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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion `Invalid Inst-size!!!' in X86InterleavedAccess.cpp"
href="https://bugs.llvm.org/show_bug.cgi?id=33826">33826</a>
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<th>Summary</th>
<td>Assertion `Invalid Inst-size!!!' in X86InterleavedAccess.cpp
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Backend: X86
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>paul_robinson@playstation.sony.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=18809" name="attach_18809" title="Full crash report">attachment 18809</a> <a href="attachment.cgi?id=18809&action=edit" title="Full crash report">[details]</a></span>
Full crash report
$ cat bz180454.cpp
typedef double __attribute__((ext_vector_type(4))) double4;
double4 a;
double4 test161_funcid33732(double4 b) {
return __builtin_shufflevector(a.wxxx, b, 0, 4, 0, 0);
}
$ clang -c -O2 bz180454.cpp -march=btver2
clang-5.0:
/home/probinson/projects/llvm-org/trunk/llvm/lib/Target/X86/X86InterleavedAccess.cpp:130:
void {anonymous}::X86InterleavedAccessGroup::decompose(llvm::Instruction*,
unsigned int, llvm::VectorType*, llvm::SmallVectorImpl<llvm::Instruction*>&):
Assertion `VecTy->isVectorTy() && DL.getTypeSizeInBits(VecTy) >=
DL.getTypeSizeInBits(SubVecTy) * NumSubVectors && "Invalid Inst-size!!!"'
failed.
I don't get a failure with r306050, but it fails with r306100.
Most likely suspect looks like r306068.</pre>
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