[llvm-bugs] [Bug 37343] New: The SSE _mm_invsqrt_ps intrinsic is missing.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=37343

            Bug ID: 37343
           Summary: The SSE _mm_invsqrt_ps intrinsic is missing.
           Product: clang
           Version: trunk
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Headers
          Assignee: unassignedclangbugs at nondot.org
          Reporter: gonzalobg88 at gmail.com
                CC: llvm-bugs at lists.llvm.org

The intel intrinsic guide
https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_invsqrt_ps&expand=4513,3028,3028

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.

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