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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - When you use long3 type and dynamic array in one function on MIPS,it will make mistake result."
href="http://llvm.org/bugs/show_bug.cgi?id=16434">16434</a>
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<th>Summary</th>
<td>When you use long3 type and dynamic array in one function on MIPS,it will make mistake result.
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>3.3
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Static Analyzer
</td>
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<th>Assignee</th>
<td>kremenek@apple.com
</td>
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<th>Reporter</th>
<td>c.royqin@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>When you use long3 type and dynamic array in one function on MIPS,it will make
mistake result.
For example:
The following code:
#include <stdio.h>
#ifndef int64_t
typedef long long int64_t;
#endif
typedef int64_t int64_t3 _attribute_((ext_vector_type(3)));
typedef int64_t int64_t4 _attribute_((ext_vector_type(4)));
typedef int64_t3 long3;
typedef int64_t4 long4;
long3 test(int y){
int ay;
long3 tt = (long3)
{0xea3a8109867ff85e,0xc777da6f4eae68ab,0xa771ed50562ceae9}
; return tt;
}
void sample_test()
{ long3 yulei = test(1); printf("******%llx\n",yulei.s0);
printf("******%llx\n",yulei.s1); printf("******%llx\n",yulei.s2); }
int main()
{
sample_test();
return 0;
}
The Expected result is :
******ea3a8109867ff85e
******c777da6f4eae68ab
******a771ed50562ceae9
But the actual result is :
******ea3a8109867ff85e
******c777da6f4eae68ab
******c777da6f4eae68ab
It is a Clang's bug on MIPS.</pre>
</div>
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