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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Increment and decrement operators for vector types"
href="https://bugs.llvm.org/show_bug.cgi?id=43520">43520</a>
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<th>Summary</th>
<td>Increment and decrement operators for vector types
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>9.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>other
</td>
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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>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>vasilyz@synopsys.com
</td>
</tr>
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>The compiler reports an error if there's an attempt to increment or decrement a
vector type variable. Consider the following test case:
typedef int v2i32 __attribute__((__vector_size__(8)));
v2i32 func(v2i32 a) {
a+=1;
++a;
a-=1;
--a;
return a;
}
Compiling it with "clang -c test.c" will result in errors being reported:
test.c:4:5: error: cannot increment value of type 'v2i32' (vector of 2 'int'
values)
++a;
^ ~
test.c:6:5: error: cannot decrement value of type 'v2i32' (vector of 2 'int'
values)
--a;
^ ~</pre>
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