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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [full restrict] Assertion `isAllocaPromotable(AI)`"
href="https://bugs.llvm.org/show_bug.cgi?id=51679">51679</a>
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<th>Summary</th>
<td>[full restrict] Assertion `isAllocaPromotable(AI)`
</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>
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<th>OS</th>
<td>All
</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>Transformation Utilities
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>alina.sbirlea@gmail.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=25202" name="attach_25202" title="Testcase">attachment 25202</a> <a href="attachment.cgi?id=25202&action=edit" title="Testcase">[details]</a></span>
Testcase
With the full restrict support patches, I'm seeing the following assertion:
llvm-project/llvm/lib/Transforms/Utils/PromoteMemoryToRegister.cpp:911: void
(anonymous namespace)::PromoteMem2Reg::run(): Assertion `isAllocaPromotable(AI)
&& "Cannot promote non-promotable alloca!"' failed.
To reproduce:
opt -sroa reduced10_sroa.ll
Partial trace:
#11 0x0000000008077cfa llvm::PromoteMemToReg(llvm::ArrayRef<llvm::AllocaInst*>,
llvm::DominatorTree&, llvm::AssumptionCache*)
llvm-project/llvm/lib/Transforms/Utils/PromoteMemoryToRegister.cpp:1373:3
#12 0x0000000007d16c94 llvm::SROA::promoteAllocas(llvm::Function&)
llvm-project/llvm/lib/Transforms/Scalar/SROA.cpp:5564:3
#13 0x0000000007d1700d llvm::SROA::runImpl(llvm::Function&,
llvm::DominatorTree&, llvm::AssumptionCache&)
llvm-project/llvm/lib/Transforms/Scalar/SROA.cpp:5610:16</pre>
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