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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - PowerPC64: Invalid stxv emitted - not a multiple of 16"
href="https://bugs.llvm.org/show_bug.cgi?id=33671">33671</a>
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<th>Summary</th>
<td>PowerPC64: Invalid stxv emitted - not a multiple of 16
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
</td>
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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>Backend: PowerPC
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>anton@samba.org
</td>
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<th>CC</th>
<td>echristo@gmail.com, hfinkel@anl.gov, kbarton@linux.vnet.ibm.com, llvm-bugs@lists.llvm.org, nemanja.i.ibm@gmail.com
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<p>
<div>
<pre>I'm seeing an invalid stxv when building the following test case:
#include <string.h>
struct {
int a;
int b;
} c[3];
int *d;
int e, f;
void g(void)
{
int h = 0;
for (; h < 3; h++) {
memset(&c[h], 0, sizeof *c);
for (; e;)
d[f] = 0;
}
}
# clang -O2 -mcpu=power9 -S foo.c
# gcc -c foo.s
foo.s:41: Error: operand out of domain (8 is not a multiple of 16)
Note: It looks like the integrated assembler accepts the invalid input and just
truncates the offset. It would be nice to emit an error like gas does.</pre>
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