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
