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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 - [WebAssembly] llvm::TargetLowering::getVectorElementPointer - assertion failed: Converting bits to bytes lost precision"
href="https://bugs.llvm.org/show_bug.cgi?id=42304">42304</a>
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</tr>
<tr>
<th>Summary</th>
<td>[WebAssembly] llvm::TargetLowering::getVectorElementPointer - assertion failed: Converting bits to bytes lost precision
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</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: WebAssembly
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>llvm-dev@redking.me.uk
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Reduced from <a href="https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13905">https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13905</a>
; ModuleID = 'bugpoint-reduced-simplified.bc'
source_filename = "llvm/test/Transforms/InstCombine/apint-shift.ll"
target triple = "wasm32-unknown-unknown"
define void @multiuse_shl_shl_splat() {
bb:
%L = load i16, i16* undef
%E = extractelement <2 x i42> zeroinitializer, i16 %L
store i42 %E, i42* undef
ret void
}
llc -mtriple=wasm32--
.text
.file "apint-shift.ll"
llc: /home/simon/LLVM/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp:5412:
llvm::SDValue
llvm::TargetLowering::getVectorElementPointer(llvm::SelectionDAG&,
llvm::SDValue, llvm::EVT, llvm::SDValue) const: Assertion `EltSize * 8 ==
EltVT.getSizeInBits() && "Converting bits to bytes lost precision"' failed.</pre>
</div>
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