------- Comment #1 from pinskia at gmail dot com 2010-02-19 16:05 -------
Subject: Re: New: g++ does not allow overloading operators for sse types
(__m128, __m128d)
Well there is already a builtin operator+ for vector types with the
generic vector support.
Sent from my iPhone
On Feb 19, 2010, at 7:50 AM, "mr dot nuke dot me at gmail dot com"
<gcc-bugzi...@gcc.gnu.org
> wrote:
> When trying to overload operators for __m128 and __m128d types. For
> example,
> the following code:
>
>
> #include <xmmintrin.h>
> #include <stddef.h>
>
> inline __m128 operator + (const __m128 A, const __m128 B)
> {
> return _mm_add_ps(A, B);
> }
>
> int main()
> {
> float a[4];
> float b[4];
>
> for(size_t i = 0; i < 4; i++)
> {
> a[i] = 2 * i;
> b[i] = 2 * i;
> }
> __m128 sseA, sseB;
> sseA = _mm_loadu_ps(a);
> sseB = _mm_loadu_ps(b);
> __m128 sseSum = sseA + sseB;
> return 0;
> }
>
> Generates
> error: 'float __vector__ operator+(float __vector__, float
> __vector__)' must
> have an argument of class or enumerated type
>
> Compiler options: -O3 -msse
>
> Both ICL (windows and Linux) and MSVC accept this code and compile it
> correctly.
>
>
> --
> Summary: g++ does not allow overloading operators for sse
> types
> (__m128, __m128d)
> Product: gcc
> Version: 4.4.3
> Status: UNCONFIRMED
> Severity: blocker
> Priority: P3
> Component: c++
> AssignedTo: unassigned at gcc dot gnu dot org
> ReportedBy: mr dot nuke dot me at gmail dot com
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43122
>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43122
