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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - The SSE _mm_invsqrt_ps intrinsic is missing."
href="https://bugs.llvm.org/show_bug.cgi?id=37343">37343</a>
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<th>Summary</th>
<td>The SSE _mm_invsqrt_ps intrinsic is missing.
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Headers
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>gonzalobg88@gmail.com
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</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<p>
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<pre>The intel intrinsic guide
<a href="https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_invsqrt_ps&expand=4513,3028,3028">https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_invsqrt_ps&expand=4513,3028,3028</a>
Shows the intrinsic as:
__m128 _mm_invsqrt_ps (__m128 a)
#include <immintrin.h>
CPUID Flags: SSE
Description
Compute the inverse square root of packed single-precision (32-bit)
floating-point elements in a, and store the results in dst.
Operation
FOR j := 0 to 3
i := j*32
dst[i+31:i] := InvSQRT(a[i+31:i])
ENDFOR
dst[MAX:128] := 0
But it is not implemented in the clang headers.</pre>
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