31c1d0f0 (/usr/lib64/libclangCodeGen.so.10.0+0x5990f0)
#22 0x00007f5f2c962864 clang::ParseAST(clang::Sema&, bool, bool)
(/usr/lib64/libclangParse.so.10.0+0x6c864)
#23 0x00007f5f31c18285 clang::CodeGenAction::ExecuteAction()
(/usr/lib64/libclangCodeGen.so.10.0+0x594285)
#24 0x00007f5f303b7cdd clang::FrontendAction::Execute()
(/usr/lib64/libclangFrontend.so.10.0+0x174cdd)
#25 0x00007f5f3033d19a
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/usr/lib64/libclangFrontend.so.10.0+0xfa19a)
#26 0x00007f5f3264a9b4
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/usr/lib64/libclangFrontendTool.so.10.0+0x59b4)
#27 0x00000000002180d0 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/usr/bin/clang-10+0x2180d0)
#28 0x0000000000215fe1 (/usr/bin/clang-10+0x215fe1)
#29 0x00007f5f300abd62 (/usr/lib64/libclangDriver.so.10.0+0xf7d62)
#30 0x00007f5f2ea8ab21
llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>)
(/usr/lib64/libLLVMSupport.so.10.0+0x138b21)
#31 0x00007f5f300ab167
clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
<span class="quote">>, std::__cxx11::basic_string<char, std::char_traits<char>,</span >
std::allocator<char> >*, bool*) const
(/usr/lib64/libclangDriver.so.10.0+0xf7167)
#32 0x00007f5f30072a5a
clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&,
clang::driver::Command const*&) const
(/usr/lib64/libclangDriver.so.10.0+0xbea5a)
#33 0x00007f5f30072f7a
clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const
(/usr/lib64/libclangDriver.so.10.0+0xbef7a)
#34 0x00007f5f3008ee37
clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&)
(/usr/lib64/libclangDriver.so.10.0+0xdae37)
#35 0x0000000000214fde main (/usr/bin/clang-10+0x214fde)
#36 0x00007f5f2e5aadbb __libc_start_main (/lib64/libc.so.6+0x26dbb)
#37 0x0000000000211a2a _start (/usr/bin/clang-10+0x211a2a)
clang-10: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 10.0.0
Target: aarch64-openmandriva-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
clang-10: note: diagnostic msg: 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.
clang-10: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-10: note: diagnostic msg: /tmp/test-cd715c.c
clang-10: note: diagnostic msg: /tmp/test-cd715c.sh
clang-10: note: diagnostic msg:
********************</pre>
</div>
</p>
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