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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - int3 __builtin_astype(x, short8) asserts for OpenCL"
href="https://llvm.org/bugs/show_bug.cgi?id=26460">26460</a>
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<th>Summary</th>
<td>int3 __builtin_astype(x, short8) asserts for OpenCL
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>LLVM Codegen
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pjcoup@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>For this file:
typedef int int3 __attribute__((ext_vector_type(3)));
typedef short short8 __attribute((ext_vector_type(8)));
int get(short8 x) {
int3 y = __builtin_astype(x, int3);
return y[0];
}
clang -S -emit-llvm -x cl hits the following assert:
/home/peter/llvm/llvm-trunk-git/llvm/lib/IR/Instructions.cpp:2572: static
llvm::CastInst* llvm::CastInst::Create(llvm::Instruction::CastOps,
llvm::Value*, llvm::Type*, const llvm::Twine&, llvm::Instruction*): Assertion
`castIsValid(op, S, Ty) && "Invalid cast!"' failed.
int3 <-> int4 __builtin_astype works, as does short8 <-> int4.</pre>
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