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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Improve printf format string diagnostics for vector types"
href="https://bugs.llvm.org/show_bug.cgi?id=39652">39652</a>
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<th>Summary</th>
<td>Improve printf format string diagnostics for vector types
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>OpenCL
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>Matthew.Arsenault@amd.com
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<th>CC</th>
<td>anastasia.stulova@arm.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>Currently printf format string warnings don't bother checking anything about
the v modifier for vectors.
r346806 includes some example cases that should warn, such as:
// FIXME: This should warn
kernel void format_missing_num_elts(float4 arg)
{
printf("%vf\n", arg); // expected-no-diagnostics
}
// FIXME: This should warn
kernel void vector_precision_modifier_v4i32(int4 arg)
{
printf("%.2v4f\n", arg); // expected-no-diagnostics
}</pre>
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