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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - LLVM crashes when returning large values by-val an building for sparc64"
href="https://bugs.llvm.org/show_bug.cgi?id=48699">48699</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>LLVM crashes when returning large values by-val an building for sparc64
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>Backend: Sparc
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>simonas+llvm.org@kazlauskas.me
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Code
define i2048 @test() unnamed_addr {
start:
ret i2048 0
}
built with `llc -mtriple=sparc64` will fail with the following assertion:
PLEASE submit a bug report to <a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a> and include the crash
backtrace.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-trunk/bin/llc -o
./output.s -mtriple=sparc64 <source>
1. Running pass 'Function Pass Manager' on module '<source>'.
2. Running pass 'Remove dead machine instructions' on function '@test'
<snip>
#4 0x000055c9d8d52d74 (anonymous
namespace)::DeadMachineInstructionElim::eliminateDeadMI(llvm::MachineFunction&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x1bc1d74)
#5 0x000055c9d8d53313 (anonymous
namespace)::DeadMachineInstructionElim::runOnMachineFunction(llvm::MachineFunction&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x1bc2313)
#6 0x000055c9d8e5e2c8
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x1ccd2c8)
#7 0x000055c9d92355e7 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x20a45e7)
#8 0x000055c9d9235d01 llvm::FPPassManager::runOnModule(llvm::Module&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x20a4d01)
#9 0x000055c9d923507f llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x20a407f)
#10 0x000055c9d79aea4a compileModule(char**, llvm::LLVMContext&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x81da4a)
#11 0x000055c9d78ee267 main
(/opt/compiler-explorer/clang-trunk/bin/llc+0x75d267)
<snip></pre>
</div>
</p>
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