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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion `(*RBI.getRegBank(DefReg, MRI, TRI)).getID() == AArch64::GPRRegBankID && "Unexpected ext regbank"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=43794">43794</a>
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<th>Summary</th>
<td>Assertion `(*RBI.getRegBank(DefReg, MRI, TRI)).getID() == AArch64::GPRRegBankID && "Unexpected ext regbank"' failed.
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Backend: AArch64
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>leonardchan@google.com
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<th>CC</th>
<td>arnaud.degrandmaison@arm.com, llvm-bugs@lists.llvm.org, peter.smith@linaro.org, Ties.Stuij@arm.com
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<pre>We hit this assertion error in Skia:
clang++:
/b/s/w/ir/k/llvm-project/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp:2070:
virtual bool (anonymous
namespace)::AArch64InstructionSelector::select(llvm::MachineInstr &): Assertion
`(*RBI.getRegBank(DefReg, MRI, TRI)).getID() == AArch64::GPRRegBankID &&
"Unexpected ext regbank"' failed.
Aborted
Reproducer attached. We are still hitting this with ToT Clang and LLVM.</pre>
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