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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Vectorizing math calls containing pointers"
href="https://bugs.llvm.org/show_bug.cgi?id=38424">38424</a>
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<th>Summary</th>
<td>Vectorizing math calls containing pointers
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<th>Product</th>
<td>new-bugs
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Windows NT
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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>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>llvm-dev@redking.me.uk
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<th>CC</th>
<td>a.bataev@hotmail.com, hfinkel@anl.gov, hideki.saito@intel.com, llvm-bugs@lists.llvm.org, rob.lougher.llvm@gmail.com
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<p>
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<pre>While veclib can handle vectorizing basic math functions, it seems we likely to
struggle with more complex functions that uses a pointer to return some
results:
e.g.
float modff(float arg, float* iptr);
void sincosf(float x, float *s, float *c);
AFAICT if we try to implement these the vectorizers will convert these into:
<4 x float> modff4(<4 x float> arg, <4 x float*> iptr);
void sincosf4(<4 x float> x, <4 x float*> s, <4 x float*> c);
instead of the more useful:
<4 x float> modff4(<4 x float> arg, <4 x float> *iptr);
void sincosf4(<4 x float> x, <4 x float> *s, <4 x float> *c);</pre>
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